Drawings amendment 2.pdf
PDF 2 MB Posted
- Attached to
- Pajaro PL 84-99 Site 3 Repair
- Solicitation number
- W912P723B0011
About this file
This document package includes construction drawings and specifications for repair work on a federal levee project. The project involves repairing damages to the Left Bank levee along the Pajaro River in Monterey County, California under Solicitation Number W912P723B0011. Repairs are needed at Site 3 of the levee and will include restoring the levee crest elevation, rebuilding the levee toes, repairing an existing 60-inch culvert, placing rock slope protection, and conducting isolated slope repairs. The work limits, haul routes, construction staging areas, and alignment controls are delineated on the drawings. Specifications require complying with permits, conducting biological and archaeological surveys, implementing erosion and sediment controls, and restoring sites after project completion. Bidders should verify repair locations and access routes with the Contracting Officer prior to conducting work.
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GENERAL NOTES
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
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SURVEY CONTROL
AB AGGREGATE BASE
APPROX APPROXIMATE
BEG BEGINNING
BOF BOTTOM OF FOOTING
CENTERLINE
CIP CAST-IN-PLACE
CO CONTRACTING OFFICER
CONC CONCRETE
DIA/Ø DIAMETER
DR DRIVE
(E) EXISTING
E EASTING
EA EACH
EG EXISTING GRADE
EL ELEVATION
EP EDGE OF PAVEMENT
FG FINISHED GRADE
FT FOOT/FEET
H/HORIZ HORIZONTAL
HDPE HIGH DENSITY POLYETHYLENE
HWY HIGHWAY
IN INCH/INCHES
INV INVERT
LAT LATERAL
LB LEFT BANK
LF LINEAR FEET
LT LEFT
MAX MAXIMUM
MCWRA MONTEREY COUNTY WATER RESOURCE AGENCY
MHHW MEAN HIGHER HIGH WATER
MHW MEAN HIGH WATER
MIN MINIMUM
MLLW MEAN LOWER LOW WATER
MLW MEAN LOW WATER
MSL MEAN SEA LEVEL
N NORTHING
N/A NOT APPLICABLE
NAD 83 NORTH AMERICAN DATUM OF 1983
NAVD 88 NORTH AMERICAN VERTICAL
DATUM OF 1988
NGS NATIONAL GEODETIC SURVEY
N.I.C NOT IN CONTRACT
NO NUMBER
NPDES NATIONAL POLLUTANT DISCHARGE
ELIMINATION SYSTEM
NTS NOT TO SCALE
OFF OFFSET
OG ORIGINAL GRADE
PID PERMANENT IDENTIFIER
PIP PROTECT IN PLACE
R RADIUS
RB RIGHT BANK
RC REINFORCED CONCRETE
RD ROAD
RSP ROCK SLOPE PROTECTION
SL SLOPE
CA SPC CALIFORNIA STATE PLANE COORDINATE
STA STATION
TYP TYPICAL
U.O.N. UNLESS OTHERWISE NOTED
V/VERT VERTICAL
W/ WITH
W/O WITHOUT
PROPOSED LEVEE REPAIR
EXISTING GROUND
CONSTRUCTION STAGING AREA
EXISTING CONTOUR (POST-STORM)
ABBREVIATIONS
CL
MLLW ELEVATION
EXISTING CONTOUR (PRE-STORM)5
1. HORIZONTAL DATUM IS NAD 83, CALIFORNIA STATE PLANE
COORDINATE SYSTEM, ZONE IV, U.S. FEET (GEOID 18).
2. VERTICAL DATUM IS NAVD 88.
3. ALL UNITS ARE IN U.S. FEET.
4. TOPOGRAPHIC CONTOURS INDICATE THE GENERAL CONDITIONS AT
TIME OF SURVEY. EXISTING CONTOUR SURFACE IS SOURCED FROM
SURVEYS CONDUCTED ON MAY 2023 AND NOVEMBER 2019.
5. RIGHT BANK AND LEFT BANK ARE REFERENCED LOOKING
DOWNSTREAM.
