drainage design report - south kesteven
TRANSCRIPT
Drainage Design ReportFlow+v7.0
Copyright © 1988-2019 Causeway Software Solutions Limited
Network Storm Network
Filename Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd
Username Terry Parsons ([email protected])
Last analysed 21/05/2019 18:45:44
Report produced on 21/05/2019 18:59:32
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Flow+ v7.0 Design Report: Design Settings
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Rainfall Methodology FSR
Return Period (years) 100
Additional Flow (%) 40
FSR Region England and Wales
M5-60 (mm) 20.000
Ratio-R 0.450
CV 0.750
Time of Entry (mins) 5.00
Maximum Time of Concentration (mins) 30.00
Maximum Rainfall (mm/hr) 50.0
Minimum Velocity (m/s) 0.10
Connection Type Level Soffits
Minimum Backdrop Height (m) 0.200
Preferred Cover Depth (m) 0.050
Enforce best practice design rules x
Flow+ v7.0 Design Report: Nodes
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
NameArea(ha)
T of E(mins)
AddInflow(l/s)
CoverLevel(m)
NodeType
ManholeType
Diameter(mm)
Width(mm)
Easting(m)
Northing(m)
Depth(m)
Notes
Outlet 20.800Manhole Adoptable 1200 503746.848 307103.760 0.400
Node 2 20.850Manhole Adoptable 1200 503711.457 307155.055 0.364
MH-0001 21.370Manhole Adoptable 1200 503695.212 307178.605 0.760
MH-0002 0.078 5.00 21.600Manhole Adoptable 1500 503676.549 307169.786 0.890
MH-0003 0.117 5.00 22.500Manhole Adoptable 1500 503662.754 307197.335 1.300
MH-0004 23.300Manhole Adoptable 1200 503655.800 307211.571 1.800
MH-0005 0.147 5.00 24.000Manhole Adoptable 1200 503648.546 307226.180 2.200
Node 3 0.078 5.00 20.900Manhole Adoptable 1200 503682.454 307141.740 0.350
Flow+ v7.0 Design Report: Links (Input)
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
NameUS
NodeDS
NodeLength
(m)ks (mm) /
nVelocityEquation
US IL(m)
DS IL(m)
Fall(m)
Slope(1:X)
Dia(mm)
LinkType
T of C(mins)
Rain(mm/hr)
ConOffset
(m)
MinDS IL(m)
LateralArea(ha)
LateralIns Point
(%)
LateralT of E(mins)
? Swale 1 Node 2 Outlet 62.319 0.600Colebrook-White 20.486 20.400 0.086 724.6 300Circular 8.21 50.0
Swale 2 Node 3 Node 2 31.913 0.600Colebrook-White 20.550 20.486 0.064 500.0 300Circular 5.76 50.0
? PN001 MH-0001 Node 2 28.609 0.600Colebrook-White 20.610 20.486 0.124 230.7 225Circular 6.40 50.0
? PN002 MH-0002 MH-0001 20.642 0.600Colebrook-White 20.710 20.610 0.100 206.4 225Circular 5.85 50.0
? PN003 MH-0003 MH-0002 30.810 0.600Colebrook-White 21.200 20.710 0.490 62.9 600Circular 5.47 50.0
? PN004 MH-0004 MH-0003 15.844 0.600Colebrook-White 21.500 21.200 0.300 52.8 225Circular 5.30 50.0
? PN005 MH-0005 MH-0004 16.311 0.600Colebrook-White 21.800 21.500 0.300 54.4 225Circular 5.15 50.0
Flow+ v7.0 Design Report: Links (Results)
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
NameUS
NodeDS
NodeVel
(m/s)Cap(l/s)
Flow(l/s)
USDepth
(m)
DSDepth
(m)
MinimumDepth
(m)
MaximumDepth
(m)
Σ Area(ha)
Σ AddInflow(ha)
ProDepth(mm)
ProVelocity
(m/s)Notes
? Swale 1 Node 2 Outlet 0.576 40.7 79.7 0.064 0.100 0.064 0.100 0.420 0.0 300 0.584Negative backdrop detected
Swale 2 Node 3 Node 2 0.696 49.2 14.8 0.050 0.064 0.050 0.064 0.078 0.0 113 0.611
? PN001 MH-0001 Node 2 0.856 34.0 64.9 0.535 0.139 0.139 0.535 0.342 0.0 225 0.872Link has insufficient capacity | Upstream Depth is more than twice the specified minimum | Downstream Depth is more than twice the specified minimum
? PN002 MH-0002 MH-0001 0.906 36.0 64.9 0.665 0.535 0.535 0.665 0.342 0.0 225 0.923Link has insufficient capacity | Upstream Depth is more than twice the specified minimum | Downstream Depth is more than twice the specified minimum
? PN003 MH-0003 MH-0002 3.074 869.2 50.1 0.700 0.290 0.290 0.700 0.264 0.0 96 1.710Velocity is more than 3 m/s | Upstream Depth is more than twice the specified minimum | Downstream Depth is more than twice the specified minimum
? PN004 MH-0004 MH-0003 1.803 71.7 27.9 1.575 1.075 1.075 1.575 0.147 0.0 97 1.692Upstream Depth is more than twice the specified minimum | Downstream Depth is more than twice the specified minimum
? PN005 MH-0005 MH-0004 1.777 70.7 27.9 1.975 1.575 1.575 1.975 0.147 0.0 98 1.674Upstream Depth is more than twice the specified minimum | Downstream Depth is more than twice the specified minimum
Flow+ v7.0 Design Report: Pipeline Schedule
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
LinkName
Length(m)
Slope(1:X)
Dia(mm)
LinkType
US CL(m)
US IL(m)
USDepth
(m)
DS CL(m)
DS IL(m)
DSDepth
(m)
US NodeName
Dia(mm)
Width(mm)
NodeType
MHType
DS NodeName
Dia(mm)
Width(mm)
NodeType
MHType
Swale 1 62.319 724.6 300Circular 20.850 20.486 0.064 20.800 20.400 0.100Node 2 1200 Manhole Adoptable Outlet 1200 Manhole Adoptable
Swale 2 31.913 500.0 300Circular 20.900 20.550 0.050 20.850 20.486 0.064Node 3 1200 Manhole Adoptable Node 2 1200 Manhole Adoptable
PN001 28.609 230.7 225Circular 21.370 20.610 0.535 20.850 20.486 0.139MH-0001 1200 Manhole Adoptable Node 2 1200 Manhole Adoptable
PN002 20.642 206.4 225Circular 21.600 20.710 0.665 21.370 20.610 0.535MH-0002 1500 Manhole Adoptable MH-0001 1200 Manhole Adoptable
PN003 30.810 62.9 600Circular 22.500 21.200 0.700 21.600 20.710 0.290MH-0003 1500 Manhole Adoptable MH-0002 1500 Manhole Adoptable
PN004 15.844 52.8 225Circular 23.300 21.500 1.575 22.500 21.200 1.075MH-0004 1200 Manhole Adoptable MH-0003 1500 Manhole Adoptable
PN005 16.311 54.4 225Circular 24.000 21.800 1.975 23.300 21.500 1.575MH-0005 1200 Manhole Adoptable MH-0004 1200 Manhole Adoptable
Flow+ v7.0 Design Report: Manhole Schedule
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
NodeName
Easting(m)
Northing(m)
CL(m)
Depth(m)
Dia(mm)
Width(mm)
NodeType
MHType
LinkID
IL(m)
Dia(mm)
LinkType
Outlet 503746.848 307103.760 20.800 0.400 1200 Manhole Adoptable 1 Swale 1 20.400 300Circular
Node 2 503711.457 307155.055 20.850 0.364 1200 Manhole Adoptable 1 Swale 2 20.486 300Circular
2 PN001 20.486 225Circular
0 Swale 1 20.486 300Circular
MH-0001 503695.212 307178.605 21.370 0.760 1200 Manhole Adoptable 1 PN002 20.610 225Circular
0 PN001 20.610 225Circular
MH-0002 503676.549 307169.786 21.600 0.890 1500 Manhole Adoptable 1 PN003 20.710 600Circular
0 PN002 20.710 225Circular
MH-0003 503662.754 307197.335 22.500 1.300 1500 Manhole Adoptable 1 PN004 21.200 225Circular
0 PN003 21.200 600Circular
MH-0004 503655.800 307211.571 23.300 1.800 1200 Manhole Adoptable 1 PN005 21.500 225Circular
0 PN004 21.500 225Circular
MH-0005 503648.546 307226.180 24.000 2.200 1200 Manhole Adoptable
0 PN005 21.800 225Circular
Node 3 503682.454 307141.740 20.900 0.350 1200 Manhole Adoptable
Flow+ v7.0 Design Report: Manhole Schedule
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
0 Swale 2 20.550 300Circular
Flow+ v7.0 Design Report: Simulation Settings
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Rainfall Methodology FSR Return Period (years) Climate Change (%)
FSR Region England and Wales 1 0
M5-60 (mm) 20.000 2 0
Ratio-R 0.450 5 0
Summer CV 0.750 10 0
Winter CV 0.840 30 0
Analysis Speed Normal 100 0
Drain Down Time (mins) 240 100 40
Additional Storage (m³/ha) 0.0
Storm Durations (mins) 15
30
60
120
180
240
360
480
600
720
960
1440
Check Discharge Rate(s)
1 year (l/s)
30 year (l/s)
100 year (l/s)
Check Discharge Volume
100 year 360 minute (m³)
Flow+ v7.0 Design Report: Pre-development Discharge Rate
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Site Makeup Greenfield
Greenfield Method IH124
Positively Drained Area (ha)
SAAR (mm)
Soil Index 1
SPR 0.10
Region 1
Growth Factor 1 year 0.85
Growth Factor 30 years 1.95
Growth Factor 100 years 2.48
Betterment (%) 0
QBar
Q 1 year (l/s)
Q 30 year (l/s)
Q 100 year (l/s)
Flow+ v7.0 Design Report: Flow Controls
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Orifice
NodeFlap
ValveOnline / Offline
DownstreamLink
ReplacesDownstream
Link
Loopto
Node
InvertLevel(m)
DesignDepth
(m)
DesignFlow(l/s)
Diameter(m)
DischargeCoefficient
Outlet x Online 20.400 0.400 3.6 0.053 0.600
Hydro-Brake®
NodeFlap
ValveOnline / Offline
DownstreamLink
ReplacesDownstream
Link
Loopto
Node
InvertLevel(m)
DesignDepth
(m)
DesignFlow(l/s)
ObjectiveSump
AvailableProductNumber
Min OutletDiameter
(m)
Min NodeDiameter
(mm)
MH-0002 x Online 20.710 0.900 3.2(HE) Minimise upstream storage CTL-SHE-0087-3200-0900-3200 0.100 1200
MH-0003 x Online 21.200 1.200 2.2(HE) Minimise upstream storage CTL-SHE-0068-2200-1200-2200 0.100 1200
MH-0005 x Online 21.800 1.500 1.2(HE) Minimise upstream storage CTL-SHE-0047-1200-1500-1200 0.075 1200
Flow+ v7.0 Design Report: Storage Structures
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Depth/Area/Inf Area
NodeBase Inf
Coefficient(m/hr)
Side InfCoefficient
(m/hr)
SafetyFactor
PorosityInvertLevel(m)
Time tohalf empty
(mins)
Depth(m)
Area(m²)
Inf.Area(m²)
MH-0002 0.00000 0.00000 2.0 1.00 20.710 216 0.000 0.0 0.0
0.500 0.0 0.0
0.510 46.7 0.0
0.750 46.7 0.0
0.760 0.0 0.0
MH-0003 0.00000 0.00000 2.0 1.00 21.200 0.000 0.0 0.0
0.500 0.0 0.0
0.510 158.0 0.0
0.750 158.0 0.0
0.760 0.0 0.0
MH-0005 0.00000 0.00000 2.0 1.00 21.800 0.000 0.0 0.0
0.500 0.0 0.0
0.510 185.0 0.0
0.810 185.0 0.0
0.820 0.0 0.0
Node 2 0.00000 0.00000 2.0 1.00 20.486 0.000 0.0 0.0
0.001 1.0 0.0
0.100 60.0 0.0
0.300 120.0 0.0
Flow+ v7.0 Design Report: Other
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Default Values Overrides
Entry Loss (manhole) 0.250 Link Entry Loss Exit Loss Node Flood Risk (m)
Exit Loss (manhole) 0.250
Entry Loss (junction) 0.000
Exit Loss (junction) 0.000
Flood Risk (m) 0.300
Flow+ v7.0 Design Report: Approval Settings
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Node Size
Node Losses
Link Size
Minimum Diameter (mm) 150
Link Length
Maximum Length (m) 100.000
Coordinates
Accuracy (m) 1.000
Crossings
Cover Depth
Minimum Cover Depth (m)
Maximum Cover Depth (m) 3.000
Backdrops
Minimum Backdrop Height (m)
Maximum Backdrop Height (m) 1.500
Full Bore Velocity
Minimum Full Bore Velocity (m/s)
Maximum Full Bore Velocity (m/s) 3.000
Proportional Velocity
Return Period (years)
Minimum Proportional Velocity (m/s) 0.750
Maximum Proportional Velocity (m/s) 3.000
Surcharged Depth
Return Period (years)
Maximum Surcharged Depth (m) 0.100
Flooding
Return Period (years) 30
Discharge Rates
1 year (l/s)
30 year (l/s)
100 year (l/s)
Discharge Volume
Flow+ v7.0 Design Report: Approval Settings
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
100 year 360 minute (m³)
Flow+ v7.0 Design Report: 1 year Critical
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 1 year Critical Storm Duration. Lowest mass balance: 97.63%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
360 minute winter Outlet 272 20.677 0.277 3.0 0.3130 0.0000OK Orifice 2.9 72.1
360 minute winter Node 2 272 20.677 0.191 4.6 9.9498 0.0000OK Swale 1 Outlet 3.0 0.208 0.073 3.5925
360 minute winter MH-0001 272 20.678 0.068 3.2 0.0767 0.0000OK PN001 Node 2 3.2 0.394 0.094 0.6585
60 minute winter MH-0002 59 21.311 0.601 7.6 5.5364 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
60 minute winter MH-0003 60 21.748 0.548 10.1 7.8022 0.0000OK Hydro-Brake® MH-0002 2.0
60 minute winter MH-0004 59 21.753 0.253 2.6 0.2861 0.0000SURCHARGED PN004 MH-0003 2.4 0.229 0.034 0.6301
120 minute winter MH-0005 118 22.377 0.577 6.6 13.8914 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
360 minute winter Node 3 272 20.677 0.127 1.6 0.1438 0.0000OK Swale 2 Node 2 1.5 0.181 0.030 1.2090
Flow+ v7.0 Design Report: 2 year Critical
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 2 year Critical Storm Duration. Lowest mass balance: 97.63%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
480 minute winter Outlet 352 20.700 0.300 3.1 0.3390 0.0000OK Orifice 3.1 91.8
480 minute winter Node 2 352 20.700 0.214 4.6 12.0660 0.0000OK Swale 1 Outlet 3.1 0.233 0.076 3.8691
480 minute winter MH-0001 352 20.701 0.091 3.2 0.1027 0.0000OK PN001 Node 2 3.2 0.385 0.094 0.7729
60 minute winter MH-0002 60 21.354 0.644 9.1 7.6178 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
60 minute winter MH-0003 60 21.768 0.568 12.0 10.9507 0.0000OK Hydro-Brake® MH-0002 2.0
60 minute winter MH-0004 58 21.773 0.273 2.7 0.3087 0.0000SURCHARGED PN004 MH-0003 -1.9 0.229 -0.027 0.6301
120 minute winter MH-0005 118 22.402 0.602 8.3 18.5876 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
480 minute winter Node 3 352 20.700 0.150 1.5 0.1698 0.0000OK Swale 2 Node 2 1.4 0.125 0.029 1.4212
Flow+ v7.0 Design Report: 5 year Critical
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 5 year Critical Storm Duration. Lowest mass balance: 97.63%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
600 minute winter Outlet 480 20.719 0.319 3.2 0.3610 0.0000OK Orifice 3.2 115.4
600 minute winter Node 2 480 20.720 0.234 4.6 13.9818 0.0000OK Swale 1 Outlet 3.2 0.181 0.078 4.0287
600 minute winter MH-0001 465 20.720 0.110 3.2 0.1247 0.0000OK PN001 Node 2 3.2 0.374 0.094 0.8455
60 minute winter MH-0002 60 21.410 0.700 11.1 10.3367 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
120 minute winter MH-0003 116 21.795 0.595 9.7 15.2757 0.0000OK Hydro-Brake® MH-0002 2.0
120 minute winter MH-0004 112 21.800 0.300 1.5 0.3391 0.0000SURCHARGED PN004 MH-0003 1.7 0.214 0.024 0.6301
180 minute winter MH-0005 176 22.436 0.636 7.6 25.0073 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
600 minute winter Node 3 480 20.720 0.170 1.6 0.1918 0.0000OK Swale 2 Node 2 1.5 0.114 0.031 1.5945
Flow+ v7.0 Design Report: 10 year Critical
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 10 year Critical Storm Duration. Lowest mass balance: 97.63%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
720 minute winter Outlet 555 20.739 0.339 3.3 0.3834 0.0000OK Orifice 3.3 136.5
720 minute winter Node 2 555 20.740 0.253 4.6 16.0510 0.0000OK Swale 1 Outlet 3.3 0.178 0.080 4.1729
720 minute winter MH-0001 540 20.740 0.130 3.2 0.1468 0.0000OK PN001 Node 2 3.2 0.366 0.093 0.9081
60 minute winter MH-0002 61 21.454 0.744 12.6 12.4625 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
120 minute winter MH-0003 118 21.818 0.618 10.7 19.0044 0.0000SURCHARGED Hydro-Brake® MH-0002 2.0
120 minute winter MH-0004 118 21.818 0.318 1.3 0.3601 0.0000SURCHARGED PN004 MH-0003 1.8 0.197 0.025 0.6301
180 minute winter MH-0005 180 22.464 0.664 8.9 30.1900 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
720 minute winter Node 3 555 20.740 0.190 1.6 0.2144 0.0000OK Swale 2 Node 2 1.5 0.119 0.031 1.7616
Flow+ v7.0 Design Report: 30 year Critical
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 30 year Critical Storm Duration. Lowest mass balance: 97.63%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
240 minute winter Outlet 232 20.778 0.378 3.5 0.4280 0.0000OK Orifice 3.5 85.9
240 minute winter Node 2 232 20.779 0.293 7.2 20.5267 0.0000OK Swale 1 Outlet 3.5 0.301 0.085 4.3754
240 minute winter MH-0001 232 20.780 0.170 3.2 0.1921 0.0000OK PN001 Node 2 3.2 0.507 0.094 1.0289
120 minute winter MH-0002 76 21.600 0.890 10.3 13.2476 3.5019FLOOD Hydro-Brake® MH-0001 3.2
120 minute winter MH-0003 120 21.867 0.667 13.1 26.7605 0.0000SURCHARGED Hydro-Brake® MH-0002 2.0
120 minute winter MH-0004 120 21.867 0.367 1.0 0.4150 0.0000SURCHARGED PN004 MH-0003 1.1 0.193 0.016 0.6301
240 minute winter MH-0005 236 22.523 0.723 9.1 41.0809 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
240 minute winter Node 3 232 20.779 0.229 4.8 0.2591 0.0000OK Swale 2 Node 2 4.6 0.291 0.093 2.0380
Flow+ v7.0 Design Report: 100 year Critical
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 100 year Critical Storm Duration. Lowest mass balance: 97.63%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
240 minute winter Outlet 160 20.800 0.400 7.0 0.4524 4.7548FLOOD Orifice 3.6 89.1
240 minute winter Node 2 160 20.803 0.317 8.8 23.4118 0.0000FLOOD RISK Swale 1 Outlet 7.0 0.290 0.172 4.3885
240 minute winter MH-0001 160 20.804 0.194 3.2 0.2193 0.0000OK PN001 Node 2 3.2 0.552 0.094 1.0897
120 minute winter MH-0002 66 21.600 0.890 12.9 13.2476 10.7537FLOOD Hydro-Brake® MH-0001 3.2
180 minute winter MH-0003 180 21.939 0.739 12.6 38.2110 0.0000SURCHARGED Hydro-Brake® MH-0002 2.0
180 minute winter MH-0004 180 21.939 0.439 0.8 0.4961 0.0000SURCHARGED PN004 MH-0003 1.0 0.202 0.014 0.6301
240 minute winter MH-0005 240 22.609 0.809 11.9 57.1866 0.0000SURCHARGED Hydro-Brake® MH-0004 0.9
240 minute winter Node 3 160 20.803 0.253 6.3 0.2863 0.0000OK Swale 2 Node 2 6.0 0.290 0.123 2.1357
Flow+ v7.0 Design Report: 100 year +40% Critical
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 100 year +40% Critical Storm Duration. Lowest mass balance: 97.63%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
480 minute winter Outlet 248 20.800 0.400 8.3 0.4524 21.0305FLOOD Orifice 3.6 134.7
120 minute winter Node 2 76 20.812 0.326 17.3 24.5380 0.0000FLOOD RISK Swale 1 Outlet 14.2 0.333 0.349 4.3885
120 minute winter MH-0001 76 20.813 0.203 3.2 0.2299 0.0000OK PN001 Node 2 3.2 0.641 0.094 1.1092
180 minute winter MH-0002 84 21.600 0.890 13.1 13.2476 25.0559FLOOD Hydro-Brake® MH-0001 3.2
240 minute winter MH-0003 148 22.500 1.300 14.0 41.7971 19.7219FLOOD Hydro-Brake® MH-0002 2.0
120 minute winter MH-0004 76 22.526 1.026 2.2 1.1608 0.0000SURCHARGED PN004 MH-0003 3.5 0.203 0.049 0.6301
480 minute winter MH-0005 280 24.000 2.200 9.5 59.8382 22.6642FLOOD Hydro-Brake® MH-0004 1.4
120 minute winter Node 3 76 20.815 0.265 15.2 0.2996 0.0000OK Swale 2 Node 2 14.6 0.412 0.297 2.1742
Flow+ v7.0 Design Report: 1 year 15 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 1 year 15 minute summer. 255 minute analysis at 1 minute timestep. Mass balance: 97.63%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
15 minute summer Outlet 88 20.603 0.203 8.0 0.2293 0.0000OK Orifice 2.5 25.9
15 minute summer Node 2 87 20.603 0.117 13.5 4.2379 0.0000OK Swale 1 Outlet 8.0 0.399 0.195 2.3733
15 minute summer MH-0001 6 20.658 0.048 3.2 0.0540 0.0000OK PN001 Node 2 3.2 0.681 0.095 0.3792
15 minute summer MH-0002 18 21.276 0.566 12.8 3.8636 0.0000SURCHARGED Hydro-Brake® MH-0001 3.2
15 minute summer MH-0003 18 21.730 0.530 20.9 4.9419 0.0000OK Hydro-Brake® MH-0002 2.0
15 minute summer MH-0004 18 21.736 0.236 5.8 0.2668 0.0000SURCHARGED PN004 MH-0003 5.3 0.240 0.074 0.6301
15 minute summer MH-0005 19 22.349 0.549 20.5 8.7107 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
15 minute summer Node 3 10 20.647 0.097 10.9 0.1097 0.0000OK Swale 2 Node 2 10.6 0.666 0.216 0.5556
Flow+ v7.0 Design Report: 1 year 15 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 1 year 15 minute winter. 255 minute analysis at 1 minute timestep. Mass balance: 98.23%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
15 minute winter Outlet 101 20.608 0.208 8.1 0.2353 0.0000OK Orifice 2.5 28.6
15 minute winter Node 2 101 20.609 0.123 14.0 4.5932 0.0000OK Swale 1 Outlet 8.1 0.406 0.198 2.4682
15 minute winter MH-0001 6 20.658 0.048 3.2 0.0546 0.0000OK PN001 Node 2 3.2 0.687 0.095 0.3964
15 minute winter MH-0002 18 21.288 0.578 13.3 4.4207 0.0000SURCHARGED Hydro-Brake® MH-0001 3.2
15 minute winter MH-0003 18 21.736 0.536 18.7 5.7666 0.0000OK Hydro-Brake® MH-0002 2.0
15 minute winter MH-0004 16 21.741 0.241 7.8 0.2728 0.0000SURCHARGED PN004 MH-0003 -7.0 0.240 -0.098 0.6301
15 minute winter MH-0005 19 22.354 0.554 21.5 9.7108 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
15 minute winter Node 3 10 20.650 0.100 11.4 0.1127 0.0000OK Swale 2 Node 2 11.1 0.651 0.226 0.5878
Flow+ v7.0 Design Report: 1 year 30 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 1 year 30 minute summer. 270 minute analysis at 1 minute timestep. Mass balance: 99.79%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
30 minute summer Outlet 117 20.618 0.217 6.0 0.2460 0.0000OK Orifice 2.6 32.2
30 minute summer Node 2 117 20.618 0.132 12.5 5.2469 0.0000OK Swale 1 Outlet 6.0 0.338 0.148 2.6352
30 minute summer MH-0001 112 20.656 0.046 3.2 0.0522 0.0000OK PN001 Node 2 3.2 0.638 0.094 0.4269
30 minute summer MH-0002 32 21.289 0.579 11.5 4.4976 0.0000SURCHARGED Hydro-Brake® MH-0001 3.2
30 minute summer MH-0003 32 21.738 0.538 16.7 6.1142 0.0000OK Hydro-Brake® MH-0002 2.0
30 minute summer MH-0004 33 21.742 0.242 4.4 0.2736 0.0000SURCHARGED PN004 MH-0003 -3.6 0.240 -0.051 0.6301
30 minute summer MH-0005 33 22.355 0.555 18.0 9.8962 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
30 minute summer Node 3 18 20.642 0.092 9.6 0.1045 0.0000OK Swale 2 Node 2 9.7 0.569 0.196 0.6685
Flow+ v7.0 Design Report: 1 year 30 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 1 year 30 minute winter. 270 minute analysis at 1 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
30 minute winter Outlet 135 20.623 0.223 6.2 0.2521 0.0000OK Orifice 2.6 34.8
30 minute winter Node 2 135 20.623 0.137 11.5 5.6267 0.0000OK Swale 1 Outlet 6.2 0.350 0.153 2.7285
30 minute winter MH-0001 9 20.656 0.046 3.2 0.0524 0.0000OK PN001 Node 2 3.2 0.650 0.094 0.4440
30 minute winter MH-0002 32 21.305 0.595 10.6 5.2556 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
30 minute winter MH-0003 32 21.744 0.544 14.6 7.1393 0.0000OK Hydro-Brake® MH-0002 2.0
30 minute winter MH-0004 34 21.748 0.248 2.7 0.2809 0.0000SURCHARGED PN004 MH-0003 2.4 0.229 0.034 0.6301
30 minute winter MH-0005 33 22.363 0.563 16.3 11.2934 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
30 minute winter Node 3 18 20.637 0.087 8.7 0.0984 0.0000OK Swale 2 Node 2 8.8 0.532 0.178 0.7150
Flow+ v7.0 Design Report: 1 year 60 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 1 year 60 minute summer. 300 minute analysis at 1 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
60 minute summer Outlet 150 20.632 0.232 3.6 0.2622 0.0000OK Orifice 2.7 38.7
60 minute summer Node 2 149 20.632 0.146 9.9 6.2815 0.0000OK Swale 1 Outlet 3.6 0.310 0.089 2.8824
60 minute summer MH-0001 145 20.656 0.046 3.2 0.0522 0.0000OK PN001 Node 2 3.2 0.590 0.094 0.4720
60 minute summer MH-0002 60 21.293 0.583 9.0 4.6759 0.0000SURCHARGED Hydro-Brake® MH-0001 3.2
60 minute summer MH-0003 57 21.740 0.540 12.4 6.4242 0.0000OK Hydro-Brake® MH-0002 2.0
60 minute summer MH-0004 58 21.745 0.245 2.4 0.2767 0.0000SURCHARGED PN004 MH-0003 1.8 0.229 0.025 0.6301
60 minute summer MH-0005 62 22.363 0.563 13.3 11.3078 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
60 minute summer Node 3 150 20.632 0.082 7.1 0.0933 0.0000OK Swale 2 Node 2 7.1 0.422 0.144 0.7947
Flow+ v7.0 Design Report: 1 year 60 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 1 year 60 minute winter. 300 minute analysis at 1 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
60 minute winter Outlet 169 20.637 0.237 4.0 0.2683 0.0000OK Orifice 2.7 41.6
60 minute winter Node 2 168 20.638 0.152 8.5 6.6918 0.0000OK Swale 1 Outlet 4.0 0.319 0.099 2.9747
60 minute winter MH-0001 22 20.656 0.046 3.2 0.0522 0.0000OK PN001 Node 2 3.2 0.611 0.094 0.4888
60 minute winter MH-0002 59 21.311 0.601 7.6 5.5364 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
60 minute winter MH-0003 60 21.748 0.548 10.1 7.8022 0.0000OK Hydro-Brake® MH-0002 2.0
60 minute winter MH-0004 59 21.753 0.253 2.6 0.2861 0.0000SURCHARGED PN004 MH-0003 2.4 0.229 0.034 0.6301
60 minute winter MH-0005 61 22.372 0.572 10.8 13.1080 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
60 minute winter Node 3 169 20.638 0.088 5.7 0.0994 0.0000OK Swale 2 Node 2 5.7 0.361 0.116 0.8437
Flow+ v7.0 Design Report: 1 year 120 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 1 year 120 minute summer. 360 minute analysis at 2 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
