addendum no. 1 date: august 2, 2019 specifications and
TRANSCRIPT
ADDENDUM NO. 1
DATE: August 2, 2019
SPECIFICATIONS AND CONTRACT DOCUMENTS 2018 MACON-BIBB COUNTY STORMWATER CULVERT
REPAIR/REPLACEMENT (GROUP 3) FOR
MACON WATER AUTHORITY MACON, GEORGIA
AGENT OF MACON-BIBB, GA
AUGUST 2019
1. Revised plan sheets and supplemental details have been attached to provideadditional clarification on the design of the proposed headwalls. Contractoris still responsible for field confirming designs will match field conditions.Contractor shall notify Engineer / MWA prior to ordering headwalls if designupdates may be required.
2. Information on the size, type, dimensions, estimated backfill quantity hasbeen provided for all headwalls shown on the plans. Additionally,clarification on headwalls expected to be pre-cast or poured in place hasbeen included. No change to the Bid Form or Measurement and Paymenttechnical specification has been made. Backfill soil, bedding materials,brick, grouting, etc. all remain incidental and should be included in the unitprice provided for each headwall. Bid prices provided for headwalls shallconsider all new design updates included in this addendum.
3. Bidders shall note that headwalls 2A, 4A, 4B, 10D and 11B now include aconcrete apron as shown on the supplementary details. Costs for theconcrete aprons shall be included in the unit price provided for the headwallon those applicable Bid Forms.
--- END OF ADDENDUM NO. 1 ---
Structural Engineering Consultants
August 2, 2019 Eric Jackson Hodges, Harbin, Newberry, and Tribble, Inc. 3920 Arkwright Road, Suite 101 Macon, GA 31210 Re: Bibb County Stormwater Improvement Headwalls Pi-Tech, Inc. has reviewed the proposed headwalls to be used at several new stormwater drainage locations. Wall types, pipe sizes, and topographical details were provided on 7/26/2019. There are three types of proposed headwalls: straight walls, 45-degree wing walls, and L shaped walls. All of these headwalls are constructed from plain, unreinforced concrete. All of the designs are based on GDOT Standard 1001-B and modified where necessary to account for the situations present at these locations. Retained soil height, slope, and proximity to roadway were all considered as a part of this analysis. In order to analyze the system, we made the following engineering assumptions.
• All concrete to be used will be Georgia DOT Class “B” concrete with a yield stress of 2200 psi and will be of normal weight.
• The soil in these locations will have a maximum weight of 120 pcf. • A minimum bearing pressure of 2000 psf with a soil subgrade modulus of 100 pci.
The proposed headwalls were analyzed using IES QuickRWall 5.0 and IES Visual Analysis 18.0. Plain concrete checks were performed in accordance with ACI 318-11. Based on this, a marked-up version of the 1001-B detail was created for each individual headwall. These details are attached to this letter. If you have any questions, or require further information, please feel free to contact us. Sincerely,
D. Scott Pipkins, Ph.D., P.E. Paul Johnson, E.I.T. Principal Engineer Project Engineer
Pi-Tech, Inc. P.O. Box 6631 Macon, GA 31208-6631 Phone: (478)743-5600 Fax: (478)743-5640 web: www.pi-techinc.com
0+00 0+25 0+50
EX
IS
TIN
G 42"C
MP
IN
V:424.21
EX
IS
TIN
G 42"C
MP
IN
V:425.84
0+75
420
430
440
EXISTING
GROUND
ELEVATION
1+00
EXISTING
ROADWAY
APPROX. LOCATION
OF EXISTING 6"DIA.
DIP WATER LINE
APPROX. LOCATION OF
EXISTING GAS LINE
EXISTING UNDERGROUND
UTILITIES (TYP.)
420
430
440
4
2
3
106
431.94
CO
SSMH
RIM: 432.66
INV A:423.93
INV B:423.22
4
2
5
4
3
0
4
3
5
4
3
4
4
3
5
4
3
0
4
2
9
4
2
8
4
2
8
4
2
9
4
3
1
4
3
2
4
3
3
4
3
4
4
3
6
4
2
4
4
2
6
4
2
74
2
8
4
2
9
4
3
1
4
3
2
4
3
3
4
3
4
8"PV
C
8"P
VC
SSMH
RIM: 430.62
INV A:-9568.38
INV B:-9568.38
A
B
A
B
NOW OR FORMERLY
CHARLES T. & KATHY BRANCH
PARCEL J007-0101
DB 1764, PG 567
PB 54, PG 43
NOW OR FORMERLY
WALTER & JENNIFER MCNATT
PARCEL K007-0051
DB 8476, PG 173
PB 54, PG 43E
XIS
TIN
G 2
0'
DR
AIN
AG
E
EA
SE
M
EN
T
NOW OR FORMERLY
PAMELA W. LAWSON
PARCEL K007-0067
DB 8162, PG 171
PB 54, PG 43
.5IN RB
E
X
IS
T
IN
G
2
0
'
D
R
A
I
N
A
G
E
E
A
S
E
M
E
N
T
EXISTING
INV. 424.21
EXISTING
INV. 425.84
N
X
X
STRATFORD HILLS DRIVE (55' R/W)
XX
PROFILE VIEW
SCALE: H:1"=20', V:1"=5'
3920 ARKWRIGHT RD.(478) 743-7175
DATE
SHEET OF
SCALE
PROJ. NO.
CULVERTS REPAIR / REPLACEMENT (GROUP 3)
MACON WATER AUTHORITY
FOR
JUNE 2019
5020-023-01
SUITE 101(478) 743-1703(FAX) MACON, GEORGIA 31210
BIBB COUNTY, GEORGIA
13
2018 MACON - BIBB COUNTYWIDE STORMWATER
DWG.
No. 30797PROFESSIONAL
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No. 37584PROFESSIONAL
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MWA-2018 SW
4305' CONTOUR LINE
SANITARY SEWER MANHOLE
WATER METER
STORM SEWER LINE
SANITARY SEWER LINE
UNDERGROUND POWER
ASPHALT
LEGEND
UP
SAN
UNDERGROUND TELEPHONE UT
WATER LINE W
CLEAN OUT
TRANSFORMER
GAS LINE
4281' CONTOUR LINE
1
GRAPHIC SCALE IN FEET
0 40201020
DISCLAIMER:
1. THE DESIGN / ENGINEERING WORK SHOWN ON THIS SHEET IS EXCLUSIVELY BASED ON THE TOPOGRAPHY,
EXISTING CONDITIONS, OR DESIGNS BY OTHERS AS REFERENCED. SHOULD ANY OF THE EXISTING CONDITIONS
OR TOPOGRAPHY BE FOUND TO BE DIFFERENT OR CHANGED, THE DESIGN ENGINEER THAT PREPARED THIS
PLAN SHOULD BE CONTACTED PRIOR TO CONSTRUCTING / IMPLEMENTING THIS DESIGN, AND TO DETERMINE IF
DESIGN REVISIONS ARE REQUIRED.
2. THE ENGINEER THAT PREPARED THIS DRAWING HAS ASSUMED THAT THE CONSTRUCTION WILL BE PERFORMED
IN ACCORDANCE WITH THE ENGINEERING INTENT AND COMPLETE CONSTRUCTION SPECIFICATIONS WILL BE
PREPARED TO ACCOMPANY THE DRAWINGS. THE ENGINEER EXPECTS THAT HE WILL BE INVOLVED WITH,
PROVIDED AN OPPORTUNITY TO REVIEW, AND INSPECT PRODUCTS AND CONSTRUCTION OF THE
IMPROVEMENTS SHOWN ON THIS PLAN SHEET IN ORDER TO CONFIRM THAT THE CONSTRUCTION OF THE
IMPROVEMENTS ARE INSTALLED IN ACCORDANCE WITH DESIGN CONCEPTS. SHOULD THE DESIGN ENGINEER
NOT BE INVOLVED WITH CONSTRUCTION, HE WILL NOT BE LIABLE FOR CHANGES IN CONDITIONS OR FIELD
CONDITIONS THAT MAY AFFECT THE DESIGN.
1" = 20'
PROJECT 1 - 5417 STRATFORD HILLS DRIVE
8-2-19
PLAN VIEW
SCALE: 1"=20'
CONTRACTOR TO REMOVE
EXISTING 42" DIA. CMP
DOUBLE ROW OF SENSITIVE
SILT FENCE (TYPE-C)
(TYP.)
Sd1-S
±55 LF OF 42" DIA. CLASS III REINFORCED
CONCRETE PIPE. CONTRACTOR TO FIELD
CONFIRM AND SET GRADE TO PROVIDE
MINIMUM SLOPE OF 2.9%.
CLASS 'A' ASPHALT
PAVEMENT REPLACEMENT
PROPOSED HEADWALL 1-B. SHALL BE
PRE-CAST 45° WINGWALL REINFORCED
CONCRETE HEADWALL WITH 54" DIA.
OPENING PER GDOT 1001-B STANDARDS
PROPOSED HW-1A. SHALL BE POUR-IN-PLACE
L-SHAPED REINFORCED CONCRETE HEADWALL
WITH 54" DIA. OPENING PER GDOT 1001-B
STANDARDS
55 SY OF 9" DIA. RIP-RAP
OUTLET PROTECTION
OP
G
NOTES:
1. EXISTING CONDITION INFORMATION TAKEN FROM THE "TOPOGRAPHIC SURVEY" PREPARED BY WELLSTON
ASSOCIATES LAND SURVEYORS, LLC, DATE OF SURVEY: MARCH 7, 2016.
2. THE UNDERGROUND UTILITIES SHOWN ON THIS DRAWING WERE COMPILED FROM FIELD OBSERVATIONS
WITHOUT BENEFIT OF EXCAVATION. WELLSTON ASSOCIATES LAND SURVEYORS, LLC DOES NOT
GUARANTEE THAT ALL UTILITIES ARE SHOWN. VERIFICATION OF UTILITIES SHOULD BE MADE BY THE
INDIVIDUAL UTILITY COMPANY PRIOR TO ANY CONSTRUCTION.
3. CONTRACTOR SHALL BE RESPONSIBLE FOR ALL UTILITY LOCATES PRIOR TO CONSTRUCTION. DEPTH OF
ALL EXISTING UTILITIES SHALL BE CONFIRMED BY CONTRACTOR PRIOR TO CONSTRUCTION. MATERIALS
FOR ANY REQUIRED WATER OR SEWER SYSTEM RELOCATION WILL BE PROVIDED BY THE MACON WATER
AUTHORITY, BUT INSTALLATION, INCLUDING BYPASS, WILL BE INCIDENTAL TO THE CONSTRUCTION OF THE
INDIVIDUAL PROJECT. CONTRACTOR IS RESPONSIBLE FOR ALL REQUIRED UTILITY RELOCATIONS.
4. CONTRACTOR WILL BE RESPONSIBLE FOR STORM WATER MANAGEMENT AND TRAFFIC CONTROL IN THE
PROJECT AREA DURING CONSTRUCTION. ALL STORMWATER SHALL BE IN ACCORDANCE WITH THE "LOCAL
STORMWATER DESIGN MANUAL FOR MACON - BIBB COUNTY, GEORGIA", LATEST EDITION. IT IS ASSUMED
THAT ALL EXISTING PIPES ARE CURRENTLY DRAINING PROPERLY. CONTRACTOR SHALL NOTIFY ENGINEER
IF EXISTING CONDITIONS DO NOT SUPPORT THIS ASSUMPTION.
5. ALL DISTURBED AREAS SHALL BE STABILIZED WITH EROSION MATTING AND PERMANENT GRASSING. ALL
SEDIMENTATION AND EROSION BMP'S SHALL BE IN ACCORDANCE WITH THE EROSION AND SEDIMENTATION
CONTROL IN GEORGIA HANDBOOK, LATEST EDITION.
6. CONTRACTOR RESPONSIBLE FOR PROVIDING CONTINUED ACCESS (ONE LANE TO REMAIN OPEN) TO
HOMEOWNERS EFFECTED BY ANY CONSTRUCTION RELATED WORK.
7. PROPOSED HEADWALLS SHALL MATCH THE DESIGN OF THE EXISTING HEADWALLS AND SHALL BE IN
ACCORDANCE WITH GDOT STANDARDS. CONTRACTOR SHALL PROVIDE PRECAST OR POUR IN PLACE
HEADWALLS AS SHOWN ON PLANS TO MATCH EXISTING CONDITIONS. CONTRACTOR IS RESPONSIBLE FOR
DETERMINING SIZE AND DESIGN OF HEADWALLS. ANY FIELD CHANGES TO HEADWALL LOCATION, DESIGN,
ETC. REQUESTED BY THE CONTRACTOR SHALL BE PRE-APPROVED BY THE ENGINEER AND AT NO
ADDITIONAL COST TO THE OWNER.