6. PERFORM ALL WORK IN A MANNER THAT COMPLIES WITH ALL
PERMITS AND IS PROTECTIVE OF THE ENVIRONMENT, INCLUDING AIR
AND WATER QUALITY, WILDLIFE, VEGETATION AND HUMAN HEALTH.
7. PRIOR TO GRANTING ACCESS AND RIGHTS TO OCCUPY PERMISSIONS,
CONTRACTOR MUST SUBMIT WORK PLANS FOR REVIEW AND
APPROVAL, AS DESCRIBED IN SPECIFICATIONS. CONTRACTOR TO
OBTAIN REQUIRED PERMITS.
8. MARK CONSTRUCTION LIMITS OF WORK IN THE FIELD AND HAVE
CONSTRUCTION LIMITS OF WORK APPROVED BY THE CONTRACTING
OFFICER PRIOR TO THE START OF WORK.
9. ONLY OPERATE EQUIPMENT ON APPROVED ACCESS ROUTES AND
WITHIN CONSTRUCTION WORK LIMITS INDICATED ON THE DRAWINGS.
CONFIRM THE ACCESS ROUTES WITH THE CONTRACTING OFFICER
PRIOR TO MOBILIZATION.
10. BECOME FAMILIAR WITH AND OBEY WORK REGULATIONS INCLUDING
SAFETY, FIRE, TRAFFIC, AND SECURITY REGULATIONS. KEEP WITHIN
THE LIMITS OF THE WORK AND AVENUES OF INGRESS AND EGRESS.
COMPLY WITH EM 385-1-1 FOR SAFETY REQUIREMENTS TO INCLUDE
PERSONAL PROTECTIVE EQUIPMENT.
11. WORK SHALL NOT BE PERFORMED ON DAYS THE NATIONAL WEATHER
SERVICE FORECASTS 0.1 INCH OR MORE OF RAIN IN 24 HOURS.
AHEAD OF THESE RAIN EVENTS AND NO LATER THAN THE DAY PRIOR,
THE CONTRACTOR SHALL IMPLEMENT A WORK STOPPAGE PLAN.
WORK STOPPAGE INCLUDES THE COMPLETION OF WORK OR
PLACEMENT OF TEMPORARY MEASURES FOR PARTIALLY COMPLETED
WORK. TEMPORARY MEASURES INCLUDE EROSION CONTROL,
SEDIMENT CONTROL, AND OTHER PROTECTIVE MEASURES.
TEMPORARY MEASURES SHALL BE STORED ONSITE AND AVAILABLE
AT ALL TIMES. WORK STOPPAGE ALSO INCLUDES THE REMOVAL OF
DIVERSIONS WHEN THE NATIONAL WEATHER SERVICE FORECASTS
HIGH WATER OR WHEN DIRECTED BY THE CONTRACTING OFFICER.
12. RAIN THAT LEADS TO THE REQUIREMENT TO REMOVE DIVERSIONS
SHALL BE CONSIDERED UNANTICIPATED CONDITIONS. DAMAGE TO
PROJECT CONSTRUCTION WORK SUSTAINED BECAUSE OF A RAIN
EVENT SHALL BE CONSIDERED UNANTICIPATED.
13. IMMEDIATELY ON DISCOVERY OF THE NEED FOR INTERPRETATION OF
THE CONTRACT DOCUMENTS, THE CONTRACTOR SHALL PREPARE
AND SUBMIT A REQUEST FOR INFORMATION (RFI) FOR CLARIFICATION.
14. REGULAR WORKING HOUR RESTRICTIONS ARE PROVIDED IN
SPECIFICATIONS, WORK OUTSIDE OF REGULAR WORKING HOURS AND
ON FEDERAL HOLIDAYS REQUIRE APPROVAL FROM THE
CONTRACTING OFFICER.
15. CONTACT UNDERGROUND SERVICE ALERT NORTH AT 811-642-2444 A
MINIMUM OF 2 WORKING DAYS PRIOR TO THE START OF EXCAVATION
TO MARK EXISTING UTILITIES. EXISTING UTILITIES THAT INTERFERE
WITH WORK ARE TO BE PROTECTED AS REQUIRED AND KEPT IN
SERVICE AT ALL TIMES.