120 minute summer Outlet 194 20.645 0.245 3.0 0.2767 0.0000OK Orifice 2.7 47.0
120 minute summer Node 2 194 20.645 0.159 7.4 7.2773 0.0000OK Swale 1 Outlet 3.0 0.279 0.074 3.1001
120 minute summer MH-0001 190 20.656 0.046 3.2 0.0522 0.0000OK PN001 Node 2 3.2 0.518 0.094 0.5112
120 minute summer MH-0002 94 21.287 0.577 6.5 4.3592 0.0000SURCHARGED Hydro-Brake® MH-0001 3.2
120 minute summer MH-0003 88 21.737 0.537 8.1 6.0465 0.0000OK Hydro-Brake® MH-0002 2.0
120 minute summer MH-0004 92 21.742 0.242 2.3 0.2733 0.0000SURCHARGED PN004 MH-0003 1.9 0.229 0.026 0.6301
120 minute summer MH-0005 120 22.364 0.564 8.6 11.6396 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
120 minute summer Node 3 194 20.645 0.095 4.6 0.1075 0.0000OK Swale 2 Node 2 4.6 0.313 0.093 0.9113
Flow+ v7.0 Design Report: 1 year 120 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 1 year 120 minute winter. 360 minute analysis at 2 minute timestep. Mass balance: 99.91%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
120 minute winter Outlet 122 20.652 0.252 2.9 0.2845 0.0000OK Orifice 2.8 50.5
120 minute winter Node 2 122 20.652 0.166 6.1 7.8204 0.0000OK Swale 1 Outlet 2.9 0.296 0.071 3.2116
120 minute winter MH-0001 208 20.656 0.046 3.2 0.0522 0.0000OK PN001 Node 2 3.2 0.529 0.094 0.5304
120 minute winter MH-0002 98 21.301 0.591 5.4 5.0541 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
120 minute winter MH-0003 96 21.745 0.545 6.6 7.3552 0.0000OK Hydro-Brake® MH-0002 2.0
120 minute winter MH-0004 96 21.751 0.251 1.5 0.2834 0.0000SURCHARGED PN004 MH-0003 1.8 0.229 0.024 0.6301
120 minute winter MH-0005 118 22.377 0.577 6.6 13.8914 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
120 minute winter Node 3 212 20.652 0.102 3.5 0.1152 0.0000OK Swale 2 Node 2 3.3 0.302 0.068 0.9740
Flow+ v7.0 Design Report: 1 year 180 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 1 year 180 minute summer. 420 minute analysis at 4 minute timestep. Mass balance: 99.95%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
180 minute summer Outlet 224 20.652 0.252 2.9 0.2854 0.0000OK Orifice 2.8 53.2
180 minute summer Node 2 224 20.653 0.167 6.1 7.8873 0.0000OK Swale 1 Outlet 2.9 0.267 0.070 3.2244
180 minute summer MH-0001 80 20.656 0.046 3.2 0.0521 0.0000OK PN001 Node 2 3.2 0.483 0.093 0.5345
180 minute summer MH-0002 128 21.277 0.567 5.3 3.8875 0.0000SURCHARGED Hydro-Brake® MH-0001 3.2
180 minute summer MH-0003 124 21.735 0.535 5.9 5.6903 0.0000OK Hydro-Brake® MH-0002 2.0
180 minute summer MH-0004 132 21.740 0.240 1.3 0.2712 0.0000SURCHARGED PN004 MH-0003 1.5 0.238 0.021 0.6301
180 minute summer MH-0005 152 22.363 0.563 6.4 11.3621 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
180 minute summer Node 3 224 20.653 0.103 3.4 0.1163 0.0000OK Swale 2 Node 2 3.2 0.290 0.066 0.9826
Flow+ v7.0 Design Report: 1 year 180 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 1 year 180 minute winter. 420 minute analysis at 4 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
180 minute winter Outlet 180 20.660 0.260 2.9 0.2941 0.0000OK Orifice 2.8 57.4
180 minute winter Node 2 180 20.661 0.175 5.3 8.5236 0.0000OK Swale 1 Outlet 2.9 0.257 0.070 3.3465
180 minute winter MH-0001 180 20.662 0.052 3.2 0.0586 0.0000OK PN001 Node 2 3.2 0.460 0.094 0.5714
180 minute winter MH-0002 136 21.286 0.576 4.5 4.3366 0.0000SURCHARGED Hydro-Brake® MH-0001 3.2
180 minute winter MH-0003 136 21.741 0.541 5.2 6.6708 0.0000OK Hydro-Brake® MH-0002 2.0
180 minute winter MH-0004 148 21.745 0.245 1.3 0.2774 0.0000SURCHARGED PN004 MH-0003 1.6 0.229 0.022 0.6301
180 minute winter MH-0005 172 22.375 0.575 4.9 13.5410 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
180 minute winter Node 3 180 20.660 0.110 2.6 0.1249 0.0000OK Swale 2 Node 2 2.5 0.199 0.050 1.0538
Flow+ v7.0 Design Report: 1 year 240 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 1 year 240 minute summer. 480 minute analysis at 4 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
240 minute summer Outlet 252 20.659 0.259 2.9 0.2932 0.0000OK Orifice 2.8 58.1
240 minute summer Node 2 252 20.660 0.174 5.6 8.4501 0.0000OK Swale 1 Outlet 2.9 0.251 0.070 3.3332
240 minute summer MH-0001 248 20.661 0.051 3.2 0.0578 0.0000OK PN001 Node 2 3.2 0.482 0.094 0.5660
240 minute summer MH-0002 160 21.266 0.556 4.8 3.3826 0.0000SURCHARGED Hydro-Brake® MH-0001 3.2
240 minute summer MH-0003 160 21.732 0.532 5.7 5.1660 0.0000OK Hydro-Brake® MH-0002 2.0
240 minute summer MH-0004 160 21.732 0.232 1.4 0.2622 0.0000SURCHARGED PN004 MH-0003 1.5 0.238 0.021 0.6301
240 minute summer MH-0005 184 22.361 0.561 5.4 10.9891 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
240 minute summer Node 3 252 20.660 0.110 2.9 0.1241 0.0000OK Swale 2 Node 2 2.7 0.264 0.056 1.0463
Flow+ v7.0 Design Report: 1 year 240 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 1 year 240 minute winter. 480 minute analysis at 4 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
240 minute winter Outlet 260 20.670 0.270 2.9 0.3054 0.0000OK Orifice 2.9 62.9
240 minute winter Node 2 260 20.670 0.184 4.9 9.3692 0.0000OK Swale 1 Outlet 2.9 0.257 0.071 3.4975
240 minute winter MH-0001 256 20.671 0.061 3.2 0.0695 0.0000OK PN001 Node 2 3.2 0.438 0.094 0.6240
240 minute winter MH-0002 172 21.266 0.556 4.0 3.3606 0.0000SURCHARGED Hydro-Brake® MH-0001 3.2
240 minute winter MH-0003 172 21.736 0.536 4.0 5.8210 0.0000OK Hydro-Brake® MH-0002 2.0
240 minute winter MH-0004 172 21.736 0.236 0.8 0.2668 0.0000SURCHARGED PN004 MH-0003 1.5 0.229 0.021 0.6301
240 minute winter MH-0005 196 22.371 0.571 4.0 12.9475 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
240 minute winter Node 3 260 20.671 0.121 2.1 0.1363 0.0000OK Swale 2 Node 2 2.0 0.204 0.040 1.1471
Flow+ v7.0 Design Report: 1 year 360 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 1 year 360 minute summer. 600 minute analysis at 8 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
360 minute summer Outlet 280 20.660 0.260 2.9 0.2940 0.0000OK Orifice 2.8 64.7
360 minute summer Node 2 280 20.660 0.174 5.0 8.5127 0.0000OK Swale 1 Outlet 2.9 0.228 0.071 3.3446
360 minute summer MH-0001 280 20.662 0.052 3.2 0.0588 0.0000OK PN001 Node 2 3.2 0.421 0.093 0.5715
360 minute summer MH-0002 216 21.243 0.533 4.1 2.2634 0.0000SURCHARGED Hydro-Brake® MH-0001 3.2
360 minute summer MH-0003 224 21.726 0.526 4.7 4.1749 0.0000OK Hydro-Brake® MH-0002 2.0
360 minute summer MH-0004 224 21.726 0.225 0.9 0.2550 0.0000SURCHARGED PN004 MH-0003 1.4 0.236 0.019 0.6299
360 minute summer MH-0005 248 22.358 0.558 4.1 10.4188 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
360 minute summer Node 3 280 20.660 0.110 2.2 0.1249 0.0000OK Swale 2 Node 2 2.1 0.181 0.042 1.0531
Flow+ v7.0 Design Report: 1 year 360 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 1 year 360 minute winter. 600 minute analysis at 8 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
360 minute winter Outlet 272 20.677 0.277 3.0 0.3130 0.0000OK Orifice 2.9 72.1
360 minute winter Node 2 272 20.677 0.191 4.6 9.9498 0.0000OK Swale 1 Outlet 3.0 0.208 0.073 3.5925
360 minute winter MH-0001 272 20.678 0.068 3.2 0.0767 0.0000OK PN001 Node 2 3.2 0.394 0.094 0.6585
360 minute winter MH-0002 224 21.224 0.514 3.4 1.3150 0.0000SURCHARGED Hydro-Brake® MH-0001 3.2
360 minute winter MH-0003 248 21.727 0.527 3.2 4.3805 0.0000OK Hydro-Brake® MH-0002 2.0
360 minute winter MH-0004 248 21.727 0.227 0.8 0.2566 0.0000SURCHARGED PN004 MH-0003 1.4 0.229 0.020 0.6300
360 minute winter MH-0005 272 22.367 0.567 3.0 12.0755 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
360 minute winter Node 3 272 20.677 0.127 1.6 0.1438 0.0000OK Swale 2 Node 2 1.5 0.181 0.030 1.2090
Flow+ v7.0 Design Report: 1 year 480 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 1 year 480 minute summer. 720 minute analysis at 8 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
480 minute summer Outlet 320 20.660 0.260 2.9 0.2946 0.0000OK Orifice 2.8 69.6
480 minute summer Node 2 320 20.661 0.175 4.8 8.5550 0.0000OK Swale 1 Outlet 2.9 0.198 0.071 3.3524
480 minute summer MH-0001 320 20.662 0.052 3.2 0.0591 0.0000OK PN001 Node 2 3.2 0.403 0.094 0.5737
480 minute summer MH-0002 280 21.224 0.514 3.6 1.3369 0.0000SURCHARGED Hydro-Brake® MH-0001 3.2
480 minute summer MH-0003 296 21.719 0.519 3.1 3.1418 0.0000OK Hydro-Brake® MH-0002 2.0
480 minute summer MH-0004 296 21.719 0.219 0.8 0.2478 0.0000OK PN004 MH-0003 1.3 0.237 0.018 0.6277
480 minute summer MH-0005 320 22.353 0.553 3.2 9.5944 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
480 minute summer Node 3 320 20.661 0.111 1.7 0.1255 0.0000OK Swale 2 Node 2 1.6 0.149 0.032 1.0578
Flow+ v7.0 Design Report: 1 year 480 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 1 year 480 minute winter. 720 minute analysis at 8 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
480 minute winter Outlet 336 20.669 0.269 2.9 0.3042 0.0000OK Orifice 2.9 77.4
480 minute winter Node 2 336 20.669 0.183 4.4 9.2778 0.0000OK Swale 1 Outlet 2.9 0.228 0.071 3.4816
480 minute winter MH-0001 336 20.670 0.060 3.2 0.0681 0.0000OK PN001 Node 2 3.2 0.386 0.093 0.6179
480 minute winter MH-0002 248 20.911 0.201 3.2 0.3551 0.0000OK Hydro-Brake® MH-0001 3.2
480 minute winter MH-0003 312 21.718 0.518 2.7 2.9139 0.0000OK Hydro-Brake® MH-0002 2.0
480 minute winter MH-0004 312 21.718 0.218 0.8 0.2462 0.0000OK PN004 MH-0003 1.2 0.237 0.017 0.6269
480 minute winter MH-0005 344 22.361 0.561 2.4 10.9067 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
480 minute winter Node 3 336 20.669 0.119 1.3 0.1351 0.0000OK Swale 2 Node 2 1.2 0.125 0.024 1.1371
Flow+ v7.0 Design Report: 1 year 600 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 1 year 600 minute summer. 840 minute analysis at 15 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
600 minute summer Outlet 375 20.653 0.253 2.8 0.2856 0.0000OK Orifice 2.8 72.5
600 minute summer Node 2 375 20.653 0.167 4.5 7.9032 0.0000OK Swale 1 Outlet 2.8 0.164 0.069 3.2276
600 minute summer MH-0001 315 20.656 0.046 3.2 0.0522 0.0000OK PN001 Node 2 3.2 0.392 0.094 0.5307
600 minute summer MH-0002 315 20.981 0.271 3.4 0.4780 0.0000SURCHARGED Hydro-Brake® MH-0001 3.2
600 minute summer MH-0003 360 21.714 0.514 2.9 2.3651 0.0000OK Hydro-Brake® MH-0002 2.0
600 minute summer MH-0004 360 21.714 0.214 0.8 0.2423 0.0000OK PN004 MH-0003 1.3 0.228 0.018 0.6244
600 minute summer MH-0005 390 22.350 0.550 2.6 8.9337 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
600 minute summer Node 3 375 20.653 0.103 1.4 0.1165 0.0000OK Swale 2 Node 2 1.3 0.113 0.026 0.9842
Flow+ v7.0 Design Report: 1 year 600 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 1 year 600 minute winter. 840 minute analysis at 15 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
600 minute winter Outlet 405 20.661 0.261 2.9 0.2952 0.0000OK Orifice 2.8 82.3
600 minute winter Node 2 405 20.662 0.175 4.1 8.6034 0.0000OK Swale 1 Outlet 2.9 0.194 0.070 3.3613
600 minute winter MH-0001 405 20.662 0.052 3.1 0.0593 0.0000OK PN001 Node 2 3.1 0.377 0.090 0.5757
600 minute winter MH-0002 315 20.871 0.161 3.1 0.2844 0.0000OK Hydro-Brake® MH-0001 3.1
600 minute winter MH-0003 375 21.708 0.508 2.3 1.3513 0.0000OK Hydro-Brake® MH-0002 2.0
600 minute winter MH-0004 375 21.708 0.208 0.8 0.2348 0.0000OK PN004 MH-0003 1.1 0.235 0.016 0.6187
600 minute winter MH-0005 420 22.356 0.556 2.0 9.9808 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
600 minute winter Node 3 405 20.662 0.112 1.1 0.1261 0.0000OK Swale 2 Node 2 1.0 0.106 0.021 1.0632
Flow+ v7.0 Design Report: 1 year 720 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 1 year 720 minute summer. 960 minute analysis at 15 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
720 minute summer Outlet 465 20.649 0.249 2.8 0.2811 0.0000OK Orifice 2.8 75.8
720 minute summer Node 2 465 20.649 0.163 4.2 7.5814 0.0000OK Swale 1 Outlet 2.8 0.162 0.068 3.1629
720 minute summer MH-0001 375 20.656 0.046 3.1 0.0518 0.0000OK PN001 Node 2 3.1 0.383 0.092 0.5099
720 minute summer MH-0002 375 20.901 0.191 3.2 0.3376 0.0000OK Hydro-Brake® MH-0001 3.1
720 minute summer MH-0003 420 21.708 0.508 2.4 1.3648 0.0000OK Hydro-Brake® MH-0002 2.0
720 minute summer MH-0004 420 21.708 0.208 0.8 0.2349 0.0000OK PN004 MH-0003 1.1 0.234 0.016 0.6188
720 minute summer MH-0005 465 22.346 0.546 2.3 8.2093 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
720 minute summer Node 3 465 20.649 0.099 1.2 0.1120 0.0000OK Swale 2 Node 2 1.1 0.114 0.023 0.9472
Flow+ v7.0 Design Report: 1 year 720 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 1 year 720 minute winter. 960 minute analysis at 15 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
720 minute winter Outlet 465 20.657 0.257 2.8 0.2902 0.0000OK Orifice 2.8 84.9
720 minute winter Node 2 465 20.657 0.171 3.7 8.2354 0.0000OK Swale 1 Outlet 2.8 0.201 0.069 3.2923
720 minute winter MH-0001 465 20.658 0.048 2.9 0.0544 0.0000OK PN001 Node 2 2.9 0.383 0.085 0.5520
720 minute winter MH-0002 390 20.831 0.121 2.9 0.2133 0.0000OK Hydro-Brake® MH-0001 2.9
720 minute winter MH-0003 405 21.528 0.328 2.2 0.5804 0.0000OK Hydro-Brake® MH-0002 2.0
720 minute winter MH-0004 405 21.529 0.029 0.8 0.0322 0.0000OK PN004 MH-0003 0.8 0.228 0.011 0.3381
720 minute winter MH-0005 495 22.348 0.548 1.7 8.6029 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
720 minute winter Node 3 465 20.657 0.107 0.9 0.1211 0.0000OK Swale 2 Node 2 0.8 0.144 0.017 1.0220
Flow+ v7.0 Design Report: 1 year 960 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 1 year 960 minute summer. 1200 minute analysis at 15 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
960 minute summer Outlet 570 20.645 0.245 2.8 0.2769 0.0000OK Orifice 2.7 81.9
960 minute summer Node 2 570 20.645 0.159 3.9 7.2921 0.0000OK Swale 1 Outlet 2.8 0.162 0.068 3.1032
960 minute summer MH-0001 495 20.655 0.045 3.0 0.0505 0.0000OK PN001 Node 2 3.0 0.375 0.088 0.4968
960 minute summer MH-0002 495 20.849 0.139 3.0 0.2452 0.0000OK Hydro-Brake® MH-0001 3.0
960 minute summer MH-0003 510 21.544 0.344 2.3 0.6075 0.0000OK Hydro-Brake® MH-0002 2.0
960 minute summer MH-0004 510 21.544 0.044 0.8 0.0493 0.0000OK PN004 MH-0003 0.8 0.198 0.011 0.3577
960 minute summer MH-0005 585 22.338 0.538 1.9 6.6980 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
960 minute summer Node 3 570 20.645 0.095 1.0 0.1079 0.0000OK Swale 2 Node 2 0.9 0.108 0.019 0.9138
Flow+ v7.0 Design Report: 1 year 960 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 1 year 960 minute winter. 1200 minute analysis at 15 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
960 minute winter Outlet 585 20.630 0.230 2.7 0.2604 0.0000OK Orifice 2.6 90.3
960 minute winter Node 2 585 20.631 0.145 3.2 6.1730 0.0000OK Swale 1 Outlet 2.7 0.173 0.065 2.8567
960 minute winter MH-0001 510 20.651 0.041 2.5 0.0467 0.0000OK PN001 Node 2 2.5 0.366 0.075 0.4493
960 minute winter MH-0002 510 20.806 0.096 2.5 0.1702 0.0000OK Hydro-Brake® MH-0001 2.5
960 minute winter MH-0003 510 21.350 0.150 1.9 0.2644 0.0000OK Hydro-Brake® MH-0002 1.8
960 minute winter MH-0004 390 21.517 0.017 0.8 0.0192 0.0000OK PN004 MH-0003 0.8 0.191 0.011 0.2322
960 minute winter MH-0005 630 22.336 0.536 1.4 6.3743 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
960 minute winter Node 3 585 20.631 0.081 0.7 0.0914 0.0000OK Swale 2 Node 2 0.7 0.143 0.014 0.7808
Flow+ v7.0 Design Report: 1 year 1440 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 1 year 1440 minute summer. 1680 minute analysis at 30 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
1440 minute summer Outlet 810 20.610 0.210 2.5 0.2375 0.0000OK Orifice 2.5 89.5
1440 minute summer Node 2 810 20.611 0.125 3.2 4.7336 0.0000OK Swale 1 Outlet 2.5 0.163 0.062 2.5037
1440 minute summer MH-0001 750 20.651 0.041 2.5 0.0466 0.0000OK PN001 Node 2 2.5 0.369 0.074 0.3829
1440 minute summer MH-0002 750 20.806 0.096 2.5 0.1692 0.0000OK Hydro-Brake® MH-0001 2.5
1440 minute summer MH-0003 750 21.345 0.145 1.8 0.2557 0.0000OK Hydro-Brake® MH-0002 1.8
1440 minute summer MH-0004 660 21.517 0.017 0.8 0.0192 0.0000OK PN004 MH-0003 0.8 0.190 0.011 0.2238
1440 minute summer MH-0005 840 22.325 0.525 1.4 4.2122 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
1440 minute summer Node 3 810 20.611 0.061 0.7 0.0687 0.0000OK Swale 2 Node 2 0.7 0.099 0.013 0.6042
Flow+ v7.0 Design Report: 1 year 1440 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 1 year 1440 minute winter. 1680 minute analysis at 30 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
1440 minute winter Outlet 840 20.589 0.189 2.4 0.2134 0.0000OK Orifice 2.4 100.1
1440 minute winter Node 2 840 20.590 0.104 2.5 3.3577 0.0000OK Swale 1 Outlet 2.4 0.163 0.058 2.1258
1440 minute winter MH-0001 780 20.647 0.037 2.0 0.0420 0.0000OK PN001 Node 2 2.0 0.355 0.060 0.3144
1440 minute winter MH-0002 780 20.788 0.078 2.0 0.1377 0.0000OK Hydro-Brake® MH-0001 2.0
1440 minute winter MH-0003 780 21.287 0.087 1.5 0.1532 0.0000OK Hydro-Brake® MH-0002 1.5
1440 minute winter MH-0004 630 21.517 0.017 0.8 0.0192 0.0000OK PN004 MH-0003 0.8 0.174 0.011 0.1216
1440 minute winter MH-0005 900 22.318 0.518 1.0 2.9501 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
1440 minute winter Node 3 840 20.590 0.040 0.5 0.0451 0.0000OK Swale 2 Node 2 0.5 0.102 0.010 0.4325
Flow+ v7.0 Design Report: 2 year 15 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 2 year 15 minute summer. 255 minute analysis at 1 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
15 minute summer Outlet 120 20.615 0.215 9.1 0.2432 0.0000OK Orifice 2.5 31.8
15 minute summer Node 2 120 20.616 0.130 16.5 5.0757 0.0000OK Swale 1 Outlet 9.1 0.418 0.224 2.5922
15 minute summer MH-0001 6 20.658 0.048 3.2 0.0544 0.0000OK PN001 Node 2 3.2 0.677 0.095 0.4190
15 minute summer MH-0002 19 21.304 0.594 16.0 5.2078 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
15 minute summer MH-0003 19 21.743 0.543 24.1 6.9439 0.0000OK Hydro-Brake® MH-0002 2.0
15 minute summer MH-0004 15 21.748 0.248 7.9 0.2801 0.0000SURCHARGED PN004 MH-0003 -7.2 0.240 -0.100 0.6301
15 minute summer MH-0005 19 22.359 0.559 26.5 10.6436 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
15 minute summer Node 3 10 20.660 0.110 14.1 0.1242 0.0000OK Swale 2 Node 2 13.7 0.740 0.278 0.6515
Flow+ v7.0 Design Report: 2 year 15 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 2 year 15 minute winter. 255 minute analysis at 1 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
15 minute winter Outlet 137 20.621 0.221 9.5 0.2496 0.0000OK Orifice 2.6 34.3
15 minute winter Node 2 137 20.621 0.135 17.2 5.4706 0.0000OK Swale 1 Outlet 9.5 0.421 0.234 2.6903
15 minute winter MH-0001 5 20.658 0.048 3.2 0.0545 0.0000OK PN001 Node 2 3.3 0.675 0.096 0.4370
15 minute winter MH-0002 18 21.320 0.610 16.7 5.9589 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
15 minute winter MH-0003 18 21.750 0.550 22.7 8.0602 0.0000OK Hydro-Brake® MH-0002 2.0
15 minute winter MH-0004 21 21.754 0.254 4.4 0.2875 0.0000SURCHARGED PN004 MH-0003 4.0 0.229 0.055 0.6301
15 minute winter MH-0005 19 22.366 0.566 27.8 12.0070 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
15 minute winter Node 3 10 20.663 0.113 14.8 0.1279 0.0000OK Swale 2 Node 2 14.4 0.719 0.292 0.6965
Flow+ v7.0 Design Report: 2 year 30 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 2 year 30 minute summer. 270 minute analysis at 1 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
30 minute summer Outlet 156 20.630 0.230 6.3 0.2600 0.0000OK Orifice 2.6 37.8
30 minute summer Node 2 155 20.630 0.144 15.1 6.1435 0.0000OK Swale 1 Outlet 6.3 0.341 0.155 2.8501
30 minute summer MH-0001 7 20.656 0.046 3.2 0.0525 0.0000OK PN001 Node 2 3.2 0.654 0.094 0.4662
30 minute summer MH-0002 33 21.323 0.613 14.2 6.1489 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
30 minute summer MH-0003 33 21.753 0.553 19.9 8.4948 0.0000OK Hydro-Brake® MH-0002 2.0
30 minute summer MH-0004 34 21.757 0.257 3.6 0.2902 0.0000SURCHARGED PN004 MH-0003 2.9 0.229 0.040 0.6301
30 minute summer MH-0005 34 22.372 0.572 23.1 13.0910 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
30 minute summer Node 3 18 20.655 0.105 12.3 0.1187 0.0000OK Swale 2 Node 2 12.4 0.630 0.251 0.7776
Flow+ v7.0 Design Report: 2 year 30 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 2 year 30 minute winter. 270 minute analysis at 1 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
30 minute winter Outlet 176 20.635 0.235 6.6 0.2661 0.0000OK Orifice 2.7 39.4
30 minute winter Node 2 176 20.636 0.150 13.9 6.5473 0.0000OK Swale 1 Outlet 6.6 0.350 0.163 2.9421
30 minute winter MH-0001 7 20.657 0.047 3.2 0.0532 0.0000OK PN001 Node 2 3.2 0.666 0.094 0.4829
30 minute winter MH-0002 32 21.343 0.633 13.0 7.1178 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
30 minute winter MH-0003 33 21.761 0.561 18.3 9.8850 0.0000OK Hydro-Brake® MH-0002 2.0
30 minute winter MH-0004 32 21.766 0.266 4.3 0.3009 0.0000SURCHARGED PN004 MH-0003 -3.5 0.229 -0.049 0.6301
30 minute winter MH-0005 33 22.382 0.582 20.9 14.8542 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
30 minute winter Node 3 18 20.649 0.099 11.1 0.1119 0.0000OK Swale 2 Node 2 11.2 0.580 0.228 0.8262
Flow+ v7.0 Design Report: 2 year 60 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 2 year 60 minute summer. 300 minute analysis at 1 minute timestep. Mass balance: 99.83%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
60 minute summer Outlet 191 20.644 0.244 3.8 0.2758 0.0000OK Orifice 2.7 43.9
60 minute summer Node 2 191 20.644 0.158 11.6 7.2023 0.0000OK Swale 1 Outlet 3.8 0.321 0.094 3.0850
60 minute summer MH-0001 23 20.656 0.046 3.2 0.0522 0.0000OK PN001 Node 2 3.2 0.613 0.094 0.5087
60 minute summer MH-0002 61 21.330 0.620 10.8 6.4744 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
60 minute summer MH-0003 61 21.758 0.558 14.2 9.2863 0.0000OK Hydro-Brake® MH-0002 2.0
60 minute summer MH-0004 61 21.758 0.258 2.7 0.2914 0.0000SURCHARGED PN004 MH-0003 -1.9 0.229 -0.027 0.6301
60 minute summer MH-0005 63 22.383 0.583 16.8 15.0112 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
60 minute summer Node 3 191 20.644 0.094 8.9 0.1069 0.0000OK Swale 2 Node 2 8.9 0.456 0.181 0.9042
Flow+ v7.0 Design Report: 2 year 60 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 2 year 60 minute winter. 300 minute analysis at 1 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
60 minute winter Outlet 63 20.652 0.252 4.1 0.2847 0.0000OK Orifice 2.8 45.5
60 minute winter Node 2 64 20.652 0.166 9.8 7.8352 0.0000OK Swale 1 Outlet 4.1 0.325 0.100 3.2143
60 minute winter MH-0001 20 20.656 0.046 3.2 0.0522 0.0000OK PN001 Node 2 3.2 0.623 0.094 0.5275
60 minute winter MH-0002 60 21.354 0.644 9.1 7.6178 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
60 minute winter MH-0003 60 21.768 0.568 12.0 10.9507 0.0000OK Hydro-Brake® MH-0002 2.0
60 minute winter MH-0004 58 21.773 0.273 2.7 0.3087 0.0000SURCHARGED PN004 MH-0003 -1.9 0.229 -0.027 0.6301
60 minute winter MH-0005 62 22.395 0.595 13.6 17.2726 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
60 minute winter Node 3 68 20.653 0.103 7.2 0.1164 0.0000OK Swale 2 Node 2 7.2 0.387 0.146 0.9789
Flow+ v7.0 Design Report: 2 year 120 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 2 year 120 minute summer. 360 minute analysis at 2 minute timestep. Mass balance: 99.92%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