8. CONTRACTOR SHALL SUBMIT DETAILED SHOP DRAWINGS FOR ALL PRECAST OR POUR-IN-PLACE CONCRETE
STRUCTURES.
±55 LF OF 42" DIA. CLASS III
REINFORCED CONCRETE PIPE.
± 4 CY OF COMPACTED BACKFILL
BEHIND HEADWALL TO PROMOTE
DRAINAGE AND PREVENT EROSION
AND UNDERMINING OF HEADWALL
PROPOSED HW-1A. SHALL BE
POUR-IN-PLACE L-SHAPED REINFORCED
CONCRETE HEADWALL WITH 54" DIA.
OPENING PER GDOT 1001-B STANDARDS
PROPOSED HEADWALL 1-B. SHALL BE
PRE-CAST 45° WINGWALL REINFORCED
CONCRETE HEADWALL WITH 54" DIA.
OPENING PER GDOT 1001-B STANDARDS
± 4 CY OF COMPACTED BACKFILL
BEHIND HEADWALL TO PROMOTE
DRAINAGE AND PREVENT EROSION
AND UNDERMINING OF HEADWALL
NOTES:
1. PLEASE REFER TO SUPPLEMENTARY DETAILS FOR HEADWALLS
PROVIDED IN ADDENDUM NO. 1.
2. HEADWALL DESIGN INFORMATION HAS BEEN UPDATED
(ADDENDUM NO. 1). ALL DIMENSIONS HAVE BEEN CONFIRMED
AND CALCULATIONS HAVE BEEN PERFORMED BY A
STRUCTURAL ENGINEER, REGISTERED IN THE STATE OF
GEORGIA. ENGINEER'S SEALS WHO APPEAR ON THIS PAGE ARE
NOT SEALING THE STRUCTURAL DESIGN OF THE HEADWALLS.
REVISED AUGUST 2, 2019: UPDATED INFO AND NOTES ON HEADWALLS (ADDENDUM NO. 1)
EX
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MP
IN
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EX
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TIN
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MP
IN
V:368.31
360
0+00 0+50 0+75
370
380
EXISTING GROUND
ELEVATION
0+25
EXISTING
ROADWAY
APPROX. LOCATION
OF EXISTING 8"DIA.
DIP WATER LINE
1+00
1IN OTP
INV:371.19
6" PVC
INV:378.74
12" CPP
203
-598.40
UTP OHP OHT OHTV
NOW OR FORMERLY
RICKY & DENISE BENNETT
PARCEL G007-0050
DB 9022, PG 306
PB 55, PG 51
NOW OR FORMERLY
RONALD & JULIE WALKER
PARCEL G007-0051
DB 2989, PG 160
3
7
5
3
7
6
3
7
7
378
3
8
0
3
8
1
3
8
0
3
7
5
3
7
3
369
369
3
7
5
3
7
0
3
7
8
380
379
3
7
6
3
7
0
3753
7
1
3
7
4
3
7
2
3
7
3
3
7
4
3
7
33
7
2
3
7
3
3
7
4
EXISTING
INV. 369.06
N
INV:377.58
12" CPP
PROPERTY LINE (TYP.)
T
O
B
E
S
O
F
K
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P
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(5
5
'R
/W
)
XX
XX
EXISTING
INV. 368.31
3920 ARKWRIGHT RD.(478) 743-7175
DATE
SHEET OF
SCALE
PROJ. NO.
CULVERTS REPAIR / REPLACEMENT (GROUP 3)
MACON WATER AUTHORITY
FOR
JUNE 2019
5020-023-01
SUITE 101(478) 743-1703(FAX) MACON, GEORGIA 31210
BIBB COUNTY, GEORGIA
13
2018 MACON - BIBB COUNTYWIDE STORMWATER
DWG.
No. 30797PROFESSIONAL
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MWA-2018 SW
2
NOTES:
1. EXISTING CONDITION INFORMATION TAKEN FROM THE "TOPOGRAPHIC SURVEY" PREPARED BY WELLSTON
ASSOCIATES LAND SURVEYORS, LLC, DATE OF SURVEY: MARCH 7, 2016.
2. THE UNDERGROUND UTILITIES SHOWN ON THIS DRAWING WERE COMPILED FROM FIELD OBSERVATIONS
WITHOUT BENEFIT OF EXCAVATION. WELLSTON ASSOCIATES LAND SURVEYORS, LLC DOES NOT
GUARANTEE THAT ALL UTILITIES ARE SHOWN. VERIFICATION OF UTILITIES SHOULD BE MADE BY THE
INDIVIDUAL UTILITY COMPANY PRIOR TO ANY CONSTRUCTION.
3. CONTRACTOR SHALL BE RESPONSIBLE FOR ALL UTILITY LOCATES PRIOR TO CONSTRUCTION. DEPTH OF
ALL EXISTING UTILITIES SHALL BE CONFIRMED BY CONTRACTOR PRIOR TO CONSTRUCTION. MATERIALS
FOR ANY REQUIRED WATER OR SEWER SYSTEM RELOCATION WILL BE PROVIDED BY THE MACON WATER
AUTHORITY, BUT INSTALLATION, INCLUDING BYPASS, WILL BE INCIDENTAL TO THE CONSTRUCTION OF THE
INDIVIDUAL PROJECT. CONTRACTOR IS RESPONSIBLE FOR ALL REQUIRED UTILITY RELOCATIONS.
4. CONTRACTOR WILL BE RESPONSIBLE FOR STORM WATER MANAGEMENT AND TRAFFIC CONTROL IN THE
PROJECT AREA DURING CONSTRUCTION. ALL STORMWATER SHALL BE IN ACCORDANCE WITH THE "LOCAL
STORMWATER DESIGN MANUAL FOR MACON - BIBB COUNTY, GEORGIA", LATEST EDITION. IT IS ASSUMED
THAT ALL EXISTING PIPES ARE CURRENTLY DRAINING PROPERLY. CONTRACTOR SHALL NOTIFY ENGINEER
IF EXISTING CONDITIONS DO NOT SUPPORT THIS ASSUMPTION.
5. ALL DISTURBED AREAS SHALL BE STABILIZED WITH EROSION MATTING AND PERMANENT GRASSING. ALL
SEDIMENTATION AND EROSION BMP'S SHALL BE IN ACCORDANCE WITH THE EROSION AND SEDIMENTATION
CONTROL IN GEORGIA HANDBOOK, LATEST EDITION.
6. CONTRACTOR RESPONSIBLE FOR PROVIDING CONTINUED ACCESS (ONE LANE TO REMAIN OPEN) TO
HOMEOWNERS EFFECTED BY ANY CONSTRUCTION RELATED WORK.
7. PROPOSED HEADWALLS SHALL MATCH THE DESIGN OF THE EXISTING HEADWALLS AND SHALL BE IN
ACCORDANCE WITH GDOT STANDARDS. CONTRACTOR SHALL PROVIDE PRECAST OR POUR IN PLACE
HEADWALLS AS SHOWN ON PLANS TO MATCH EXISTING CONDITIONS. CONTRACTOR IS RESPONSIBLE FOR
DETERMINING SIZE AND DESIGN OF HEADWALLS. ANY FIELD CHANGES TO HEADWALL LOCATION, DESIGN,
ETC. REQUESTED BY THE CONTRACTOR SHALL BE PRE-APPROVED BY THE ENGINEER AND AT NO
ADDITIONAL COST TO THE OWNER.
8. CONTRACTOR SHALL SUBMIT DETAILED SHOP DRAWINGS FOR ALL PRECAST OR POUR-IN-PLACE CONCRETE
STRUCTURES.
9. CONTRACTOR TO AVOID FLAGGED TREES ON DOWNSTREAM END OF PROJECT SITE UNLESS ABSOLUTELY
NECESSARY FOR CONSTRUCTION OF THIS CROSSING.
DISCLAIMER:
1. THE DESIGN / ENGINEERING WORK SHOWN ON THIS SHEET IS EXCLUSIVELY BASED ON THE TOPOGRAPHY,
EXISTING CONDITIONS, OR DESIGNS BY OTHERS AS REFERENCED. SHOULD ANY OF THE EXISTING CONDITIONS
OR TOPOGRAPHY BE FOUND TO BE DIFFERENT OR CHANGED, THE DESIGN ENGINEER THAT PREPARED THIS
PLAN SHOULD BE CONTACTED PRIOR TO CONSTRUCTING / IMPLEMENTING THIS DESIGN, AND TO DETERMINE IF
DESIGN REVISIONS ARE REQUIRED.
2. THE ENGINEER THAT PREPARED THIS DRAWING HAS ASSUMED THAT THE CONSTRUCTION WILL BE PERFORMED
IN ACCORDANCE WITH THE ENGINEERING INTENT AND COMPLETE CONSTRUCTION SPECIFICATIONS WILL BE
PREPARED TO ACCOMPANY THE DRAWINGS. THE ENGINEER EXPECTS THAT HE WILL BE INVOLVED WITH,
PROVIDED AN OPPORTUNITY TO REVIEW, AND INSPECT PRODUCTS AND CONSTRUCTION OF THE
IMPROVEMENTS SHOWN ON THIS PLAN SHEET IN ORDER TO CONFIRM THAT THE CONSTRUCTION OF THE
IMPROVEMENTS ARE INSTALLED IN ACCORDANCE WITH DESIGN CONCEPTS. SHOULD THE DESIGN ENGINEER
NOT BE INVOLVED WITH CONSTRUCTION, HE WILL NOT BE LIABLE FOR CHANGES IN CONDITIONS OR FIELD
CONDITIONS THAT MAY AFFECT THE DESIGN.
1" = 20'
8-2-19
PROJECT 2 - 825 TOBESOFKEE POINT CIRCLE
3755' CONTOUR LINE
STORM SEWER LINE
OVERHEAD POWER, TELEPHONE, TV
ASPHALT
P,T,TV
3751' CONTOUR LINE
GRAPHIC SCALE IN FEET
0 40201020
WATER LINE W
CONTRACTOR TO REMOVE
EXISTING 60" DIA. CMP
±55 LF OF 60" DIA. CLASS III REINFORCED
CONCRETE PIPE. CONTRACTOR TO
FIELD CONFIRM AND SET GRADE TO
PROVIDE MINIMUM SLOPE OF 1.4%.
CLASS 'A' ASPHALT
PAVEMENT REPLACEMENT
DOUBLE ROW OF SENSITIVE
SILT FENCE (TYPE-C)
(TYP.)
30'
15'
25'
30'
PROPOSED TEMPORARY
CONSTRUCTION EASEMENT
(TO BE CENTERED ON EITHER
SIDE OF PROPOSED PIPE)
PROPOSED PERMANENT
EASEMENT (TO BE CENTERED
ON EITHER SIDE OF PROPOSED
PIPE)
Sd1-S
PLAN VIEW
SCALE: 1"=20'
PROFILE VIEW
SCALE: H:1"=20', V:1"=5'
115 SY OF 15" DIA. RIP-RAP
OUTLET PROTECTION
OP
±55 LF OF 60" DIA.
CLASS III REINFORCED
CONCRETE PIPE.
CONTRACTOR SHALL NOT REMOVE
FLAGGED TREES ON SOUTH SIDE OF ROAD.
IF REMOVAL IS DEEMED NECESSARY,
CONTRACTOR SHALL OBTAIN PRIOR
APPROVAL BY MWA.
PROPOSED HEADWALL 2-B. SHALL BE
PRE-CAST 45° WINGWALL REINFORCED
CONCRETE HEADWALL WITH 72" DIA.
OPENING PER GDOT STANDARDS.
± 6 CY OF COMPACTED BACKFILL
BEHIND HEADWALL TO PROMOTE
DRAINAGE AND PREVENT EROSION
AND UNDERMINING OF HEADWALL
±14 CY OF COMPACTED BACKFILL
BEHIND HEADWALL TO PROMOTE
DRAINAGE AND PREVENT EROSION
AND UNDERMINING OF HEADWALL
PROPOSED HEADWALL 2-A. SHALL BE
PRE-CAST 45° WINGWALL REINFORCED
CONCRETE HEADWALL WITH 72" DIA.