16. IMMEDIATELY NOTIFY THE CONTRACTING OFFICER AFTER ALL SPILLS,
REGARDLESS OF QUANTITY, INCLUDING ALL PERSONNEL
EXPOSURES. THE CONTRACTOR SHALL SUBMIT A WRITTEN
NOTIFICATION NO LATER THAN 7 CALENDAR DAYS AFTER THE INITIAL
NOTIFICATION.
17. SPILL KITS SHALL BE STORED AT EACH REPAIR SITE AND
LAYDOWN/STAGING AREA AND AVAILABLE AT ALL TIMES.
18. LAYDOWN/STAGING AREAS WITHIN 100 FEET OF WATERWAYS SHALL
INCLUDE SECONDARY CONTAINMENT FOR VEHICLE AND EQUIPMENT
FUELING AND MAINTENANCE.
19. VEHICLE AND EQUIPMENT FUELING AND MAINTENANCE SHALL TAKE
PLACE AT LAYDOWN/STAGING AREAS WHICH MUST INCLUDED
CONTAINMENT MEASURES TO PROTECT AGAINST POTENTIAL
DISCHARGE OF FLUIDS TO WATERWAYS.
20. VEHICLE AND EQUIPMENT SHALL BE CHECKED BEFORE THEY ARE
USED FOR THE FIRST TIME, AND THEN DAILY FOR FUEL, OIL, AND
HYDRAULIC FLUID LEAKS OR OTHER PROBLEMS THAT COULD RESULT
IN SPILLS OF TOXIC MATERIALS.
21. VEHICLE, EQUIPMENT, MATERIAL, AND TEMPORARY CONSTRUCTION
FACILITIES AND CONTROLS SHALL BE REMOVED FROM THE REPAIR
SITE WHEN WORK IS COMPLETE.
22. MATERIAL NOT ACTIVELY IN USE SHALL BE COVERED AND
SURROUNDED BY AN APPROPRIATE SEDIMENT BARRIER.
23. IN ALL AREAS WHERE PROJECT RELATED ACTIVITIES OCCUR, THE
CONTRACTOR SHALL RETURN THE EASEMENTS, ACCESS POINTS AND
PROVIDED LAYDOWN/STAGING AREAS TO THEIR ORIGINAL
PRE-PROJECT CONDITIONS PRIOR TO VACATING THE SITE.
24. DURING THE COURSE OF THE PROJECT, THE COUNTY OF MONTEREY,
PROPERTY OWNERS, AND ITS AUTHORIZED REPRESENTATIVES SHALL
BE PROVIDED ACCESS TO THE COUNTY EASEMENTS, COUNTY
ACCESS POINTS AND COUNTY-PROVIDED LAYDOWN/STAGING AREAS
AT ALL TIMES IN ORDER TO CONDUCT THE COUNTY'S NORMAL
BUSINESS ACTIVITIES.
25. LEVEE MAINTENANCE ROADS THAT BECOME RUTTED,
CONTAMINATED, CRUSHED OR OTHER WISE DAMAGED BY PROJECT
CONSTRUCTION SHALL BE REPAIRED. REPAIR SHALL CONSIST OF
REMOVAL OF 3 INCHES OF SOIL OR AGGREGATE AND REPLACEMENT
WITH COMPACTED CLASS 2 AGGREGATE BASE (2022 CALTRANS
STANDARD). THE CONTRACTING OFFICER SHALL DETERMINE
DAMAGED MAINTENANCE ROAD REQUIRING REPAIR.
26. SURVEYS FOR THE PRESENCE OR THE ABSENCE OF CALIFORNIA
RED-LEGGED FROGS ARE REQUIRED WITHIN THE CONSTRUCTION
LIMITS OF WORK. SURVEYS SHALL BE PERFORMED AT THE REPAIR
SITE BY A QUALIFIED BIOLOGIST DAILY, PRIOR TO THE START OF
DAILY WORK. THE QUALIFIED BIOLOGIST SHALL HAVE A MINIMUM OF
10 YEARS OF EXPERIENCE WITH CALIFORNIA RED-LEGGED FROGS
AND BE APPROVED BY THE CONTRACTING OFFICER. DAILY WORK MAY
COMMENCE IN THE ABSENCE OF CALIFORNIA RED-LEGGED FROGS. IF
CALIFORNIA RED-LEGGED FROGS ARE FOUND, IMMEDIATELY NOTIFY
THE CONTRACTING OFFICER.