120 minute summer Outlet 124 20.661 0.261 3.1 0.2948 0.0000OK Orifice 2.8 53.1
120 minute summer Node 2 124 20.661 0.175 8.2 8.5712 0.0000OK Swale 1 Outlet 3.1 0.297 0.077 3.3552
120 minute summer MH-0001 124 20.662 0.052 3.2 0.0593 0.0000OK PN001 Node 2 3.2 0.560 0.094 0.5746
120 minute summer MH-0002 98 21.323 0.613 7.6 6.1105 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
120 minute summer MH-0003 94 21.754 0.554 9.2 8.7905 0.0000OK Hydro-Brake® MH-0002 2.0
120 minute summer MH-0004 98 21.759 0.259 1.3 0.2929 0.0000SURCHARGED PN004 MH-0003 2.1 0.229 0.029 0.6301
120 minute summer MH-0005 122 22.387 0.587 10.7 15.7711 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
120 minute summer Node 3 124 20.661 0.111 5.7 0.1256 0.0000OK Swale 2 Node 2 5.5 0.319 0.111 1.0591
Flow+ v7.0 Design Report: 2 year 120 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 2 year 120 minute winter. 360 minute analysis at 2 minute timestep. Mass balance: 99.95%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
120 minute winter Outlet 122 20.673 0.273 3.1 0.3083 0.0000OK Orifice 2.9 55.3
120 minute winter Node 2 122 20.673 0.187 6.9 9.5859 0.0000OK Swale 1 Outlet 3.1 0.293 0.076 3.5334
120 minute winter MH-0001 122 20.674 0.064 3.2 0.0724 0.0000OK PN001 Node 2 3.2 0.558 0.094 0.6374
120 minute winter MH-0002 112 21.345 0.635 6.3 7.1854 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
120 minute winter MH-0003 112 21.766 0.566 7.9 10.5925 0.0000OK Hydro-Brake® MH-0002 2.0
120 minute winter MH-0004 98 21.771 0.271 1.8 0.3062 0.0000SURCHARGED PN004 MH-0003 1.8 0.229 0.026 0.6301
120 minute winter MH-0005 118 22.402 0.602 8.3 18.5876 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
120 minute winter Node 3 122 20.673 0.123 4.4 0.1390 0.0000OK Swale 2 Node 2 4.2 0.293 0.085 1.1698
Flow+ v7.0 Design Report: 2 year 180 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 2 year 180 minute summer. 420 minute analysis at 4 minute timestep. Mass balance: 99.90%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
180 minute summer Outlet 184 20.667 0.267 3.0 0.3021 0.0000OK Orifice 2.9 61.0
180 minute summer Node 2 184 20.668 0.182 6.8 9.1122 0.0000OK Swale 1 Outlet 3.0 0.254 0.074 3.4529
180 minute summer MH-0001 184 20.669 0.059 3.2 0.0663 0.0000OK PN001 Node 2 3.2 0.498 0.093 0.6084
180 minute summer MH-0002 132 21.314 0.604 6.1 5.7136 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
180 minute summer MH-0003 128 21.751 0.551 7.4 8.2568 0.0000OK Hydro-Brake® MH-0002 2.0
180 minute summer MH-0004 140 21.756 0.256 1.2 0.2891 0.0000SURCHARGED PN004 MH-0003 1.6 0.229 0.022 0.6301
180 minute summer MH-0005 172 22.384 0.584 7.9 15.3591 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
180 minute summer Node 3 184 20.667 0.117 4.2 0.1328 0.0000OK Swale 2 Node 2 4.0 0.306 0.081 1.1189
Flow+ v7.0 Design Report: 2 year 180 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 2 year 180 minute winter. 420 minute analysis at 4 minute timestep. Mass balance: 99.95%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
180 minute winter Outlet 180 20.681 0.281 3.0 0.3173 0.0000OK Orifice 3.0 63.7
180 minute winter Node 2 180 20.681 0.195 5.8 10.2914 0.0000OK Swale 1 Outlet 3.0 0.279 0.073 3.6446
180 minute winter MH-0001 180 20.682 0.072 3.2 0.0813 0.0000OK PN001 Node 2 3.2 0.479 0.094 0.6790
180 minute winter MH-0002 140 21.331 0.621 5.1 6.5103 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
180 minute winter MH-0003 140 21.760 0.560 5.6 9.7553 0.0000OK Hydro-Brake® MH-0002 2.0
180 minute winter MH-0004 140 21.761 0.261 1.1 0.2947 0.0000SURCHARGED PN004 MH-0003 1.4 0.229 0.020 0.6301
180 minute winter MH-0005 176 22.401 0.601 6.1 18.4555 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
180 minute winter Node 3 180 20.681 0.131 3.2 0.1480 0.0000OK Swale 2 Node 2 3.0 0.266 0.062 1.2442
Flow+ v7.0 Design Report: 2 year 240 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 2 year 240 minute summer. 480 minute analysis at 4 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
240 minute summer Outlet 244 20.667 0.267 2.9 0.3022 0.0000OK Orifice 2.9 67.2
240 minute summer Node 2 244 20.668 0.182 6.1 9.1276 0.0000OK Swale 1 Outlet 2.9 0.267 0.072 3.4555
240 minute summer MH-0001 244 20.669 0.059 3.2 0.0665 0.0000OK PN001 Node 2 3.2 0.483 0.093 0.6093
240 minute summer MH-0002 168 21.303 0.593 5.4 5.1808 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
240 minute summer MH-0003 164 21.748 0.548 6.3 7.7488 0.0000OK Hydro-Brake® MH-0002 2.0
240 minute summer MH-0004 168 21.753 0.253 1.1 0.2862 0.0000SURCHARGED PN004 MH-0003 1.6 0.229 0.023 0.6301
240 minute summer MH-0005 200 22.382 0.582 6.6 14.9303 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
240 minute summer Node 3 240 20.668 0.118 3.5 0.1331 0.0000OK Swale 2 Node 2 3.3 0.290 0.068 1.1210
Flow+ v7.0 Design Report: 2 year 240 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 2 year 240 minute winter. 480 minute analysis at 4 minute timestep. Mass balance: 99.94%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
240 minute winter Outlet 236 20.684 0.284 3.0 0.3216 0.0000OK Orifice 3.0 71.7
240 minute winter Node 2 236 20.685 0.199 5.3 10.6321 0.0000OK Swale 1 Outlet 3.0 0.258 0.073 3.6952
240 minute winter MH-0001 236 20.686 0.076 3.2 0.0854 0.0000OK PN001 Node 2 3.2 0.463 0.094 0.6983
240 minute winter MH-0002 180 21.317 0.607 4.5 5.8504 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
240 minute winter MH-0003 180 21.756 0.556 4.7 8.9664 0.0000OK Hydro-Brake® MH-0002 2.0
240 minute winter MH-0004 180 21.756 0.256 1.0 0.2891 0.0000SURCHARGED PN004 MH-0003 1.4 0.229 0.020 0.6301
240 minute winter MH-0005 228 22.397 0.597 4.9 17.7810 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
240 minute winter Node 3 236 20.685 0.135 2.6 0.1524 0.0000OK Swale 2 Node 2 2.5 0.210 0.050 1.2796
Flow+ v7.0 Design Report: 2 year 360 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 2 year 360 minute summer. 600 minute analysis at 8 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
360 minute summer Outlet 360 20.676 0.276 2.9 0.3116 0.0000OK Orifice 2.9 76.3
360 minute summer Node 2 360 20.676 0.190 5.3 9.8462 0.0000OK Swale 1 Outlet 2.9 0.232 0.072 3.5758
360 minute summer MH-0001 360 20.677 0.067 3.2 0.0754 0.0000OK PN001 Node 2 3.2 0.431 0.093 0.6523
360 minute summer MH-0002 240 21.281 0.571 4.5 4.0980 0.0000SURCHARGED Hydro-Brake® MH-0001 3.2
360 minute summer MH-0003 232 21.741 0.541 4.7 6.6096 0.0000OK Hydro-Brake® MH-0002 2.0
360 minute summer MH-0004 232 21.741 0.241 0.9 0.2724 0.0000SURCHARGED PN004 MH-0003 1.4 0.229 0.020 0.6301
360 minute summer MH-0005 264 22.377 0.577 5.0 13.9218 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
360 minute summer Node 3 360 20.676 0.126 2.6 0.1425 0.0000OK Swale 2 Node 2 2.5 0.174 0.050 1.1980
Flow+ v7.0 Design Report: 2 year 360 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 2 year 360 minute winter. 600 minute analysis at 8 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
360 minute winter Outlet 368 20.688 0.288 3.0 0.3259 0.0000OK Orifice 3.0 82.9
360 minute winter Node 2 368 20.689 0.203 4.8 10.9855 0.0000OK Swale 1 Outlet 3.0 0.214 0.074 3.7435
360 minute winter MH-0001 368 20.690 0.080 3.2 0.0900 0.0000OK PN001 Node 2 3.2 0.385 0.094 0.7185
360 minute winter MH-0002 256 21.278 0.568 3.8 3.9498 0.0000SURCHARGED Hydro-Brake® MH-0001 3.2
360 minute winter MH-0003 256 21.746 0.546 3.6 7.4673 0.0000OK Hydro-Brake® MH-0002 2.0
360 minute winter MH-0004 256 21.746 0.246 0.8 0.2785 0.0000SURCHARGED PN004 MH-0003 1.3 0.229 0.018 0.6301
360 minute winter MH-0005 280 22.391 0.591 3.6 16.5396 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
360 minute winter Node 3 368 20.689 0.139 1.9 0.1568 0.0000OK Swale 2 Node 2 1.8 0.180 0.037 1.3155
Flow+ v7.0 Design Report: 2 year 480 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 2 year 480 minute summer. 720 minute analysis at 8 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
480 minute summer Outlet 384 20.679 0.279 3.0 0.3160 0.0000OK Orifice 2.9 83.9
480 minute summer Node 2 384 20.680 0.194 4.9 10.1884 0.0000OK Swale 1 Outlet 3.0 0.222 0.073 3.6292
480 minute summer MH-0001 384 20.681 0.071 3.2 0.0797 0.0000OK PN001 Node 2 3.2 0.413 0.094 0.6725
480 minute summer MH-0002 296 21.259 0.549 4.0 3.0084 0.0000SURCHARGED Hydro-Brake® MH-0001 3.2
480 minute summer MH-0003 296 21.734 0.534 4.0 5.4845 0.0000OK Hydro-Brake® MH-0002 2.0
480 minute summer MH-0004 296 21.734 0.234 0.8 0.2644 0.0000SURCHARGED PN004 MH-0003 1.2 0.240 0.017 0.6301
480 minute summer MH-0005 328 22.373 0.573 3.9 13.2845 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
480 minute summer Node 3 384 20.680 0.130 2.1 0.1469 0.0000OK Swale 2 Node 2 2.0 0.182 0.040 1.2341
Flow+ v7.0 Design Report: 2 year 480 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 2 year 480 minute winter. 720 minute analysis at 8 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
480 minute winter Outlet 352 20.700 0.300 3.1 0.3390 0.0000OK Orifice 3.1 91.8
480 minute winter Node 2 352 20.700 0.214 4.6 12.0660 0.0000OK Swale 1 Outlet 3.1 0.233 0.076 3.8691
480 minute winter MH-0001 352 20.701 0.091 3.2 0.1027 0.0000OK PN001 Node 2 3.2 0.385 0.094 0.7729
480 minute winter MH-0002 304 21.223 0.513 3.4 1.2993 0.0000SURCHARGED Hydro-Brake® MH-0001 3.2
480 minute winter MH-0003 320 21.736 0.536 3.1 5.7965 0.0000OK Hydro-Brake® MH-0002 2.0
480 minute winter MH-0004 320 21.736 0.236 0.8 0.2666 0.0000SURCHARGED PN004 MH-0003 1.5 0.229 0.021 0.6301
480 minute winter MH-0005 360 22.384 0.584 2.9 15.2912 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
480 minute winter Node 3 352 20.700 0.150 1.5 0.1698 0.0000OK Swale 2 Node 2 1.4 0.125 0.029 1.4212
Flow+ v7.0 Design Report: 2 year 600 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 2 year 600 minute summer. 840 minute analysis at 15 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
600 minute summer Outlet 420 20.679 0.279 3.0 0.3151 0.0000OK Orifice 2.9 88.9
600 minute summer Node 2 420 20.679 0.193 4.7 10.1127 0.0000OK Swale 1 Outlet 3.0 0.182 0.073 3.6180
600 minute summer MH-0001 420 20.680 0.070 3.2 0.0789 0.0000OK PN001 Node 2 3.2 0.382 0.093 0.6683
600 minute summer MH-0002 360 21.236 0.526 3.6 1.9297 0.0000SURCHARGED Hydro-Brake® MH-0001 3.2
600 minute summer MH-0003 375 21.727 0.527 3.6 4.4314 0.0000OK Hydro-Brake® MH-0002 2.0
600 minute summer MH-0004 375 21.727 0.227 0.8 0.2570 0.0000SURCHARGED PN004 MH-0003 1.2 0.229 0.017 0.6300
600 minute summer MH-0005 405 22.369 0.569 3.2 12.4624 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
600 minute summer Node 3 420 20.679 0.129 1.7 0.1458 0.0000OK Swale 2 Node 2 1.6 0.113 0.033 1.2258
Flow+ v7.0 Design Report: 2 year 600 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 2 year 600 minute winter. 840 minute analysis at 15 minute timestep. Mass balance: 99.97%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
600 minute winter Outlet 405 20.690 0.290 3.0 0.3279 0.0000OK Orifice 3.0 97.5
600 minute winter Node 2 405 20.690 0.204 4.4 11.1462 0.0000OK Swale 1 Outlet 3.0 0.184 0.074 3.7654
600 minute winter MH-0001 405 20.691 0.081 3.1 0.0916 0.0000OK PN001 Node 2 3.1 0.376 0.092 0.7260
600 minute winter MH-0002 315 20.905 0.195 3.2 0.3442 0.0000OK Hydro-Brake® MH-0001 3.1
600 minute winter MH-0003 390 21.725 0.525 2.7 4.1157 0.0000OK Hydro-Brake® MH-0002 2.0
600 minute winter MH-0004 390 21.725 0.225 0.8 0.2547 0.0000SURCHARGED PN004 MH-0003 1.2 0.229 0.017 0.6299
600 minute winter MH-0005 435 22.378 0.578 2.4 14.0963 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
600 minute winter Node 3 405 20.690 0.140 1.3 0.1588 0.0000OK Swale 2 Node 2 1.2 0.105 0.025 1.3316
Flow+ v7.0 Design Report: 2 year 720 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 2 year 720 minute summer. 960 minute analysis at 15 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
720 minute summer Outlet 450 20.671 0.271 2.9 0.3066 0.0000OK Orifice 2.9 91.7
720 minute summer Node 2 450 20.672 0.186 4.6 9.4585 0.0000OK Swale 1 Outlet 2.9 0.165 0.072 3.5125
720 minute summer MH-0001 450 20.672 0.062 3.2 0.0704 0.0000OK PN001 Node 2 3.2 0.374 0.094 0.6289
720 minute summer MH-0002 390 21.057 0.347 3.4 0.6130 0.0000SURCHARGED Hydro-Brake® MH-0001 3.2
720 minute summer MH-0003 435 21.722 0.522 2.9 3.6670 0.0000OK Hydro-Brake® MH-0002 2.0
720 minute summer MH-0004 435 21.722 0.222 0.8 0.2515 0.0000OK PN004 MH-0003 1.2 0.240 0.017 0.6293
720 minute summer MH-0005 465 22.364 0.564 2.8 11.4935 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
720 minute summer Node 3 450 20.672 0.122 1.5 0.1374 0.0000OK Swale 2 Node 2 1.4 0.107 0.028 1.1566
Flow+ v7.0 Design Report: 2 year 720 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 2 year 720 minute winter. 960 minute analysis at 15 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
720 minute winter Outlet 480 20.683 0.283 3.0 0.3204 0.0000OK Orifice 3.0 104.3
720 minute winter Node 2 480 20.684 0.198 4.1 10.5421 0.0000OK Swale 1 Outlet 3.0 0.194 0.073 3.6822
720 minute winter MH-0001 480 20.684 0.074 3.1 0.0842 0.0000OK PN001 Node 2 3.1 0.367 0.090 0.6928
720 minute winter MH-0002 360 20.869 0.159 3.1 0.2806 0.0000OK Hydro-Brake® MH-0001 3.1
720 minute winter MH-0003 450 21.716 0.516 2.4 2.6966 0.0000OK Hydro-Brake® MH-0002 2.0
720 minute winter MH-0004 450 21.716 0.216 0.8 0.2447 0.0000OK PN004 MH-0003 1.2 0.239 0.017 0.6259
720 minute winter MH-0005 510 22.371 0.571 2.1 12.9086 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
720 minute winter Node 3 480 20.684 0.134 1.1 0.1513 0.0000OK Swale 2 Node 2 1.0 0.106 0.021 1.2705
Flow+ v7.0 Design Report: 2 year 960 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 2 year 960 minute summer. 1200 minute analysis at 15 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
960 minute summer Outlet 585 20.664 0.264 2.9 0.2991 0.0000OK Orifice 2.9 98.2
960 minute summer Node 2 585 20.665 0.179 4.2 8.8886 0.0000OK Swale 1 Outlet 2.9 0.161 0.070 3.4135
960 minute summer MH-0001 585 20.666 0.056 3.1 0.0631 0.0000OK PN001 Node 2 3.1 0.374 0.092 0.5937
960 minute summer MH-0002 495 20.895 0.185 3.2 0.3274 0.0000OK Hydro-Brake® MH-0001 3.1
960 minute summer MH-0003 555 21.712 0.512 2.4 1.9428 0.0000OK Hydro-Brake® MH-0002 2.0
960 minute summer MH-0004 555 21.712 0.212 0.8 0.2393 0.0000OK PN004 MH-0003 1.2 0.226 0.017 0.6223
960 minute summer MH-0005 600 22.356 0.556 2.3 10.1478 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
960 minute summer Node 3 585 20.665 0.115 1.2 0.1299 0.0000OK Swale 2 Node 2 1.1 0.104 0.023 1.0948
Flow+ v7.0 Design Report: 2 year 960 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 2 year 960 minute winter. 1200 minute analysis at 15 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
960 minute winter Outlet 600 20.671 0.271 2.9 0.3063 0.0000OK Orifice 2.9 110.3
960 minute winter Node 2 600 20.671 0.185 3.7 9.4356 0.0000OK Swale 1 Outlet 2.9 0.178 0.071 3.5087
960 minute winter MH-0001 600 20.672 0.062 2.9 0.0702 0.0000OK PN001 Node 2 2.9 0.366 0.085 0.6277
960 minute winter MH-0002 510 20.831 0.121 2.9 0.2137 0.0000OK Hydro-Brake® MH-0001 2.9
960 minute winter MH-0003 540 21.521 0.321 2.1 0.5680 0.0000OK Hydro-Brake® MH-0002 2.0
960 minute winter MH-0004 540 21.522 0.022 0.8 0.0244 0.0000OK PN004 MH-0003 0.8 0.228 0.011 0.3303
960 minute winter MH-0005 645 22.357 0.557 1.7 10.3391 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
960 minute winter Node 3 600 20.671 0.121 0.9 0.1372 0.0000OK Swale 2 Node 2 0.8 0.143 0.017 1.1544
Flow+ v7.0 Design Report: 2 year 1440 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 2 year 1440 minute summer. 1680 minute analysis at 30 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
1440 minute summer Outlet 840 20.645 0.245 2.8 0.2774 0.0000OK Orifice 2.7 108.9
1440 minute summer Node 2 840 20.646 0.160 3.7 7.3234 0.0000OK Swale 1 Outlet 2.8 0.162 0.068 3.1097
1440 minute summer MH-0001 750 20.654 0.044 2.9 0.0496 0.0000OK PN001 Node 2 2.9 0.369 0.084 0.4980
1440 minute summer MH-0002 750 20.828 0.118 2.9 0.2079 0.0000OK Hydro-Brake® MH-0001 2.9
1440 minute summer MH-0003 750 21.441 0.241 2.1 0.4260 0.0000OK Hydro-Brake® MH-0002 2.0
1440 minute summer MH-0004 630 21.517 0.017 0.8 0.0192 0.0000OK PN004 MH-0003 0.8 0.191 0.011 0.3252
1440 minute summer MH-0005 870 22.341 0.541 1.6 7.2038 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
1440 minute summer Node 3 840 20.646 0.096 0.9 0.1084 0.0000OK Swale 2 Node 2 0.8 0.099 0.017 0.9174
Flow+ v7.0 Design Report: 2 year 1440 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 2 year 1440 minute winter. 1680 minute analysis at 30 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
1440 minute winter Outlet 840 20.624 0.224 2.6 0.2533 0.0000OK Orifice 2.6 119.4
1440 minute winter Node 2 840 20.625 0.139 3.1 5.7148 0.0000OK Swale 1 Outlet 2.6 0.161 0.064 2.7488
1440 minute winter MH-0001 750 20.651 0.041 2.4 0.0459 0.0000OK PN001 Node 2 2.4 0.364 0.072 0.4290
1440 minute winter MH-0002 750 20.803 0.093 2.4 0.1637 0.0000OK Hydro-Brake® MH-0001 2.4
1440 minute winter MH-0003 750 21.319 0.119 1.8 0.2102 0.0000OK Hydro-Brake® MH-0002 1.7
1440 minute winter MH-0004 600 21.517 0.017 0.8 0.0192 0.0000OK PN004 MH-0003 0.8 0.191 0.011 0.1788
1440 minute winter MH-0005 900 22.334 0.534 1.2 5.9640 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
1440 minute winter Node 3 840 20.625 0.075 0.7 0.0844 0.0000OK Swale 2 Node 2 0.7 0.100 0.014 0.7252
Flow+ v7.0 Design Report: 5 year 15 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 5 year 15 minute summer. 255 minute analysis at 1 minute timestep. Mass balance: 99.88%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
15 minute summer Outlet 160 20.628 0.228 10.4 0.2580 0.0000OK Orifice 2.6 36.6
15 minute summer Node 2 159 20.629 0.143 20.4 6.0103 0.0000OK Swale 1 Outlet 10.4 0.430 0.254 2.8194
15 minute summer MH-0001 5 20.658 0.048 3.2 0.0548 0.0000OK PN001 Node 2 3.3 0.690 0.096 0.4606
15 minute summer MH-0002 19 21.340 0.630 20.1 6.9655 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
15 minute summer MH-0003 19 21.759 0.559 28.5 9.5659 0.0000OK Hydro-Brake® MH-0002 2.0
15 minute summer MH-0004 18 21.764 0.264 5.1 0.2986 0.0000SURCHARGED PN004 MH-0003 -4.4 0.229 -0.061 0.6301
15 minute summer MH-0005 19 22.377 0.577 34.3 13.9564 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
15 minute summer Node 3 11 20.675 0.125 18.2 0.1415 0.0000OK Swale 2 Node 2 17.6 0.821 0.358 0.7688
Flow+ v7.0 Design Report: 5 year 15 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 5 year 15 minute winter. 255 minute analysis at 1 minute timestep. Mass balance: 98.56%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
15 minute winter Outlet 179 20.634 0.234 10.6 0.2643 0.0000OK Orifice 2.7 38.0
15 minute winter Node 2 179 20.634 0.148 21.2 6.4278 0.0000OK Swale 1 Outlet 10.6 0.425 0.260 2.9155
15 minute winter MH-0001 5 20.659 0.049 3.2 0.0551 0.0000OK PN001 Node 2 3.3 0.695 0.096 0.4780
15 minute winter MH-0002 19 21.360 0.650 21.0 7.9068 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
15 minute winter MH-0003 19 21.768 0.568 29.9 10.9513 0.0000OK Hydro-Brake® MH-0002 2.0
15 minute winter MH-0004 21 21.773 0.273 7.9 0.3082 0.0000SURCHARGED PN004 MH-0003 -7.2 -0.249 -0.100 0.6301
15 minute winter MH-0005 19 22.390 0.590 36.0 16.4755 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
15 minute winter Node 3 10 20.678 0.128 19.1 0.1453 0.0000OK Swale 2 Node 2 18.6 0.795 0.377 0.8125
Flow+ v7.0 Design Report: 5 year 30 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 5 year 30 minute summer. 270 minute analysis at 1 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
30 minute summer Outlet 201 20.643 0.243 6.5 0.2743 0.0000OK Orifice 2.7 41.1
30 minute summer Node 2 200 20.643 0.157 18.4 7.1027 0.0000OK Swale 1 Outlet 6.5 0.351 0.160 3.0634
30 minute summer MH-0001 6 20.657 0.047 3.2 0.0533 0.0000OK PN001 Node 2 3.2 0.674 0.095 0.5049
30 minute summer MH-0002 33 21.367 0.657 17.6 8.2758 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
30 minute summer MH-0003 33 21.773 0.573 24.7 11.6854 0.0000OK Hydro-Brake® MH-0002 2.0
30 minute summer MH-0004 32 21.773 0.273 2.5 0.3091 0.0000SURCHARGED PN004 MH-0003 2.6 0.229 0.036 0.6301
30 minute summer MH-0005 34 22.394 0.594 29.7 17.1712 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
30 minute summer Node 3 18 20.669 0.119 15.7 0.1349 0.0000OK Swale 2 Node 2 15.7 0.685 0.320 0.8923
Flow+ v7.0 Design Report: 5 year 30 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 5 year 30 minute winter. 270 minute analysis at 1 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
30 minute winter Outlet 38 20.651 0.251 7.0 0.2840 0.0000OK Orifice 2.8 42.4
30 minute winter Node 2 60 20.651 0.165 16.9 7.7199 0.0000OK Swale 1 Outlet 7.0 0.361 0.171 3.1942
30 minute winter MH-0001 7 20.658 0.048 3.2 0.0538 0.0000OK PN001 Node 2 3.2 0.678 0.095 0.5218
30 minute winter MH-0002 32 21.393 0.683 16.1 9.5295 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
30 minute winter MH-0003 33 21.784 0.584 23.2 13.5213 0.0000OK Hydro-Brake® MH-0002 2.0
30 minute winter MH-0004 33 21.784 0.284 3.4 0.3216 0.0000SURCHARGED PN004 MH-0003 -2.6 0.229 -0.037 0.6301
30 minute winter MH-0005 33 22.407 0.607 26.8 19.4646 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
30 minute winter Node 3 18 20.663 0.113 14.2 0.1275 0.0000OK Swale 2 Node 2 14.3 0.632 0.290 0.9637
Flow+ v7.0 Design Report: 5 year 60 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 5 year 60 minute summer. 300 minute analysis at 1 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
60 minute summer Outlet 64 20.664 0.264 4.0 0.2990 0.0000OK Orifice 2.9 47.3
60 minute summer Node 2 65 20.665 0.179 14.1 8.8773 0.0000OK Swale 1 Outlet 4.0 0.326 0.098 3.4120
60 minute summer MH-0001 65 20.666 0.056 3.2 0.0634 0.0000OK PN001 Node 2 3.2 0.636 0.094 0.5941
60 minute summer MH-0002 61 21.379 0.669 13.3 8.8515 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
60 minute summer MH-0003 62 21.780 0.580 18.4 12.9506 0.0000OK Hydro-Brake® MH-0002 2.0
60 minute summer MH-0004 62 21.781 0.281 2.0 0.3173 0.0000SURCHARGED PN004 MH-0003 2.1 0.229 0.030 0.6301
60 minute summer MH-0005 63 22.408 0.608 21.4 19.8211 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
60 minute summer Node 3 69 20.665 0.115 11.4 0.1299 0.0000OK Swale 2 Node 2 11.4 0.492 0.232 1.0937
Flow+ v7.0 Design Report: 5 year 60 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 5 year 60 minute winter. 300 minute analysis at 1 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
60 minute winter Outlet 63 20.675 0.275 4.4 0.3106 0.0000OK Orifice 2.9 48.4
60 minute winter Node 2 65 20.675 0.189 11.7 9.7666 0.0000OK Swale 1 Outlet 4.4 0.334 0.107 3.5629
60 minute winter MH-0001 64 20.676 0.066 3.2 0.0748 0.0000OK PN001 Node 2 3.2 0.646 0.094 0.6486
60 minute winter MH-0002 60 21.410 0.700 11.1 10.3367 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
60 minute winter MH-0003 61 21.794 0.594 15.0 15.1693 0.0000OK Hydro-Brake® MH-0002 2.0
60 minute winter MH-0004 62 21.799 0.299 2.1 0.3386 0.0000SURCHARGED PN004 MH-0003 1.9 0.209 0.027 0.6301
60 minute winter MH-0005 62 22.423 0.623 17.3 22.6068 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