OPENING PER GDOT STANDARDS. MUST
FILL IN INVERT WITH CONCRETE APRON
(TO MATCH THICKNESS OF FOOTING)
REVISED AUGUST 2, 2019: UPDATED INFO AND NOTES ON HEADWALLS (ADDENDUM NO. 1)
PROPOSED HEADWALL 2-A. SHALL BE
PRE-CAST 45° WINGWALL REINFORCED
CONCRETE HEADWALL WITH 72" DIA.
OPENING PER GDOT STANDARDS. MUST
FILL IN INVERT WITH CONCRETE APRON
(TO MATCH THICKNESS OF FOOTING)
NOTES:
1. PLEASE REFER TO SUPPLEMENTARY DETAILS FOR HEADWALLS
PROVIDED IN ADDENDUM NO. 1.
2. HEADWALL DESIGN INFORMATION HAS BEEN UPDATED
(ADDENDUM NO. 1). ALL DIMENSIONS HAVE BEEN CONFIRMED
AND CALCULATIONS HAVE BEEN PERFORMED BY A
STRUCTURAL ENGINEER, REGISTERED IN THE STATE OF
GEORGIA. ENGINEER'S SEALS WHO APPEAR ON THIS PAGE ARE
NOT SEALING THE STRUCTURAL DESIGN OF THE HEADWALLS.
PROPOSED HEADWALL 2-B. SHALL BE
PRE-CAST 45° WINGWALL REINFORCED
CONCRETE HEADWALL WITH 72" DIA.
OPENING PER GDOT STANDARDS.
66
"W
X
4
8" C
MP
IN
V:3
99
.6
9
EX
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6"W
X
4
8" C
MP
IN
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97
.4
9
0+00 0+50 0+75
390
400
410
EXISTING
GROUND
ELEVATION
0+25 1+00
EXISTING ROADWAY
APPROX. LOCATION
OF EXISTING 6" DIA.
DIP WATER LINE
1+25 1+50
APPROX. LOCATION
OF EXISTING WATER
SERVICE LINE
NOW OR FORMERLY
JUDSON J. SMITH & FAITH CAGLE
PARCEL K006-0133
DB 9582, PG 365
PB 52, PG 42
1067
1079
218
402.39
GUY
204
404.17
GUY
1070
INV:402.11
15"RCP
INV:401.53
15"RCP
210
-592.51
UTP OHP OHT OHTV
211
-574.59
UTP OHP1 OHT1 OHTV1
212
-589.76
UTP OHP OHT OHTV
213
-589.74
UTP OHP2 OHT2 OHTV2
INV:395.82
60"CMP
215
402.76
GUY
INV:395.86
60"CMP
NOW OR FORMERLY
WAYNE & LINDA MONTGOMERY
PARCEL K006-0132
DB 7901, PG 97
PB 52, PG 42
NOW OR FORMERLY
DONNA A. SMITH &
LORAN DUNCAN SMITH, JR.
PARCEL K006-0123
DB 9235, PG 351
NOW OR FORMERLY
CAREY C. MCPHAIL
PARCEL K006-0302
DB 4020, PG 195
PB 88, PG 955
NOW OR FORMERLY
CAREY C. MCPHAIL
PARCEL K006-0213
DB 4020, PG 194
PB 88, PG 955
NOW OR FORMERLY
HOWARD E. & CAROL S. HIGHTOWER
PARCEL K006-0213
DB 4801, PG 159
PB 52, PG 42
4
0
5
4
0
4
4
0
2
4
0
2
4
0
5
4
0
7
4
0
4
4
0
0
3
9
8
4
0
0
4
0
3
4
0
0
4
0
2
403
405
4
0
7
409
EXISTING
INV. 399.69
ASHLEY HALL ROAD (55' R/W)
XX
XX
EXISTING 15" DIA. CMP
EXISTING
INV. 397.49
3920 ARKWRIGHT RD.(478) 743-7175
DATE
SHEET OF
SCALE
PROJ. NO.
CULVERTS REPAIR / REPLACEMENT (GROUP 3)
MACON WATER AUTHORITY
FOR
JUNE 2019
5020-023-01
SUITE 101(478) 743-1703(FAX) MACON, GEORGIA 31210
BIBB COUNTY, GEORGIA
13
2018 MACON - BIBB COUNTYWIDE STORMWATER
DWG.
No. 30797PROFESSIONAL
D
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EDIT
No. 37584PROFESSIONAL
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MWA-2018 SW
3
1" = 20'
8-2-19
PROJECT 3 - 1067 ASHLEY HALL ROAD
PLAN VIEW
SCALE: 1"=20'
CONTRACTOR TO REMOVE
EXISTING CMP
DOUBLE ROW OF SENSITIVE
SILT FENCE (TYPE-C)
(TYP.)
Sd1-S
±90 LF OF 48"X66" ELLIPTICAL CLASS
III REINFORCED CONCRETE PIPE.
CONTRACTOR TO FIELD CONFIRM
AND SET GRADE TO PROVIDE
MINIMUM SLOPE OF 2.3%.
CLASS 'A' ASPHALT
PAVEMENT REPLACEMENT
PROFILE VIEW
SCALE: H:1"=20', V:1"=5'
405
IRON PIN FOUND
5' CONTOUR LINE
UTILITY POLE
GUY WIRE
WATER METER
WATER VALVE
FIRE HYDRANT
IRRIGATION CONTROL VALVE
STORM SEWER LINE
OVERHEAD POWER, TELEPHONE
AND CATV
ASPHALT
CONCRETE
P,T,TV
WATER LINE W
MAIL BOX
HOSE BIB HB
4091' CONTOUR LINE
N
GRAPHIC SCALE IN FEET
0 40201020
CLASS 'A' CONCRETE
DRIVEWAY PAVEMENT
REPLACEMENT
PROPOSED TEMPORARY
CONSTRUCTION EASEMENT
(TO BE CENTERED ON EITHER
SIDE OF PROPOSED PIPE)
5
0
'
3
0
'
PROPOSED TEMPORARY
CONSTRUCTION EASEMENT
±
3
1
'
3
0
'
DISCLAIMER:
1. THE DESIGN / ENGINEERING WORK SHOWN ON THIS SHEET IS EXCLUSIVELY BASED ON THE TOPOGRAPHY,
EXISTING CONDITIONS, OR DESIGNS BY OTHERS AS REFERENCED. SHOULD ANY OF THE EXISTING CONDITIONS
OR TOPOGRAPHY BE FOUND TO BE DIFFERENT OR CHANGED, THE DESIGN ENGINEER THAT PREPARED THIS
PLAN SHOULD BE CONTACTED PRIOR TO CONSTRUCTING / IMPLEMENTING THIS DESIGN, AND TO DETERMINE IF
DESIGN REVISIONS ARE REQUIRED.
2. THE ENGINEER THAT PREPARED THIS DRAWING HAS ASSUMED THAT THE CONSTRUCTION WILL BE PERFORMED
IN ACCORDANCE WITH THE ENGINEERING INTENT AND COMPLETE CONSTRUCTION SPECIFICATIONS WILL BE
PREPARED TO ACCOMPANY THE DRAWINGS. THE ENGINEER EXPECTS THAT HE WILL BE INVOLVED WITH,
PROVIDED AN OPPORTUNITY TO REVIEW, AND INSPECT PRODUCTS AND CONSTRUCTION OF THE
IMPROVEMENTS SHOWN ON THIS PLAN SHEET IN ORDER TO CONFIRM THAT THE CONSTRUCTION OF THE
IMPROVEMENTS ARE INSTALLED IN ACCORDANCE WITH DESIGN CONCEPTS. SHOULD THE DESIGN ENGINEER
NOT BE INVOLVED WITH CONSTRUCTION, HE WILL NOT BE LIABLE FOR CHANGES IN CONDITIONS OR FIELD
CONDITIONS THAT MAY AFFECT THE DESIGN.
90 SY OF 12" DIA. RIP-RAP
OUTLET PROTECTION
OP
NOTES:
1. EXISTING CONDITION INFORMATION TAKEN FROM THE "TOPOGRAPHIC SURVEY" PREPARED BY WELLSTON
ASSOCIATES LAND SURVEYORS, LLC, DATE OF SURVEY: MARCH 7, 2016.
2. THE UNDERGROUND UTILITIES SHOWN ON THIS DRAWING WERE COMPILED FROM FIELD OBSERVATIONS
WITHOUT BENEFIT OF EXCAVATION. WELLSTON ASSOCIATES LAND SURVEYORS, LLC DOES NOT
GUARANTEE THAT ALL UTILITIES ARE SHOWN. VERIFICATION OF UTILITIES SHOULD BE MADE BY THE
INDIVIDUAL UTILITY COMPANY PRIOR TO ANY CONSTRUCTION.
3. CONTRACTOR SHALL BE RESPONSIBLE FOR ALL UTILITY LOCATES PRIOR TO CONSTRUCTION. DEPTH OF
ALL EXISTING UTILITIES SHALL BE CONFIRMED BY CONTRACTOR PRIOR TO CONSTRUCTION. MATERIALS
FOR ANY REQUIRED WATER OR SEWER SYSTEM RELOCATION WILL BE PROVIDED BY THE MACON WATER
AUTHORITY, BUT INSTALLATION, INCLUDING BYPASS, WILL BE INCIDENTAL TO THE CONSTRUCTION OF THE
INDIVIDUAL PROJECT. CONTRACTOR IS RESPONSIBLE FOR ALL REQUIRED UTILITY RELOCATIONS.
4. CONTRACTOR WILL BE RESPONSIBLE FOR STORM WATER MANAGEMENT AND TRAFFIC CONTROL IN THE
PROJECT AREA DURING CONSTRUCTION. ALL STORMWATER SHALL BE IN ACCORDANCE WITH THE "LOCAL
STORMWATER DESIGN MANUAL FOR MACON - BIBB COUNTY, GEORGIA", LATEST EDITION. IT IS ASSUMED
THAT ALL EXISTING PIPES ARE CURRENTLY DRAINING PROPERLY. CONTRACTOR SHALL NOTIFY ENGINEER
IF EXISTING CONDITIONS DO NOT SUPPORT THIS ASSUMPTION.
5. ALL DISTURBED AREAS SHALL BE STABILIZED WITH EROSION MATTING AND PERMANENT GRASSING. ALL
SEDIMENTATION AND EROSION BMP'S SHALL BE IN ACCORDANCE WITH THE EROSION AND SEDIMENTATION
CONTROL IN GEORGIA HANDBOOK, LATEST EDITION.
6. CONTRACTOR RESPONSIBLE FOR PROVIDING CONTINUED ACCESS (ONE LANE TO REMAIN OPEN) TO
HOMEOWNERS EFFECTED BY ANY CONSTRUCTION RELATED WORK.
7. PROPOSED HEADWALLS SHALL MATCH THE DESIGN OF THE EXISTING HEADWALLS AND SHALL BE IN
ACCORDANCE WITH GDOT STANDARDS. CONTRACTOR SHALL PROVIDE PRECAST OR POUR IN PLACE
HEADWALLS AS SHOWN ON PLANS TO MATCH EXISTING CONDITIONS. CONTRACTOR IS RESPONSIBLE FOR
DETERMINING SIZE AND DESIGN OF HEADWALLS. ANY FIELD CHANGES TO HEADWALL LOCATION, DESIGN,
ETC. REQUESTED BY THE CONTRACTOR SHALL BE PRE-APPROVED BY THE ENGINEER AND AT NO
ADDITIONAL COST TO THE OWNER.
8. CONTRACTOR SHALL SUBMIT DETAILED SHOP DRAWINGS FOR ALL PRECAST OR POUR-IN-PLACE CONCRETE
STRUCTURES.
±
1
1
'
±90 LF OF 48"X66" ELLIPTICAL CLASS
III REINFORCED CONCRETE PIPE.
CONTRACTOR TO FIELD CONFIRM
AND SET GRADE TO PROVIDE
MINIMUM SLOPE OF 2.3%.
± 4 CY OF COMPACTED BACKFILL
BEHIND HEADWALL TO PROMOTE
DRAINAGE AND PREVENT EROSION
AND UNDERMINING OF HEADWALL
± 4 CY OF COMPACTED BACKFILL
BEHIND HEADWALL TO PROMOTE
DRAINAGE AND PREVENT EROSION
AND UNDERMINING OF HEADWALL
NOTES:
1. PLEASE REFER TO SUPPLEMENTARY DETAILS FOR HEADWALLS
PROVIDED IN ADDENDUM NO. 1.
