swmm update - onondaga county save the rain
DESCRIPTION
Update on Onondaga County's Stormwater Management Model (SWMM) presented to the ACJ Quarterly Meeting on February 26, 2013TRANSCRIPT
SWMM UpdateSWMM UpdateOnondaga CountySave the Rain ProgramOnondaga CountySave the Rain ProgramSave the Rain ProgramJoanne M. Mahoney, County ExecutiveJoanne M. Mahoney, County ExecutiveSave the Rain ProgramJoanne M. Mahoney, County ExecutiveJoanne M. Mahoney, County Executive
ACJ Quarterly MeetingFebruary 26, 2013
2
OutlineOutline
1.1. Model DevelopmentModel Developmentpp
2.2. Calibration PlanCalibration Plan
3.3. Next StepsNext Steps3.3. Next Steps Next Steps
3
Outline
11 M d l D l tM d l D l t1.1. Model DevelopmentModel Development
▫▫ Model NetworkModel Network
▫▫ SubcatchmentSubcatchment ChangesChanges
▫▫ Boundary Condition ChangesBoundary Condition Changes
▫▫ EBSS OperationEBSS Operation
2.2. Calibration PlanCalibration Plan
3.3. Next StepsNext Steps
4Original Model Network - 2011
1.1. Model DevelopmentModel Development
• 2 separate models with free outfalls
• HBIS: 3 pump stations (PS)
Onondaga Lake
• MIS: 1 PS, 1 RTF and EBSS gates
• Not geo‐referenced• Used SWMM default• Used SWMM default infiltration parameters
• Imperviousness obtained by visual interpretation of aerial h
HBISHBIS
photos
• Simplified wet weather operation controls
• Model network vs GIS trunkMISMIS Model network vs GIS trunk sewer alignments (shown as background)
5
1.1. Model DevelopmentModel Development
• One combined model with•Updated Model Network - 2012 • One combined model with refined boundary conditions (Metro Headworks)
• 1,807 vs. 503 nodes; 1,909 vs.
Onondaga Lake
p
577 conduits; and 456 vs. 94 subcatchments
• HBIS: 3 pump stations (PS)
• MIS: 4 PS 2 RTFs and modified• MIS: 4 PS, 2 RTFs and modified EBSS gates
• Geo‐referenced• Used USDA soil survey data• Imperviousness based on Syracuse aerial survey GIS land cover and supplemented with Landsat imagery
HBISHBIS
Landsat imagery
• Improved wet weather operation controls
• Calibrated Creek/Brook
MISMIS
tailwater conditions based on USGS stream gauges
6Subcatchment Delineation
1.1. Model DevelopmentModel Development
• LIDAR DEM (Light Detection
Onondaga Lake(Light Detection
And RangingDigital Elevation Model)Model) provides base for ArcHydrodelineation
7Subcatchment Delineation
1.1. Model DevelopmentModel Development
• LIDAR DEM id b O d provides base
for ArcHydrodelineation
Onondaga Lake
• Incorporate sewers into DEMDEM
8
1.1. Model DevelopmentModel Development
Subcatchment Delineation
• LIDAR DEM id b f
Onondaga Lake
provides base for ArcHydrodelineation
i• Burn sewers into DEM
• ArcHydroSubcatchmentDelineation
• Manual modifications based on sewer network and aerial imagery
9
1.1. Model DevelopmentModel Development
Subcatchment - Imperviousnessp
• Detailed d li tidelineation
• Landsat fl i ireflectivity
classification
10
1.1. Model DevelopmentModel Development
Subcatchment - Infiltration
• USDA WSS ( b il
Onondaga Lake(Web Soil
Survey) data• Subcatchment
Lake
boundaries intersected by soil datasoil data
• Infiltration parameters found by area‐weighted averageaverage
11Subcatchment - Infiltration
1.1. Model DevelopmentModel Development
• Green‐AmptInfiltrationInfiltrationParameters
12
1.1. Model DevelopmentModel Development
Subcatchment - Flow Routing
Manhole to
g
impervious Manhole to combined
sewerpervious
impervious
ML_Impcov_v2Feature
DrivewayFlat RooftopNon-Flat RooftopParking AreaRoadwayRoadway MedianSidewalk
13Receiving Water Boundary Conditions