60 minute winter Node 3 66 20.675 0.125 9.2 0.1417 0.0000OK Swale 2 Node 2 9.1 0.423 0.185 1.1901
Flow+ v7.0 Design Report: 5 year 120 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 5 year 120 minute summer. 360 minute analysis at 2 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
120 minute summer Outlet 124 20.685 0.285 3.3 0.3226 0.0000OK Orifice 3.0 57.4
120 minute summer Node 2 124 20.686 0.200 9.5 10.7129 0.0000OK Swale 1 Outlet 3.3 0.298 0.081 3.7064
120 minute summer MH-0001 124 20.687 0.077 3.2 0.0866 0.0000OK PN001 Node 2 3.2 0.587 0.094 0.7032
120 minute summer MH-0002 104 21.371 0.661 9.1 8.4590 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
120 minute summer MH-0003 106 21.778 0.578 11.1 12.5848 0.0000OK Hydro-Brake® MH-0002 2.0
120 minute summer MH-0004 108 21.783 0.283 1.4 0.3202 0.0000SURCHARGED PN004 MH-0003 1.7 0.229 0.023 0.6301
120 minute summer MH-0005 122 22.416 0.616 13.5 21.2157 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
120 minute summer Node 3 124 20.686 0.136 7.2 0.1533 0.0000OK Swale 2 Node 2 6.9 0.348 0.140 1.2874
Flow+ v7.0 Design Report: 5 year 120 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 5 year 120 minute winter. 360 minute analysis at 2 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
120 minute winter Outlet 122 20.698 0.298 3.4 0.3375 0.0000OK Orifice 3.1 58.9
120 minute winter Node 2 122 20.699 0.213 7.9 11.9385 0.0000OK Swale 1 Outlet 3.4 0.314 0.082 3.8572
120 minute winter MH-0001 122 20.700 0.090 3.2 0.1014 0.0000OK PN001 Node 2 3.2 0.573 0.094 0.7673
120 minute winter MH-0002 114 21.403 0.693 7.4 9.9868 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
120 minute winter MH-0003 116 21.795 0.595 9.7 15.2757 0.0000OK Hydro-Brake® MH-0002 2.0
120 minute winter MH-0004 112 21.800 0.300 1.5 0.3391 0.0000SURCHARGED PN004 MH-0003 1.7 0.214 0.024 0.6301
120 minute winter MH-0005 120 22.434 0.634 10.4 24.6179 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
120 minute winter Node 3 122 20.699 0.149 5.5 0.1682 0.0000OK Swale 2 Node 2 5.2 0.307 0.107 1.4086
Flow+ v7.0 Design Report: 5 year 180 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 5 year 180 minute summer. 420 minute analysis at 4 minute timestep. Mass balance: 99.96%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
180 minute summer Outlet 184 20.692 0.292 3.2 0.3299 0.0000OK Orifice 3.0 66.2
180 minute summer Node 2 184 20.692 0.206 7.7 11.3027 0.0000OK Swale 1 Outlet 3.2 0.272 0.077 3.7850
180 minute summer MH-0001 184 20.693 0.083 3.2 0.0937 0.0000OK PN001 Node 2 3.2 0.508 0.093 0.7349
180 minute summer MH-0002 136 21.360 0.650 7.2 7.9130 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
180 minute summer MH-0003 140 21.774 0.574 9.0 11.9432 0.0000OK Hydro-Brake® MH-0002 2.0
180 minute summer MH-0004 144 21.779 0.279 1.3 0.3152 0.0000SURCHARGED PN004 MH-0003 1.6 0.229 0.023 0.6301
180 minute summer MH-0005 180 22.415 0.615 9.9 21.1260 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
180 minute summer Node 3 184 20.692 0.142 5.3 0.1606 0.0000OK Swale 2 Node 2 5.1 0.320 0.103 1.3469
Flow+ v7.0 Design Report: 5 year 180 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 5 year 180 minute winter. 420 minute analysis at 4 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
180 minute winter Outlet 180 20.708 0.308 3.1 0.3480 0.0000OK Orifice 3.1 68.4
180 minute winter Node 2 180 20.708 0.222 6.4 12.8357 0.0000OK Swale 1 Outlet 3.1 0.296 0.076 3.9370
180 minute winter MH-0001 180 20.709 0.099 3.2 0.1118 0.0000OK PN001 Node 2 3.2 0.514 0.094 0.8071
180 minute winter MH-0002 144 21.389 0.679 5.9 9.3164 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
180 minute winter MH-0003 152 21.789 0.589 6.9 14.2992 0.0000OK Hydro-Brake® MH-0002 2.0
180 minute winter MH-0004 152 21.789 0.289 1.0 0.3268 0.0000SURCHARGED PN004 MH-0003 1.4 0.229 0.020 0.6301
180 minute winter MH-0005 176 22.436 0.636 7.6 25.0073 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
180 minute winter Node 3 180 20.708 0.158 4.0 0.1788 0.0000OK Swale 2 Node 2 3.8 0.291 0.077 1.4930
Flow+ v7.0 Design Report: 5 year 240 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 5 year 240 minute summer. 480 minute analysis at 4 minute timestep. Mass balance: 99.96%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
240 minute summer Outlet 240 20.695 0.295 3.1 0.3331 0.0000OK Orifice 3.0 74.8
240 minute summer Node 2 240 20.695 0.209 6.9 11.5734 0.0000OK Swale 1 Outlet 3.1 0.254 0.076 3.8173
240 minute summer MH-0001 240 20.696 0.086 3.2 0.0969 0.0000OK PN001 Node 2 3.2 0.498 0.094 0.7488
240 minute summer MH-0002 172 21.352 0.642 6.3 7.5254 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
240 minute summer MH-0003 172 21.770 0.570 7.6 11.3106 0.0000OK Hydro-Brake® MH-0002 2.0
240 minute summer MH-0004 176 21.775 0.275 0.9 0.3115 0.0000SURCHARGED PN004 MH-0003 1.6 0.229 0.023 0.6301
240 minute summer MH-0005 216 22.411 0.611 8.3 20.3095 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
240 minute summer Node 3 240 20.695 0.145 4.4 0.1639 0.0000OK Swale 2 Node 2 4.2 0.306 0.085 1.3737
Flow+ v7.0 Design Report: 5 year 240 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 5 year 240 minute winter. 480 minute analysis at 4 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
240 minute winter Outlet 232 20.712 0.312 3.1 0.3524 0.0000OK Orifice 3.1 77.5
240 minute winter Node 2 232 20.712 0.226 5.7 13.2168 0.0000OK Swale 1 Outlet 3.1 0.260 0.077 3.9685
240 minute winter MH-0001 232 20.713 0.103 3.2 0.1161 0.0000OK PN001 Node 2 3.2 0.464 0.094 0.8208
240 minute winter MH-0002 184 21.376 0.666 5.2 8.6853 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
240 minute winter MH-0003 188 21.783 0.583 5.7 13.3367 0.0000OK Hydro-Brake® MH-0002 2.0
240 minute winter MH-0004 188 21.783 0.283 1.1 0.3200 0.0000SURCHARGED PN004 MH-0003 1.6 0.230 0.022 0.6301
240 minute winter MH-0005 232 22.434 0.634 6.2 24.6204 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
240 minute winter Node 3 232 20.712 0.162 3.3 0.1832 0.0000OK Swale 2 Node 2 3.1 0.199 0.064 1.5277
Flow+ v7.0 Design Report: 5 year 360 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 5 year 360 minute summer. 600 minute analysis at 8 minute timestep. Mass balance: 99.95%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
360 minute summer Outlet 304 20.691 0.291 3.0 0.3288 0.0000OK Orifice 3.0 88.4
360 minute summer Node 2 304 20.691 0.205 5.9 11.2188 0.0000OK Swale 1 Outlet 3.0 0.253 0.074 3.7748
360 minute summer MH-0001 304 20.692 0.082 3.2 0.0926 0.0000OK PN001 Node 2 3.2 0.450 0.093 0.7303
360 minute summer MH-0002 240 21.329 0.619 5.2 6.3969 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
360 minute summer MH-0003 240 21.763 0.563 5.6 10.1036 0.0000OK Hydro-Brake® MH-0002 2.0
360 minute summer MH-0004 240 21.763 0.263 1.1 0.2971 0.0000SURCHARGED PN004 MH-0003 1.3 0.229 0.019 0.6301
360 minute summer MH-0005 280 22.406 0.606 6.2 19.3511 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
360 minute summer Node 3 304 20.691 0.141 3.3 0.1596 0.0000OK Swale 2 Node 2 3.1 0.173 0.064 1.3388
Flow+ v7.0 Design Report: 5 year 360 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 5 year 360 minute winter. 600 minute analysis at 8 minute timestep. Mass balance: 99.95%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
360 minute winter Outlet 296 20.709 0.309 3.1 0.3491 0.0000OK Orifice 3.1 93.1
360 minute winter Node 2 296 20.709 0.223 5.0 12.9272 0.0000OK Swale 1 Outlet 3.1 0.232 0.077 3.9447
360 minute winter MH-0001 296 20.710 0.100 3.2 0.1128 0.0000OK PN001 Node 2 3.2 0.435 0.094 0.8108
360 minute winter MH-0002 264 21.340 0.630 4.3 6.9431 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
360 minute winter MH-0003 264 21.772 0.572 4.4 11.5771 0.0000OK Hydro-Brake® MH-0002 2.0
360 minute winter MH-0004 264 21.772 0.272 0.8 0.3076 0.0000SURCHARGED PN004 MH-0003 1.5 0.230 0.020 0.6301
360 minute winter MH-0005 296 22.425 0.625 4.5 22.8789 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
360 minute winter Node 3 296 20.709 0.159 2.4 0.1799 0.0000OK Swale 2 Node 2 2.3 0.178 0.047 1.5015
Flow+ v7.0 Design Report: 5 year 480 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 5 year 480 minute summer. 720 minute analysis at 8 minute timestep. Mass balance: 99.97%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
480 minute summer Outlet 360 20.689 0.289 3.0 0.3272 0.0000OK Orifice 3.0 97.8
480 minute summer Node 2 360 20.690 0.204 5.3 11.0881 0.0000OK Swale 1 Outlet 3.0 0.231 0.074 3.7576
480 minute summer MH-0001 360 20.690 0.080 3.2 0.0910 0.0000OK PN001 Node 2 3.2 0.431 0.094 0.7234
480 minute summer MH-0002 312 21.310 0.600 4.5 5.4934 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
480 minute summer MH-0003 304 21.754 0.554 4.5 8.7767 0.0000OK Hydro-Brake® MH-0002 2.0
480 minute summer MH-0004 304 21.754 0.254 0.8 0.2877 0.0000SURCHARGED PN004 MH-0003 1.5 0.229 0.021 0.6301
480 minute summer MH-0005 344 22.400 0.600 4.8 18.3357 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
480 minute summer Node 3 360 20.690 0.140 2.6 0.1581 0.0000OK Swale 2 Node 2 2.5 0.174 0.050 1.3258
Flow+ v7.0 Design Report: 5 year 480 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 5 year 480 minute winter. 720 minute analysis at 8 minute timestep. Mass balance: 99.97%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
480 minute winter Outlet 360 20.708 0.308 3.1 0.3484 0.0000OK Orifice 3.1 106.4
480 minute winter Node 2 360 20.709 0.223 4.7 12.8737 0.0000OK Swale 1 Outlet 3.1 0.208 0.076 3.9402
480 minute winter MH-0001 360 20.709 0.099 3.2 0.1121 0.0000OK PN001 Node 2 3.2 0.370 0.094 0.8084
480 minute winter MH-0002 336 21.306 0.596 3.8 5.3255 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
480 minute winter MH-0003 336 21.761 0.561 3.6 9.8898 0.0000OK Hydro-Brake® MH-0002 2.0
480 minute winter MH-0004 336 21.761 0.261 0.8 0.2956 0.0000SURCHARGED PN004 MH-0003 1.5 0.230 0.020 0.6301
480 minute winter MH-0005 368 22.417 0.617 3.6 21.4438 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
480 minute winter Node 3 360 20.709 0.159 1.9 0.1793 0.0000OK Swale 2 Node 2 1.8 0.181 0.037 1.4966
Flow+ v7.0 Design Report: 5 year 600 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 5 year 600 minute summer. 840 minute analysis at 15 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
600 minute summer Outlet 525 20.691 0.291 3.0 0.3291 0.0000OK Orifice 3.0 104.7
600 minute summer Node 2 525 20.691 0.205 4.9 11.2383 0.0000OK Swale 1 Outlet 3.0 0.216 0.074 3.7773
600 minute summer MH-0001 525 20.692 0.082 3.2 0.0929 0.0000OK PN001 Node 2 3.2 0.374 0.094 0.7314
600 minute summer MH-0002 375 21.288 0.578 4.0 4.4139 0.0000SURCHARGED Hydro-Brake® MH-0001 3.2
600 minute summer MH-0003 375 21.748 0.548 3.9 7.7870 0.0000OK Hydro-Brake® MH-0002 2.0
600 minute summer MH-0004 375 21.748 0.248 0.8 0.2807 0.0000SURCHARGED PN004 MH-0003 1.3 0.229 0.018 0.6301
600 minute summer MH-0005 420 22.396 0.596 3.9 17.5381 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
600 minute summer Node 3 525 20.691 0.141 2.1 0.1599 0.0000OK Swale 2 Node 2 2.0 0.107 0.040 1.3407
Flow+ v7.0 Design Report: 5 year 600 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 5 year 600 minute winter. 840 minute analysis at 15 minute timestep. Mass balance: 99.97%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
600 minute winter Outlet 480 20.719 0.319 3.2 0.3610 0.0000OK Orifice 3.2 115.4
600 minute winter Node 2 480 20.720 0.234 4.6 13.9818 0.0000OK Swale 1 Outlet 3.2 0.181 0.078 4.0287
600 minute winter MH-0001 465 20.720 0.110 3.2 0.1247 0.0000OK PN001 Node 2 3.2 0.374 0.094 0.8455
600 minute winter MH-0002 390 21.251 0.541 3.5 2.6328 0.0000SURCHARGED Hydro-Brake® MH-0001 3.2
600 minute winter MH-0003 420 21.753 0.553 3.2 8.6055 0.0000OK Hydro-Brake® MH-0002 2.0
600 minute winter MH-0004 420 21.753 0.253 0.8 0.2865 0.0000SURCHARGED PN004 MH-0003 1.4 0.230 0.019 0.6301
600 minute winter MH-0005 450 22.410 0.610 3.0 20.1170 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
600 minute winter Node 3 480 20.720 0.170 1.6 0.1918 0.0000OK Swale 2 Node 2 1.5 0.114 0.031 1.5945
Flow+ v7.0 Design Report: 5 year 720 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 5 year 720 minute summer. 960 minute analysis at 15 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
720 minute summer Outlet 525 20.698 0.298 3.1 0.3366 0.0000OK Orifice 3.1 112.1
720 minute summer Node 2 525 20.698 0.212 4.8 11.8704 0.0000OK Swale 1 Outlet 3.1 0.201 0.075 3.8509
720 minute summer MH-0001 525 20.699 0.089 3.2 0.1004 0.0000OK PN001 Node 2 3.2 0.374 0.094 0.7636
720 minute summer MH-0002 435 21.255 0.545 3.7 2.8240 0.0000SURCHARGED Hydro-Brake® MH-0001 3.2
720 minute summer MH-0003 450 21.742 0.542 3.5 6.7852 0.0000OK Hydro-Brake® MH-0002 2.0
720 minute summer MH-0004 450 21.742 0.242 0.8 0.2736 0.0000SURCHARGED PN004 MH-0003 1.3 0.229 0.018 0.6301
720 minute summer MH-0005 480 22.392 0.592 3.4 16.6734 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
720 minute summer Node 3 525 20.698 0.148 1.8 0.1674 0.0000OK Swale 2 Node 2 1.7 0.105 0.035 1.4022
Flow+ v7.0 Design Report: 5 year 720 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 5 year 720 minute winter. 960 minute analysis at 15 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
720 minute winter Outlet 480 20.714 0.314 3.1 0.3546 0.0000OK Orifice 3.1 121.8
720 minute winter Node 2 480 20.714 0.228 4.4 13.4094 0.0000OK Swale 1 Outlet 3.1 0.196 0.077 3.9840
720 minute winter MH-0001 480 20.714 0.104 3.2 0.1182 0.0000OK PN001 Node 2 3.1 0.374 0.092 0.8269
720 minute winter MH-0002 375 20.948 0.238 3.2 0.4211 0.0000SURCHARGED Hydro-Brake® MH-0001 3.2
720 minute winter MH-0003 495 21.744 0.544 2.9 7.1892 0.0000OK Hydro-Brake® MH-0002 2.0
720 minute winter MH-0004 495 21.744 0.244 0.8 0.2765 0.0000SURCHARGED PN004 MH-0003 1.3 0.230 0.019 0.6301
720 minute winter MH-0005 525 22.404 0.604 2.6 18.9297 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
720 minute winter Node 3 480 20.714 0.164 1.4 0.1854 0.0000OK Swale 2 Node 2 1.3 0.103 0.027 1.5449
Flow+ v7.0 Design Report: 5 year 960 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 5 year 960 minute summer. 1200 minute analysis at 15 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
960 minute summer Outlet 585 20.693 0.293 3.0 0.3308 0.0000OK Orifice 3.0 119.9
960 minute summer Node 2 585 20.693 0.207 4.6 11.3860 0.0000OK Swale 1 Outlet 3.0 0.161 0.075 3.7949
960 minute summer MH-0001 585 20.694 0.084 3.2 0.0945 0.0000OK PN001 Node 2 3.2 0.374 0.094 0.7386
960 minute summer MH-0002 510 21.078 0.368 3.4 0.6509 0.0000SURCHARGED Hydro-Brake® MH-0001 3.2
960 minute summer MH-0003 570 21.731 0.531 3.0 5.0905 0.0000OK Hydro-Brake® MH-0002 2.0
960 minute summer MH-0004 570 21.731 0.231 0.8 0.2616 0.0000SURCHARGED PN004 MH-0003 1.3 0.229 0.018 0.6301
960 minute summer MH-0005 615 22.382 0.582 2.8 14.9744 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
960 minute summer Node 3 585 20.693 0.143 1.5 0.1617 0.0000OK Swale 2 Node 2 1.4 0.102 0.028 1.3553
Flow+ v7.0 Design Report: 5 year 960 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 5 year 960 minute winter. 1200 minute analysis at 15 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
960 minute winter Outlet 630 20.703 0.303 3.1 0.3423 0.0000OK Orifice 3.1 135.8
960 minute winter Node 2 630 20.703 0.217 4.0 12.3499 0.0000OK Swale 1 Outlet 3.1 0.201 0.076 3.8954
960 minute winter MH-0001 630 20.704 0.094 3.0 0.1059 0.0000OK PN001 Node 2 3.0 0.366 0.089 0.7858
960 minute winter MH-0002 465 20.860 0.150 3.1 0.2642 0.0000OK Hydro-Brake® MH-0001 3.0
960 minute winter MH-0003 615 21.721 0.521 2.4 3.5032 0.0000OK Hydro-Brake® MH-0002 2.0
960 minute winter MH-0004 615 21.721 0.221 0.8 0.2504 0.0000OK PN004 MH-0003 1.2 0.239 0.017 0.6288
960 minute winter MH-0005 675 22.389 0.589 2.1 16.2164 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
960 minute winter Node 3 630 20.703 0.153 1.1 0.1732 0.0000OK Swale 2 Node 2 1.0 0.144 0.021 1.4482
Flow+ v7.0 Design Report: 5 year 1440 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 5 year 1440 minute summer. 1680 minute analysis at 30 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
1440 minute summer Outlet 870 20.673 0.273 2.9 0.3082 0.0000OK Orifice 2.9 131.0
1440 minute summer Node 2 870 20.673 0.187 3.9 9.5846 0.0000OK Swale 1 Outlet 2.9 0.162 0.072 3.5332
1440 minute summer MH-0001 870 20.674 0.064 3.0 0.0721 0.0000OK PN001 Node 2 3.0 0.364 0.087 0.6366
1440 minute summer MH-0002 720 20.846 0.136 3.0 0.2397 0.0000OK Hydro-Brake® MH-0001 3.0
1440 minute summer MH-0003 810 21.709 0.509 2.2 1.5626 0.0000OK Hydro-Brake® MH-0002 2.0
1440 minute summer MH-0004 810 21.709 0.209 0.8 0.2366 0.0000OK PN004 MH-0003 1.1 0.195 0.015 0.6201
1440 minute summer MH-0005 900 22.363 0.563 2.0 11.4151 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
1440 minute summer Node 3 870 20.673 0.123 1.0 0.1391 0.0000OK Swale 2 Node 2 0.9 0.100 0.019 1.1702
Flow+ v7.0 Design Report: 5 year 1440 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 5 year 1440 minute winter. 1680 minute analysis at 30 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
1440 minute winter Outlet 870 20.672 0.272 2.9 0.3077 0.0000OK Orifice 2.9 145.9
1440 minute winter Node 2 870 20.673 0.187 3.5 9.5445 0.0000OK Swale 1 Outlet 2.9 0.160 0.071 3.5266
1440 minute winter MH-0001 870 20.673 0.063 2.7 0.0715 0.0000OK PN001 Node 2 2.7 0.369 0.080 0.6341
1440 minute winter MH-0002 750 20.815 0.105 2.7 0.1854 0.0000OK Hydro-Brake® MH-0001 2.7
1440 minute winter MH-0003 750 21.394 0.194 2.0 0.3433 0.0000OK Hydro-Brake® MH-0002 1.9
1440 minute winter MH-0004 540 21.517 0.017 0.8 0.0192 0.0000OK PN004 MH-0003 0.8 0.216 0.011 0.2990
1440 minute winter MH-0005 960 22.362 0.562 1.5 11.1350 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
1440 minute winter Node 3 870 20.673 0.123 0.8 0.1386 0.0000OK Swale 2 Node 2 0.8 0.098 0.015 1.1660
Flow+ v7.0 Design Report: 10 year 15 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 10 year 15 minute summer. 255 minute analysis at 1 minute timestep. Mass balance: 97.99%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
15 minute summer Outlet 20 20.636 0.236 11.1 0.2669 0.0000OK Orifice 2.7 38.6
15 minute summer Node 2 185 20.636 0.150 23.0 6.5626 0.0000OK Swale 1 Outlet 11.1 0.427 0.273 2.9455
15 minute summer MH-0001 5 20.659 0.049 3.2 0.0550 0.0000OK PN001 Node 2 3.3 0.698 0.096 0.4837
15 minute summer MH-0002 19 21.368 0.658 22.9 8.2886 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
15 minute summer MH-0003 19 21.776 0.576 32.6 12.2761 0.0000OK Hydro-Brake® MH-0002 2.0
15 minute summer MH-0004 19 21.780 0.280 8.5 0.3169 0.0000SURCHARGED PN004 MH-0003 -7.8 0.229 -0.109 0.6301
15 minute summer MH-0005 19 22.389 0.589 39.6 16.2507 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
15 minute summer Node 3 11 20.685 0.135 21.0 0.1525 0.0000OK Swale 2 Node 2 20.3 0.865 0.413 0.8438
Flow+ v7.0 Design Report: 10 year 15 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 10 year 15 minute winter. 255 minute analysis at 1 minute timestep. Mass balance: 98.77%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
15 minute winter Outlet 16 20.648 0.248 11.8 0.2803 0.0000OK Orifice 2.8 39.6
15 minute winter Node 2 206 20.642 0.156 24.1 7.0182 0.0000OK Swale 1 Outlet 11.8 0.437 0.289 3.0453
15 minute winter MH-0001 5 20.659 0.049 3.2 0.0551 0.0000OK PN001 Node 2 3.3 0.701 0.095 0.5015
15 minute winter MH-0002 19 21.388 0.678 24.0 9.2838 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
15 minute winter MH-0003 19 21.781 0.581 34.7 12.9893 0.0000OK Hydro-Brake® MH-0002 2.0
15 minute winter MH-0004 20 21.786 0.286 6.6 0.3231 0.0000SURCHARGED PN004 MH-0003 -5.9 0.229 -0.082 0.6301
15 minute winter MH-0005 19 22.404 0.604 41.6 19.0579 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
15 minute winter Node 3 10 20.688 0.138 22.1 0.1564 0.0000OK Swale 2 Node 2 21.5 0.839 0.436 0.8821
Flow+ v7.0 Design Report: 10 year 30 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 10 year 30 minute summer. 270 minute analysis at 1 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
30 minute summer Outlet 38 20.655 0.255 6.5 0.2881 0.0000OK Orifice 2.8 42.8
30 minute summer Node 2 52 20.655 0.168 20.9 8.0240 0.0000OK Swale 1 Outlet 6.5 0.364 0.160 3.2540
30 minute summer MH-0001 6 20.657 0.047 3.2 0.0537 0.0000OK PN001 Node 2 3.2 0.680 0.095 0.5401
30 minute summer MH-0002 33 21.400 0.690 20.2 9.8592 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
30 minute summer MH-0003 33 21.787 0.587 29.0 14.0561 0.0000OK Hydro-Brake® MH-0002 2.0
30 minute summer MH-0004 34 21.788 0.288 2.9 0.3255 0.0000SURCHARGED PN004 MH-0003 2.2 0.229 0.031 0.6301
30 minute summer MH-0005 34 22.411 0.611 34.5 20.2258 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
30 minute summer Node 3 18 20.680 0.130 18.3 0.1465 0.0000OK Swale 2 Node 2 18.3 0.717 0.372 0.9994
Flow+ v7.0 Design Report: 10 year 30 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 10 year 30 minute winter. 270 minute analysis at 1 minute timestep. Mass balance: 99.79%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
30 minute winter Outlet 33 20.666 0.266 6.9 0.3008 0.0000OK Orifice 2.9 43.7
30 minute winter Node 2 41 20.665 0.179 19.2 8.9151 0.0000OK Swale 1 Outlet 6.9 0.376 0.169 3.4215
30 minute winter MH-0001 35 20.667 0.057 3.2 0.0640 0.0000OK PN001 Node 2 3.3 0.688 0.096 0.5968
30 minute winter MH-0002 33 21.429 0.719 18.4 11.2502 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
30 minute winter MH-0003 33 21.801 0.601 26.3 16.1753 0.0000SURCHARGED Hydro-Brake® MH-0002 2.0
30 minute winter MH-0004 35 21.805 0.305 4.1 0.3452 0.0000SURCHARGED PN004 MH-0003 3.4 0.185 0.047 0.6301
30 minute winter MH-0005 34 22.427 0.627 31.2 23.2195 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
30 minute winter Node 3 18 20.672 0.122 16.5 0.1385 0.0000OK Swale 2 Node 2 16.6 0.662 0.337 1.0992
Flow+ v7.0 Design Report: 10 year 60 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 10 year 60 minute summer. 300 minute analysis at 1 minute timestep. Mass balance: 99.84%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
60 minute summer Outlet 64 20.680 0.280 4.1 0.3166 0.0000OK Orifice 3.0 49.0
60 minute summer Node 2 65 20.680 0.194 15.9 10.2295 0.0000OK Swale 1 Outlet 4.1 0.330 0.102 3.6353
60 minute summer MH-0001 65 20.681 0.071 3.2 0.0807 0.0000OK PN001 Node 2 3.2 0.646 0.094 0.6759
60 minute summer MH-0002 62 21.417 0.707 15.1 10.6876 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
60 minute summer MH-0003 62 21.799 0.599 20.9 15.8655 0.0000OK Hydro-Brake® MH-0002 2.0
60 minute summer MH-0004 62 21.799 0.299 1.9 0.3379 0.0000SURCHARGED PN004 MH-0003 1.6 0.205 0.022 0.6301
60 minute summer MH-0005 63 22.429 0.629 25.0 23.5589 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
60 minute summer Node 3 66 20.680 0.130 13.2 0.1475 0.0000OK Swale 2 Node 2 13.2 0.513 0.269 1.2384
Flow+ v7.0 Design Report: 10 year 60 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 10 year 60 minute winter. 300 minute analysis at 1 minute timestep. Mass balance: 99.74%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
60 minute winter Outlet 63 20.692 0.292 4.4 0.3301 0.0000OK Orifice 3.0 50.0