2. HEADWALL DESIGN INFORMATION HAS BEEN UPDATED
(ADDENDUM NO. 1). ALL DIMENSIONS HAVE BEEN CONFIRMED
AND CALCULATIONS HAVE BEEN PERFORMED BY A
STRUCTURAL ENGINEER, REGISTERED IN THE STATE OF
GEORGIA. ENGINEER'S SEALS WHO APPEAR ON THIS PAGE ARE
NOT SEALING THE STRUCTURAL DESIGN OF THE HEADWALLS.
REVISED AUGUST 2, 2019: UPDATED INFO AND NOTES ON HEADWALLS (ADDENDUM NO. 1)
PROPOSED HEADWALL 3-A. SHALL BE
POUR-IN-PLACE 45° WINGWALL
REINFORCED CONCRETE HEADWALL
WITH 60" X 78" ELLIPTICAL OPENING PER
GDOT STANDARDS.
PROPOSED HEADWALL 3-A. SHALL BE
POUR-IN-PLACE 45° WINGWALL
REINFORCED CONCRETE HEADWALL
WITH 60" X 78" ELLIPTICAL OPENING PER
GDOT STANDARDS.
PROPOSED HEADWALL 3-B. SHALL BE
POUR-IN-PLACE 45° WINGWALL
REINFORCED CONCRETE HEADWALL
WITH 60" X 78" ELLIPTICAL OPENING PER
GDOT STANDARDS. HEADWALL SHALL
INCORPORATE EXISTING 15" DIA.
STORMWATER PIPE.
PROPOSED HEADWALL 3-B. SHALL BE
POUR-IN-PLACE 45° WINGWALL
REINFORCED CONCRETE HEADWALL
WITH 60" X 78" ELLIPTICAL OPENING PER
GDOT STANDARDS. HEADWALL SHALL
INCORPORATE EXISTING 15" DIA.
STORMWATER PIPE.
A
P
P
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F
L
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F
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F
L
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D
W
A
Y
AP
PR
OX
IM
AT
E F
LO
OD
Z
ON
E
ZO
NE
A
E
ZO
NE
X
1/2"REBAR
457
408.13
UTP OHP OHT
SSMH
RIM: 408.29
INV A:404.81
A
B
8
"
D
I
P
PARCEL:L051-0121
111 GEORGETOWN CT
NOW OR FORMERLY
STEVEN H & TRACEY L SCHWARTZ
DB 2899, PG 189
PB 75, PG 73
PARCEL:L051-0120
109 GEORGETOWN CT
NOW OR FORMERLY
JAMES O. JR & ZENEPHIA A. GLORE
DB 1754, PG 653
PB 87, PG 720
PARCEL:L052-0257
NOW OR FORMERLY
TATTNAL SQUARE BAPTIST CHURCH
DB 2780, PG 240
PB 87, PG 720
PARCEL:L044-0156
800 WESLEYAN DR
NOW OR FORMERLY
HARLAN L HIGHBAUGH
DB 2928, PG 48
PB 88, PG 404
PARCEL:L043-0180
105 TROJAN TRL
NOW OR FORMERLY
RIVERA RENE O RAMIREZ
DB 10139, PG 1
PB 86, PG 47
EXISTING 78" X 54"
ELLIPTICAL CMP
EXISTING
INV. 405.49
XX
XX
TROJAN TRAIL (55' R/W)
EXISTING
INV. 405.96
EX
IS
TIN
G H
EA
DW
ALL
IN
V:405.96
EX
IS
TIN
G H
EA
DW
ALL
IN
V:405.49
0+00 0+25 0+50 0+75
400
410
420
EXISTING
GROUND
ELEVATION
EXISTING
ROADWAY
1+00
APPROX. LOCATION
OF EXISTING 6"DIA.
DIP WATER LINE
3920 ARKWRIGHT RD.(478) 743-7175
DATE
SHEET OF
SCALE
PROJ. NO.
CULVERTS REPAIR / REPLACEMENT (GROUP 3)
MACON WATER AUTHORITY
FOR
JUNE 2019
5020-023-01
SUITE 101(478) 743-1703(FAX) MACON, GEORGIA 31210
BIBB COUNTY, GEORGIA
13
2018 MACON - BIBB COUNTYWIDE STORMWATER
DWG.
No. 30797PROFESSIONAL
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EDIT
No. 37584PROFESSIONAL
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MWA-2018 SW
4
1" = 20'
8-2-19
PROJECT 4 - 105 TROJAN TRAIL
4305' CONTOUR LINE
SANITARY SEWER MANHOLE
WATER METER
STORM SEWER LINE
SANITARY SEWER LINE
UNDERGROUND POWER
ASPHALT
LEGEND
UP
SAN
UNDERGROUND TELEPHONE UT
WATER LINE W
CLEAN OUT
TRANSFORMER
GAS LINE
4281' CONTOUR LINE
PLAN VIEW
SCALE: 1"=20'
CONTRACTOR TO REMOVE
EXISTING CMP
DOUBLE ROW OF SENSITIVE
SILT FENCE (TYPE-C)
(TYP.)
Sd1-S
±53 LF OF 78"X54" ELLIPTICAL CLASS
III REINFORCED CONCRETE PIPE.
CONTRACTOR TO FIELD CONFIRM
AND SET GRADE TO MATCH EXISTING
SLOPE
CLASS 'A' ASPHALT
PAVEMENT REPLACEMENT
N
GRAPHIC SCALE IN FEET
0 40201020
3
0
'
PROPOSED PERMANENT
EASEMENT (TO BE CENTERED
ON EITHER SIDE OF PROPOSED
PIPE)
PROPOSED PERMANENT
EASEMENT (TO BE
CENTERED ON EITHER SIDE
OF PROPOSED PIPE)
DISCLAIMER:
1. THE DESIGN / ENGINEERING WORK SHOWN ON THIS SHEET IS EXCLUSIVELY BASED ON THE TOPOGRAPHY,
EXISTING CONDITIONS, OR DESIGNS BY OTHERS AS REFERENCED. SHOULD ANY OF THE EXISTING CONDITIONS
OR TOPOGRAPHY BE FOUND TO BE DIFFERENT OR CHANGED, THE DESIGN ENGINEER THAT PREPARED THIS
PLAN SHOULD BE CONTACTED PRIOR TO CONSTRUCTING / IMPLEMENTING THIS DESIGN, AND TO DETERMINE IF
DESIGN REVISIONS ARE REQUIRED.
2. THE ENGINEER THAT PREPARED THIS DRAWING HAS ASSUMED THAT THE CONSTRUCTION WILL BE PERFORMED
IN ACCORDANCE WITH THE ENGINEERING INTENT AND COMPLETE CONSTRUCTION SPECIFICATIONS WILL BE
PREPARED TO ACCOMPANY THE DRAWINGS. THE ENGINEER EXPECTS THAT HE WILL BE INVOLVED WITH,
PROVIDED AN OPPORTUNITY TO REVIEW, AND INSPECT PRODUCTS AND CONSTRUCTION OF THE
IMPROVEMENTS SHOWN ON THIS PLAN SHEET IN ORDER TO CONFIRM THAT THE CONSTRUCTION OF THE
IMPROVEMENTS ARE INSTALLED IN ACCORDANCE WITH DESIGN CONCEPTS. SHOULD THE DESIGN ENGINEER
NOT BE INVOLVED WITH CONSTRUCTION, HE WILL NOT BE LIABLE FOR CHANGES IN CONDITIONS OR FIELD
CONDITIONS THAT MAY AFFECT THE DESIGN.
90 SY OF 12" DIA. RIP-RAP
OUTLET PROTECTION
OP
±
4
3
'
±
2
4
'
±
2
4
'
±
4
3
'
3
0
'
NOTES:
1. EXISTING CONDITION INFORMATION TAKEN FROM THE "TOPOGRAPHIC SURVEY" PREPARED BY WELLSTON
ASSOCIATES LAND SURVEYORS, LLC, DATE OF SURVEY: DECEMBER 2018.
2. THE UNDERGROUND UTILITIES SHOWN ON THIS DRAWING WERE COMPILED FROM FIELD OBSERVATIONS
WITHOUT BENEFIT OF EXCAVATION. WELLSTON ASSOCIATES LAND SURVEYORS, LLC DOES NOT
GUARANTEE THAT ALL UTILITIES ARE SHOWN. VERIFICATION OF UTILITIES SHOULD BE MADE BY THE
INDIVIDUAL UTILITY COMPANY PRIOR TO ANY CONSTRUCTION.
3. CONTRACTOR SHALL BE RESPONSIBLE FOR ALL UTILITY LOCATES PRIOR TO CONSTRUCTION. DEPTH OF
ALL EXISTING UTILITIES SHALL BE CONFIRMED BY CONTRACTOR PRIOR TO CONSTRUCTION. MATERIALS
FOR ANY REQUIRED WATER OR SEWER SYSTEM RELOCATION WILL BE PROVIDED BY THE MACON WATER
AUTHORITY, BUT INSTALLATION, INCLUDING BYPASS, WILL BE INCIDENTAL TO THE CONSTRUCTION OF THE
INDIVIDUAL PROJECT. CONTRACTOR IS RESPONSIBLE FOR ALL REQUIRED UTILITY RELOCATIONS.
4. CONTRACTOR WILL BE RESPONSIBLE FOR STORM WATER MANAGEMENT AND TRAFFIC CONTROL IN THE
PROJECT AREA DURING CONSTRUCTION. ALL STORMWATER SHALL BE IN ACCORDANCE WITH THE "LOCAL
STORMWATER DESIGN MANUAL FOR MACON - BIBB COUNTY, GEORGIA", LATEST EDITION. IT IS ASSUMED
THAT ALL EXISTING PIPES ARE CURRENTLY DRAINING PROPERLY. CONTRACTOR SHALL NOTIFY ENGINEER
IF EXISTING CONDITIONS DO NOT SUPPORT THIS ASSUMPTION.
5. ALL DISTURBED AREAS SHALL BE STABILIZED WITH EROSION MATTING AND PERMANENT GRASSING. ALL
SEDIMENTATION AND EROSION BMP'S SHALL BE IN ACCORDANCE WITH THE EROSION AND SEDIMENTATION
CONTROL IN GEORGIA HANDBOOK, LATEST EDITION.
6. CONTRACTOR RESPONSIBLE FOR PROVIDING CONTINUED ACCESS (ONE LANE TO REMAIN OPEN) TO
HOMEOWNERS EFFECTED BY ANY CONSTRUCTION RELATED WORK.
7. PROPOSED HEADWALLS SHALL MATCH THE DESIGN OF THE EXISTING HEADWALLS AND SHALL BE IN
ACCORDANCE WITH GDOT STANDARDS. CONTRACTOR SHALL PROVIDE PRECAST OR POUR IN PLACE
HEADWALLS AS SHOWN ON PLANS TO MATCH EXISTING CONDITIONS. CONTRACTOR IS RESPONSIBLE FOR
DETERMINING SIZE AND DESIGN OF HEADWALLS. ANY FIELD CHANGES TO HEADWALL LOCATION, DESIGN,
ETC. REQUESTED BY THE CONTRACTOR SHALL BE PRE-APPROVED BY THE ENGINEER AND AT NO
ADDITIONAL COST TO THE OWNER.
8. CONTRACTOR SHALL SUBMIT DETAILED SHOP DRAWINGS FOR ALL PRECAST OR POUR-IN-PLACE CONCRETE
STRUCTURES.
±53 LF OF 78"X54" ELLIPTICAL CLASS
III REINFORCED CONCRETE PIPE.
CONTRACTOR TO FIELD CONFIRM
AND SET GRADE TO MATCH EXISTING
SLOPE
PROFILE VIEW
SCALE: H:1"=20', V:1"=5'
± 2 CY OF COMPACTED BACKFILL
BEHIND HEADWALL TO PROMOTE
DRAINAGE AND PREVENT EROSION
AND UNDERMINING OF HEADWALL
± 2 CY OF COMPACTED BACKFILL
BEHIND HEADWALL TO PROMOTE
DRAINAGE AND PREVENT EROSION
AND UNDERMINING OF HEADWALL
NOTES:
1. PLEASE REFER TO SUPPLEMENTARY DETAILS FOR HEADWALLS
PROVIDED IN ADDENDUM NO. 1.
2. HEADWALL DESIGN INFORMATION HAS BEEN UPDATED
(ADDENDUM NO. 1). ALL DIMENSIONS HAVE BEEN CONFIRMED
AND CALCULATIONS HAVE BEEN PERFORMED BY A
STRUCTURAL ENGINEER, REGISTERED IN THE STATE OF
GEORGIA. ENGINEER'S SEALS WHO APPEAR ON THIS PAGE ARE
NOT SEALING THE STRUCTURAL DESIGN OF THE HEADWALLS.