27. DEWATERING AND DIVERSIONS SHALL BE DESIGNED TO HAVE THE
MINIMUM NECESSARY IMPACTS TO WATERS OF THE STATE AND
INSTALLED SUCH THAT DIVERSIONS DO NOT CAUSE SEDIMENTATION,
SILTATION, OR EROSION UPSTREAM OR DOWNSTREAM OF THE
PROJECT AREA. DEWATERING AND DIVERSIONS SHALL BE
IMMEDIATELY REMOVED UPON COMPLETION OF WORK, AND IN SUCH
A WAY AS TO NOT CAUSE A SEDIMENT DISCHARGE OR EROSION.
28. SURVEYS FOR THE PRESENCE OR THE ABSENCE OF SOUTH-CENTRAL
CALIFORNIA COAST STEELHEAD ARE REQUIRED. SURVEYS SHALL BE
PERFORMED AT REPAIR SITE #3 BY A QUALIFIED BIOLOGIST DAILY,
DURING DEWATERING ACTIVITIES. THE QUALIFIED BIOLOGIST SHALL
HAVE EXPERIENCE WITH SOUTH-CENTRAL CALIFORNIA COAST
STEELHEAD AND BE APPROVED BY THE CONTRACTING OFFICER.
DAILY WORK MAY COMMENCE IN THE ABSENCE OF SOUTH-CENTRAL
CALIFORNIA COAST STEELHEAD. IF SOUTH-CENTRAL CALIFORNIA
COAST STEELHEAD ARE FOUND, IMMEDIATELY NOTIFY THE
CONTRACTING OFFICER.
29. SURVEYS FOR THE PRESENCE OR THE ABSENCE OF TIDEWATER
GOBY ARE REQUIRED. SURVEYS SHALL BE PERFORMED AT REPAIR
SITE #3 BY A QUALIFIED BIOLOGIST DAILY, DURING DEWATERING
ACTIVITIES. THE QUALIFIED BIOLOGIST SHALL HAVE EXPERIENCE
WITH TIDEWATER GOBY AND BE APPROVED BY THE CONTRACTING
OFFICER. DAILY WORK MAY COMMENCE IN THE ABSENCE OF
TIDEWATER GOBY. IF TIDEWATER GOBY ARE FOUND, IMMEDIATELY
NOTIFY THE CONTRACTING OFFICER.
LEGEND
DOWNSTREAM DIRECTION OF FLOW
COMPACTED FILL
EXISTING ROCK SLOPE PROTECTION
FLOOD-FIGHT MATERIAL
EXCAVATE/DEGRADE/REMOVE
PROPOSED LEVEE CREST
PROPOSED LEVEE TOE
CONSTRUCTION LIMITS OF WORK
LEVEE CONTROL LINE
EXISTING LEVEE CREST
EXISTING LEVEE TOE
SLOPE INDICATOR
FINISHED GRADE CONTOUR5
PROPOSED LEVEE
WATERSIDE SLOPE REPAIR
EXISTING ELECTRICAL CONDUITE
AM
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CONSTRUCTION LIMITS OF WORK
SEE G-004
TR
AFT
ON R
D
McGOW
AN RD
THURW
ACHER RD
BEACH RD
LEE RD
STA
TE H
IG
H
W A
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STA
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H W
A Y 1
PAJA
RO
MONTEREY BAY
W RIVERSIDE DR
SAN ANDREAS RD
INDUSTRIAL RDW BEACH ST
WATSONVILLE
WASTEWATER
TREATMENT
PLANT
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
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G-003
HAUL ROUTE PLANA1 SCALE: 1"=1000' 1000'1000' 0' 2000'
GRAPHIC SCALE
PLAN
NORTH
AM
EN
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L1
L2
L3
L4
L5 L6
L7
L8
CONSTRUCTION
LIMITS OF WORK
TRAFTON ROAD
(E) DRAINAGE DITCH (PIP)
ACCESS ROAD TO BE
SHARED W/ GROWERS.