60 minute winter Node 2 65 20.692 0.206 13.2 11.3179 0.0000OK Swale 1 Outlet 4.4 0.338 0.109 3.7868
60 minute winter MH-0001 64 20.693 0.083 3.2 0.0941 0.0000OK PN001 Node 2 3.2 0.654 0.094 0.7362
60 minute winter MH-0002 61 21.454 0.744 12.6 12.4625 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
60 minute winter MH-0003 61 21.815 0.615 17.0 18.4875 0.0000SURCHARGED Hydro-Brake® MH-0002 2.0
60 minute winter MH-0004 61 21.815 0.315 1.8 0.3566 0.0000SURCHARGED PN004 MH-0003 1.7 0.196 0.024 0.6301
60 minute winter MH-0005 62 22.446 0.646 20.2 26.7972 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
60 minute winter Node 3 66 20.692 0.142 10.7 0.1610 0.0000OK Swale 2 Node 2 10.5 0.446 0.213 1.3492
Flow+ v7.0 Design Report: 10 year 120 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 10 year 120 minute summer. 360 minute analysis at 2 minute timestep. Mass balance: 99.81%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
120 minute summer Outlet 124 20.704 0.304 3.4 0.3436 0.0000OK Orifice 3.1 59.7
120 minute summer Node 2 124 20.704 0.218 10.7 12.4583 0.0000OK Swale 1 Outlet 3.4 0.310 0.085 3.9051
120 minute summer MH-0001 124 20.705 0.095 3.2 0.1075 0.0000OK PN001 Node 2 3.2 0.595 0.094 0.7915
120 minute summer MH-0002 110 21.410 0.700 10.3 10.3556 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
120 minute summer MH-0003 120 21.799 0.599 13.3 15.8359 0.0000OK Hydro-Brake® MH-0002 2.0
120 minute summer MH-0004 120 21.804 0.304 1.3 0.3437 0.0000SURCHARGED PN004 MH-0003 1.7 0.205 0.023 0.6301
120 minute summer MH-0005 122 22.440 0.640 15.8 25.6908 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
120 minute summer Node 3 124 20.704 0.154 8.4 0.1744 0.0000OK Swale 2 Node 2 8.0 0.360 0.163 1.4581
Flow+ v7.0 Design Report: 10 year 120 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 10 year 120 minute winter. 360 minute analysis at 2 minute timestep. Mass balance: 99.75%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
120 minute winter Outlet 122 20.718 0.318 3.6 0.3596 0.0000OK Orifice 3.2 60.9
120 minute winter Node 2 122 20.718 0.232 8.8 13.8588 0.0000OK Swale 1 Outlet 3.6 0.318 0.089 4.0193
120 minute winter MH-0001 122 20.719 0.109 3.2 0.1235 0.0000OK PN001 Node 2 3.2 0.576 0.094 0.8419
120 minute winter MH-0002 116 21.449 0.739 8.3 12.2308 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
120 minute winter MH-0003 118 21.818 0.618 10.7 19.0044 0.0000SURCHARGED Hydro-Brake® MH-0002 2.0
120 minute winter MH-0004 118 21.818 0.318 1.3 0.3601 0.0000SURCHARGED PN004 MH-0003 1.8 0.197 0.025 0.6301
120 minute winter MH-0005 120 22.461 0.661 12.1 29.5630 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
120 minute winter Node 3 122 20.718 0.168 6.4 0.1904 0.0000OK Swale 2 Node 2 6.1 0.321 0.124 1.5840
Flow+ v7.0 Design Report: 10 year 180 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 10 year 180 minute summer. 420 minute analysis at 4 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
180 minute summer Outlet 184 20.713 0.313 3.2 0.3535 0.0000OK Orifice 3.1 69.3
180 minute summer Node 2 184 20.713 0.227 8.4 13.3131 0.0000OK Swale 1 Outlet 3.2 0.289 0.079 3.9762
180 minute summer MH-0001 184 20.714 0.104 3.2 0.1173 0.0000OK PN001 Node 2 3.2 0.511 0.094 0.8241
180 minute summer MH-0002 140 21.399 0.689 8.0 9.7952 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
180 minute summer MH-0003 148 21.794 0.594 10.6 15.0348 0.0000OK Hydro-Brake® MH-0002 2.0
180 minute summer MH-0004 160 21.798 0.298 1.2 0.3375 0.0000SURCHARGED PN004 MH-0003 1.7 0.188 0.023 0.6301
180 minute summer MH-0005 180 22.441 0.641 11.5 25.8897 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
180 minute summer Node 3 184 20.713 0.163 6.1 0.1843 0.0000OK Swale 2 Node 2 5.8 0.333 0.119 1.5362
Flow+ v7.0 Design Report: 10 year 180 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 10 year 180 minute winter. 420 minute analysis at 4 minute timestep. Mass balance: 99.78%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
180 minute winter Outlet 180 20.729 0.329 3.2 0.3716 0.0000OK Orifice 3.2 70.9
180 minute winter Node 2 180 20.729 0.243 7.0 14.9419 0.0000OK Swale 1 Outlet 3.2 0.286 0.079 4.0991
180 minute winter MH-0001 180 20.730 0.120 3.2 0.1354 0.0000OK PN001 Node 2 3.2 0.543 0.094 0.8758
180 minute winter MH-0002 148 21.435 0.725 6.6 11.5620 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
180 minute winter MH-0003 172 21.813 0.613 7.9 18.2247 0.0000SURCHARGED Hydro-Brake® MH-0002 2.0
180 minute winter MH-0004 172 21.814 0.314 1.0 0.3546 0.0000SURCHARGED PN004 MH-0003 1.3 0.206 0.019 0.6301
180 minute winter MH-0005 180 22.464 0.664 8.9 30.1900 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
180 minute winter Node 3 180 20.729 0.179 4.7 0.2024 0.0000OK Swale 2 Node 2 4.5 0.290 0.091 1.6748
Flow+ v7.0 Design Report: 10 year 240 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 10 year 240 minute summer. 480 minute analysis at 4 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
240 minute summer Outlet 240 20.714 0.314 3.2 0.3556 0.0000OK Orifice 3.1 78.4
240 minute summer Node 2 240 20.715 0.229 7.2 13.5026 0.0000OK Swale 1 Outlet 3.2 0.266 0.078 3.9914
240 minute summer MH-0001 240 20.716 0.106 3.2 0.1194 0.0000OK PN001 Node 2 3.2 0.517 0.094 0.8303
240 minute summer MH-0002 172 21.389 0.679 7.0 9.3286 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
240 minute summer MH-0003 180 21.789 0.589 8.3 14.2613 0.0000OK Hydro-Brake® MH-0002 2.0
240 minute summer MH-0004 180 21.789 0.289 1.3 0.3266 0.0000SURCHARGED PN004 MH-0003 1.5 0.230 0.021 0.6301
240 minute summer MH-0005 240 22.438 0.638 9.6 25.3304 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
240 minute summer Node 3 240 20.715 0.165 5.1 0.1865 0.0000OK Swale 2 Node 2 4.9 0.305 0.099 1.5531
Flow+ v7.0 Design Report: 10 year 240 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 10 year 240 minute winter. 480 minute analysis at 4 minute timestep. Mass balance: 99.81%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
240 minute winter Outlet 236 20.733 0.333 3.3 0.3766 0.0000OK Orifice 3.2 80.7
240 minute winter Node 2 236 20.734 0.248 6.2 15.4135 0.0000OK Swale 1 Outlet 3.3 0.279 0.080 4.1314
240 minute winter MH-0001 236 20.734 0.124 3.2 0.1404 0.0000OK PN001 Node 2 3.2 0.477 0.094 0.8901
240 minute winter MH-0002 184 21.422 0.712 5.7 10.9205 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
240 minute winter MH-0003 196 21.806 0.606 6.5 17.0908 0.0000SURCHARGED Hydro-Brake® MH-0002 2.0
240 minute winter MH-0004 196 21.806 0.306 1.2 0.3466 0.0000SURCHARGED PN004 MH-0003 0.8 0.191 0.012 0.6301
240 minute winter MH-0005 236 22.464 0.664 7.1 30.1641 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
240 minute winter Node 3 236 20.733 0.183 3.8 0.2075 0.0000OK Swale 2 Node 2 3.6 0.266 0.074 1.7124
Flow+ v7.0 Design Report: 10 year 360 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 10 year 360 minute summer. 600 minute analysis at 8 minute timestep. Mass balance: 99.97%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
360 minute summer Outlet 304 20.712 0.312 3.1 0.3525 0.0000OK Orifice 3.1 94.4
360 minute summer Node 2 304 20.712 0.226 6.2 13.2239 0.0000OK Swale 1 Outlet 3.1 0.246 0.077 3.9690
360 minute summer MH-0001 304 20.713 0.103 3.2 0.1162 0.0000OK PN001 Node 2 3.2 0.471 0.094 0.8210
360 minute summer MH-0002 240 21.370 0.660 5.7 8.4083 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
360 minute summer MH-0003 248 21.780 0.580 6.4 12.8713 0.0000OK Hydro-Brake® MH-0002 2.0
360 minute summer MH-0004 248 21.780 0.280 1.1 0.3167 0.0000SURCHARGED PN004 MH-0003 1.5 0.230 0.021 0.6301
360 minute summer MH-0005 296 22.430 0.630 7.2 23.9060 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
360 minute summer Node 3 304 20.712 0.162 3.8 0.1833 0.0000OK Swale 2 Node 2 3.6 0.159 0.074 1.5283
Flow+ v7.0 Design Report: 10 year 360 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 10 year 360 minute winter. 600 minute analysis at 8 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
360 minute winter Outlet 328 20.731 0.331 3.2 0.3741 0.0000OK Orifice 3.2 98.6
360 minute winter Node 2 328 20.731 0.245 5.2 15.1789 0.0000OK Swale 1 Outlet 3.2 0.252 0.079 4.1156
360 minute winter MH-0001 328 20.732 0.122 3.2 0.1379 0.0000OK PN001 Node 2 3.2 0.451 0.094 0.8829
360 minute winter MH-0002 264 21.389 0.679 4.7 9.3202 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
360 minute winter MH-0003 272 21.795 0.595 5.0 15.2500 0.0000OK Hydro-Brake® MH-0002 2.0
360 minute winter MH-0004 272 21.795 0.295 0.8 0.3336 0.0000SURCHARGED PN004 MH-0003 1.4 0.230 0.019 0.6301
360 minute winter MH-0005 344 22.455 0.655 5.2 28.4086 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
360 minute winter Node 3 328 20.731 0.181 2.8 0.2050 0.0000OK Swale 2 Node 2 2.7 0.197 0.054 1.6940
Flow+ v7.0 Design Report: 10 year 480 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 10 year 480 minute summer. 720 minute analysis at 8 minute timestep. Mass balance: 99.95%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
480 minute summer Outlet 360 20.709 0.309 3.1 0.3491 0.0000OK Orifice 3.1 107.9
480 minute summer Node 2 360 20.709 0.223 5.5 12.9277 0.0000OK Swale 1 Outlet 3.1 0.252 0.077 3.9447
480 minute summer MH-0001 360 20.710 0.100 3.2 0.1128 0.0000OK PN001 Node 2 3.2 0.450 0.094 0.8108
480 minute summer MH-0002 312 21.349 0.639 4.8 7.3746 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
480 minute summer MH-0003 312 21.772 0.572 5.2 11.5923 0.0000OK Hydro-Brake® MH-0002 2.0
480 minute summer MH-0004 312 21.772 0.272 0.8 0.3077 0.0000SURCHARGED PN004 MH-0003 1.5 0.230 0.021 0.6301
480 minute summer MH-0005 360 22.423 0.623 5.6 22.5961 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
480 minute summer Node 3 360 20.709 0.159 2.9 0.1799 0.0000OK Swale 2 Node 2 2.8 0.173 0.056 1.5016
Flow+ v7.0 Design Report: 10 year 480 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 10 year 480 minute winter. 720 minute analysis at 8 minute timestep. Mass balance: 99.97%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
480 minute winter Outlet 368 20.729 0.329 3.2 0.3721 0.0000OK Orifice 3.2 114.8
480 minute winter Node 2 368 20.729 0.243 4.8 14.9907 0.0000OK Swale 1 Outlet 3.2 0.209 0.079 4.1026
480 minute winter MH-0001 368 20.730 0.120 3.2 0.1358 0.0000OK PN001 Node 2 3.2 0.372 0.094 0.8771
480 minute winter MH-0002 344 21.357 0.647 4.1 7.7840 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
480 minute winter MH-0003 344 21.784 0.584 4.1 13.5425 0.0000OK Hydro-Brake® MH-0002 2.0
480 minute winter MH-0004 344 21.784 0.284 0.8 0.3215 0.0000SURCHARGED PN004 MH-0003 1.4 0.230 0.020 0.6301
480 minute winter MH-0005 384 22.445 0.645 4.1 26.6133 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
480 minute winter Node 3 368 20.729 0.179 2.2 0.2030 0.0000OK Swale 2 Node 2 2.1 0.180 0.043 1.6789
Flow+ v7.0 Design Report: 10 year 600 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 10 year 600 minute summer. 840 minute analysis at 15 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
600 minute summer Outlet 435 20.707 0.307 3.1 0.3472 0.0000OK Orifice 3.1 117.0
600 minute summer Node 2 435 20.707 0.221 5.1 12.7623 0.0000OK Swale 1 Outlet 3.1 0.223 0.076 3.9309
600 minute summer MH-0001 435 20.708 0.098 3.2 0.1109 0.0000OK PN001 Node 2 3.2 0.366 0.094 0.8039
600 minute summer MH-0002 390 21.325 0.615 4.3 6.2169 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
600 minute summer MH-0003 390 21.766 0.566 4.4 10.6733 0.0000OK Hydro-Brake® MH-0002 2.0
600 minute summer MH-0004 390 21.766 0.266 0.8 0.3012 0.0000SURCHARGED PN004 MH-0003 1.3 0.230 0.019 0.6301
600 minute summer MH-0005 435 22.419 0.619 4.5 21.7960 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
600 minute summer Node 3 435 20.707 0.157 2.4 0.1780 0.0000OK Swale 2 Node 2 2.3 0.104 0.047 1.4864
Flow+ v7.0 Design Report: 10 year 600 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 10 year 600 minute winter. 840 minute analysis at 15 minute timestep. Mass balance: 99.96%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
600 minute winter Outlet 435 20.725 0.325 3.2 0.3675 0.0000OK Orifice 3.2 126.6
600 minute winter Node 2 435 20.725 0.239 4.7 14.5671 0.0000OK Swale 1 Outlet 3.2 0.186 0.079 4.0723
600 minute winter MH-0001 435 20.726 0.116 3.2 0.1312 0.0000OK PN001 Node 2 3.2 0.365 0.094 0.8639
600 minute winter MH-0002 420 21.316 0.606 3.7 5.8113 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
600 minute winter MH-0003 420 21.772 0.572 3.5 11.5514 0.0000OK Hydro-Brake® MH-0002 2.0
600 minute winter MH-0004 420 21.772 0.272 0.8 0.3074 0.0000SURCHARGED PN004 MH-0003 1.5 0.230 0.021 0.6301
600 minute winter MH-0005 465 22.438 0.638 3.4 25.3956 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
600 minute winter Node 3 435 20.725 0.175 1.8 0.1984 0.0000OK Swale 2 Node 2 1.7 0.111 0.035 1.6442
Flow+ v7.0 Design Report: 10 year 720 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 10 year 720 minute summer. 960 minute analysis at 15 minute timestep. Mass balance: 99.97%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
720 minute summer Outlet 480 20.706 0.306 3.1 0.3465 0.0000OK Orifice 3.1 124.9
720 minute summer Node 2 480 20.707 0.221 4.8 12.7079 0.0000OK Swale 1 Outlet 3.1 0.216 0.076 3.9263
720 minute summer MH-0001 480 20.707 0.097 3.2 0.1102 0.0000OK PN001 Node 2 3.2 0.373 0.094 0.8016
720 minute summer MH-0002 450 21.311 0.601 4.0 5.5590 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
720 minute summer MH-0003 450 21.759 0.559 4.0 9.5363 0.0000OK Hydro-Brake® MH-0002 2.0
720 minute summer MH-0004 450 21.759 0.259 0.8 0.2931 0.0000SURCHARGED PN004 MH-0003 1.3 0.230 0.018 0.6301
720 minute summer MH-0005 495 22.414 0.614 4.0 20.9481 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
720 minute summer Node 3 480 20.707 0.157 2.1 0.1774 0.0000OK Swale 2 Node 2 2.0 0.102 0.041 1.4814
Flow+ v7.0 Design Report: 10 year 720 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 10 year 720 minute winter. 960 minute analysis at 15 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
720 minute winter Outlet 555 20.739 0.339 3.3 0.3834 0.0000OK Orifice 3.3 136.5
720 minute winter Node 2 555 20.740 0.253 4.6 16.0510 0.0000OK Swale 1 Outlet 3.3 0.178 0.080 4.1729
720 minute winter MH-0001 540 20.740 0.130 3.2 0.1468 0.0000OK PN001 Node 2 3.2 0.366 0.093 0.9081
720 minute winter MH-0002 465 21.254 0.544 3.4 2.7990 0.0000SURCHARGED Hydro-Brake® MH-0001 3.2
720 minute winter MH-0003 495 21.763 0.563 3.2 10.2371 0.0000OK Hydro-Brake® MH-0002 2.0
720 minute winter MH-0004 495 21.764 0.264 0.8 0.2981 0.0000SURCHARGED PN004 MH-0003 1.3 0.230 0.018 0.6301
720 minute winter MH-0005 540 22.431 0.631 3.0 24.0140 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
720 minute winter Node 3 555 20.740 0.190 1.6 0.2144 0.0000OK Swale 2 Node 2 1.5 0.119 0.031 1.7616
Flow+ v7.0 Design Report: 10 year 960 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 10 year 960 minute summer. 1200 minute analysis at 15 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
960 minute summer Outlet 645 20.713 0.313 3.2 0.3539 0.0000OK Orifice 3.1 137.3
960 minute summer Node 2 645 20.713 0.227 4.7 13.3510 0.0000OK Swale 1 Outlet 3.2 0.170 0.077 3.9793
960 minute summer MH-0001 645 20.714 0.104 3.2 0.1179 0.0000OK PN001 Node 2 3.2 0.366 0.094 0.8259
960 minute summer MH-0002 570 21.250 0.540 3.6 2.5740 0.0000SURCHARGED Hydro-Brake® MH-0001 3.2
960 minute summer MH-0003 585 21.746 0.546 3.4 7.4519 0.0000OK Hydro-Brake® MH-0002 2.0
960 minute summer MH-0004 585 21.746 0.246 0.8 0.2783 0.0000SURCHARGED PN004 MH-0003 1.4 0.233 0.019 0.6301
960 minute summer MH-0005 630 22.402 0.602 3.2 18.7043 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
960 minute summer Node 3 645 20.713 0.163 1.7 0.1848 0.0000OK Swale 2 Node 2 1.6 0.102 0.033 1.5397
Flow+ v7.0 Design Report: 10 year 960 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 10 year 960 minute winter. 1200 minute analysis at 15 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
960 minute winter Outlet 630 20.727 0.327 3.2 0.3697 0.0000OK Orifice 3.2 149.0
960 minute winter Node 2 630 20.727 0.241 4.3 14.7716 0.0000OK Swale 1 Outlet 3.2 0.204 0.079 4.0869
960 minute winter MH-0001 630 20.728 0.118 3.1 0.1333 0.0000OK PN001 Node 2 3.1 0.366 0.090 0.8700
960 minute winter MH-0002 495 20.895 0.185 3.1 0.3263 0.0000OK Hydro-Brake® MH-0001 3.1
960 minute winter MH-0003 630 21.745 0.545 2.7 7.3243 0.0000OK Hydro-Brake® MH-0002 2.0
960 minute winter MH-0004 630 21.745 0.245 0.8 0.2774 0.0000SURCHARGED PN004 MH-0003 1.2 0.230 0.017 0.6301
960 minute winter MH-0005 690 22.416 0.616 2.4 21.2948 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
960 minute winter Node 3 630 20.727 0.177 1.3 0.2006 0.0000OK Swale 2 Node 2 1.2 0.144 0.025 1.6611
Flow+ v7.0 Design Report: 10 year 1440 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 10 year 1440 minute summer. 1680 minute analysis at 30 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
1440 minute summer Outlet 870 20.696 0.296 3.0 0.3343 0.0000OK Orifice 3.0 150.0
1440 minute summer Node 2 870 20.696 0.210 4.2 11.6732 0.0000OK Swale 1 Outlet 3.0 0.161 0.075 3.8291
1440 minute summer MH-0001 870 20.697 0.087 3.1 0.0979 0.0000OK PN001 Node 2 3.1 0.355 0.091 0.7534
1440 minute summer MH-0002 720 20.882 0.172 3.1 0.3044 0.0000OK Hydro-Brake® MH-0001 3.1
1440 minute summer MH-0003 840 21.723 0.523 2.6 3.7915 0.0000OK Hydro-Brake® MH-0002 2.0
1440 minute summer MH-0004 840 21.723 0.223 0.8 0.2524 0.0000OK PN004 MH-0003 0.8 0.225 0.011 0.6297
1440 minute summer MH-0005 900 22.387 0.587 2.3 15.8108 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
1440 minute summer Node 3 870 20.696 0.146 1.2 0.1652 0.0000OK Swale 2 Node 2 1.1 0.103 0.023 1.3835
Flow+ v7.0 Design Report: 10 year 1440 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 10 year 1440 minute winter. 1680 minute analysis at 30 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
1440 minute winter Outlet 930 20.702 0.302 3.1 0.3415 0.0000OK Orifice 3.1 168.7
1440 minute winter Node 2 930 20.702 0.216 3.7 12.2782 0.0000OK Swale 1 Outlet 3.1 0.163 0.076 3.8887
1440 minute winter MH-0001 900 20.703 0.093 2.9 0.1051 0.0000OK PN001 Node 2 2.9 0.369 0.085 0.7825
1440 minute winter MH-0002 720 20.831 0.121 2.9 0.2134 0.0000OK Hydro-Brake® MH-0001 2.9
1440 minute winter MH-0003 840 21.690 0.490 2.2 0.8651 0.0000OK Hydro-Brake® MH-0002 2.0
1440 minute winter MH-0004 840 21.690 0.190 0.8 0.2145 0.0000OK PN004 MH-0003 0.9 0.228 0.013 0.5981
1440 minute winter MH-0005 990 22.392 0.592 1.7 16.7565 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
1440 minute winter Node 3 930 20.702 0.152 0.9 0.1723 0.0000OK Swale 2 Node 2 0.9 0.099 0.018 1.4414
Flow+ v7.0 Design Report: 30 year 15 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 30 year 15 minute summer. 255 minute analysis at 1 minute timestep. Mass balance: 98.91%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
15 minute summer Outlet 19 20.661 0.261 12.9 0.2948 0.0000OK Orifice 2.8 40.7
15 minute summer Node 2 58 20.651 0.165 28.4 7.7220 0.0000OK Swale 1 Outlet 12.9 0.445 0.316 3.2387
15 minute summer MH-0001 5 20.658 0.048 3.2 0.0548 0.0000OK PN001 Node 2 3.3 0.694 0.096 0.5219
15 minute summer MH-0002 19 21.415 0.705 28.6 10.5679 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
15 minute summer MH-0003 19 21.793 0.593 42.2 14.9838 0.0000OK Hydro-Brake® MH-0002 2.0
15 minute summer MH-0004 20 21.797 0.297 4.1 0.3359 0.0000SURCHARGED PN004 MH-0003 4.5 0.175 0.062 0.6301
15 minute summer MH-0005 19 22.418 0.618 50.2 21.6157 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
15 minute summer Node 3 11 20.703 0.153 26.7 0.1732 0.0000OK Swale 2 Node 2 25.8 0.942 0.524 0.9918
Flow+ v7.0 Design Report: 30 year 15 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 30 year 15 minute winter. 255 minute analysis at 1 minute timestep. Mass balance: 99.62%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
15 minute winter Outlet 15 20.670 0.270 12.3 0.3056 0.0000OK Orifice 2.9 41.6
15 minute winter Node 2 55 20.662 0.176 29.9 8.6300 0.0000OK Swale 1 Outlet 12.3 0.452 0.301 3.3941
15 minute winter MH-0001 20 20.665 0.055 3.2 0.0620 0.0000OK PN001 Node 2 3.3 0.692 0.096 0.5830
15 minute winter MH-0002 19 21.443 0.733 30.0 11.9656 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
15 minute winter MH-0003 19 21.806 0.606 42.0 17.0642 0.0000SURCHARGED Hydro-Brake® MH-0002 2.0
15 minute winter MH-0004 18 21.810 0.310 8.3 0.3509 0.0000SURCHARGED PN004 MH-0003 -7.6 -0.192 -0.106 0.6301
15 minute winter MH-0005 19 22.428 0.628 52.8 23.4957 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
15 minute winter Node 3 11 20.707 0.157 28.0 0.1774 0.0000OK Swale 2 Node 2 27.2 0.919 0.553 1.0777
Flow+ v7.0 Design Report: 30 year 30 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 30 year 30 minute summer. 270 minute analysis at 1 minute timestep. Mass balance: 99.67%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
30 minute summer Outlet 35 20.681 0.281 6.5 0.3176 0.0000OK Orifice 3.0 45.0
30 minute summer Node 2 42 20.680 0.194 26.1 10.2342 0.0000OK Swale 1 Outlet 6.5 0.364 0.160 3.6394
30 minute summer MH-0001 36 20.682 0.072 3.2 0.0809 0.0000OK PN001 Node 2 3.2 0.671 0.095 0.6768
30 minute summer MH-0002 33 21.466 0.756 25.3 12.9790 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
30 minute summer MH-0003 34 21.817 0.617 36.6 18.8285 0.0000SURCHARGED Hydro-Brake® MH-0002 2.0
30 minute summer MH-0004 34 21.818 0.318 3.1 0.3592 0.0000SURCHARGED PN004 MH-0003 -2.3 0.150 -0.033 0.6301
30 minute summer MH-0005 34 22.443 0.643 44.1 26.2315 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
30 minute summer Node 3 18 20.699 0.149 23.4 0.1682 0.0000OK Swale 2 Node 2 23.4 0.766 0.475 1.2411
Flow+ v7.0 Design Report: 30 year 30 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 30 year 30 minute winter. 270 minute analysis at 1 minute timestep. Mass balance: 99.55%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
30 minute winter Outlet 33 20.696 0.296 7.4 0.3349 0.0000OK Orifice 3.0 46.0
30 minute winter Node 2 37 20.695 0.209 24.0 11.5759 0.0000OK Swale 1 Outlet 7.4 0.383 0.182 3.8196
30 minute winter MH-0001 35 20.696 0.086 3.2 0.0972 0.0000OK PN001 Node 2 3.4 0.681 0.100 0.7495
30 minute winter MH-0002 25 21.600 0.890 23.1 13.2476 1.3425FLOOD Hydro-Brake® MH-0001 3.2
30 minute winter MH-0003 33 21.834 0.634 32.2 21.5304 0.0000SURCHARGED Hydro-Brake® MH-0002 2.0
30 minute winter MH-0004 33 21.835 0.335 4.3 0.3784 0.0000SURCHARGED PN004 MH-0003 -3.6 0.163 -0.050 0.6301
30 minute winter MH-0005 34 22.464 0.664 39.9 30.2098 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
30 minute winter Node 3 37 20.695 0.145 21.2 0.1643 0.0000OK Swale 2 Node 2 21.2 0.705 0.431 1.3752
Flow+ v7.0 Design Report: 30 year 60 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 30 year 60 minute summer. 300 minute analysis at 1 minute timestep. Mass balance: 99.76%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
60 minute summer Outlet 65 20.712 0.312 4.5 0.3531 0.0000OK Orifice 3.1 51.7
60 minute summer Node 2 65 20.713 0.227 19.7 13.2841 0.0000OK Swale 1 Outlet 4.5 0.340 0.109 3.9739
60 minute summer MH-0001 64 20.713 0.103 3.2 0.1170 0.0000OK PN001 Node 2 3.2 0.654 0.094 0.8233