REVISED AUGUST 2, 2019: UPDATED INFO AND NOTES ON HEADWALLS (ADDENDUM NO. 1)
PROPOSED HEADWALL 4-A. SHALL BE
PRE-CAST 45° WINGWALL REINFORCED
CONCRETE HEADWALL WITH 66" x 90"
ELLIPTICAL OPENING PER GDOT STANDARDS.
MUST FILL IN INVERT WITH CONCRETE APRON
(TO MATCH THICKNESS OF FOOTING)
PROPOSED HEADWALL 4-B. SHALL BE
PRE-CAST 45° WINGWALL REINFORCED
CONCRETE HEADWALL WITH 66" x 90"
ELLIPTICAL OPENING PER GDOT STANDARDS.
MUST FILL IN INVERT WITH CONCRETE APRON
(TO MATCH THICKNESS OF FOOTING)
PROPOSED HEADWALL 4-B. SHALL BE
PRE-CAST 45° WINGWALL REINFORCED
CONCRETE HEADWALL WITH 66" x 90"
ELLIPTICAL OPENING PER GDOT STANDARDS.
MUST FILL IN INVERT WITH CONCRETE APRON
(TO MATCH THICKNESS OF FOOTING)
PROPOSED HEADWALL 4-A. SHALL BE
PRE-CAST 45° WINGWALL REINFORCED
CONCRETE HEADWALL WITH 66" x 90"
ELLIPTICAL OPENING PER GDOT STANDARDS.
MUST FILL IN INVERT WITH CONCRETE APRON
(TO MATCH THICKNESS OF FOOTING)
EX
IS
TIN
G C
MP
IN
V:4
67
.8
4
0+00 0+50
360
370
380
EXISTING
GROUND
ELEVATION
0+25
EX
IS
TIN
G C
MP
IN
V:46
6.0
0
APPROX. LOCATION OF
EXISTING GAS LINE
1+00
EXISTING
ROADWAY
APPROX. LOCATION OF
EXISTING 6" DIA. DIP
WATERLINE
1/2"REBAR DIST
ANGLE IRON
1/2" REBAR
233
-509.30
UTP OHP OHTV
234
-513.77
UTP OHP OHTV
NOW OR FORMERLY
EARL M. & DOLLIE DAVIS
PARCEL F010-0043
DB 1606, PG 699
PB 55, PG 60
NOW OR FORMERLY
RICHARD H. & LOTTE MCNATT
PARCEL G010-0014
DB 1620, PG 39
PB 55, PG 60
NOW OR FORMERLY
WILLIAM G. SR. & DEBRA Z. SOWELL
PARCEL G010-0037
DB 1621, PG 747
PB 55, PG 60
467
468
4
6
7
4
6
94
7
0
4
6
8
466
4
7
0
469
4
7
0
4
7
1
EXISTING
INV. 467.84
W
E
S
T
P
O
IN
T
C
IR
C
L
E
(
5
5
'R
/W
)
X
X
X
X
EXISTING 10'
DRAINAGE
EASEMENT
EXISTING
INV. 466.00
5
1" = 20'
8-2-19
PROJECT 5 - 3676 WEST POINT CIRCLE
PLAN VIEW
SCALE: 1"=20'
CONTRACTOR TO REMOVE
EXISTING 24" DIA. CMP
DOUBLE ROW OF SENSITIVE
SILT FENCE (TYPE-C)
(TYP.)
Sd1-S
CLASS 'A' ASPHALT
PAVEMENT REPLACEMENT
PROFILE VIEW
SCALE: H:1"=20', V:1"=5'
PROJECT NO. 3 WAS COMPLETED
DURING THE PREVIOUS SPLOST REPAIR
WORK. THIS PROJECT IS NOT INCLUDED
IN THIS PROJECT SCOPE.
950
IRON PIN FOUND
PROPERTY LINE
BUILDING SETBACK LINE
5' CONTOUR LINE
OVERHEAD POWER, TELEPHONE AND CATVP,T,TV
WATER LINE W
GAS LINE G
PINE TREE
UNDERGROUND TELEPHONE UT
9481' CONTOUR LINE
N
ASPHALT
±35 LF OF 24" DIA. CLASS III REINFORCED
CONCRETE PIPE. CONTRACTOR TO FIELD
CONFIRM AND SET GRADE TO PROVIDE
MINIMUM SLOPE OF 5.25%.
DISCLAIMER:
1. THE DESIGN / ENGINEERING WORK SHOWN ON THIS SHEET IS EXCLUSIVELY BASED ON THE TOPOGRAPHY,
EXISTING CONDITIONS, OR DESIGNS BY OTHERS AS REFERENCED. SHOULD ANY OF THE EXISTING CONDITIONS
OR TOPOGRAPHY BE FOUND TO BE DIFFERENT OR CHANGED, THE DESIGN ENGINEER THAT PREPARED THIS
PLAN SHOULD BE CONTACTED PRIOR TO CONSTRUCTING / IMPLEMENTING THIS DESIGN, AND TO DETERMINE IF
DESIGN REVISIONS ARE REQUIRED.
2. THE ENGINEER THAT PREPARED THIS DRAWING HAS ASSUMED THAT THE CONSTRUCTION WILL BE PERFORMED
IN ACCORDANCE WITH THE ENGINEERING INTENT AND COMPLETE CONSTRUCTION SPECIFICATIONS WILL BE
PREPARED TO ACCOMPANY THE DRAWINGS. THE ENGINEER EXPECTS THAT HE WILL BE INVOLVED WITH,
PROVIDED AN OPPORTUNITY TO REVIEW, AND INSPECT PRODUCTS AND CONSTRUCTION OF THE
IMPROVEMENTS SHOWN ON THIS PLAN SHEET IN ORDER TO CONFIRM THAT THE CONSTRUCTION OF THE
IMPROVEMENTS ARE INSTALLED IN ACCORDANCE WITH DESIGN CONCEPTS. SHOULD THE DESIGN ENGINEER
NOT BE INVOLVED WITH CONSTRUCTION, HE WILL NOT BE LIABLE FOR CHANGES IN CONDITIONS OR FIELD
CONDITIONS THAT MAY AFFECT THE DESIGN.
3920 ARKWRIGHT RD.(478) 743-7175
DATE
SHEET OF
SCALE
PROJ. NO.
CULVERTS REPAIR / REPLACEMENT (GROUP 3)
MACON WATER AUTHORITY
FOR
JUNE 2019
5020-023-01
SUITE 101(478) 743-1703(FAX) MACON, GEORGIA 31210
BIBB COUNTY, GEORGIA
13
2018 MACON - BIBB COUNTYWIDE STORMWATER
DWG.
No. 30797PROFESSIONAL
D
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EDIT
No. 37584PROFESSIONAL
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MWA-2018 SW
20 SY OF 6" DIA. RIP-RAP
OUTLET PROTECTION
OP
NOTES:
1. EXISTING CONDITION INFORMATION TAKEN FROM THE "TOPOGRAPHIC SURVEY" PREPARED BY WELLSTON
ASSOCIATES LAND SURVEYORS, LLC, DATE OF SURVEY: MARCH 7, 2016.
2. THE UNDERGROUND UTILITIES SHOWN ON THIS DRAWING WERE COMPILED FROM FIELD OBSERVATIONS
WITHOUT BENEFIT OF EXCAVATION. WELLSTON ASSOCIATES LAND SURVEYORS, LLC DOES NOT
GUARANTEE THAT ALL UTILITIES ARE SHOWN. VERIFICATION OF UTILITIES SHOULD BE MADE BY THE
INDIVIDUAL UTILITY COMPANY PRIOR TO ANY CONSTRUCTION.
3. CONTRACTOR SHALL BE RESPONSIBLE FOR ALL UTILITY LOCATES PRIOR TO CONSTRUCTION. DEPTH OF
ALL EXISTING UTILITIES SHALL BE CONFIRMED BY CONTRACTOR PRIOR TO CONSTRUCTION. MATERIALS
FOR ANY REQUIRED WATER OR SEWER SYSTEM RELOCATION WILL BE PROVIDED BY THE MACON WATER
AUTHORITY, BUT INSTALLATION, INCLUDING BYPASS, WILL BE INCIDENTAL TO THE CONSTRUCTION OF THE
INDIVIDUAL PROJECT. CONTRACTOR IS RESPONSIBLE FOR ALL REQUIRED UTILITY RELOCATIONS.
4. CONTRACTOR WILL BE RESPONSIBLE FOR STORM WATER MANAGEMENT AND TRAFFIC CONTROL IN THE
PROJECT AREA DURING CONSTRUCTION. ALL STORMWATER SHALL BE IN ACCORDANCE WITH THE "LOCAL
STORMWATER DESIGN MANUAL FOR MACON - BIBB COUNTY, GEORGIA", LATEST EDITION. IT IS ASSUMED
THAT ALL EXISTING PIPES ARE CURRENTLY DRAINING PROPERLY. CONTRACTOR SHALL NOTIFY ENGINEER
IF EXISTING CONDITIONS DO NOT SUPPORT THIS ASSUMPTION.
5. ALL DISTURBED AREAS SHALL BE STABILIZED WITH EROSION MATTING AND PERMANENT GRASSING. ALL
SEDIMENTATION AND EROSION BMP'S SHALL BE IN ACCORDANCE WITH THE EROSION AND SEDIMENTATION
CONTROL IN GEORGIA HANDBOOK, LATEST EDITION.
6. CONTRACTOR RESPONSIBLE FOR PROVIDING CONTINUED ACCESS (ONE LANE TO REMAIN OPEN) TO
HOMEOWNERS EFFECTED BY ANY CONSTRUCTION RELATED WORK.
7. PROPOSED HEADWALLS SHALL MATCH THE DESIGN OF THE EXISTING HEADWALLS AND SHALL BE IN
ACCORDANCE WITH GDOT STANDARDS. CONTRACTOR SHALL PROVIDE PRECAST OR POUR IN PLACE
HEADWALLS AS SHOWN ON PLANS TO MATCH EXISTING CONDITIONS. CONTRACTOR IS RESPONSIBLE FOR
DETERMINING SIZE AND DESIGN OF HEADWALLS. ANY FIELD CHANGES TO HEADWALL LOCATION, DESIGN,
ETC. REQUESTED BY THE CONTRACTOR SHALL BE PRE-APPROVED BY THE ENGINEER AND AT NO
ADDITIONAL COST TO THE OWNER.
8. CONTRACTOR SHALL SUBMIT DETAILED SHOP DRAWINGS FOR ALL PRECAST OR POUR-IN-PLACE CONCRETE
STRUCTURES.
±35 LF OF 24" DIA. CLASS III REINFORCED
CONCRETE PIPE. CONTRACTOR TO FIELD
CONFIRM AND SET GRADE TO PROVIDE
MINIMUM SLOPE OF 5.25%.
PROPOSED HEADWALL 5-A. SHALL BE
PRE-CAST 45° WINGWALL REINFORCED
CONCRETE HEADWALL WITH 36" DIA.
OPENING PER GDOT 1001-B STANDARDS
PROPOSED HEADWALL 5-B. SHALL BE
PRE-CAST 45° WINGWALL REINFORCED
CONCRETE HEADWALL WITH 36" DIA.
OPENING PER GDOT 1001-B STANDARDS
CONTRACTOR TO RE-GRADE AND
RE-WORK BACKFILL BEHIND HEADWALL
TO PROMOTE DRAINAGE AROUND
HEADWALL AND PREVENT EROSION AND
UNDERMINING OF HEADWALL
± 3 CY OF COMPACTED BACKFILL
BEHIND HEADWALL TO PROMOTE
DRAINAGE AND PREVENT EROSION
AND UNDERMINING OF HEADWALL
PROPOSED HEADWALL 5-A. SHALL BE
PRE-CAST 45° WINGWALL REINFORCED
CONCRETE HEADWALL WITH 36" DIA.
OPENING PER GDOT 1001-B STANDARDS
PROPOSED HEADWALL 5-B. SHALL BE
PRE-CAST 45° WINGWALL REINFORCED
CONCRETE HEADWALL WITH 36" DIA.
OPENING PER GDOT 1001-B STANDARDS
NOTES:
1. PLEASE REFER TO SUPPLEMENTARY DETAILS FOR HEADWALLS
PROVIDED IN ADDENDUM NO. 1.