1.1. Model DevelopmentModel Development
g y
• Original model: no boundary condition• Updated model:• Updated model:▫ Water surface and bank elevation obtained from LIDAR DEM
▫ River depth based on USGS streamSouth ▫ River depth based on USGS stream gauge depth
of West Seneca Turnpike
Lake
14Receiving Water Boundary Conditions• Harbor Brook Profile
g y
Velasko RoadFlood Control Gate
Covered Culvert
Open Channel
Lake
15
1.1. Model DevelopmentModel Development
METRO Boundary ConditionsOriginal Model: • Simplified METRO boundary conditions
Liverpool PSLiverpool PS
y
•MIS and HBIS were modeled as free outfalls
Updated Model:
LeyLey Creek PSCreek PS
Updated Model: •Added Force Main flows from Ley Creek PS, Westside PS and Liverpool PS
Onondaga Lake
•Refined Headworks setup•Added hydraulic structures• Incorporated wet weather
Westside PSWestside PSIncorporated wet weather operation as real time controls
METROMETRO
16Force Main Flow Calibration-Liverpool PS
1.1. Model DevelopmentModel Development
p
17Force Main Flow Calibration-Ley Creek PS
1.1. Model DevelopmentModel Development
18Force Main Flow Calibration-Westside PS
1.1. Model DevelopmentModel Development
19Wet Weather Operations-EBSS1.1. Model DevelopmentModel Development
Original Model:Original Model: t #1 ith i lifi d R l Ti C t l (RTC) lt #1 ith i lifi d R l Ti C t l (RTC) l
080D Weir 401.04 ft
080E Weir
080F Weir 409.07 ft
080G Weir 407.2 ft
080H Weir 409.5 ft
Original Model: Original Model: no gate #1 with simplified Real Time Control (RTC) rulesno gate #1 with simplified Real Time Control (RTC) rulesUpdated Model: Updated Model: added gate #1 and RTC rules based on wet weather added gate #1 and RTC rules based on wet weather operation proceduresoperation procedures Gate #4 Weir Gate #4 Weir
TOW 399.6 ftTOW 399.6 ft
080A Weir 385.38 ft
080B Weir 398.22 ft
080C Weir 395.63 ft
080E Weir 398.79 ft
EBSS St t Gate #3Gate #3
Gate #4Gate #4Gate #1 Weir Gate #1 Weir TOW 384.2 ftTOW 384.2 ft
Gate #3 Weir Gate #3 Weir TOW 394.09 ftTOW 394.09 ft
OnondagaCreek
EBSS Starts east of
Beech Street
Gate Gate #1#1 Gate #2Gate #2
Gate #3Gate #3
20Wet Weather Operations-EBSS During Small Storms 1.1. Model DevelopmentModel Development
No overflows from 080 regulatorsNo overflows from 080 regulators
080D Weir 401.04 ft
080E Weir
080F Weir 409.07 ft
080G Weir 407.2 ft
080H Weir 409.5 ft
No overflows from 080 regulatorsNo overflows from 080 regulatorsGate status:Gate status:
Gates 1, 3 and 4: OpenGates 1, 3 and 4: OpenGate 2: ClosedGate 2: Closed
Gate #4 Weir Gate #4 Weir TOW 399.6 ftTOW 399.6 ft
EBSS St t
080A Weir 385.38 ft
080B Weir 398.22 ft
080C Weir 395.63 ft
080E Weir 398.79 ft
Gate #3Gate #3
Gate #4Gate #4Gate #1 Weir Gate #1 Weir TOW 384.2 ftTOW 384.2 ft
Gate #3 Weir Gate #3 Weir TOW 394.09 ftTOW 394.09 ft
OnondagaCreek
EBSS Starts east of
Beech Street
Gate Gate #1#1 Gate #2Gate #2
Gate #3Gate #3
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1.1. Model DevelopmentModel Development
Wet Weather Operations-EBSS During Large Storms
Overflows from 080 regulatorsOverflows from 080 regulators
080D Weir 401.04 ft
080E Weir
080F Weir 409.07 ft
080G Weir 407.2 ft
080H Weir 409.5 ft
Overflows from 080 regulatorsOverflows from 080 regulatorsGate status during storage modeGate status during storage mode::Gates 1, 3 and 4: ClosedGates 1, 3 and 4: ClosedGate 2: Open/Closed based on MIS water levelGate 2: Open/Closed based on MIS water level
Gate #4 Weir Gate #4 Weir TOW 399.6 ftTOW 399.6 ft
EBSS St t
080A Weir 385.38 ft
080B Weir 398.22 ft