60 minute summer MH-0002 45 21.600 0.890 18.9 13.2476 0.9963FLOOD Hydro-Brake® MH-0001 3.2
60 minute summer MH-0003 63 21.835 0.635 26.7 21.7165 0.0000SURCHARGED Hydro-Brake® MH-0002 2.0
60 minute summer MH-0004 63 21.835 0.335 1.9 0.3793 0.0000SURCHARGED PN004 MH-0003 1.3 0.192 0.019 0.6301
60 minute summer MH-0005 64 22.468 0.668 32.0 30.9904 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
60 minute summer Node 3 66 20.713 0.163 17.0 0.1846 0.0000OK Swale 2 Node 2 16.9 0.550 0.344 1.5359
Flow+ v7.0 Design Report: 30 year 60 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 30 year 60 minute winter. 300 minute analysis at 1 minute timestep. Mass balance: 99.89%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
60 minute winter Outlet 64 20.727 0.327 4.7 0.3698 0.0000OK Orifice 3.2 52.6
60 minute winter Node 2 64 20.727 0.241 16.2 14.7694 0.0000OK Swale 1 Outlet 4.7 0.346 0.115 4.0868
60 minute winter MH-0001 64 20.728 0.118 3.2 0.1336 0.0000OK PN001 Node 2 3.2 0.668 0.095 0.8708
60 minute winter MH-0002 40 21.600 0.890 15.8 13.2476 3.3923FLOOD Hydro-Brake® MH-0001 3.2
60 minute winter MH-0003 62 21.856 0.656 21.4 25.0702 0.0000SURCHARGED Hydro-Brake® MH-0002 2.0
60 minute winter MH-0004 62 21.856 0.356 2.2 0.4030 0.0000SURCHARGED PN004 MH-0003 1.8 0.186 0.026 0.6301
60 minute winter MH-0005 63 22.493 0.693 25.9 35.4974 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
60 minute winter Node 3 65 20.728 0.178 13.8 0.2008 0.0000OK Swale 2 Node 2 13.4 0.478 0.273 1.6614
Flow+ v7.0 Design Report: 30 year 120 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 30 year 120 minute summer. 360 minute analysis at 2 minute timestep. Mass balance: 99.79%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
120 minute summer Outlet 124 20.742 0.342 3.6 0.3869 0.0000OK Orifice 3.3 63.2
120 minute summer Node 2 124 20.743 0.257 12.8 16.3813 0.0000OK Swale 1 Outlet 3.6 0.307 0.089 4.1934
120 minute summer MH-0001 124 20.743 0.133 3.2 0.1507 0.0000OK PN001 Node 2 3.2 0.605 0.094 0.9191
120 minute summer MH-0002 82 21.600 0.890 12.6 13.2476 0.7647FLOOD Hydro-Brake® MH-0001 3.2
120 minute summer MH-0003 122 21.842 0.642 16.8 22.7558 0.0000SURCHARGED Hydro-Brake® MH-0002 2.0
120 minute summer MH-0004 122 21.842 0.342 0.8 0.3867 0.0000SURCHARGED PN004 MH-0003 1.3 0.203 0.019 0.6301
120 minute summer MH-0005 124 22.487 0.687 20.2 34.4666 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
120 minute summer Node 3 124 20.742 0.192 10.7 0.2177 0.0000OK Swale 2 Node 2 10.2 0.374 0.208 1.7856
Flow+ v7.0 Design Report: 30 year 120 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 30 year 120 minute winter. 360 minute analysis at 2 minute timestep. Mass balance: 99.81%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
120 minute winter Outlet 122 20.759 0.359 4.0 0.4058 0.0000OK Orifice 3.4 64.3
120 minute winter Node 2 122 20.759 0.273 10.5 18.2430 0.0000OK Swale 1 Outlet 4.0 0.320 0.097 4.2936
120 minute winter MH-0001 122 20.760 0.150 3.2 0.1698 0.0000OK PN001 Node 2 3.2 0.602 0.094 0.9715
120 minute winter MH-0002 76 21.600 0.890 10.3 13.2476 3.5019FLOOD Hydro-Brake® MH-0001 3.2
120 minute winter MH-0003 120 21.867 0.667 13.1 26.7605 0.0000SURCHARGED Hydro-Brake® MH-0002 2.0
120 minute winter MH-0004 120 21.867 0.367 1.0 0.4150 0.0000SURCHARGED PN004 MH-0003 1.1 0.193 0.016 0.6301
120 minute winter MH-0005 122 22.514 0.714 15.6 39.4767 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
120 minute winter Node 3 122 20.759 0.209 8.3 0.2366 0.0000OK Swale 2 Node 2 7.9 0.341 0.161 1.9121
Flow+ v7.0 Design Report: 30 year 180 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 30 year 180 minute summer. 420 minute analysis at 4 minute timestep. Mass balance: 99.78%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
180 minute summer Outlet 184 20.752 0.352 3.4 0.3984 0.0000OK Orifice 3.3 73.6
180 minute summer Node 2 184 20.753 0.267 9.9 17.5084 0.0000OK Swale 1 Outlet 3.4 0.306 0.084 4.2571
180 minute summer MH-0001 184 20.754 0.144 3.2 0.1624 0.0000OK PN001 Node 2 3.2 0.546 0.094 0.9513
180 minute summer MH-0002 128 21.600 0.890 9.7 13.2476 0.1451FLOOD Hydro-Brake® MH-0001 3.2
180 minute summer MH-0003 172 21.836 0.636 13.1 21.7745 0.0000SURCHARGED Hydro-Brake® MH-0002 2.0
180 minute summer MH-0004 172 21.836 0.336 1.0 0.3797 0.0000SURCHARGED PN004 MH-0003 1.4 0.160 0.020 0.6301
180 minute summer MH-0005 184 22.492 0.692 14.8 35.3584 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
180 minute summer Node 3 184 20.753 0.203 7.8 0.2294 0.0000OK Swale 2 Node 2 7.4 0.334 0.151 1.8651
Flow+ v7.0 Design Report: 30 year 180 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 30 year 180 minute winter. 420 minute analysis at 4 minute timestep. Mass balance: 99.79%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
180 minute winter Outlet 180 20.773 0.373 3.5 0.4218 0.0000OK Orifice 3.5 75.2
180 minute winter Node 2 180 20.774 0.288 8.3 19.8837 0.0000OK Swale 1 Outlet 3.5 0.286 0.085 4.3582
180 minute winter MH-0001 180 20.774 0.164 3.2 0.1859 0.0000OK PN001 Node 2 3.2 0.557 0.094 1.0135
180 minute winter MH-0002 116 21.600 0.890 8.0 13.2476 2.4340FLOOD Hydro-Brake® MH-0001 3.2
180 minute winter MH-0003 176 21.864 0.664 9.8 26.3339 0.0000SURCHARGED Hydro-Brake® MH-0002 2.0
180 minute winter MH-0004 176 21.864 0.364 0.8 0.4120 0.0000SURCHARGED PN004 MH-0003 1.0 0.204 0.014 0.6301
180 minute winter MH-0005 180 22.521 0.721 11.4 40.7879 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
180 minute winter Node 3 180 20.774 0.223 6.0 0.2528 0.0000OK Swale 2 Node 2 5.7 0.309 0.116 2.0064
Flow+ v7.0 Design Report: 30 year 240 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 30 year 240 minute summer. 480 minute analysis at 4 minute timestep. Mass balance: 99.80%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
240 minute summer Outlet 240 20.754 0.354 3.4 0.4005 0.0000OK Orifice 3.4 83.6
240 minute summer Node 2 240 20.755 0.269 8.7 17.7144 0.0000OK Swale 1 Outlet 3.4 0.289 0.082 4.2678
240 minute summer MH-0001 240 20.755 0.145 3.2 0.1645 0.0000OK PN001 Node 2 3.2 0.511 0.094 0.9570
240 minute summer MH-0002 176 21.535 0.825 8.4 13.1322 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
240 minute summer MH-0003 200 21.831 0.631 10.5 20.9455 0.0000SURCHARGED Hydro-Brake® MH-0002 2.0
240 minute summer MH-0004 200 21.831 0.331 0.8 0.3739 0.0000SURCHARGED PN004 MH-0003 0.9 0.188 0.012 0.6301
240 minute summer MH-0005 240 22.491 0.691 12.3 35.2230 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
240 minute summer Node 3 240 20.755 0.205 6.5 0.2315 0.0000OK Swale 2 Node 2 6.2 0.333 0.126 1.8792
Flow+ v7.0 Design Report: 30 year 240 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 30 year 240 minute winter. 480 minute analysis at 4 minute timestep. Mass balance: 99.79%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
240 minute winter Outlet 232 20.778 0.378 3.5 0.4280 0.0000OK Orifice 3.5 85.9
240 minute winter Node 2 232 20.779 0.293 7.2 20.5267 0.0000OK Swale 1 Outlet 3.5 0.301 0.085 4.3754
240 minute winter MH-0001 232 20.780 0.170 3.2 0.1921 0.0000OK PN001 Node 2 3.2 0.507 0.094 1.0289
240 minute winter MH-0002 152 21.600 0.890 6.8 13.2476 2.1345FLOOD Hydro-Brake® MH-0001 3.2
240 minute winter MH-0003 228 21.857 0.657 8.5 25.1587 0.0000SURCHARGED Hydro-Brake® MH-0002 2.0
240 minute winter MH-0004 228 21.857 0.357 0.9 0.4037 0.0000SURCHARGED PN004 MH-0003 1.5 0.193 0.021 0.6301
240 minute winter MH-0005 236 22.523 0.723 9.1 41.0809 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
240 minute winter Node 3 232 20.779 0.229 4.8 0.2591 0.0000OK Swale 2 Node 2 4.6 0.291 0.093 2.0380
Flow+ v7.0 Design Report: 30 year 360 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 30 year 360 minute summer. 600 minute analysis at 8 minute timestep. Mass balance: 99.83%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
360 minute summer Outlet 304 20.751 0.351 3.3 0.3967 0.0000OK Orifice 3.3 102.0
360 minute summer Node 2 304 20.751 0.265 7.1 17.3330 0.0000OK Swale 1 Outlet 3.3 0.235 0.082 4.2478
360 minute summer MH-0001 304 20.752 0.142 3.2 0.1606 0.0000OK PN001 Node 2 3.2 0.482 0.094 0.9464
360 minute summer MH-0002 256 21.449 0.739 6.7 12.2497 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
360 minute summer MH-0003 264 21.819 0.619 8.0 19.1454 0.0000SURCHARGED Hydro-Brake® MH-0002 2.0
360 minute summer MH-0004 264 21.819 0.319 0.8 0.3611 0.0000SURCHARGED PN004 MH-0003 1.1 0.145 0.016 0.6301
360 minute summer MH-0005 336 22.482 0.682 9.1 33.5204 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
360 minute summer Node 3 304 20.751 0.201 4.8 0.2276 0.0000OK Swale 2 Node 2 4.6 0.161 0.093 1.8534
Flow+ v7.0 Design Report: 30 year 360 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 30 year 360 minute winter. 600 minute analysis at 8 minute timestep. Mass balance: 99.82%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
360 minute winter Outlet 296 20.776 0.376 3.5 0.4253 0.0000OK Orifice 3.5 105.4
360 minute winter Node 2 296 20.777 0.291 6.0 20.2426 0.0000OK Swale 1 Outlet 3.5 0.276 0.085 4.3692
360 minute winter MH-0001 296 20.777 0.167 3.2 0.1893 0.0000OK PN001 Node 2 3.2 0.483 0.094 1.0221
360 minute winter MH-0002 240 21.600 0.890 5.4 13.2476 0.5970FLOOD Hydro-Brake® MH-0001 3.2
360 minute winter MH-0003 288 21.842 0.642 6.1 22.8316 0.0000SURCHARGED Hydro-Brake® MH-0002 2.0
360 minute winter MH-0004 288 21.842 0.342 0.9 0.3872 0.0000SURCHARGED PN004 MH-0003 0.9 0.165 0.012 0.6301
360 minute winter MH-0005 352 22.518 0.718 6.6 40.1991 0.0000SURCHARGED Hydro-Brake® MH-0004 0.9
360 minute winter Node 3 296 20.777 0.227 3.5 0.2564 0.0000OK Swale 2 Node 2 3.4 0.215 0.068 2.0251
Flow+ v7.0 Design Report: 30 year 480 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 30 year 480 minute summer. 720 minute analysis at 8 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
480 minute summer Outlet 360 20.746 0.346 3.3 0.3912 0.0000OK Orifice 3.3 119.1
480 minute summer Node 2 360 20.746 0.260 6.1 16.7979 0.0000OK Swale 1 Outlet 3.3 0.246 0.081 4.2178
480 minute summer MH-0001 360 20.747 0.137 3.2 0.1550 0.0000OK PN001 Node 2 3.2 0.471 0.094 0.9311
480 minute summer MH-0002 320 21.424 0.714 5.6 11.0365 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
480 minute summer MH-0003 328 21.812 0.612 6.4 17.9201 0.0000SURCHARGED Hydro-Brake® MH-0002 2.0
480 minute summer MH-0004 328 21.812 0.312 0.8 0.3525 0.0000SURCHARGED PN004 MH-0003 1.4 0.221 0.020 0.6301
480 minute summer MH-0005 392 22.474 0.674 7.0 31.9644 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
480 minute summer Node 3 360 20.746 0.196 3.7 0.2221 0.0000OK Swale 2 Node 2 3.5 0.159 0.072 1.8160
Flow+ v7.0 Design Report: 30 year 480 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 30 year 480 minute winter. 720 minute analysis at 8 minute timestep. Mass balance: 99.86%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
480 minute winter Outlet 368 20.768 0.368 3.4 0.4161 0.0000OK Orifice 3.4 123.7
480 minute winter Node 2 368 20.769 0.283 5.3 19.2926 0.0000OK Swale 1 Outlet 3.4 0.217 0.084 4.3382
480 minute winter MH-0001 368 20.769 0.159 3.2 0.1802 0.0000OK PN001 Node 2 3.2 0.395 0.094 0.9988
480 minute winter MH-0002 344 21.456 0.746 4.7 12.5869 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
480 minute winter MH-0003 360 21.831 0.631 5.0 21.0024 0.0000SURCHARGED Hydro-Brake® MH-0002 2.0
480 minute winter MH-0004 360 21.831 0.331 0.9 0.3743 0.0000SURCHARGED PN004 MH-0003 0.9 0.162 0.012 0.6301
480 minute winter MH-0005 456 22.506 0.706 5.2 37.9871 0.0000SURCHARGED Hydro-Brake® MH-0004 0.9
480 minute winter Node 3 368 20.769 0.219 2.8 0.2472 0.0000OK Swale 2 Node 2 2.7 0.180 0.055 1.9754
Flow+ v7.0 Design Report: 30 year 600 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 30 year 600 minute summer. 840 minute analysis at 15 minute timestep. Mass balance: 99.98%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
600 minute summer Outlet 435 20.742 0.342 3.3 0.3868 0.0000OK Orifice 3.3 133.4
600 minute summer Node 2 435 20.743 0.257 5.4 16.3782 0.0000OK Swale 1 Outlet 3.3 0.257 0.081 4.1932
600 minute summer MH-0001 435 20.743 0.133 3.2 0.1506 0.0000OK PN001 Node 2 3.2 0.362 0.094 0.9189
600 minute summer MH-0002 390 21.403 0.693 4.9 9.9945 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
600 minute summer MH-0003 405 21.803 0.603 5.3 16.5199 0.0000SURCHARGED Hydro-Brake® MH-0002 2.0
600 minute summer MH-0004 405 21.803 0.303 0.8 0.3425 0.0000SURCHARGED PN004 MH-0003 1.4 0.230 0.019 0.6301
600 minute summer MH-0005 465 22.467 0.667 5.7 30.7833 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
600 minute summer Node 3 435 20.743 0.193 3.0 0.2178 0.0000OK Swale 2 Node 2 2.9 0.103 0.058 1.7859
Flow+ v7.0 Design Report: 30 year 600 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 30 year 600 minute winter. 840 minute analysis at 15 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
600 minute winter Outlet 450 20.764 0.364 3.4 0.4122 0.0000OK Orifice 3.4 140.5
600 minute winter Node 2 450 20.765 0.279 4.8 18.8864 0.0000OK Swale 1 Outlet 3.4 0.203 0.084 4.3220
600 minute winter MH-0001 450 20.766 0.156 3.2 0.1761 0.0000OK PN001 Node 2 3.2 0.376 0.093 0.9883
600 minute winter MH-0002 435 21.428 0.718 4.2 11.1985 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
600 minute winter MH-0003 435 21.818 0.618 4.3 18.9967 0.0000SURCHARGED Hydro-Brake® MH-0002 2.0
600 minute winter MH-0004 435 21.818 0.318 0.9 0.3601 0.0000SURCHARGED PN004 MH-0003 1.3 0.149 0.018 0.6301
600 minute winter MH-0005 495 22.495 0.695 4.3 35.9464 0.0000SURCHARGED Hydro-Brake® MH-0004 0.9
600 minute winter Node 3 450 20.765 0.215 2.3 0.2432 0.0000OK Swale 2 Node 2 2.2 0.123 0.045 1.9520
Flow+ v7.0 Design Report: 30 year 720 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 30 year 720 minute summer. 960 minute analysis at 15 minute timestep. Mass balance: 99.97%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
720 minute summer Outlet 495 20.738 0.338 3.3 0.3825 0.0000OK Orifice 3.3 146.3
720 minute summer Node 2 495 20.739 0.253 5.2 15.9667 0.0000OK Swale 1 Outlet 3.3 0.230 0.080 4.1676
720 minute summer MH-0001 495 20.739 0.129 3.2 0.1463 0.0000OK PN001 Node 2 3.2 0.362 0.094 0.9067
720 minute summer MH-0002 465 21.383 0.673 4.6 9.0325 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
720 minute summer MH-0003 465 21.795 0.595 4.8 15.2134 0.0000OK Hydro-Brake® MH-0002 2.0
720 minute summer MH-0004 465 21.795 0.295 0.8 0.3333 0.0000SURCHARGED PN004 MH-0003 1.4 0.230 0.019 0.6301
720 minute summer MH-0005 525 22.459 0.659 5.0 29.2045 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
720 minute summer Node 3 495 20.739 0.189 2.7 0.2134 0.0000OK Swale 2 Node 2 2.6 0.103 0.053 1.7551
Flow+ v7.0 Design Report: 30 year 720 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 30 year 720 minute winter. 960 minute analysis at 15 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
720 minute winter Outlet 510 20.758 0.358 3.4 0.4053 0.0000OK Orifice 3.4 156.0
720 minute winter Node 2 510 20.759 0.273 4.7 18.1967 0.0000OK Swale 1 Outlet 3.4 0.186 0.083 4.2914
720 minute winter MH-0001 510 20.760 0.150 3.2 0.1693 0.0000OK PN001 Node 2 3.2 0.359 0.094 0.9700
720 minute winter MH-0002 510 21.390 0.680 3.9 9.3941 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
720 minute winter MH-0003 510 21.807 0.607 3.8 17.2002 0.0000SURCHARGED Hydro-Brake® MH-0002 2.0
720 minute winter MH-0004 510 21.807 0.307 0.8 0.3474 0.0000SURCHARGED PN004 MH-0003 1.4 0.230 0.020 0.6301
720 minute winter MH-0005 570 22.487 0.687 3.8 34.4886 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
720 minute winter Node 3 510 20.759 0.209 2.0 0.2364 0.0000OK Swale 2 Node 2 1.9 0.111 0.039 1.9101
Flow+ v7.0 Design Report: 30 year 960 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 30 year 960 minute summer. 1200 minute analysis at 15 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
960 minute summer Outlet 615 20.730 0.330 3.2 0.3737 0.0000OK Orifice 3.2 162.2
960 minute summer Node 2 615 20.731 0.245 4.8 15.1429 0.0000OK Swale 1 Outlet 3.2 0.216 0.079 4.1131
960 minute summer MH-0001 615 20.732 0.122 3.2 0.1375 0.0000OK PN001 Node 2 3.2 0.362 0.094 0.8817
960 minute summer MH-0002 600 21.337 0.627 4.0 6.7988 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
960 minute summer MH-0003 600 21.778 0.578 4.0 12.5475 0.0000OK Hydro-Brake® MH-0002 2.0
960 minute summer MH-0004 600 21.778 0.278 0.8 0.3144 0.0000SURCHARGED PN004 MH-0003 1.2 0.230 0.017 0.6301
960 minute summer MH-0005 660 22.450 0.650 4.0 27.4806 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
960 minute summer Node 3 615 20.731 0.181 2.1 0.2046 0.0000OK Swale 2 Node 2 2.0 0.103 0.041 1.6911
Flow+ v7.0 Design Report: 30 year 960 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 30 year 960 minute winter. 1200 minute analysis at 15 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
960 minute winter Outlet 720 20.771 0.371 3.4 0.4200 0.0000OK Orifice 3.4 179.0
960 minute winter Node 2 720 20.772 0.286 4.6 19.6918 0.0000OK Swale 1 Outlet 3.4 0.197 0.084 4.3521
960 minute winter MH-0001 720 20.772 0.162 3.2 0.1836 0.0000OK PN001 Node 2 3.1 0.365 0.092 1.0076
960 minute winter MH-0002 600 21.270 0.560 3.4 3.5784 0.0000SURCHARGED Hydro-Brake® MH-0001 3.2
960 minute winter MH-0003 660 21.788 0.588 3.2 14.1289 0.0000OK Hydro-Brake® MH-0002 2.0
960 minute winter MH-0004 660 21.788 0.288 0.8 0.3256 0.0000SURCHARGED PN004 MH-0003 1.4 0.230 0.019 0.6301
960 minute winter MH-0005 720 22.472 0.672 3.0 31.7231 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
960 minute winter Node 3 720 20.772 0.222 1.6 0.2511 0.0000OK Swale 2 Node 2 1.5 0.106 0.031 1.9970
Flow+ v7.0 Design Report: 30 year 1440 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 30 year 1440 minute summer. 1680 minute analysis at 30 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
1440 minute summer Outlet 870 20.741 0.341 3.3 0.3862 0.0000OK Orifice 3.3 187.3
1440 minute summer Node 2 870 20.742 0.256 4.5 16.3175 0.0000OK Swale 1 Outlet 3.3 0.165 0.081 4.1894
1440 minute summer MH-0001 870 20.743 0.133 3.2 0.1502 0.0000OK PN001 Node 2 3.2 0.364 0.093 0.9177
1440 minute summer MH-0002 810 21.229 0.519 3.3 1.5573 0.0000SURCHARGED Hydro-Brake® MH-0001 3.2
1440 minute summer MH-0003 870 21.758 0.558 3.1 9.3122 0.0000OK Hydro-Brake® MH-0002 2.0
1440 minute summer MH-0004 870 21.758 0.258 0.8 0.2915 0.0000SURCHARGED PN004 MH-0003 1.3 0.229 0.018 0.6301
1440 minute summer MH-0005 930 22.430 0.630 2.9 23.9051 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
1440 minute summer Node 3 870 20.742 0.192 1.5 0.2171 0.0000OK Swale 2 Node 2 1.4 0.100 0.029 1.7814
Flow+ v7.0 Design Report: 30 year 1440 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 30 year 1440 minute winter. 1680 minute analysis at 30 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
1440 minute winter Outlet 930 20.740 0.340 3.3 0.3844 0.0000OK Orifice 3.3 204.8
1440 minute winter Node 2 930 20.740 0.254 4.0 16.1412 0.0000OK Swale 1 Outlet 3.3 0.193 0.081 4.1785
1440 minute winter MH-0001 930 20.741 0.131 3.0 0.1480 0.0000OK PN001 Node 2 2.9 0.355 0.086 0.9115
1440 minute winter MH-0002 690 20.847 0.137 3.0 0.2414 0.0000OK Hydro-Brake® MH-0001 3.0
1440 minute winter MH-0003 930 21.744 0.544 2.5 7.1651 0.0000OK Hydro-Brake® MH-0002 2.0
1440 minute winter MH-0004 930 21.744 0.244 0.8 0.2763 0.0000SURCHARGED PN004 MH-0003 1.2 0.229 0.017 0.6301
1440 minute winter MH-0005 1020 22.440 0.640 2.1 25.7494 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
1440 minute winter Node 3 930 20.740 0.190 1.1 0.2153 0.0000OK Swale 2 Node 2 1.1 0.102 0.022 1.7683
Flow+ v7.0 Design Report: 100 year 15 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 100 year 15 minute summer. 255 minute analysis at 1 minute timestep. Mass balance: 99.25%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
15 minute summer Outlet 18 20.687 0.287 14.1 0.3245 0.0000OK Orifice 3.0 43.0
15 minute summer Node 2 22 20.680 0.194 36.1 10.1624 0.0000OK Swale 1 Outlet 14.1 0.459 0.346 3.6472
15 minute summer MH-0001 19 20.683 0.073 3.2 0.0830 0.0000OK PN001 Node 2 3.7 0.672 0.109 0.6798
15 minute summer MH-0002 16 21.600 0.890 36.6 13.2476 0.8614FLOOD Hydro-Brake® MH-0001 3.2
15 minute summer MH-0003 19 21.825 0.625 53.3 20.1012 0.0000SURCHARGED Hydro-Brake® MH-0002 2.0
15 minute summer MH-0004 20 21.827 0.327 8.2 0.3694 0.0000SURCHARGED PN004 MH-0003 -7.5 -0.255 -0.105 0.6301
15 minute summer MH-0005 20 22.454 0.654 65.3 28.2809 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
15 minute summer Node 3 11 20.728 0.178 34.7 0.2010 0.0000OK Swale 2 Node 2 33.4 1.032 0.680 1.2390
Flow+ v7.0 Design Report: 100 year 15 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 100 year 15 minute winter. 255 minute analysis at 1 minute timestep. Mass balance: 99.76%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
15 minute winter Outlet 17 20.709 0.309 14.8 0.3498 0.0000OK Orifice 3.1 43.9
15 minute winter Node 2 21 20.693 0.207 37.9 11.4128 0.0000OK Swale 1 Outlet 14.8 0.453 0.364 3.8065
15 minute winter MH-0001 21 20.696 0.086 3.2 0.0977 0.0000OK PN001 Node 2 4.0 0.667 0.118 0.7480
15 minute winter MH-0002 14 21.600 0.890 38.4 13.2476 3.0868FLOOD Hydro-Brake® MH-0001 3.2
15 minute winter MH-0003 19 21.842 0.642 54.6 22.8076 0.0000SURCHARGED Hydro-Brake® MH-0002 2.0
15 minute winter MH-0004 19 21.843 0.343 8.4 0.3878 0.0000SURCHARGED PN004 MH-0003 -7.7 -0.226 -0.107 0.6301
15 minute winter MH-0005 20 22.467 0.667 68.6 30.7902 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
15 minute winter Node 3 11 20.733 0.183 36.4 0.2067 0.0000OK Swale 2 Node 2 35.2 1.012 0.716 1.3723
Flow+ v7.0 Design Report: 100 year 30 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 100 year 30 minute summer. 270 minute analysis at 1 minute timestep. Mass balance: 99.84%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
30 minute summer Outlet 35 20.716 0.316 7.2 0.3575 0.0000OK Orifice 3.2 47.5
30 minute summer Node 2 35 20.717 0.231 33.3 13.6668 0.0000OK Swale 1 Outlet 7.2 0.394 0.176 4.0045
30 minute summer MH-0001 34 20.718 0.108 3.2 0.1218 0.0000OK PN001 Node 2 3.4 0.698 0.099 0.8372
30 minute summer MH-0002 21 21.600 0.890 32.5 13.2476 3.8743FLOOD Hydro-Brake® MH-0001 3.2
30 minute summer MH-0003 34 21.860 0.660 47.0 25.6055 0.0000SURCHARGED Hydro-Brake® MH-0002 2.0
30 minute summer MH-0004 34 21.860 0.360 2.8 0.4070 0.0000SURCHARGED PN004 MH-0003 2.4 0.122 0.034 0.6301
30 minute summer MH-0005 34 22.489 0.689 57.7 34.8325 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
30 minute summer Node 3 18 20.724 0.174 30.6 0.1969 0.0000OK Swale 2 Node 2 30.5 0.821 0.619 1.5755
Flow+ v7.0 Design Report: 100 year 30 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 100 year 30 minute winter. 270 minute analysis at 1 minute timestep. Mass balance: 99.86%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
30 minute winter Outlet 34 20.734 0.334 7.9 0.3776 0.0000OK Orifice 3.3 48.6
30 minute winter Node 2 35 20.734 0.248 30.5 15.4143 0.0000OK Swale 1 Outlet 7.9 0.380 0.195 4.1315
30 minute winter MH-0001 34 20.735 0.125 3.2 0.1410 0.0000OK PN001 Node 2 3.5 0.688 0.104 0.8917
30 minute winter MH-0002 20 21.600 0.890 29.7 13.2476 6.6244FLOOD Hydro-Brake® MH-0001 3.2