2. HEADWALL DESIGN INFORMATION HAS BEEN UPDATED
(ADDENDUM NO. 1). ALL DIMENSIONS HAVE BEEN CONFIRMED
AND CALCULATIONS HAVE BEEN PERFORMED BY A
STRUCTURAL ENGINEER, REGISTERED IN THE STATE OF
GEORGIA. ENGINEER'S SEALS WHO APPEAR ON THIS PAGE ARE
NOT SEALING THE STRUCTURAL DESIGN OF THE HEADWALLS.
REVISED AUGUST 2, 2019: UPDATED INFO AND NOTES ON HEADWALLS (ADDENDUM NO. 1)
1/2" REBAR
INV:479.89
24"CMP
235
-510.61
UTP OHP OHT OHTV
SSMH (ASPHALTED)
RIM: 483.60
4
8
9
4
8
8
4
8
7
486
485
484
4
8
3
4
8
2
4
8
1
4
8
5
4
8
4
483
4
8
3
4
8
4
4
8
2
4
8
1
4
8
0
4
7
9
4
7
8
4
7
7
4
7
5
4
7
8
4
7
9
4
8
0
4
8
1
4
8
2
4
8
0
482
4
7
8
4
7
9
4
8
0
4
8
1
4
8
2
4
8
3
4
8
4
4
8
3
4
8
2
4
8
1
N
INV:478.23
24"CMP
EXISTING INV:477.46
EXISTING INV:478.66
EXISTING
INV:475.99
W
O
O
D
F
I
E
L
D
D
R
I
V
E
(
8
0
'
R
/
W
)
M
A
C
O
N
W
E
S
T
D
R
I
V
E
(
6
0
'
R
/
W
)
X
X
X
X
X
X
EXISTING
INV:475.04
EX
IS
TIN
G
42" X
28" C
MP
IN
V:475.04
EX
IS
TIN
G
42" X
28" C
MP
IN
V:475.99
0+00 0+50 0+75
470
480
490
EXISTING
GROUND
ELEVATION
0+25 1+00
EXISTING ROADWAY
APPROX. LOCATION
OF EXISTING 8" DIA.
WATER LINE
APPROX. LOCATION OF
EXISTING GAS LINE
APPROX. LOCATION OF
EXISTING SANITARY
SEWER LINE
EX
IS
TIN
G
18" C
MP
IN
V:477.46
EX
IS
TIN
G
18" C
MP
IN
V:478.66
0+00 0+50 0+75
470
480
490
EXISTING
GROUND
ELEVATION
0+25 1+00
EXISTING ROADWAY
APPROX. LOCATION OF
EXISTING GAS LINE
APPROX. LOCATION
OF EXISTING 8" DIA.
WATER LINE
3920 ARKWRIGHT RD.(478) 743-7175
DATE
SHEET OF
SCALE
PROJ. NO.
CULVERTS REPAIR / REPLACEMENT (GROUP 3)
MACON WATER AUTHORITY
FOR
JUNE 2019
5020-023-01
SUITE 101(478) 743-1703(FAX) MACON, GEORGIA 31210
BIBB COUNTY, GEORGIA
13
2018 MACON - BIBB COUNTYWIDE STORMWATER
DWG.
No. 30797PROFESSIONAL
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EDIT
No. 37584PROFESSIONAL
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MWA-2018 SW
7
1" = 20'
8-2-19
PLAN VIEW
SCALE: 1"=20'
CONTRACTOR TO REMOVE
EXISTING 42" X 28" CMP
CLASS "A" ASPHALT
PAVEMENT REPLACEMENT
DOUBLE ROW OF SENSITIVE
SILT FENCE (TYPE-C)
(TYP.)
Sd1-S
PROFILE VIEW - 42" DIA
SCALE: H:1"=20', V:1"=5'
480
IRON PIN FOUND
PROPERTY LINE
5' CONTOUR LINE
SANITARY SEWER MANHOLE
UTILITY POLE
STORM SEWER LINE
SANITARY SEWER LINE
OVERHEAD POWER, TELEPHONE
AND CATV
ASPHALT
P,T,TV
SAN
LEGEND
4791' CONTOUR LINE
GRAPHIC SCALE IN FEET
0 40201020
±61 LF OF 42" DIA. CLASS III REINFORCED
CONCRETE PIPE. CONTRACTOR TO FIELD
CONFIRM AND SET GRADE TO PROVIDE
MINIMUM SLOPE OF 1.4%.
DISCLAIMER:
1. THE DESIGN / ENGINEERING WORK SHOWN ON THIS SHEET IS EXCLUSIVELY BASED ON THE TOPOGRAPHY,
EXISTING CONDITIONS, OR DESIGNS BY OTHERS AS REFERENCED. SHOULD ANY OF THE EXISTING CONDITIONS
OR TOPOGRAPHY BE FOUND TO BE DIFFERENT OR CHANGED, THE DESIGN ENGINEER THAT PREPARED THIS
PLAN SHOULD BE CONTACTED PRIOR TO CONSTRUCTING / IMPLEMENTING THIS DESIGN, AND TO DETERMINE IF
DESIGN REVISIONS ARE REQUIRED.
2. THE ENGINEER THAT PREPARED THIS DRAWING HAS ASSUMED THAT THE CONSTRUCTION WILL BE PERFORMED
IN ACCORDANCE WITH THE ENGINEERING INTENT AND COMPLETE CONSTRUCTION SPECIFICATIONS WILL BE
PREPARED TO ACCOMPANY THE DRAWINGS. THE ENGINEER EXPECTS THAT HE WILL BE INVOLVED WITH,
PROVIDED AN OPPORTUNITY TO REVIEW, AND INSPECT PRODUCTS AND CONSTRUCTION OF THE
IMPROVEMENTS SHOWN ON THIS PLAN SHEET IN ORDER TO CONFIRM THAT THE CONSTRUCTION OF THE
IMPROVEMENTS ARE INSTALLED IN ACCORDANCE WITH DESIGN CONCEPTS. SHOULD THE DESIGN ENGINEER
NOT BE INVOLVED WITH CONSTRUCTION, HE WILL NOT BE LIABLE FOR CHANGES IN CONDITIONS OR FIELD
CONDITIONS THAT MAY AFFECT THE DESIGN.
PROJECT 10 - 3760 WOODFIELD DRIVE
CONTRACTOR TO REMOVE
EXISTING 18" DIA. CMP
±57 LF OF 18" DIA. CLASS III REINFORCED
CONCRETE PIPE. CONTRACTOR TO FIELD
CONFIRM AND SET GRADE TO PROVIDE
MINIMUM SLOPE OF 2.1%.
200 SY OF 18" DIA. RIP-RAP
OUTLET PROTECTION
OP
50 SY OF 9" DIA. RIP-RAP
OUTLET PROTECTION
OP
NOTES:
1. EXISTING CONDITION INFORMATION TAKEN FROM THE "TOPOGRAPHIC SURVEY" PREPARED BY WELLSTON
ASSOCIATES LAND SURVEYORS, LLC, DATED OF SURVEY: MARCH 7, 2016.
2. THE UNDERGROUND UTILITIES SHOWN ON THIS DRAWING WERE COMPILED FROM FIELD OBSERVATIONS
WITHOUT BENEFIT OF EXCAVATION. WELLSTON ASSOCIATES LAND SURVEYORS, LLC DOES NOT
GUARANTEE THAT ALL UTILITIES ARE SHOWN. VERIFICATION OF UTILITIES SHOULD BE MADE BY THE
INDIVIDUAL UTILITY COMPANY PRIOR TO ANY CONSTRUCTION.
3. CONTRACTOR SHALL BE RESPONSIBLE FOR ALL UTILITY LOCATES PRIOR TO CONSTRUCTION. DEPTH OF
ALL EXISTING UTILITIES SHALL BE CONFIRMED BY CONTRACTOR PRIOR TO CONSTRUCTION. MATERIALS
FOR ANY REQUIRED WATER OR SEWER SYSTEM RELOCATION WILL BE PROVIDED BY THE MACON WATER
AUTHORITY, BUT INSTALLATION, INCLUDING BYPASS, WILL BE INCIDENTAL TO THE CONSTRUCTION OF THE
INDIVIDUAL PROJECT. CONTRACTOR IS RESPONSIBLE FOR ALL REQUIRED UTILITY RELOCATIONS.
4. CONTRACTOR WILL BE RESPONSIBLE FOR STORM WATER MANAGEMENT AND TRAFFIC CONTROL IN THE
PROJECT AREA DURING CONSTRUCTION. ALL STORMWATER SHALL BE IN ACCORDANCE WITH THE "LOCAL
STORMWATER DESIGN MANUAL FOR MACON - BIBB COUNTY, GEORGIA", LATEST EDITION. IT IS ASSUMED
THAT ALL EXISTING PIPES ARE CURRENTLY DRAINING PROPERLY. CONTRACTOR SHALL NOTIFY ENGINEER
IF EXISTING CONDITIONS DO NOT SUPPORT THIS ASSUMPTION.
5. ALL DISTURBED AREAS SHALL BE STABILIZED WITH EROSION MATTING AND PERMANENT GRASSING. ALL
SEDIMENTATION AND EROSION BMP'S SHALL BE IN ACCORDANCE WITH THE EROSION AND SEDIMENTATION
CONTROL IN GEORGIA HANDBOOK, LATEST EDITION.
6. CONTRACTOR RESPONSIBLE FOR PROVIDING CONTINUED ACCESS (ONE LANE TO REMAIN OPEN) TO
HOMEOWNERS EFFECTED BY ANY CONSTRUCTION RELATED WORK.
7. PROPOSED HEADWALLS SHALL MATCH THE DESIGN OF THE EXISTING HEADWALLS AND SHALL BE IN
ACCORDANCE WITH GDOT STANDARDS. CONTRACTOR SHALL PROVIDE PRECAST OR POUR IN PLACE
HEADWALLS AS SHOWN ON PLANS TO MATCH EXISTING CONDITIONS. CONTRACTOR IS RESPONSIBLE FOR
DETERMINING SIZE AND DESIGN OF HEADWALLS. ANY FIELD CHANGES TO HEADWALL LOCATION, DESIGN,
ETC. REQUESTED BY THE CONTRACTOR SHALL BE PRE-APPROVED BY THE ENGINEER AND AT NO
ADDITIONAL COST TO THE OWNER.
8. CONTRACTOR SHALL SUBMIT DETAILED SHOP DRAWINGS FOR ALL PRECAST OR POUR-IN-PLACE CONCRETE
STRUCTURES.
±61 LF OF 42" DIA. CLASS III REINFORCED
CONCRETE PIPE. CONTRACTOR TO FIELD
CONFIRM AND SET GRADE TO PROVIDE
MINIMUM SLOPE OF 1.4%.
PROFILE VIEW - 18" DIA
SCALE: H:1"=20', V:1"=5'
±57 LF OF 18" DIA. CLASS III REINFORCED
CONCRETE PIPE. CONTRACTOR TO FIELD
CONFIRM AND SET GRADE TO PROVIDE
MINIMUM SLOPE OF 2.1%.
PROPOSED HEADWALL 10-D. SHALL BE
PRE-CAST 45° WINGWALL REINFORCED
CONCRETE HEADWALL WITH 54" DIA. OPENING
PER GDOT 1001-B STANDARDS. MUST FILL IN
INVERT WITH CONCRETE APRON (TO MATCH
THICKNESS OF FOOTING)
PROPOSED HEADWALL 10-C. SHALL BE
PRE-CAST STRAIGHT WALL REINFORCED
CONCRETE HEADWALL WITH 54" DIA.
OPENING PER GDOT 1001-B STANDARDS
PROPOSED HEADWALL 10-A. SHALL BE
PRE-CAST L-SHAPED REINFORCED
CONCRETE HEADWALL WITH 30" DIA.
OPENING PER GDOT 1001-B STANDARDS
PROPOSED HEADWALL 10-B. SHALL BE
PRE-CAST 45° WINGWALL REINFORCED
CONCRETE HEADWALL WITH 30" DIA.
OPENING PER GDOT 1001-B STANDARDS
± 9 CY OF COMPACTED BACKFILL
BEHIND HEADWALL TO PROMOTE
DRAINAGE AND PREVENT EROSION
AND UNDERMINING OF HEADWALL
± 2 CY OF COMPACTED BACKFILL
BEHIND HEADWALL TO PROMOTE
DRAINAGE AND PREVENT EROSION
AND UNDERMINING OF HEADWALL
± 2 CY OF COMPACTED BACKFILL
BEHIND HEADWALL TO PROMOTE
DRAINAGE AND PREVENT EROSION
AND UNDERMINING OF HEADWALL
± 2 CY OF COMPACTED BACKFILL
BEHIND HEADWALL TO PROMOTE
DRAINAGE AND PREVENT EROSION
AND UNDERMINING OF HEADWALL
PROPOSED HEADWALL 10-A. SHALL BE
PRE-CAST L-SHAPED REINFORCED
CONCRETE HEADWALL WITH 30" DIA.