SEE NOTE 5
CONTROL
LINE "C"
STAGING AREA (SEE NOTE 4)
ACCESS CONSTRUCTION SITE
THROUGH TRAFTON ROAD
INSTALL DIRECTIONAL
SIGNAGE FOR EGRESS AND
INGRESS OF STAGING AREA
-0+90.70 -0+50 0+00 0+50 1+00 1+50 2+00 2+50 3+00 3+50 4+00 4+50 5+00 5+50 6+00 6+50 7+00 7+25
(E) PUMP (PIP)
BP
0+
.7
PI
: 0
+0 0.
PI
: 2
+9 3.
PI
: 7
+0 0.
EP
: 7
+2 5.
(E) CULVERT
FLAPGATE AT
OUTLET (PIP)
(E) CULVERT CONC
HEADWALL AT INLET (PIP)
(E) CONCRETE
BLOCKS AND
ACCESS RAMP (PIP)
C3 C4C1 C2
CONSTRUCTION
ACCESS ROAD
(E) DRAINAGE
DITCH (PIP)
(E) DRAINAGE
DITCH (PIP)
(E) ELECTRICAL
CONDUIT (PIP)
E E
E E E E E E E E E
CONSTRUCTION LIMITS OF WORK
LINE #
L1
L2
L3
L4
L5
L6
L7
L8
LENGTH
198.46'
861.50'
198.46'
187.37'
458.74'
57.85'
571.92'
297.71'
DIRECTION
S70° 32' 18.60"W
N19° 27' 41.40"W
N70° 32' 18.60"E
S20° 15' 15.01"E
N74° 21' 50.16"E
S49° 42' 22.13"E
S39° 23' 13.38"W
S19° 27' 41.40"E
START NORTHING
2208332.02
2208265.90
2209078.18
2209144.30
2208968.51
2209092.15
2209054.74
2208612.72
END NORTHING
2208265.90
2209078.18
2209144.30
2208968.51
2209092.15
2209054.74
2208612.72
2208332.02
START EASTING
5742775.055
5742587.938
5742300.909
5742488.026
5742552.892
5742994.655
5743038.779
5742675.866
END EASTING
5742587.94
5742300.91
5742488.03
5742552.89
5742994.66
5743038.78
5742675.87
5742775.05
CONTROL LINE "C"
LINE #
C1
C2
C3
C4
LENGTH
90.70'
293.84'
406.16'
25.00'
DIRECTION
N20° 43' 06.55"W
N19° 11' 48.48"W
N19° 19' 57.90"W
N17° 11' 45.01"W
START NORTHING
2208339.64
2208424.48
2208701.98
2209085.24
START EASTING
5742710.05
5742677.96
5742581.34
5742446.88
END NORTHING
2208424.48
2208701.98
2209085.24
2209109.12
END EASTING
5742677.96
5742581.34
5742446.88
5742439.49
STAGING AREA (SEE NOTE 4)1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
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G-004 CONSTRUCTION STAGING, WORK LIMITS AND ALIGNMENT CONTROLA1 SCALE: 1"=50' 50'50' 0' 100'
GRAPHIC SCALE
PLAN
NORTH
PAJARO RIVER
NOTES:
1. RESTORE SITE TO PRE-CONSTRUCTION CONDITIONS.
2. PROTECT-IN-PLACE ALL EXISTING IMPROVEMENTS.
3. IRRIGATION EQUIPMENT MAY BE DISCONNECTED AND MOVED;
RESTORE TO PRE-CONSTRUCTION CONDITION AT END OF PROJECT.
4. STOCKPILE AND SPREAD EXCESS SOIL OVER STAGING AREA.
MINIMIZE EXCAVATION BELOW EXISTING GROUND SURFACE.
5. GROWERS SHALL USE THE SHARED ACCESS ROAD ONLY ON
WEDNESDAYS AND SATURDAYS.
LIMITS OF HYDROSEED
AND EROSION CONTROL
LIMITS OF ISOLATED
SLOPE REPAIRS.