080C Weir 395.63 ft
080E Weir 398.79 ft
Gate #3Gate #3
Gate #4Gate #4Gate #1 Weir Gate #1 Weir TOW 384.2 ftTOW 384.2 ft
Gate #3 Weir Gate #3 Weir TOW 394.09 ftTOW 394.09 ft
OnondagaCreek
EBSS Starts east of
Beech Street
Gate Gate #1#1 Gate #2Gate #2
Gate #3Gate #3
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1.1. Model DevelopmentModel Development
Wet Weather Operations-EBSS After Storms
No overflows from 080 regulatorsNo overflows from 080 regulators
080D Weir 401.04 ft
080E Weir
080F Weir 409.07 ft
080G Weir 407.2 ft
080H Weir 409.5 ft
Gate #4 Weir Gate #4 Weir TOW 399.6 ftTOW 399.6 ft
Gate status during drain mode:Gate status during drain mode:Gate 1: ClosedGate 1: ClosedGates 3 & 4: Open/Closed based on water levelGates 3 & 4: Open/Closed based on water levelGate 2: Open/Closed based on MIS water levelGate 2: Open/Closed based on MIS water level
EBSS St t
080A Weir 385.38 ft
080B Weir 398.22 ft
080C Weir 395.63 ft
080E Weir 398.79 ft
Gate #3Gate #3
Gate #4Gate #4Gate #1 Weir Gate #1 Weir TOW 384.2 ftTOW 384.2 ft
Gate #3 Weir Gate #3 Weir TOW 394.09 ftTOW 394.09 ft
pp
OnondagaCreek
EBSS Starts east of
Beech Street
Gate Gate #1#1 Gate #2Gate #2
Gate #3Gate #3
23
Outline
11 M d l D l tM d l D l t1.1. Model DevelopmentModel Development
2.2. Calibration Plan (2009 Baseline)Calibration Plan (2009 Baseline)
▫▫ Dry Weather FlowDry Weather Flow
▫▫ Wet Weather FlowWet Weather Flow
3.3. Next StepsNext Steps
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2.2. CalibrationCalibration
Flow Meter (FM) Locations (2004 & 2009)
25
2.2. CalibrationCalibration
Dry Weather Flow (DWF) CalibrationOriginal Model‐2011DWF to 101 nodes
Updated Model‐2012DWF to 379 nodes
y ( )
26
Dry Weather Flow Calibration ChartsDry Weather Flow Calibration Charts
27
2.2. CalibrationCalibration
Rain Gauge Locations
2004 ‐ 1 RG (Metro) 2009 ‐ 3 RGs
g
28
2.2. CalibrationCalibration
HarborHarbor Brook
S h dSewershedFlow Meter Locations
29Clinton Sewershed Flow Meter Locations2.2. CalibrationCalibration
30Midland Sewershed Flow Meter Locations2.2. CalibrationCalibration
CSO 077 is located upstream of CSO 060 pand does not have a separate discharge to a receiving water body.
31
2.2. CalibrationCalibration
Calibration Graphs: 030 Overflow
32
Outline
11 M d lM d l D l tD l t1.1. Model Model DevelopmentDevelopment
2.2. Calibration PlanCalibration Plan
3.3. Next StepsNext Steps
33
Next Steps1.1. 2009 Annual Capture Baseline2009 Annual Capture Baseline
▫▫ Incorporate 2013 weir survey elevation dataIncorporate 2013 weir survey elevation data▫▫ Finalize results for 4/1/2013 ACJ ReportFinalize results for 4/1/2013 ACJ Report
didi dd i i hi i h▫▫ Coordinate 3Coordinate 3rdrd party review with CDMparty review with CDM2.2. 2012 Annual Capture Update Estimate2012 Annual Capture Update Estimate▫▫ Incorporate 2013 weir survey elevation dataIncorporate 2013 weir survey elevation data▫▫ Incorporate 2013 weir survey elevation dataIncorporate 2013 weir survey elevation data▫▫ Incorporate 2010Incorporate 2010‐‐2012 green infrastructure projects2012 green infrastructure projects▫▫ Validate model using 2012 flow monitoring dataValidate model using 2012 flow monitoring dataValidate model using 2012 flow monitoring dataValidate model using 2012 flow monitoring data▫▫ Identify priority GI project areas for 2013 focusIdentify priority GI project areas for 2013 focus
3.3. 20132013 Annual Capture Goal: 89.5% 12/31/2013 (4/1/2014 ACJ Annual Capture Goal: 89.5% 12/31/2013 (4/1/2014 ACJ R )R )Report)Report)
Questions?Questions?