OPENING PER GDOT 1001-B STANDARDS
PROPOSED HEADWALL 10-B. SHALL BE
PRE-CAST 45° WINGWALL REINFORCED
CONCRETE HEADWALL WITH 30" DIA.
OPENING PER GDOT 1001-B STANDARDS
PROPOSED HEADWALL 10-C. SHALL BE
PRE-CAST STRAIGHT WALL REINFORCED
CONCRETE HEADWALL WITH 54" DIA.
OPENING PER GDOT 1001-B STANDARDS
PROPOSED HEADWALL 10-D. SHALL BE
PRE-CAST 45° WINGWALL REINFORCED
CONCRETE HEADWALL WITH 54" DIA.
OPENING PER GDOT 1001-B STANDARDS.
MUST FILL IN INVERT WITH CONCRETE
APRON (TO MATCH THICKNESS OF
FOOTING)
NOTES:
1. PLEASE REFER TO SUPPLEMENTARY DETAILS FOR HEADWALLS
PROVIDED IN ADDENDUM NO. 1.
2. HEADWALL DESIGN INFORMATION HAS BEEN UPDATED
(ADDENDUM NO. 1). ALL DIMENSIONS HAVE BEEN CONFIRMED
AND CALCULATIONS HAVE BEEN PERFORMED BY A
STRUCTURAL ENGINEER, REGISTERED IN THE STATE OF
GEORGIA. ENGINEER'S SEALS WHO APPEAR ON THIS PAGE ARE
NOT SEALING THE STRUCTURAL DESIGN OF THE HEADWALLS.
REVISED AUGUST 2, 2019: UPDATED INFO AND NOTES ON HEADWALLS (ADDENDUM NO. 1)
EX
IS
TIN
G 5
4"C
MP
IN
V:3
92
.7
5
EX
IS
TIN
G 5
4"C
MP
IN
V:3
93
.6
3
0+00 0+50 0+75
390
400
410
EXISTING
GROUND
ELEVATION
0+25 1+00
EXISTING
ROADWAY
APPROX. LOCATION OF
EXISTING GAS LINE
SSMH
RIM: 402.50
INV A:-9596.50
INV B:-9596.50
237
403.68
35 MPH
238
400.53
RED LIGHT
INV:393.58
24"CMP
INV:393.32
24"CMP
243
-593.19
UTP OHP OHT OHTV
244
-590.77
UTP OHP OHT OHTV
INV:399.32
24"CMP
INV:395.51
24"CMP
H
A
R
R
I
S
O
N
R
O
A
D
8
0
'
R
/
W
4
0
2
401
3
9
5
3
9
8
3
9
9
4
0
0
4
0
1
4
0
2
4
0
3
4
0
4
4
0
5
4
0
0
4
0
0
3
9
5
396
401
4
0
2
4
0
0
NOW OR FORMERLY
FRANCIS GRENIER
PARCEL L083-0153
DB 2482, PG 152
PB 831, PG 152
NOW OR FORMERLY
TR BUNTING MCWILLIAMS #658
PARCEL L083-0152
DB 627, PG 370
PB 93, PG 256
A
B
NOW OR FORMERLY
FRANCIS GRENIER
PARCEL L083-0153
DB 2482, PG 152
PB 831, PG 152
EXISTING
INV:393.63
EXISTING
INV:392.75
N
XX
X
X
3920 ARKWRIGHT RD.(478) 743-7175
DATE
SHEET OF
SCALE
PROJ. NO.
CULVERTS REPAIR / REPLACEMENT (GROUP 3)
MACON WATER AUTHORITY
FOR
JUNE 2019
5020-023-01
SUITE 101(478) 743-1703(FAX) MACON, GEORGIA 31210
BIBB COUNTY, GEORGIA
13
2018 MACON - BIBB COUNTYWIDE STORMWATER
DWG.
No. 30797PROFESSIONAL
D
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EDIT
No. 37584PROFESSIONAL
E
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MWA-2018 SW
8
1" = 20'
8-2-19
DISCLAIMER:
1. THE DESIGN / ENGINEERING WORK SHOWN ON THIS SHEET IS EXCLUSIVELY BASED ON THE TOPOGRAPHY,
EXISTING CONDITIONS, OR DESIGNS BY OTHERS AS REFERENCED. SHOULD ANY OF THE EXISTING CONDITIONS
OR TOPOGRAPHY BE FOUND TO BE DIFFERENT OR CHANGED, THE DESIGN ENGINEER THAT PREPARED THIS
PLAN SHOULD BE CONTACTED PRIOR TO CONSTRUCTING / IMPLEMENTING THIS DESIGN, AND TO DETERMINE IF
DESIGN REVISIONS ARE REQUIRED.
2. THE ENGINEER THAT PREPARED THIS DRAWING HAS ASSUMED THAT THE CONSTRUCTION WILL BE PERFORMED
IN ACCORDANCE WITH THE ENGINEERING INTENT AND COMPLETE CONSTRUCTION SPECIFICATIONS WILL BE
PREPARED TO ACCOMPANY THE DRAWINGS. THE ENGINEER EXPECTS THAT HE WILL BE INVOLVED WITH,
PROVIDED AN OPPORTUNITY TO REVIEW, AND INSPECT PRODUCTS AND CONSTRUCTION OF THE
IMPROVEMENTS SHOWN ON THIS PLAN SHEET IN ORDER TO CONFIRM THAT THE CONSTRUCTION OF THE
IMPROVEMENTS ARE INSTALLED IN ACCORDANCE WITH DESIGN CONCEPTS. SHOULD THE DESIGN ENGINEER
NOT BE INVOLVED WITH CONSTRUCTION, HE WILL NOT BE LIABLE FOR CHANGES IN CONDITIONS OR FIELD
CONDITIONS THAT MAY AFFECT THE DESIGN.
PROJECT 11 - 5042 HARRISON ROAD
NOTES:
1. EXISTING CONDITION INFORMATION TAKEN FROM THE "TOPOGRAPHIC SURVEY" PREPARED BY WELLSTON
ASSOCIATES LAND SURVEYORS, LLC, DATED OF SURVEY: MARCH 7, 2016.
2. THE UNDERGROUND UTILITIES SHOWN ON THIS DRAWING WERE COMPILED FROM FIELD OBSERVATIONS
WITHOUT BENEFIT OF EXCAVATION. WELLSTON ASSOCIATES LAND SURVEYORS, LLC DOES NOT
GUARANTEE THAT ALL UTILITIES ARE SHOWN. VERIFICATION OF UTILITIES SHOULD BE MADE BY THE
INDIVIDUAL UTILITY COMPANY PRIOR TO ANY CONSTRUCTION.
3. CONTRACTOR SHALL BE RESPONSIBLE FOR ALL UTILITY LOCATES PRIOR TO CONSTRUCTION. DEPTH OF
ALL EXISTING UTILITIES SHALL BE CONFIRMED BY CONTRACTOR PRIOR TO CONSTRUCTION. MATERIALS
FOR ANY REQUIRED WATER OR SEWER SYSTEM RELOCATION WILL BE PROVIDED BY THE MACON WATER
AUTHORITY, BUT INSTALLATION, INCLUDING BYPASS, WILL BE INCIDENTAL TO THE CONSTRUCTION OF THE
INDIVIDUAL PROJECT. CONTRACTOR IS RESPONSIBLE FOR ALL REQUIRED UTILITY RELOCATIONS.
4. CONTRACTOR WILL BE RESPONSIBLE FOR STORM WATER MANAGEMENT AND TRAFFIC CONTROL IN THE
PROJECT AREA DURING CONSTRUCTION. ALL STORMWATER SHALL BE IN ACCORDANCE WITH THE "LOCAL
STORMWATER DESIGN MANUAL FOR MACON - BIBB COUNTY, GEORGIA", LATEST EDITION. IT IS ASSUMED
THAT ALL EXISTING PIPES ARE CURRENTLY DRAINING PROPERLY. CONTRACTOR SHALL NOTIFY ENGINEER
IF EXISTING CONDITIONS DO NOT SUPPORT THIS ASSUMPTION.
5. ALL DISTURBED AREAS SHALL BE STABILIZED WITH EROSION MATTING AND PERMANENT GRASSING. ALL
SEDIMENTATION AND EROSION BMP'S SHALL BE IN ACCORDANCE WITH THE EROSION AND SEDIMENTATION
CONTROL IN GEORGIA HANDBOOK, LATEST EDITION.
6. CONTRACTOR RESPONSIBLE FOR PROVIDING CONTINUED ACCESS (ONE LANE TO REMAIN OPEN) TO
HOMEOWNERS EFFECTED BY ANY CONSTRUCTION RELATED WORK.
7. PROPOSED HEADWALLS SHALL MATCH THE DESIGN OF THE EXISTING HEADWALLS AND SHALL BE IN
ACCORDANCE WITH GDOT STANDARDS. CONTRACTOR SHALL PROVIDE PRECAST OR POUR IN PLACE
HEADWALLS AS SHOWN ON PLANS TO MATCH EXISTING CONDITIONS. CONTRACTOR IS RESPONSIBLE FOR
DETERMINING SIZE AND DESIGN OF HEADWALLS. ANY FIELD CHANGES TO HEADWALL LOCATION, DESIGN,
ETC. REQUESTED BY THE CONTRACTOR SHALL BE PRE-APPROVED BY THE ENGINEER AND AT NO
ADDITIONAL COST TO THE OWNER.
8. CONTRACTOR SHALL SUBMIT DETAILED SHOP DRAWINGS FOR ALL PRECAST OR POUR-IN-PLACE CONCRETE
STRUCTURES.
PLAN VIEW
SCALE: 1"=20'
CONTRACTOR TO REMOVE
EXISTING 54" DIA. CMP
DOUBLE ROW OF SENSITIVE
SILT FENCE (TYPE-C)
(TYP.)
Sd1-S
CLASS 'A' ASPHALT
PAVEMENT REPLACEMENT
PROFILE VIEW
SCALE: H:1"=20', V:1"=5'
395
PROPERTY LINE
5' CONTOUR LINE
UTILITY POLE
GUY WIRE
SIGN
FENCE
STORM SEWER LINE
ASPHALT
P,T,TV
WATER LINE W
4031' CONTOUR LINE
OVERHEAD POWER, TELEPHONE
AND CATV
LEGEND
GRAPHIC SCALE IN FEET
0 40201020
PROPOSED PERMANENT
EASEMENT (TO BE CENTERED
ON EITHER SIDE OF PROPOSED
PIPE)
±22'
30'
90 SY OF 12" DIA.
RIP-RAP OUTLET
PROTECTION
OP
±64 LF OF 54" DIA. CLASS III REINFORCED
CONCRETE PIPE. CONTRACTOR TO FIELD
CONFIRM AND SET GRADE TO PROVIDE
MINIMUM SLOPE OF 1.4%.
±30'
±64 LF OF 54" DIA. CLASS III REINFORCED
CONCRETE PIPE. CONTRACTOR TO FIELD
CONFIRM AND SET GRADE TO PROVIDE
MINIMUM SLOPE OF 1.4%.
±15 CY OF COMPACTED BACKFILL
BEHIND HEADWALL TO PROMOTE
DRAINAGE AND PREVENT EROSION
AND UNDERMINING OF HEADWALL
± 7 CY OF COMPACTED BACKFILL
BEHIND HEADWALL TO PROMOTE
DRAINAGE AND PREVENT EROSION
AND UNDERMINING OF HEADWALL
NOTES:
1. PLEASE REFER TO SUPPLEMENTARY DETAILS FOR HEADWALLS
PROVIDED IN ADDENDUM NO. 1.
2. HEADWALL DESIGN INFORMATION HAS BEEN UPDATED
(ADDENDUM NO. 1). ALL DIMENSIONS HAVE BEEN CONFIRMED
AND CALCULATIONS HAVE BEEN PERFORMED BY A
STRUCTURAL ENGINEER, REGISTERED IN THE STATE OF
GEORGIA. ENGINEER'S SEALS WHO APPEAR ON THIS PAGE ARE
NOT SEALING THE STRUCTURAL DESIGN OF THE HEADWALLS.
PROPOSED HEADWALL 11-B. SHALL BE
PRE-CAST 45° WINGWALL REINFORCED
CONCRETE HEADWALL WITH 66" DIA.