AM
EN
D
M
EN
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JU
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0+
0+
1+
1+
1+
1+
1+75
1+75
2+
2+
2+
2+
3+
3+
3+
3+
4+
4+
4+
4+
5+
5+
5+
5+
-0 +9
0.
-0 +5
0+
0+
1+
1+
2+
2+
3+
3+
4+
4+
5+
5+
6+
6+
7+
7+
PLACE 12" RSP AT
CULVERT OUTLET.
SEE DETAIL
REPAIR 60"Ø CMP CULVERT.
CONNECT CULVERT TO CONC
HEADWALL. SEE DETAIL
(E) DRAINAGE DITCH
STA. 0+25
BEG. OF BREACH
STA. 6+00
END OF BREACH
SEE NOTE 5
10 10
(E) CONCRETE
BLOCKS AND
ACCESS RAMP (PIP)
RESTORE
ACCESS RAMP
LIMITS OF HYDROSEED
AND EROSION CONTROL
LIMITS OF ISOLATED
SLOPE REPAIRS.
SEE NOTE 6
APPROXIMATE LIMITS
OF LEVEE DAMAGE.
SEE NOTE 7
(E) LEVEE CREST
20 15
(E) PUMP (PIP)
E E
E E E E E E E E E E E E E E E E
-15
-10
-5
-15
-10
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-0+91-0+90 -0+60 -0+30 0+00 0+30 0+60 0+90 1+20 1+50 1+80 2+10 2+40 2+70 3+00 3+30 3+60 3+90 4+20 4+50 4+80 5+10 5+40 5+70 6+00 6+30 6+60 6+90 7+20
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(N) LEVEE CREST
(N) WATERSIDE
TOE PROFILE
(N) LANDSIDE
TOE PROFILE
BENCH
SEE NOTE 2(E) TOE
(E) TOE
BENCH
SEE NOTE 2
(E) CREST
(E) CREST
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
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REPAIR SITE #3 - PLANF1 SCALE: 1"=30' 30'30' 0' 60'
GRAPHIC SCALE
PLAN
NORTH
REPAIR SITE #3 - CONTROL LINE PROFILEA1 SCALE: 1"=30' HORIZ, 1"=10' VERT 10'10' 0' 20'
GRAPHIC SCALE VERT
30'30' 0' 60'
GRAPHIC SCALE HORIZ
LANDSIDE
PAJARO RIVER
WATERSIDE
NOTES:
1. SEE SHEET C-301 FOR LEVEE
CREST AND TOE ELEVATIONS.
2. BENCH LEVEE TOE IN
ACCORDANCE WITH EM 385-1-1
AND SPECIFICATIONS.
3. CUT (E) TIMBER PILES WITHIN
WORK LIMITS 6" TO 12" BELOW
GRADE PRIOR TO LEVEE
CONSTRUCTION. SEE FIGURE
4. REMOVE 3"Ø PVC PIPE BETWEEN
APPROX STA 2+00 AND 5+00
(APPROX 3 FT. BELOW (E) GRADE,
DEPTH VARIES. CAP ENDS W/ PVC
CAP SCHEDULE 40.
5. SALVAGE 12" DIA RSP ON
FLOODPLAIN BENCH AND PLACE
ON WATERSIDE LEVEE SLOPE
BETWEEN STA 0+23 AND STA 2+00.
REPLACE ANY MISSING RSP
WASHED INTO THE RIVER.
6. ISOLATED, SURFICIAL SLOPE
REPAIRS. LIMITED TO APPROX.
8-FEET WIDE. SEE SHEET C- 503
FOR DETAILS. ASSUME FOUR (4)
REPAIR AREAS FOR BIDDING.
7. CONTRACTOR TO VERIFY REPAIR
LOCATION WITH CONTRACTING
OFFICER PRIOR TO
CONSTRUCTION. SEE GENERAL
NOTES ON SHEET G-002 AND SEE
SHEET C-501 FOR DETAILS.
A1 C-502
G1 C-502
A1 C-501
AM
EN
D
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LY
(E) ELECTRICAL CONDUIT
ALONG LANDSIDE LEVEE
TOE (PIP)
| C-101_Amendment01 |
| G-002_Amendment01 |
| G-003_Amendment01 |
| G-004_Amendment01 |
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