30 minute winter MH-0003 33 21.882 0.682 42.1 29.1065 0.0000SURCHARGED Hydro-Brake® MH-0002 2.0
30 minute winter MH-0004 33 21.882 0.382 5.0 0.4319 0.0000SURCHARGED PN004 MH-0003 -4.3 0.138 -0.060 0.6301
30 minute winter MH-0005 34 22.513 0.713 52.2 39.2827 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
30 minute winter Node 3 36 20.734 0.184 27.7 0.2083 0.0000OK Swale 2 Node 2 27.7 0.755 0.562 1.7148
Flow+ v7.0 Design Report: 100 year 60 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 100 year 60 minute summer. 300 minute analysis at 1 minute timestep. Mass balance: 99.84%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
60 minute summer Outlet 64 20.753 0.353 4.7 0.3988 0.0000OK Orifice 3.3 54.5
60 minute summer Node 2 64 20.753 0.267 24.7 17.5369 0.0000OK Swale 1 Outlet 4.7 0.362 0.115 4.2585
60 minute summer MH-0001 63 20.754 0.144 3.2 0.1627 0.0000OK PN001 Node 2 3.2 0.680 0.095 0.9522
60 minute summer MH-0002 36 21.600 0.890 24.4 13.2476 7.2603FLOOD Hydro-Brake® MH-0001 3.2
60 minute summer MH-0003 63 21.888 0.688 34.5 30.0695 0.0000SURCHARGED Hydro-Brake® MH-0002 2.0
60 minute summer MH-0004 63 21.888 0.388 2.4 0.4385 0.0000SURCHARGED PN004 MH-0003 2.3 0.174 0.032 0.6301
60 minute summer MH-0005 64 22.526 0.726 42.1 41.6273 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
60 minute summer Node 3 65 20.753 0.203 22.4 0.2297 0.0000OK Swale 2 Node 2 22.2 0.592 0.451 1.8671
Flow+ v7.0 Design Report: 100 year 60 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 100 year 60 minute winter. 300 minute analysis at 1 minute timestep. Mass balance: 99.83%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
60 minute winter Outlet 63 20.771 0.371 5.1 0.4201 0.0000OK Orifice 3.4 55.7
60 minute winter Node 2 63 20.772 0.286 20.2 19.7018 0.0000OK Swale 1 Outlet 5.1 0.363 0.124 4.3524
60 minute winter MH-0001 62 20.773 0.163 3.2 0.1842 0.0000OK PN001 Node 2 3.3 0.676 0.096 1.0092
60 minute winter MH-0002 35 21.600 0.890 20.1 13.2476 10.2360FLOOD Hydro-Brake® MH-0001 3.2
60 minute winter MH-0003 62 21.915 0.715 28.2 34.4246 0.0000SURCHARGED Hydro-Brake® MH-0002 2.0
60 minute winter MH-0004 62 21.915 0.415 2.8 0.4693 0.0000SURCHARGED PN004 MH-0003 -2.1 0.183 -0.029 0.6301
60 minute winter MH-0005 63 22.558 0.758 34.1 47.6209 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
60 minute winter Node 3 64 20.772 0.222 18.1 0.2510 0.0000OK Swale 2 Node 2 17.6 0.510 0.358 1.9966
Flow+ v7.0 Design Report: 100 year 120 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 100 year 120 minute summer. 360 minute analysis at 2 minute timestep. Mass balance: 99.81%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
120 minute summer Outlet 124 20.786 0.386 3.8 0.4361 0.0000OK Orifice 3.5 66.7
120 minute summer Node 2 124 20.786 0.300 15.9 21.3960 0.0000FLOOD RISK Swale 1 Outlet 3.8 0.326 0.094 4.3870
120 minute summer MH-0001 124 20.787 0.177 3.2 0.2003 0.0000OK PN001 Node 2 3.2 0.634 0.094 1.0486
120 minute summer MH-0002 68 21.600 0.890 16.1 13.2476 7.0721FLOOD Hydro-Brake® MH-0001 3.2
120 minute summer MH-0003 122 21.903 0.703 21.9 32.5140 0.0000SURCHARGED Hydro-Brake® MH-0002 2.0
120 minute summer MH-0004 122 21.903 0.403 1.0 0.4558 0.0000SURCHARGED PN004 MH-0003 1.1 0.204 0.015 0.6301
120 minute summer MH-0005 124 22.554 0.754 26.6 47.0053 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
120 minute summer Node 3 124 20.786 0.236 14.1 0.2669 0.0000OK Swale 2 Node 2 13.5 0.394 0.274 2.0717
Flow+ v7.0 Design Report: 100 year 120 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 100 year 120 minute winter. 360 minute analysis at 2 minute timestep. Mass balance: 99.87%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
120 minute winter Outlet 108 20.800 0.400 5.4 0.4524 0.8687FLOOD Orifice 3.6 67.7
120 minute winter Node 2 112 20.802 0.316 13.0 23.2868 0.0000FLOOD RISK Swale 1 Outlet 5.4 0.337 0.131 4.3885
120 minute winter MH-0001 112 20.803 0.193 3.2 0.2181 0.0000OK PN001 Node 2 3.2 0.628 0.094 1.0874
120 minute winter MH-0002 66 21.600 0.890 12.9 13.2476 10.7537FLOOD Hydro-Brake® MH-0001 3.2
120 minute winter MH-0003 120 21.937 0.737 17.0 37.9045 0.0000SURCHARGED Hydro-Brake® MH-0002 2.0
120 minute winter MH-0004 120 21.937 0.437 1.5 0.4939 0.0000SURCHARGED PN004 MH-0003 1.3 0.176 0.018 0.6301
120 minute winter MH-0005 122 22.590 0.790 20.5 53.6172 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
120 minute winter Node 3 110 20.802 0.252 10.9 0.2850 0.0000OK Swale 2 Node 2 10.4 0.368 0.211 2.1318
Flow+ v7.0 Design Report: 100 year 180 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 100 year 180 minute summer. 420 minute analysis at 4 minute timestep. Mass balance: 99.81%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
180 minute summer Outlet 172 20.800 0.400 4.2 0.4524 0.2549FLOOD Orifice 3.6 78.1
180 minute summer Node 2 176 20.801 0.315 12.4 23.1822 0.0000FLOOD RISK Swale 1 Outlet 4.2 0.298 0.103 4.3885
180 minute summer MH-0001 176 20.802 0.192 3.2 0.2171 0.0000OK PN001 Node 2 3.2 0.600 0.094 1.0853
180 minute summer MH-0002 104 21.600 0.890 12.3 13.2476 7.4526FLOOD Hydro-Brake® MH-0001 3.2
180 minute summer MH-0003 180 21.902 0.702 16.1 32.3948 0.0000SURCHARGED Hydro-Brake® MH-0002 2.0
180 minute summer MH-0004 180 21.902 0.402 0.8 0.4549 0.0000SURCHARGED PN004 MH-0003 1.0 0.138 0.013 0.6301
180 minute summer MH-0005 184 22.565 0.765 19.4 48.8914 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
180 minute summer Node 3 176 20.801 0.251 10.3 0.2840 0.0000OK Swale 2 Node 2 9.8 0.332 0.200 2.1286
Flow+ v7.0 Design Report: 100 year 180 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 100 year 180 minute winter. 420 minute analysis at 4 minute timestep. Mass balance: 99.83%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
180 minute winter Outlet 128 20.800 0.400 6.3 0.4524 3.4081FLOOD Orifice 3.6 78.3
180 minute winter Node 2 132 20.803 0.317 10.2 23.4042 0.0000FLOOD RISK Swale 1 Outlet 6.3 0.309 0.155 4.3885
180 minute winter MH-0001 132 20.804 0.194 3.2 0.2192 0.0000OK PN001 Node 2 3.2 0.562 0.094 1.0896
180 minute winter MH-0002 100 21.600 0.890 9.9 13.2476 10.0230FLOOD Hydro-Brake® MH-0001 3.2
180 minute winter MH-0003 180 21.939 0.739 12.6 38.2110 0.0000SURCHARGED Hydro-Brake® MH-0002 2.0
180 minute winter MH-0004 180 21.939 0.439 0.8 0.4961 0.0000SURCHARGED PN004 MH-0003 1.0 0.202 0.014 0.6301
180 minute winter MH-0005 180 22.603 0.803 14.9 56.0289 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
180 minute winter Node 3 132 20.803 0.253 7.9 0.2861 0.0000OK Swale 2 Node 2 7.6 0.342 0.154 2.1351
Flow+ v7.0 Design Report: 100 year 240 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 100 year 240 minute summer. 480 minute analysis at 4 minute timestep. Mass balance: 99.81%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
240 minute summer Outlet 188 20.800 0.400 4.2 0.4524 0.9142FLOOD Orifice 3.6 88.9
240 minute summer Node 2 188 20.801 0.315 10.7 23.2079 0.0000FLOOD RISK Swale 1 Outlet 4.2 0.310 0.104 4.3885
240 minute summer MH-0001 188 20.802 0.192 3.2 0.2174 0.0000OK PN001 Node 2 3.2 0.547 0.094 1.0858
240 minute summer MH-0002 136 21.600 0.890 10.5 13.2476 5.2414FLOOD Hydro-Brake® MH-0001 3.2
240 minute summer MH-0003 236 21.894 0.694 13.5 31.1033 0.0000SURCHARGED Hydro-Brake® MH-0002 2.0
240 minute summer MH-0004 236 21.894 0.394 0.9 0.4458 0.0000SURCHARGED PN004 MH-0003 0.9 0.161 0.013 0.6301
240 minute summer MH-0005 244 22.567 0.767 16.0 49.4107 0.0000SURCHARGED Hydro-Brake® MH-0004 0.9
240 minute summer Node 3 188 20.801 0.251 8.5 0.2842 0.0000OK Swale 2 Node 2 8.1 0.334 0.165 2.1293
Flow+ v7.0 Design Report: 100 year 240 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 100 year 240 minute winter. 480 minute analysis at 4 minute timestep. Mass balance: 99.84%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
240 minute winter Outlet 160 20.800 0.400 7.0 0.4524 4.7548FLOOD Orifice 3.6 89.1
240 minute winter Node 2 160 20.803 0.317 8.8 23.4118 0.0000FLOOD RISK Swale 1 Outlet 7.0 0.290 0.172 4.3885
240 minute winter MH-0001 160 20.804 0.194 3.2 0.2193 0.0000OK PN001 Node 2 3.2 0.552 0.094 1.0897
240 minute winter MH-0002 132 21.600 0.890 8.3 13.2476 9.0759FLOOD Hydro-Brake® MH-0001 3.2
240 minute winter MH-0003 236 21.935 0.735 10.3 37.6247 0.0000SURCHARGED Hydro-Brake® MH-0002 2.0
240 minute winter MH-0004 236 21.935 0.435 0.9 0.4919 0.0000SURCHARGED PN004 MH-0003 0.9 0.221 0.012 0.6301
240 minute winter MH-0005 240 22.609 0.809 11.9 57.1866 0.0000SURCHARGED Hydro-Brake® MH-0004 0.9
240 minute winter Node 3 160 20.803 0.253 6.3 0.2863 0.0000OK Swale 2 Node 2 6.0 0.290 0.123 2.1357
Flow+ v7.0 Design Report: 100 year 360 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 100 year 360 minute summer. 600 minute analysis at 8 minute timestep. Mass balance: 99.82%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
360 minute summer Outlet 256 20.800 0.400 4.4 0.4524 0.8680FLOOD Orifice 3.6 109.0
360 minute summer Node 2 256 20.801 0.315 8.6 23.1840 0.0000FLOOD RISK Swale 1 Outlet 4.4 0.252 0.108 4.3885
360 minute summer MH-0001 256 20.802 0.192 3.2 0.2172 0.0000OK PN001 Node 2 3.2 0.492 0.093 1.0854
360 minute summer MH-0002 208 21.600 0.890 8.3 13.2476 3.3437FLOOD Hydro-Brake® MH-0001 3.2
360 minute summer MH-0003 288 21.879 0.679 10.2 28.7463 0.0000SURCHARGED Hydro-Brake® MH-0002 2.0
360 minute summer MH-0004 288 21.879 0.379 0.9 0.4291 0.0000SURCHARGED PN004 MH-0003 0.9 0.127 0.012 0.6301
360 minute summer MH-0005 360 22.562 0.762 11.8 48.3290 0.0000SURCHARGED Hydro-Brake® MH-0004 0.9
360 minute summer Node 3 256 20.801 0.251 6.3 0.2840 0.0000OK Swale 2 Node 2 6.0 0.166 0.123 2.1286
Flow+ v7.0 Design Report: 100 year 360 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 100 year 360 minute winter. 600 minute analysis at 8 minute timestep. Mass balance: 99.85%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
360 minute winter Outlet 232 20.800 0.400 6.3 0.4524 4.7289FLOOD Orifice 3.6 110.3
360 minute winter Node 2 232 20.802 0.316 7.1 23.2804 0.0000FLOOD RISK Swale 1 Outlet 6.3 0.271 0.155 4.3885
360 minute winter MH-0001 232 20.803 0.193 3.2 0.2181 0.0000OK PN001 Node 2 3.2 0.505 0.094 1.0872
360 minute winter MH-0002 200 21.600 0.890 6.6 13.2476 7.4265FLOOD Hydro-Brake® MH-0001 3.2
360 minute winter MH-0003 336 21.918 0.718 7.7 34.8505 0.0000SURCHARGED Hydro-Brake® MH-0002 2.0
360 minute winter MH-0004 336 21.918 0.418 0.9 0.4723 0.0000SURCHARGED PN004 MH-0003 0.9 0.154 0.012 0.6301
360 minute winter MH-0005 352 22.606 0.806 8.6 56.5902 0.0000SURCHARGED Hydro-Brake® MH-0004 0.9
360 minute winter Node 3 232 20.802 0.252 4.6 0.2850 0.0000OK Swale 2 Node 2 4.4 0.225 0.090 2.1317
Flow+ v7.0 Design Report: 100 year 480 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 100 year 480 minute summer. 720 minute analysis at 8 minute timestep. Mass balance: 99.86%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
480 minute summer Outlet 336 20.800 0.400 4.1 0.4524 0.3055FLOOD Orifice 3.6 128.7
480 minute summer Node 2 336 20.801 0.315 7.2 23.1658 0.0000FLOOD RISK Swale 1 Outlet 4.1 0.236 0.100 4.3885
480 minute summer MH-0001 336 20.802 0.192 3.2 0.2170 0.0000OK PN001 Node 2 3.2 0.482 0.094 1.0849
480 minute summer MH-0002 272 21.600 0.890 6.8 13.2476 3.1111FLOOD Hydro-Brake® MH-0001 3.2
480 minute summer MH-0003 352 21.870 0.670 8.1 27.1836 0.0000SURCHARGED Hydro-Brake® MH-0002 2.0
480 minute summer MH-0004 352 21.870 0.370 0.9 0.4180 0.0000SURCHARGED PN004 MH-0003 0.9 0.145 0.012 0.6301
480 minute summer MH-0005 448 22.551 0.751 9.1 46.3960 0.0000SURCHARGED Hydro-Brake® MH-0004 0.9
480 minute summer Node 3 336 20.801 0.251 4.8 0.2838 0.0000OK Swale 2 Node 2 4.6 0.161 0.094 2.1281
Flow+ v7.0 Design Report: 100 year 480 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 100 year 480 minute winter. 720 minute analysis at 8 minute timestep. Mass balance: 99.87%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
480 minute winter Outlet 296 20.800 0.400 5.5 0.4524 4.3192FLOOD Orifice 3.6 130.4
480 minute winter Node 2 296 20.802 0.316 6.2 23.2607 0.0000FLOOD RISK Swale 1 Outlet 5.5 0.256 0.134 4.3885
480 minute winter MH-0001 296 20.803 0.193 3.2 0.2179 0.0000OK PN001 Node 2 3.2 0.460 0.094 1.0868
480 minute winter MH-0002 272 21.600 0.890 5.6 13.2476 5.4073FLOOD Hydro-Brake® MH-0001 3.2
480 minute winter MH-0003 376 21.900 0.700 6.2 31.9934 0.0000SURCHARGED Hydro-Brake® MH-0002 2.0
480 minute winter MH-0004 376 21.900 0.400 0.9 0.4521 0.0000SURCHARGED PN004 MH-0003 0.9 0.168 0.012 0.6301
480 minute winter MH-0005 464 22.600 0.800 6.8 55.3910 0.0000SURCHARGED Hydro-Brake® MH-0004 0.9
480 minute winter Node 3 296 20.802 0.252 3.6 0.2848 0.0000OK Swale 2 Node 2 3.5 0.197 0.071 2.1312
Flow+ v7.0 Design Report: 100 year 600 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 100 year 600 minute summer. 840 minute analysis at 15 minute timestep. Mass balance: 99.88%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
600 minute summer Outlet 435 20.798 0.398 3.6 0.4504 0.0000OK Orifice 3.6 146.3
600 minute summer Node 2 435 20.799 0.313 6.4 22.9302 0.0000FLOOD RISK Swale 1 Outlet 3.6 0.267 0.088 4.3885
600 minute summer MH-0001 435 20.800 0.190 3.2 0.2146 0.0000OK PN001 Node 2 3.2 0.386 0.094 1.0802
600 minute summer MH-0002 360 21.600 0.890 5.9 13.2476 1.3306FLOOD Hydro-Brake® MH-0001 3.2
600 minute summer MH-0003 420 21.858 0.658 6.6 25.3056 0.0000SURCHARGED Hydro-Brake® MH-0002 2.0
600 minute summer MH-0004 420 21.858 0.358 0.9 0.4047 0.0000SURCHARGED PN004 MH-0003 0.9 0.144 0.012 0.6301
600 minute summer MH-0005 510 22.539 0.739 7.3 44.1633 0.0000SURCHARGED Hydro-Brake® MH-0004 0.9
600 minute summer Node 3 435 20.799 0.249 3.9 0.2816 0.0000OK Swale 2 Node 2 3.7 0.112 0.076 2.1210
Flow+ v7.0 Design Report: 100 year 600 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 100 year 600 minute winter. 840 minute analysis at 15 minute timestep. Mass balance: 99.89%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
600 minute winter Outlet 390 20.800 0.400 4.7 0.4524 3.0252FLOOD Orifice 3.6 149.1
600 minute winter Node 2 390 20.801 0.315 5.6 23.2131 0.0000FLOOD RISK Swale 1 Outlet 4.7 0.218 0.115 4.3885
600 minute winter MH-0001 390 20.802 0.192 3.2 0.2174 0.0000OK PN001 Node 2 3.2 0.395 0.094 1.0859
600 minute winter MH-0002 360 21.600 0.890 5.0 13.2476 3.1216FLOOD Hydro-Brake® MH-0001 3.2
600 minute winter MH-0003 450 21.887 0.687 5.3 30.0355 0.0000SURCHARGED Hydro-Brake® MH-0002 2.0
600 minute winter MH-0004 450 21.887 0.387 0.9 0.4382 0.0000SURCHARGED PN004 MH-0003 0.9 0.145 0.012 0.6301
600 minute winter MH-0005 570 22.588 0.788 5.6 53.2394 0.0000SURCHARGED Hydro-Brake® MH-0004 0.9
600 minute winter Node 3 390 20.801 0.251 3.0 0.2843 0.0000OK Swale 2 Node 2 2.9 0.119 0.059 2.1296
Flow+ v7.0 Design Report: 100 year 720 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 100 year 720 minute summer. 960 minute analysis at 15 minute timestep. Mass balance: 99.90%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
720 minute summer Outlet 495 20.791 0.391 3.5 0.4420 0.0000OK Orifice 3.5 162.5
720 minute summer Node 2 495 20.792 0.306 5.9 22.0271 0.0000FLOOD RISK Swale 1 Outlet 3.5 0.265 0.087 4.3885
720 minute summer MH-0001 495 20.792 0.182 3.2 0.2062 0.0000OK PN001 Node 2 3.2 0.370 0.094 1.0619
720 minute summer MH-0002 435 21.600 0.890 5.3 13.2476 0.6489FLOOD Hydro-Brake® MH-0001 3.2
720 minute summer MH-0003 495 21.849 0.649 5.9 23.8903 0.0000SURCHARGED Hydro-Brake® MH-0002 2.0
720 minute summer MH-0004 495 21.849 0.349 0.9 0.3947 0.0000SURCHARGED PN004 MH-0003 0.9 0.145 0.012 0.6301
720 minute summer MH-0005 555 22.533 0.733 6.5 43.0561 0.0000SURCHARGED Hydro-Brake® MH-0004 0.9
720 minute summer Node 3 495 20.792 0.242 3.4 0.2732 0.0000OK Swale 2 Node 2 3.3 0.101 0.066 2.0935
Flow+ v7.0 Design Report: 100 year 720 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 100 year 720 minute winter. 960 minute analysis at 15 minute timestep. Mass balance: 99.90%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
720 minute winter Outlet 465 20.800 0.400 4.5 0.4524 2.5962FLOOD Orifice 3.6 168.7
720 minute winter Node 2 480 20.801 0.315 5.2 23.1819 0.0000FLOOD RISK Swale 1 Outlet 4.5 0.203 0.112 4.3885
720 minute winter MH-0001 480 20.802 0.192 3.2 0.2171 0.0000OK PN001 Node 2 3.2 0.376 0.094 1.0853
720 minute winter MH-0002 435 21.600 0.890 4.5 13.2476 2.0244FLOOD Hydro-Brake® MH-0001 3.2
720 minute winter MH-0003 525 21.874 0.674 4.7 27.9670 0.0000SURCHARGED Hydro-Brake® MH-0002 2.0
720 minute winter MH-0004 525 21.875 0.375 0.9 0.4236 0.0000SURCHARGED PN004 MH-0003 0.9 0.149 0.012 0.6301
720 minute winter MH-0005 645 22.576 0.776 4.9 51.0572 0.0000SURCHARGED Hydro-Brake® MH-0004 0.9
720 minute winter Node 3 480 20.801 0.251 2.6 0.2840 0.0000OK Swale 2 Node 2 2.5 0.123 0.051 2.1286
Flow+ v7.0 Design Report: 100 year 960 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 100 year 960 minute summer. 1200 minute analysis at 15 minute timestep. Mass balance: 99.98%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
960 minute summer Outlet 630 20.778 0.378 3.5 0.4278 0.0000OK Orifice 3.5 192.7
960 minute summer Node 2 630 20.779 0.293 5.3 20.5042 0.0000OK Swale 1 Outlet 3.5 0.235 0.085 4.3749
960 minute summer MH-0001 630 20.780 0.170 3.2 0.1918 0.0000OK PN001 Node 2 3.2 0.362 0.094 1.0283
960 minute summer MH-0002 615 21.455 0.745 4.7 12.5318 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
960 minute summer MH-0003 615 21.830 0.630 4.9 20.8834 0.0000SURCHARGED Hydro-Brake® MH-0002 2.0
960 minute summer MH-0004 615 21.830 0.330 0.9 0.3734 0.0000SURCHARGED PN004 MH-0003 1.5 0.231 0.020 0.6301
960 minute summer MH-0005 690 22.518 0.717 5.2 40.1232 0.0000SURCHARGED Hydro-Brake® MH-0004 0.9
960 minute summer Node 3 630 20.779 0.229 2.8 0.2589 0.0000OK Swale 2 Node 2 2.7 0.103 0.055 2.0371
Flow+ v7.0 Design Report: 100 year 960 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 100 year 960 minute winter. 1200 minute analysis at 15 minute timestep. Mass balance: 99.92%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
960 minute winter Outlet 675 20.798 0.398 3.6 0.4501 0.0000OK Orifice 3.6 203.9
960 minute winter Node 2 675 20.799 0.313 4.6 22.8980 0.0000FLOOD RISK Swale 1 Outlet 3.6 0.180 0.088 4.3885
960 minute winter MH-0001 675 20.799 0.189 3.2 0.2143 0.0000OK PN001 Node 2 3.1 0.359 0.092 1.0795
960 minute winter MH-0002 675 21.463 0.753 3.9 12.8771 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
960 minute winter MH-0003 675 21.851 0.651 3.9 24.1387 0.0000SURCHARGED Hydro-Brake® MH-0002 2.0
960 minute winter MH-0004 675 21.851 0.351 0.9 0.3965 0.0000SURCHARGED PN004 MH-0003 0.9 0.152 0.012 0.6301
960 minute winter MH-0005 735 22.554 0.754 3.8 46.9884 0.0000SURCHARGED Hydro-Brake® MH-0004 0.9
960 minute winter Node 3 675 20.799 0.249 2.0 0.2813 0.0000OK Swale 2 Node 2 1.9 0.119 0.040 2.1201
Flow+ v7.0 Design Report: 100 year 1440 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 100 year 1440 minute summer. 1680 minute analysis at 30 minute timestep. Mass balance: 100.00%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
1440 minute summer Outlet 900 20.762 0.362 3.4 0.4095 0.0000OK Orifice 3.4 227.1
1440 minute summer Node 2 900 20.763 0.277 4.6 18.6182 0.0000OK Swale 1 Outlet 3.4 0.166 0.083 4.3109
1440 minute summer MH-0001 900 20.763 0.153 3.2 0.1734 0.0000OK PN001 Node 2 3.1 0.367 0.092 0.9811
1440 minute summer MH-0002 900 21.359 0.649 3.8 7.8833 0.0000FLOOD RISK Hydro-Brake® MH-0001 3.2
1440 minute summer MH-0003 900 21.803 0.603 3.7 16.6188 0.0000SURCHARGED Hydro-Brake® MH-0002 2.0
1440 minute summer MH-0004 900 21.803 0.303 0.9 0.3432 0.0000SURCHARGED PN004 MH-0003 1.3 0.230 0.018 0.6301
1440 minute summer MH-0005 960 22.492 0.692 3.6 35.3216 0.0000SURCHARGED Hydro-Brake® MH-0004 0.9
1440 minute summer Node 3 900 20.763 0.213 1.9 0.2406 0.0000OK Swale 2 Node 2 1.8 0.098 0.037 1.9363
Flow+ v7.0 Design Report: 100 year 1440 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 100 year 1440 minute winter. 1680 minute analysis at 30 minute timestep. Mass balance: 99.98%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
1440 minute winter Outlet 900 20.799 0.399 3.6 0.4509 0.0000OK Orifice 3.6 248.4
1440 minute winter Node 2 900 20.799 0.313 4.6 22.9837 0.0000FLOOD RISK Swale 1 Outlet 3.6 0.203 0.088 4.3885
1440 minute winter MH-0001 900 20.800 0.190 3.2 0.2150 0.0000OK PN001 Node 2 3.1 0.364 0.093 1.0810
1440 minute winter MH-0002 780 21.106 0.396 3.3 0.6989 0.0000SURCHARGED Hydro-Brake® MH-0001 3.2
1440 minute winter MH-0003 1020 21.830 0.630 3.0 20.8250 0.0000SURCHARGED Hydro-Brake® MH-0002 2.0
1440 minute winter MH-0004 1020 21.830 0.330 0.9 0.3730 0.0000SURCHARGED PN004 MH-0003 0.9 0.230 0.012 0.6301
1440 minute winter MH-0005 1050 22.520 0.720 2.7 40.4982 0.0000SURCHARGED Hydro-Brake® MH-0004 0.9
1440 minute winter Node 3 900 20.799 0.249 1.5 0.2821 0.0000OK Swale 2 Node 2 1.4 0.100 0.029 2.1227
Flow+ v7.0 Design Report: 100 year +40% 15 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 100 year +40% 15 minute summer. 255 minute analysis at 1 minute timestep. Mass balance: 98.48%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
15 minute summer Outlet 21 20.737 0.337 16.0 0.3815 0.0000OK Orifice 3.3 46.0
15 minute summer Node 2 20 20.727 0.241 49.3 14.6865 0.0000OK Swale 1 Outlet 16.0 0.461 0.392 4.0809
15 minute summer MH-0001 19 20.732 0.122 3.4 0.1376 0.0000OK PN001 Node 2 4.1 0.690 0.120 0.8821
15 minute summer MH-0002 12 21.600 0.890 50.5 13.2476 5.6947FLOOD Hydro-Brake® MH-0001 3.2
15 minute summer MH-0003 20 21.881 0.681 74.1 28.9693 0.0000SURCHARGED Hydro-Brake® MH-0002 2.0
15 minute summer MH-0004 20 21.882 0.382 7.3 0.4316 0.0000SURCHARGED PN004 MH-0003 -6.6 -0.170 -0.091 0.6301
15 minute summer MH-0005 20 22.519 0.719 91.4 40.4678 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
15 minute summer Node 3 11 20.771 0.221 48.5 0.2501 0.0000OK Swale 2 Node 2 46.5 1.151 0.945 1.6694
Flow+ v7.0 Design Report: 100 year +40% 15 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 100 year +40% 15 minute winter. 255 minute analysis at 1 minute timestep. Mass balance: 98.78%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
15 minute winter Outlet 15 20.760 0.360 16.3 0.4069 0.0000OK Orifice 3.4 47.1
15 minute winter Node 2 19 20.745 0.259 52.2 16.6430 0.0000OK Swale 1 Outlet 16.3 0.481 0.400 4.2089
15 minute winter MH-0001 18 20.752 0.142 3.2 0.1601 0.0000OK PN001 Node 2 4.5 0.686 0.131 0.9452
15 minute winter MH-0002 11 21.600 0.890 53.0 13.2476 9.6714FLOOD Hydro-Brake® MH-0001 3.2
15 minute winter MH-0003 19 21.905 0.705 76.6 32.7708 0.0000SURCHARGED Hydro-Brake® MH-0002 2.0
15 minute winter MH-0004 19 21.906 0.406 6.3 0.4588 0.0000SURCHARGED PN004 MH-0003 -5.5 -0.212 -0.077 0.6301
15 minute winter MH-0005 20 22.545 0.745 96.1 45.2028 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
15 minute winter Node 3 11 20.779 0.229 51.0 0.2593 0.0000OK Swale 2 Node 2 49.3 1.116 1.002 1.8094
Flow+ v7.0 Design Report: 100 year +40% 30 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 100 year +40% 30 minute summer. 270 minute analysis at 1 minute timestep. Mass balance: 99.90%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
30 minute summer Outlet 35 20.772 0.372 8.0 0.4210 0.0000OK Orifice 3.4 51.1
30 minute summer Node 2 35 20.773 0.287 44.4 19.8349 0.0000OK Swale 1 Outlet 8.0 0.413 0.197 4.3566
30 minute summer MH-0001 35 20.774 0.164 3.2 0.1857 0.0000OK PN001 Node 2 3.4 0.689 0.101 1.0129