OPENING PER GDOT 1001-B STANDARDS.
MUST FILL IN INVERT WITH CONCRETE
APRON (TO MATCH THICKNESS OF
FOOTING)
REVISED AUGUST 2, 2019: UPDATED INFO AND NOTES ON HEADWALLS (ADDENDUM NO. 1)
PROPOSED HEADWALL 11-A. SHALL BE
PRE-CAST STRAIGHT WALL REINFORCED
CONCRETE HEADWALL WITH 66" DIA.
OPENING PER GDOT 1001-B STANDARDS
PROPOSED HEADWALL 11-A. SHALL BE
PRE-CAST STRAIGHT WALL REINFORCED
CONCRETE HEADWALL WITH 66" DIA.
OPENING PER GDOT 1001-B STANDARDS
PROPOSED HEADWALL 11-B. SHALL BE
PRE-CAST 45° WINGWALL REINFORCED
CONCRETE HEADWALL WITH 66" DIA.
OPENING PER GDOT 1001-B STANDARDS.
MUST FILL IN INVERT WITH CONCRETE
APRON (TO MATCH THICKNESS OF
FOOTING)
EX
IS
TIN
G 48"C
MP
IN
V:450.59
EX
IS
TIN
G 48"C
MP
IN
V:450.53
0+00 0+50 0+75
450
460
EXISTING
GROUND
ELEVATION
0+25
470
EXISTING
ROADWAY
APPROX. LOCATION
OF EXISTING WATER
LINE
1+00
EXISTING UNDERGROUND
UTILITIES (TYP.)
249
460.76
SSMH
4
5
7
4
5
6
4
5
5
4
5
4
4
5
3
452
4
5
3
4
5
4
4
5
5
459
460
460
4
5
5
4
5
4
4
5
3
4
5
2
4
5
1
4
5
0
4
5
2
4
5
1
4
6
1
NOW OR FORMERLY
INNOVATIVE FIBER TECH, LLC
PARCEL K008-0241
DB 8003, PG 275
PB 92, PG 839
NOW OR FORMERLY
MIDDLE FORK, LLC
PARCEL K008-0162
DB 4207, PG 259
PB 88, PG 399
NOW OR FORMERLY
ISPW ASSOCIATES
PARCEL K008-00010
DB 7724, PG 226
N
EXISTING
INV:450.53
CA
VA
LIE
R D
RIV
E (80'R
/W
)
XX
XX
EXISTING
INV:450.59
3920 ARKWRIGHT RD.(478) 743-7175
DATE
SHEET OF
SCALE
PROJ. NO.
CULVERTS REPAIR / REPLACEMENT (GROUP 3)
MACON WATER AUTHORITY
FOR
JUNE 2019
5020-023-01
SUITE 101(478) 743-1703(FAX) MACON, GEORGIA 31210
BIBB COUNTY, GEORGIA
13
2018 MACON - BIBB COUNTYWIDE STORMWATER
DWG.
No. 30797PROFESSIONAL
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EDIT
No. 37584PROFESSIONAL
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MWA-2018 SW
9
1" = 20'
8-2-19
DISCLAIMER:
1. THE DESIGN / ENGINEERING WORK SHOWN ON THIS SHEET IS EXCLUSIVELY BASED ON THE TOPOGRAPHY,
EXISTING CONDITIONS, OR DESIGNS BY OTHERS AS REFERENCED. SHOULD ANY OF THE EXISTING CONDITIONS
OR TOPOGRAPHY BE FOUND TO BE DIFFERENT OR CHANGED, THE DESIGN ENGINEER THAT PREPARED THIS
PLAN SHOULD BE CONTACTED PRIOR TO CONSTRUCTING / IMPLEMENTING THIS DESIGN, AND TO DETERMINE IF
DESIGN REVISIONS ARE REQUIRED.
2. THE ENGINEER THAT PREPARED THIS DRAWING HAS ASSUMED THAT THE CONSTRUCTION WILL BE PERFORMED
IN ACCORDANCE WITH THE ENGINEERING INTENT AND COMPLETE CONSTRUCTION SPECIFICATIONS WILL BE
PREPARED TO ACCOMPANY THE DRAWINGS. THE ENGINEER EXPECTS THAT HE WILL BE INVOLVED WITH,
PROVIDED AN OPPORTUNITY TO REVIEW, AND INSPECT PRODUCTS AND CONSTRUCTION OF THE
IMPROVEMENTS SHOWN ON THIS PLAN SHEET IN ORDER TO CONFIRM THAT THE CONSTRUCTION OF THE
IMPROVEMENTS ARE INSTALLED IN ACCORDANCE WITH DESIGN CONCEPTS. SHOULD THE DESIGN ENGINEER
NOT BE INVOLVED WITH CONSTRUCTION, HE WILL NOT BE LIABLE FOR CHANGES IN CONDITIONS OR FIELD
CONDITIONS THAT MAY AFFECT THE DESIGN.
PROJECT 12 - 4269 CAVALIER DRIVE
NOTES:
1. EXISTING CONDITION INFORMATION TAKEN FROM THE "TOPOGRAPHIC SURVEY" PREPARED BY WELLSTON
ASSOCIATES LAND SURVEYORS, LLC, DATED OF SURVEY: MARCH 7, 2016.
2. THE UNDERGROUND UTILITIES SHOWN ON THIS DRAWING WERE COMPILED FROM FIELD OBSERVATIONS
WITHOUT BENEFIT OF EXCAVATION. WELLSTON ASSOCIATES LAND SURVEYORS, LLC DOES NOT
GUARANTEE THAT ALL UTILITIES ARE SHOWN. VERIFICATION OF UTILITIES SHOULD BE MADE BY THE
INDIVIDUAL UTILITY COMPANY PRIOR TO ANY CONSTRUCTION.
3. CONTRACTOR SHALL BE RESPONSIBLE FOR ALL UTILITY LOCATES PRIOR TO CONSTRUCTION. DEPTH OF
ALL EXISTING UTILITIES SHALL BE CONFIRMED BY CONTRACTOR PRIOR TO CONSTRUCTION. MATERIALS
FOR ANY REQUIRED WATER OR SEWER SYSTEM RELOCATION WILL BE PROVIDED BY THE MACON WATER
AUTHORITY, BUT INSTALLATION, INCLUDING BYPASS, WILL BE INCIDENTAL TO THE CONSTRUCTION OF THE
INDIVIDUAL PROJECT. CONTRACTOR IS RESPONSIBLE FOR ALL REQUIRED UTILITY RELOCATIONS.
4. CONTRACTOR WILL BE RESPONSIBLE FOR STORM WATER MANAGEMENT AND TRAFFIC CONTROL IN THE
PROJECT AREA DURING CONSTRUCTION. ALL STORMWATER SHALL BE IN ACCORDANCE WITH THE "LOCAL
STORMWATER DESIGN MANUAL FOR MACON - BIBB COUNTY, GEORGIA", LATEST EDITION. IT IS ASSUMED
THAT ALL EXISTING PIPES ARE CURRENTLY DRAINING PROPERLY. CONTRACTOR SHALL NOTIFY ENGINEER
IF EXISTING CONDITIONS DO NOT SUPPORT THIS ASSUMPTION.
5. ALL DISTURBED AREAS SHALL BE STABILIZED WITH EROSION MATTING AND PERMANENT GRASSING. ALL
SEDIMENTATION AND EROSION BMP'S SHALL BE IN ACCORDANCE WITH THE EROSION AND SEDIMENTATION
CONTROL IN GEORGIA HANDBOOK, LATEST EDITION.
6. CONTRACTOR RESPONSIBLE FOR PROVIDING CONTINUED ACCESS (ONE LANE TO REMAIN OPEN) TO
HOMEOWNERS EFFECTED BY ANY CONSTRUCTION RELATED WORK.
7. PROPOSED HEADWALLS SHALL MATCH THE DESIGN OF THE EXISTING HEADWALLS AND SHALL BE IN
ACCORDANCE WITH GDOT STANDARDS. CONTRACTOR SHALL PROVIDE PRECAST OR POUR IN PLACE
HEADWALLS AS SHOWN ON PLANS TO MATCH EXISTING CONDITIONS. CONTRACTOR IS RESPONSIBLE FOR
DETERMINING SIZE AND DESIGN OF HEADWALLS. ANY FIELD CHANGES TO HEADWALL LOCATION, DESIGN,
ETC. REQUESTED BY THE CONTRACTOR SHALL BE PRE-APPROVED BY THE ENGINEER AND AT NO
ADDITIONAL COST TO THE OWNER.
8. CONTRACTOR SHALL SUBMIT DETAILED SHOP DRAWINGS FOR ALL PRECAST OR POUR-IN-PLACE CONCRETE
STRUCTURES.
PLAN VIEW
SCALE: 1"=20'
CONTRACTOR TO REMOVE
EXISTING 48" DIA. CMP
DOUBLE ROW OF SENSITIVE
SILT FENCE (TYPE-C)
(TYP.)
Sd1-S
CLASS 'A' ASPHALT
PAVEMENT REPLACEMENT
PROFILE VIEW
SCALE: H:1"=20', V:1"=5'
LEGEND
GRAPHIC SCALE IN FEET
0 40201020
403
PROPERTY LINE
1' CONTOUR LINE
STORM SEWER LINE
OVERHEAD POWER, TELEPHONE
AND CATV
ASPHALT
P,T,TV
WATER LINE W
UNDERGROUND TELEPHONE UT
SANITARY SEWER LINE SAN
EASEMENT LINE
5' CONTOUR LINE 395
±61 LF OF 48" DIA. CLASS III REINFORCED
CONCRETE PIPE. CONTRACTOR TO FIELD
CONFIRM AND SET GRADE TO MATCH
EXISTING CONDITIONS.
10'
±23'
PROPOSED TEMPORARY
CONSTRUCTION EASEMENT
(TO BE CENTERED ON EITHER
SIDE OF PROPOSED PIPE)
10'
30'
PROPOSED TEMPORARY
CONSTRUCTION EASEMENT
(TO BE CENTERED ON EITHER
SIDE OF PROPOSED PIPE)
70 SY OF 12" DIA. RIP-RAP
OUTLET PROTECTION
OP
±61 LF OF 48" DIA. CLASS III REINFORCED
CONCRETE PIPE. CONTRACTOR TO FIELD
CONFIRM AND SET GRADE TO MATCH
EXISTING CONDITIONS.
PROPOSED HEADWALL 12-A. SHALL BE
PRE-CAST 45° WINGWALL REINFORCED
CONCRETE HEADWALL WITH 60" DIA.
OPENING PER GDOT 1001-B STANDARDS
PROPOSED HEADWALL 12-B. SHALL BE
PRE-CAST 45° WINGWALL REINFORCED
CONCRETE HEADWALL WITH 60" DIA.
OPENING PER GDOT 1001-B STANDARDS
± 7 CY OF COMPACTED BACKFILL
BEHIND HEADWALL TO PROMOTE
DRAINAGE AND PREVENT EROSION
AND UNDERMINING OF HEADWALL
± 8 CY OF COMPACTED BACKFILL
BEHIND HEADWALL TO PROMOTE
DRAINAGE AND PREVENT EROSION
AND UNDERMINING OF HEADWALL
PROPOSED HEADWALL 12-A. SHALL BE
PRE-CAST 45° WINGWALL REINFORCED
CONCRETE HEADWALL WITH 60" DIA.
OPENING PER GDOT 1001-B STANDARDS
PROPOSED HEADWALL 12-B. SHALL BE
PRE-CAST 45° WINGWALL REINFORCED
CONCRETE HEADWALL WITH 60" DIA.
OPENING PER GDOT 1001-B STANDARDS
NOTES:
1. PLEASE REFER TO SUPPLEMENTARY DETAILS FOR HEADWALLS
PROVIDED IN ADDENDUM NO. 1.
2. HEADWALL DESIGN INFORMATION HAS BEEN UPDATED
(ADDENDUM NO. 1). ALL DIMENSIONS HAVE BEEN CONFIRMED
AND CALCULATIONS HAVE BEEN PERFORMED BY A
STRUCTURAL ENGINEER, REGISTERED IN THE STATE OF
GEORGIA. ENGINEER'S SEALS WHO APPEAR ON THIS PAGE ARE
NOT SEALING THE STRUCTURAL DESIGN OF THE HEADWALLS.
REVISED AUGUST 2, 2019: UPDATED INFO AND NOTES ON HEADWALLS (ADDENDUM NO. 1)