30 minute summer MH-0002 18 21.600 0.890 44.8 13.2476 12.3477FLOOD Hydro-Brake® MH-0001 3.2
30 minute summer MH-0003 34 21.931 0.731 65.0 37.0622 0.0000SURCHARGED Hydro-Brake® MH-0002 2.0
30 minute summer MH-0004 35 21.931 0.431 4.4 0.4879 0.0000SURCHARGED PN004 MH-0003 -3.7 0.122 -0.052 0.6301
30 minute summer MH-0005 35 22.567 0.767 80.7 49.3744 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
30 minute summer Node 3 36 20.774 0.224 42.8 0.2529 0.0000OK Swale 2 Node 2 42.6 0.895 0.866 2.0056
Flow+ v7.0 Design Report: 100 year +40% 30 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 100 year +40% 30 minute winter. 270 minute analysis at 1 minute timestep. Mass balance: 99.82%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
30 minute winter Outlet 34 20.796 0.396 8.5 0.4475 0.0000OK Orifice 3.6 52.4
30 minute winter Node 2 34 20.796 0.310 39.7 22.6027 0.0000FLOOD RISK Swale 1 Outlet 8.5 0.437 0.209 4.3885
30 minute winter MH-0001 34 20.797 0.187 3.2 0.2117 0.0000OK PN001 Node 2 3.3 0.698 0.096 1.0740
30 minute winter MH-0002 18 21.600 0.890 40.7 13.2476 16.2470FLOOD Hydro-Brake® MH-0001 3.2
30 minute winter MH-0003 34 22.356 1.156 58.8 41.5435 0.0000FLOOD RISK Hydro-Brake® MH-0002 2.0
30 minute winter MH-0004 34 22.355 0.855 3.2 0.9673 0.0000SURCHARGED PN004 MH-0003 3.1 0.106 0.044 0.6301
30 minute winter MH-0005 34 22.604 0.804 73.0 56.1438 0.0000SURCHARGED Hydro-Brake® MH-0004 0.8
30 minute winter Node 3 36 20.796 0.246 38.8 0.2786 0.0000OK Swale 2 Node 2 38.5 0.819 0.782 2.1113
Flow+ v7.0 Design Report: 100 year +40% 60 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 100 year +40% 60 minute summer. 300 minute analysis at 1 minute timestep. Mass balance: 99.88%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
60 minute summer Outlet 50 20.800 0.400 7.7 0.4524 2.4270FLOOD Orifice 3.6 57.8
60 minute summer Node 2 53 20.804 0.318 33.2 23.5487 0.0000FLOOD RISK Swale 1 Outlet 7.7 0.358 0.190 4.3885
60 minute summer MH-0001 53 20.805 0.195 3.2 0.2206 0.0000OK PN001 Node 2 3.2 0.680 0.095 1.0922
60 minute summer MH-0002 32 21.600 0.890 33.3 13.2476 16.3395FLOOD Hydro-Brake® MH-0001 3.2
60 minute summer MH-0003 55 22.500 1.300 47.5 41.7971 1.7211FLOOD Hydro-Brake® MH-0002 2.0
60 minute summer MH-0004 55 22.502 1.002 3.2 1.1334 0.0000SURCHARGED PN004 MH-0003 -2.4 0.141 -0.034 0.6301
60 minute summer MH-0005 64 23.685 1.885 59.0 59.4814 0.0000SURCHARGED Hydro-Brake® MH-0004 1.1
60 minute summer Node 3 52 20.804 0.254 31.3 0.2877 0.0000OK Swale 2 Node 2 30.7 0.644 0.623 2.1400
Flow+ v7.0 Design Report: 100 year +40% 60 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 100 year +40% 60 minute winter. 300 minute analysis at 1 minute timestep. Mass balance: 99.98%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
60 minute winter Outlet 43 20.800 0.400 12.6 0.4524 6.2618FLOOD Orifice 3.6 57.9
60 minute winter Node 2 45 20.810 0.324 26.8 24.2728 0.0000FLOOD RISK Swale 1 Outlet 12.6 0.384 0.310 4.3885
60 minute winter MH-0001 45 20.811 0.201 3.2 0.2274 0.0000OK PN001 Node 2 3.3 0.692 0.095 1.1048
60 minute winter MH-0002 30 21.600 0.890 27.3 13.2476 20.8131FLOOD Hydro-Brake® MH-0001 3.2
60 minute winter MH-0003 44 22.500 1.300 39.1 41.7971 7.9895FLOOD Hydro-Brake® MH-0002 2.0
60 minute winter MH-0004 44 22.521 1.021 8.2 1.1544 0.0000SURCHARGED PN004 MH-0003 -7.4 -0.187 -0.104 0.6301
60 minute winter MH-0005 47 24.000 2.200 47.7 59.8382 6.8110FLOOD Hydro-Brake® MH-0004 1.2
60 minute winter Node 3 45 20.811 0.261 25.3 0.2956 0.0000OK Swale 2 Node 2 24.5 0.546 0.497 2.1629
Flow+ v7.0 Design Report: 100 year +40% 120 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 100 year +40% 120 minute summer. 360 minute analysis at 2 minute timestep. Mass balance: 99.91%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
120 minute summer Outlet 74 20.800 0.400 11.2 0.4524 8.1593FLOOD Orifice 3.6 68.5
120 minute summer Node 2 78 20.808 0.322 21.4 24.0326 0.0000FLOOD RISK Swale 1 Outlet 11.2 0.345 0.274 4.3885
120 minute summer MH-0001 78 20.809 0.199 3.2 0.2252 0.0000OK PN001 Node 2 3.2 0.667 0.094 1.1009
120 minute summer MH-0002 62 21.600 0.890 21.7 13.2476 17.8830FLOOD Hydro-Brake® MH-0001 3.2
120 minute summer MH-0003 82 22.500 1.300 30.3 41.7971 7.7876FLOOD Hydro-Brake® MH-0002 2.0
120 minute summer MH-0004 82 22.513 1.013 4.0 1.1455 0.0000SURCHARGED PN004 MH-0003 -3.2 0.174 -0.045 0.6301
120 minute summer MH-0005 86 24.000 2.200 37.2 59.8382 7.5695FLOOD Hydro-Brake® MH-0004 1.2
120 minute summer Node 3 78 20.809 0.259 19.7 0.2928 0.0000OK Swale 2 Node 2 18.9 0.441 0.385 2.1549
Flow+ v7.0 Design Report: 100 year +40% 120 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 100 year +40% 120 minute winter. 360 minute analysis at 2 minute timestep. Mass balance: 99.93%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
120 minute winter Outlet 74 20.800 0.400 14.2 0.4524 12.6216FLOOD Orifice 3.6 68.5
120 minute winter Node 2 76 20.812 0.326 17.3 24.5380 0.0000FLOOD RISK Swale 1 Outlet 14.2 0.333 0.349 4.3885
120 minute winter MH-0001 76 20.813 0.203 3.2 0.2299 0.0000OK PN001 Node 2 3.2 0.641 0.094 1.1092
120 minute winter MH-0002 58 21.600 0.890 17.2 13.2476 23.0399FLOOD Hydro-Brake® MH-0001 3.2
120 minute winter MH-0003 76 22.500 1.300 24.0 41.7971 16.1885FLOOD Hydro-Brake® MH-0002 2.0
120 minute winter MH-0004 76 22.526 1.026 2.2 1.1608 0.0000SURCHARGED PN004 MH-0003 3.5 0.203 0.049 0.6301
120 minute winter MH-0005 78 24.000 2.200 28.7 59.8382 17.1681FLOOD Hydro-Brake® MH-0004 1.2
120 minute winter Node 3 76 20.815 0.265 15.2 0.2996 0.0000OK Swale 2 Node 2 14.6 0.412 0.297 2.1742
Flow+ v7.0 Design Report: 100 year +40% 180 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 100 year +40% 180 minute summer. 420 minute analysis at 4 minute timestep. Mass balance: 99.89%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
180 minute summer Outlet 104 20.800 0.400 11.8 0.4524 11.1228FLOOD Orifice 3.6 79.3
180 minute summer Node 2 108 20.809 0.323 16.5 24.1684 0.0000FLOOD RISK Swale 1 Outlet 11.8 0.307 0.289 4.3885
180 minute summer MH-0001 108 20.810 0.200 3.2 0.2264 0.0000OK PN001 Node 2 3.2 0.645 0.094 1.1031
180 minute summer MH-0002 92 21.600 0.890 16.4 13.2476 18.6582FLOOD Hydro-Brake® MH-0001 3.2
180 minute summer MH-0003 116 22.500 1.300 22.3 41.7971 10.3988FLOOD Hydro-Brake® MH-0002 2.0
180 minute summer MH-0004 116 22.505 1.005 1.2 1.1363 0.0000SURCHARGED PN004 MH-0003 1.5 0.105 0.021 0.6301
180 minute summer MH-0005 120 24.000 2.200 27.1 59.8382 10.1648FLOOD Hydro-Brake® MH-0004 1.2
180 minute summer Node 3 108 20.811 0.261 14.4 0.2947 0.0000OK Swale 2 Node 2 13.9 0.352 0.282 2.1604
Flow+ v7.0 Design Report: 100 year +40% 180 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 100 year +40% 180 minute winter. 420 minute analysis at 4 minute timestep. Mass balance: 99.95%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
180 minute winter Outlet 104 20.800 0.400 13.1 0.4524 16.0300FLOOD Orifice 3.6 79.3
180 minute winter Node 2 108 20.810 0.324 13.5 24.2489 0.0000FLOOD RISK Swale 1 Outlet 13.1 0.332 0.321 4.3885
180 minute winter MH-0001 108 20.811 0.201 3.2 0.2272 0.0000OK PN001 Node 2 3.2 0.566 0.094 1.1044
180 minute winter MH-0002 84 21.600 0.890 13.1 13.2476 25.0559FLOOD Hydro-Brake® MH-0001 3.2
180 minute winter MH-0003 112 22.500 1.300 17.3 41.7971 18.6172FLOOD Hydro-Brake® MH-0002 2.0
180 minute winter MH-0004 116 22.506 1.006 1.3 1.1380 0.0000SURCHARGED PN004 MH-0003 3.5 0.167 0.049 0.6301
180 minute winter MH-0005 112 24.000 2.200 20.9 59.8382 21.6276FLOOD Hydro-Brake® MH-0004 1.2
180 minute winter Node 3 108 20.812 0.262 11.1 0.2962 0.0000OK Swale 2 Node 2 10.7 0.364 0.218 2.1647
Flow+ v7.0 Design Report: 100 year +40% 240 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 100 year +40% 240 minute summer. 480 minute analysis at 4 minute timestep. Mass balance: 99.91%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
240 minute summer Outlet 136 20.800 0.400 11.5 0.4524 13.5244FLOOD Orifice 3.6 90.5
240 minute summer Node 2 136 20.809 0.323 14.1 24.1562 0.0000FLOOD RISK Swale 1 Outlet 11.5 0.294 0.283 4.3885
240 minute summer MH-0001 136 20.810 0.200 3.2 0.2263 0.0000OK PN001 Node 2 3.2 0.618 0.094 1.1029
240 minute summer MH-0002 124 21.600 0.890 13.9 13.2476 16.2127FLOOD Hydro-Brake® MH-0001 3.2
240 minute summer MH-0003 152 22.500 1.300 18.6 41.7971 10.7074FLOOD Hydro-Brake® MH-0002 2.0
240 minute summer MH-0004 156 22.501 1.001 1.2 1.1320 0.0000SURCHARGED PN004 MH-0003 1.6 0.126 0.022 0.6301
240 minute summer MH-0005 152 24.000 2.200 22.5 59.8382 11.7944FLOOD Hydro-Brake® MH-0004 1.2
240 minute summer Node 3 136 20.811 0.261 11.9 0.2948 0.0000OK Swale 2 Node 2 11.5 0.336 0.233 2.1607
Flow+ v7.0 Design Report: 100 year +40% 240 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 100 year +40% 240 minute winter. 480 minute analysis at 4 minute timestep. Mass balance: 99.90%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
240 minute winter Outlet 132 20.800 0.400 11.9 0.4524 18.2158FLOOD Orifice 3.6 90.4
240 minute winter Node 2 136 20.808 0.322 11.4 24.0662 0.0000FLOOD RISK Swale 1 Outlet 11.9 0.300 0.293 4.3885
240 minute winter MH-0001 136 20.809 0.199 3.2 0.2255 0.0000OK PN001 Node 2 3.2 0.559 0.094 1.1013
240 minute winter MH-0002 112 21.600 0.890 10.9 13.2476 24.1107FLOOD Hydro-Brake® MH-0001 3.2
240 minute winter MH-0003 148 22.500 1.300 14.0 41.7971 19.7219FLOOD Hydro-Brake® MH-0002 2.0
240 minute winter MH-0004 144 22.526 1.026 2.1 1.1603 0.0000SURCHARGED PN004 MH-0003 1.6 0.198 0.022 0.6301
240 minute winter MH-0005 148 24.000 2.200 16.7 59.8382 21.0177FLOOD Hydro-Brake® MH-0004 1.2
240 minute winter Node 3 136 20.810 0.260 8.9 0.2940 0.0000OK Swale 2 Node 2 8.6 0.327 0.175 2.1584
Flow+ v7.0 Design Report: 100 year +40% 360 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 100 year +40% 360 minute summer. 600 minute analysis at 8 minute timestep. Mass balance: 99.90%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
360 minute summer Outlet 192 20.800 0.400 10.1 0.4524 13.6578FLOOD Orifice 3.6 112.1
360 minute summer Node 2 200 20.805 0.319 11.4 23.6950 0.0000FLOOD RISK Swale 1 Outlet 10.1 0.279 0.249 4.3885
360 minute summer MH-0001 200 20.806 0.196 3.2 0.2220 0.0000OK PN001 Node 2 3.2 0.504 0.094 1.0948
360 minute summer MH-0002 184 21.600 0.890 10.8 13.2476 15.4927FLOOD Hydro-Brake® MH-0001 3.2
360 minute summer MH-0003 232 22.500 1.300 13.9 41.7971 8.5336FLOOD Hydro-Brake® MH-0002 2.0
360 minute summer MH-0004 264 22.500 1.000 1.3 1.1311 0.0000SURCHARGED PN004 MH-0003 1.7 0.099 0.024 0.6301
360 minute summer MH-0005 224 24.000 2.200 16.6 59.8382 10.8741FLOOD Hydro-Brake® MH-0004 1.3
360 minute summer Node 3 200 20.806 0.256 8.8 0.2897 0.0000OK Swale 2 Node 2 8.5 0.193 0.172 2.1459
Flow+ v7.0 Design Report: 100 year +40% 360 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 100 year +40% 360 minute winter. 600 minute analysis at 8 minute timestep. Mass balance: 99.90%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
360 minute winter Outlet 192 20.800 0.400 10.1 0.4524 20.9643FLOOD Orifice 3.6 112.6
360 minute winter Node 2 192 20.806 0.320 9.3 23.7865 0.0000FLOOD RISK Swale 1 Outlet 10.1 0.256 0.247 4.3885
360 minute winter MH-0001 192 20.807 0.197 3.2 0.2228 0.0000OK PN001 Node 2 3.2 0.531 0.094 1.0964
360 minute winter MH-0002 176 21.600 0.890 8.4 13.2476 20.1038FLOOD Hydro-Brake® MH-0001 3.2
360 minute winter MH-0003 216 22.500 1.300 10.4 41.7971 18.4631FLOOD Hydro-Brake® MH-0002 2.0
360 minute winter MH-0004 216 22.507 1.007 2.2 1.1390 0.0000SURCHARGED PN004 MH-0003 1.4 0.129 0.019 0.6301
360 minute winter MH-0005 216 24.000 2.200 12.1 59.8382 22.1855FLOOD Hydro-Brake® MH-0004 1.2
360 minute winter Node 3 192 20.807 0.257 6.4 0.2907 0.0000OK Swale 2 Node 2 6.2 0.233 0.126 2.1489
Flow+ v7.0 Design Report: 100 year +40% 480 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 100 year +40% 480 minute summer. 720 minute analysis at 8 minute timestep. Mass balance: 99.89%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
480 minute summer Outlet 256 20.800 0.400 9.5 0.4524 14.7130FLOOD Orifice 3.6 133.5
480 minute summer Node 2 256 20.806 0.320 9.5 23.8009 0.0000FLOOD RISK Swale 1 Outlet 9.5 0.264 0.233 4.3885
480 minute summer MH-0001 256 20.807 0.197 3.2 0.2230 0.0000OK PN001 Node 2 3.2 0.494 0.094 1.0967
480 minute summer MH-0002 248 21.600 0.890 8.8 13.2476 13.0313FLOOD Hydro-Brake® MH-0001 3.2
480 minute summer MH-0003 312 22.500 1.300 11.0 41.7971 5.8818FLOOD Hydro-Brake® MH-0002 2.1
480 minute summer MH-0004 312 22.500 1.000 1.4 1.1315 0.0000SURCHARGED PN004 MH-0003 1.5 0.118 0.020 0.6301
480 minute summer MH-0005 288 24.000 2.200 12.8 59.8382 10.8240FLOOD Hydro-Brake® MH-0004 1.4
480 minute summer Node 3 256 20.807 0.257 6.8 0.2906 0.0000OK Swale 2 Node 2 6.6 0.174 0.134 2.1488
Flow+ v7.0 Design Report: 100 year +40% 480 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 100 year +40% 480 minute winter. 720 minute analysis at 8 minute timestep. Mass balance: 99.91%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
480 minute winter Outlet 248 20.800 0.400 8.3 0.4524 21.0305FLOOD Orifice 3.6 134.7
480 minute winter Node 2 248 20.805 0.319 8.0 23.6663 0.0000FLOOD RISK Swale 1 Outlet 8.3 0.287 0.205 4.3885
480 minute winter MH-0001 248 20.806 0.196 3.2 0.2217 0.0000OK PN001 Node 2 3.2 0.508 0.094 1.0943
480 minute winter MH-0002 232 21.600 0.890 7.0 13.2476 18.9337FLOOD Hydro-Brake® MH-0001 3.2
480 minute winter MH-0003 296 22.500 1.300 8.4 41.7971 15.1654FLOOD Hydro-Brake® MH-0002 2.1
480 minute winter MH-0004 304 22.500 1.000 2.5 1.1315 0.0000SURCHARGED PN004 MH-0003 1.4 0.162 0.019 0.6301
480 minute winter MH-0005 280 24.000 2.200 9.5 59.8382 22.6642FLOOD Hydro-Brake® MH-0004 1.4
480 minute winter Node 3 248 20.806 0.256 5.0 0.2892 0.0000OK Swale 2 Node 2 5.0 0.213 0.102 2.1444
Flow+ v7.0 Design Report: 100 year +40% 600 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 100 year +40% 600 minute summer. 840 minute analysis at 15 minute timestep. Mass balance: 99.91%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
600 minute summer Outlet 330 20.800 0.400 7.5 0.4524 12.3522FLOOD Orifice 3.6 153.1
600 minute summer Node 2 330 20.803 0.317 8.3 23.4230 0.0000FLOOD RISK Swale 1 Outlet 7.5 0.244 0.183 4.3885
600 minute summer MH-0001 330 20.804 0.194 3.2 0.2194 0.0000OK PN001 Node 2 3.2 0.416 0.094 1.0899
600 minute summer MH-0002 315 21.600 0.890 7.5 13.2476 12.2929FLOOD Hydro-Brake® MH-0001 3.2
600 minute summer MH-0003 405 22.500 1.300 9.0 41.7971 3.3909FLOOD Hydro-Brake® MH-0002 2.1
600 minute summer MH-0004 435 22.500 1.000 1.4 1.1311 0.0000SURCHARGED PN004 MH-0003 1.4 0.117 0.019 0.6301
600 minute summer MH-0005 375 24.000 2.200 10.3 59.8382 6.7228FLOOD Hydro-Brake® MH-0004 1.4
600 minute summer Node 3 330 20.803 0.253 5.5 0.2867 0.0000OK Swale 2 Node 2 5.3 0.120 0.109 2.1367
Flow+ v7.0 Design Report: 100 year +40% 600 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 100 year +40% 600 minute winter. 840 minute analysis at 15 minute timestep. Mass balance: 99.92%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
600 minute winter Outlet 315 20.800 0.400 7.6 0.4524 20.1672FLOOD Orifice 3.6 155.2
600 minute winter Node 2 315 20.803 0.317 7.2 23.4080 0.0000FLOOD RISK Swale 1 Outlet 7.6 0.268 0.186 4.3885
600 minute winter MH-0001 315 20.804 0.194 3.2 0.2193 0.0000OK PN001 Node 2 3.2 0.414 0.093 1.0896
600 minute winter MH-0002 300 21.600 0.890 6.2 13.2476 17.1177FLOOD Hydro-Brake® MH-0001 3.2
600 minute winter MH-0003 375 22.500 1.300 7.1 41.7971 13.9955FLOOD Hydro-Brake® MH-0002 2.1
600 minute winter MH-0004 375 22.501 1.001 1.4 1.1319 0.0000SURCHARGED PN004 MH-0003 1.3 0.136 0.019 0.6301
600 minute winter MH-0005 360 24.000 2.200 7.9 59.8382 19.3666FLOOD Hydro-Brake® MH-0004 1.4
600 minute winter Node 3 315 20.803 0.253 4.2 0.2865 0.0000OK Swale 2 Node 2 4.2 0.134 0.086 2.1364
Flow+ v7.0 Design Report: 100 year +40% 720 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 100 year +40% 720 minute summer. 960 minute analysis at 15 minute timestep. Mass balance: 99.93%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
720 minute summer Outlet 390 20.800 0.400 7.2 0.4524 12.5313FLOOD Orifice 3.6 172.8
720 minute summer Node 2 390 20.803 0.317 7.6 23.3700 0.0000FLOOD RISK Swale 1 Outlet 7.2 0.251 0.176 4.3885
720 minute summer MH-0001 390 20.804 0.194 3.2 0.2189 0.0000OK PN001 Node 2 3.2 0.396 0.094 1.0889
720 minute summer MH-0002 375 21.600 0.890 6.8 13.2476 11.5892FLOOD Hydro-Brake® MH-0001 3.2
720 minute summer MH-0003 495 22.500 1.300 8.0 41.7971 1.9300FLOOD Hydro-Brake® MH-0002 2.1
720 minute summer MH-0004 495 22.500 1.000 1.4 1.1312 0.0000SURCHARGED PN004 MH-0003 1.4 0.135 0.019 0.6301
720 minute summer MH-0005 450 24.000 2.200 9.0 59.8382 5.1444FLOOD Hydro-Brake® MH-0004 1.4
720 minute summer Node 3 390 20.803 0.253 4.8 0.2861 0.0000OK Swale 2 Node 2 4.7 0.109 0.095 2.1350
Flow+ v7.0 Design Report: 100 year +40% 720 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 100 year +40% 720 minute winter. 960 minute analysis at 15 minute timestep. Mass balance: 99.93%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
720 minute winter Outlet 375 20.800 0.400 7.4 0.4524 19.6457FLOOD Orifice 3.6 175.8
720 minute winter Node 2 375 20.803 0.317 6.7 23.4070 0.0000FLOOD RISK Swale 1 Outlet 7.4 0.233 0.181 4.3885
720 minute winter MH-0001 375 20.804 0.194 3.2 0.2193 0.0000OK PN001 Node 2 3.1 0.400 0.092 1.0896
720 minute winter MH-0002 360 21.600 0.890 5.6 13.2476 15.4543FLOOD Hydro-Brake® MH-0001 3.2
720 minute winter MH-0003 450 22.500 1.300 6.2 41.7971 11.9648FLOOD Hydro-Brake® MH-0002 2.1
720 minute winter MH-0004 450 22.502 1.002 1.4 1.1337 0.0000SURCHARGED PN004 MH-0003 1.4 0.154 0.019 0.6301
720 minute winter MH-0005 435 24.000 2.200 6.8 59.8382 15.8571FLOOD Hydro-Brake® MH-0004 1.4
720 minute winter Node 3 375 20.803 0.253 3.6 0.2864 0.0000OK Swale 2 Node 2 3.6 0.131 0.074 2.1360
Flow+ v7.0 Design Report: 100 year +40% 960 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 100 year +40% 960 minute summer. 1200 minute analysis at 15 minute timestep. Mass balance: 99.95%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
960 minute summer Outlet 510 20.800 0.400 6.0 0.4524 9.9493FLOOD Orifice 3.6 208.3
960 minute summer Node 2 525 20.802 0.316 6.5 23.3018 0.0000FLOOD RISK Swale 1 Outlet 6.0 0.268 0.146 4.3885
960 minute summer MH-0001 525 20.803 0.193 3.2 0.2183 0.0000OK PN001 Node 2 3.2 0.371 0.093 1.0876
960 minute summer MH-0002 510 21.600 0.890 5.9 13.2476 7.8117FLOOD Hydro-Brake® MH-0001 3.2
960 minute summer MH-0003 735 22.316 1.116 6.6 41.4723 0.0000FLOOD RISK Hydro-Brake® MH-0002 2.0
960 minute summer MH-0004 735 22.316 0.816 1.4 0.9232 0.0000SURCHARGED PN004 MH-0003 1.4 0.145 0.019 0.6301
960 minute summer MH-0005 600 24.000 2.200 7.3 59.8382 2.3223FLOOD Hydro-Brake® MH-0004 1.4
960 minute summer Node 3 525 20.802 0.252 3.9 0.2853 0.0000OK Swale 2 Node 2 3.8 0.102 0.077 2.1325
Flow+ v7.0 Design Report: 100 year +40% 960 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 100 year +40% 960 minute winter. 1200 minute analysis at 15 minute timestep. Mass balance: 99.94%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
960 minute winter Outlet 495 20.800 0.400 5.9 0.4524 16.4928FLOOD Orifice 3.6 215.4
960 minute winter Node 2 495 20.802 0.316 5.8 23.3236 0.0000FLOOD RISK Swale 1 Outlet 5.9 0.190 0.144 4.3885
960 minute winter MH-0001 495 20.803 0.193 3.2 0.2184 0.0000OK PN001 Node 2 3.1 0.385 0.092 1.0880
960 minute winter MH-0002 495 21.600 0.890 4.9 13.2476 11.3418FLOOD Hydro-Brake® MH-0001 3.2
960 minute winter MH-0003 615 22.500 1.300 5.1 41.7971 7.4845FLOOD Hydro-Brake® MH-0002 2.1
960 minute winter MH-0004 615 22.503 1.003 1.4 1.1344 0.0000SURCHARGED PN004 MH-0003 1.4 0.147 0.019 0.6301
960 minute winter MH-0005 570 24.000 2.200 5.4 59.8382 14.1681FLOOD Hydro-Brake® MH-0004 1.4
960 minute winter Node 3 495 20.802 0.252 2.9 0.2855 0.0000OK Swale 2 Node 2 2.9 0.112 0.058 2.1333
Flow+ v7.0 Design Report: 100 year +40% 1440 minute summer
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 100 year +40% 1440 minute summer. 1680 minute analysis at 30 minute timestep. Mass balance: 99.96%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
1440 minute summer Outlet 780 20.800 0.400 4.9 0.4524 6.7023FLOOD Orifice 3.6 269.9
1440 minute summer Node 2 810 20.801 0.315 5.3 23.2211 0.0000FLOOD RISK Swale 1 Outlet 4.9 0.169 0.121 4.3885
1440 minute summer MH-0001 810 20.802 0.192 3.2 0.2175 0.0000OK PN001 Node 2 3.1 0.355 0.092 1.0861
1440 minute summer MH-0002 810 21.600 0.890 4.7 13.2476 2.8489FLOOD Hydro-Brake® MH-0001 3.2
1440 minute summer MH-0003 990 21.906 0.706 4.9 33.0536 0.0000SURCHARGED Hydro-Brake® MH-0002 2.0
1440 minute summer MH-0004 990 21.906 0.406 1.1 0.4596 0.0000SURCHARGED PN004 MH-0003 1.1 0.151 0.015 0.6301
1440 minute summer MH-0005 990 23.143 1.343 5.1 58.8695 0.0000SURCHARGED Hydro-Brake® MH-0004 1.1
1440 minute summer Node 3 810 20.801 0.251 2.7 0.2844 0.0000OK Swale 2 Node 2 2.6 0.102 0.053 2.1299
Flow+ v7.0 Design Report: 100 year +40% 1440 minute winter
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Results for 100 year +40% 1440 minute winter. 1680 minute analysis at 30 minute timestep. Mass balance: 99.96%
EventUS Node
IDPeak
(mins)Level(m)
Depth(m)
Inflow(l/s)
NodeVol(m³)
Flood(m³)
StatusLinkID
DS NodeID
Outflow(l/s)
Velocity(m/s)
Flow/CapLinkVol(m³)
DischargeVol(m³)
1440 minute winter Outlet 750 20.800 0.400 4.7 0.4524 11.4387FLOOD Orifice 3.6 284.9
1440 minute winter Node 2 840 20.801 0.315 4.8 23.2056 0.0000FLOOD RISK Swale 1 Outlet 4.7 0.180 0.116 4.3885
1440 minute winter MH-0001 840 20.802 0.192 3.2 0.2174 0.0000OK PN001 Node 2 3.1 0.355 0.092 1.0858
1440 minute winter MH-0002 840 21.600 0.890 3.9 13.2476 2.9548FLOOD Hydro-Brake® MH-0001 3.2
1440 minute winter MH-0003 1080 22.480 1.280 3.9 41.7617 0.0000FLOOD RISK Hydro-Brake® MH-0002 2.1
1440 minute winter MH-0004 1080 22.480 0.980 1.4 1.1084 0.0000SURCHARGED PN004 MH-0003 1.4 0.144 0.019 0.6301
1440 minute winter MH-0005 900 24.000 2.200 3.8 59.8382 5.6960FLOOD Hydro-Brake® MH-0004 1.4
1440 minute winter Node 3 780 20.801 0.251 2.0 0.2843 0.0000OK Swale 2 Node 2 2.0 0.102 0.041 2.1295
Flow+ v7.0 Design Report: Manhole Type Library
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Adoptable
Max Width (mm) Diameter (mm) Width (mm) Max Depth (m) Diameter (mm) Width (mm)
374 1200 1.500 1050
499 1350 99.999 1200
749 1500
900 1800
>900 Link+900 mm
Flow+ v7.0 Design Report: Link Type Library
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Circular
Shape Circular Dia (mm)
Barrels 1 100
Height (mm) 150
Width (mm)
Side Slope (1:X)
Auto Increment (mm) 75
Preferred Cover (m)
Steep Slope (1:X)
Follow Ground x
Velocity Default
ks (mm) / n
Swale 1
Shape Trapezoidal
Barrels 1
Height (mm)
Width (mm) 1000
Side Slope (1:X) 3.0
Auto Increment (mm) 1
Preferred Cover (m)
Steep Slope (1:X)
Follow Ground
Velocity Colebrook-White
ks (mm) / n 100.000
Swale 2
Shape Trapezoidal Dia (mm)
Barrels 1 2000
Flow+ v7.0 Design Report: Link Type Library
Z:\Projects\19033 Cherry Holt Rd, Stamford\06 Calculations\Proposed Drainage System.pfd Copyright © 1988-2019 Causeway Software Solutions Limited
Height (mm)
Width (mm) 1000
Side Slope (1:X) 3.0
Auto Increment (mm) 1
Preferred Cover (m)
Steep Slope (1:X)
Follow Ground
Velocity Default
ks (mm) / n