CON27-0001_Attachment_2_Specs.pdf
PDF 6 MB Posted
- Solicitation number
- SFGOV-0000011936
- Issued by
- San Francisco County, San Francisco City, California
About this file
This is a specifications document for a dredging project at SF Marina issued by the City and County of San Francisco. The project involves dredging work requiring an "A" license classification. The request for quotes (RFQ) establishes a deadline for all technical questions by Thursday, July 23, 2026, at 5:00 pm, with inquiries directed to cort.eidem@sfgov.org and cc'd to sean.mcfadden@sfgov.org. Bids must be submitted no later than Thursday, July 30, 2026, at 2:30 pm, via email to sean.mcfadden@sfgov.org. The specifications document provides detailed technical requirements and parameters governing the scope of work, materials, methods, and performance standards for the dredging operations.
The project has an estimated cost of $900,000. The specifications establish the technical criteria and operational requirements that bidders must meet to be considered responsive and responsible. Prospective bidders should review the attachment specifications thoroughly to understand all requirements, including any equipment specifications, environmental compliance measures, permit conditions, and quality standards applicable to the dredging work at SF Marina.
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CITY AND COUNTY OF SAN FRANCISCO
SAN FRANCISCO MARINA WEST HARBOR
2026 MAINTENANCE DREDGING
VICINITY MAP
NOTE: BASE MAP PREPARED FROM ESRI, 2014.
CALIFORNIA
NOT TO SCALE
LOS ANGELES
SAN FRANCISCO
SAN DIEGO
PROJECT SITE
SCALE IN MILES
DRAWING INDEX
NORTH
SCALE IN FEET
200 400
WEST BASIN
ABBREVIATIONS
BOT BOTTOM
CONC CONCRETE
DIA DIAMETER
(E) EXISTING
EA EACH
EL ELEVATION
FT FEET
H HORIZONTAL
MLLW MEAN LOWER LOW WATER
NAD83 NORTH AMERICAN DATUM OF 1983
RPD RECREATION AND PARKS DEPARTMENT
TYP. TYPICAL
V VERTICAL
W/ WITH
APPROXIMATE WORK SITE
DESCRIPTIONAPP'DDATE BY
REVISIONS
REV DESIGNED BY:
APPROVED BY:
CHECKED BY:
DRAWN BY:
DATE:
SCALE:
SHEET NO. OF
Ju l 0
7, 6:
pm a w ill ia m s
K:
\P ro je ct s\
-C ity a nd
C ou nt y of S
F\ W es t B as in
D re dg in g\
Co ns tru ct io n
Pl an s\
-P
L- G
Se rie s (
D re dg in g)
.d w g T-
SAN FRANCISCO MARINA WEST HARBOR
2026 MAINTENANCE DREDGING
A. WILLIAMS
J. ROYER
M. COLLINS
T. WANG
AS NOTED
JUNE 2026
CALL USA NORTH
(UNDERGROUND
SERVICE ALERT) AT LEAST
48 HOURS
IN ADVANCE OF WORK
1-800-642-2444
O N
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PROJECT SITE
T-1
TITLE SHEET 1 5
SHT NO. DWG NO. SHEET TITLE
1 T-1 TITLE SHEET
2 C-1 DREDGING PLAN
3 C-2 DESIGN SECTIONS
4 C-3 STAFF GAUGE
5 C-4 DISPOSAL LOCATIONS
NOTES:
1. BATHYMETRIC SURVEY DATA COLLECTED BY
WOOLPERT INC. ON MAY 27, 2026. BATHYMETRY
AT TIME OF DREDGING MAY DIFFER.
2. HORIZONTAL DATUM: CALIFORNIA STATE PLANE
ZONE III, NAD83 US FEET.
3. HORIZONTAL CONTROL: WOOLPERT REFERENCE
STATION; WESTAR 37°46'27.46320"N
122°22'56.73175"W
4. VERTICAL DATUM: MEAN LOWER LOW WATER
(MLLW), US FEET.
5. VERTICAL CONTROL: EO 2016 ELEVATION MLLW:
11.742 FT.
6. THE LOCATION FOR UTILITIES SHOWN ON THESE
PLANS IS APPROXIMATE ONLY. IT SHALL BE THE
RESPONSIBILITY OF THE CONTRACTOR TO VERIFY
LOCATION AND DEPTH. THIS VERIFICATION SHALL
BE COORDINATED BY THE CONTRACTOR WITH THE
APPROPRIATE UTILITY COMPANY. CALL USA NORTH
811 AT LEAST 48 HOURS BEFORE DIGGING. PHONE
1-800-642-2444.
7. CONTRACTOR SHALL COMPLY WITH THE USACE
PERMIT CONDITIONS FOR PROVIDING DATA
QUALITY MANAGEMENT PER THE SPECIFICATIONS.
8. DREDGED MATERIAL FROM DREDGE AREAS A, B, C
AND D SHALL BE DISPOSED OF AT THE U.S. ARMY
CORPS OF ENGINEERS' DISPOSAL SITE NO. 8 (SAN
FRANCISCO CHANNEL BAR DREDGED MATERIAL
DISPOSAL SITE), OR SAN RAFAEL ROCK QUARRY,
OR MONTEZUMA WETLANDS RESTORATION
PROJECT. DREDGED MATERIAL SHALL NOT BE
DISPOSED OF AT THE SAN RAFAEL ROCK QUARRY
UNTIL 20,000 CY OF DREDGED MATERIAL
(QUANTITY TO BE CONFIRMED WITH AGENCIES
DURING EPISODE APPROVAL) HAS BEEN DISPOSED
OF AT SF-08 AND/OR THE MONTEZUMA
WETLANDS RESTORATION PROJECT.
9. DREDGED MATERIAL FROM DREDGE AREA E SHALL
BE DISPOSED OF AT THE U.S. ARMY CORPS OF
ENGINEERS DISPOSAL SITE NO. 11 (ALCATRAZ
DISPOSAL SITE).
10. CONTRACTOR TO PROVIDE MINIMUM OF
48-HOUR NOTICE TO HARBORMASTER PRIOR TO
COMMENCING CONSTRUCTION WORK. DREDGING
SHALL NOT START UNTIL THE HARBORMASTER
APPROVES THE START DATE.
11. BATHYMETRIC POSITION AND MOTION DATA
WERE COLLECTED USING AN APPLANIX POSMV
WAVEMASTER USING RTK CORRECTIONS.
12. BATHYMETRIC SURVEY DATA WERE COLLECTED
USING A R2SONIC 2024 MULTIBEAM SONAR
OPERATING AT 200KHZ.
13. DREDGING MUST BE COMPLETED BY NOVEMBER
30, 2026 OR A PERMIT EXTENSION MUST BE
GRANTED BY REGULATORY AGENCIES.
14. CONTRACTOR IS RESPONSIBLE FOR CLEANING
DREDGED MATERIAL FROM ANY SURFACES, DOCKS,
OR PROPERTY AS SOON AS POSSIBLE OR BY THE
END OF EACH WORK DAY.
15. CONTRACTOR TO FURNISH AND INSTALL TWO
STAFF GAUGES AS SPECIFIED IN THESE DRAWINGS
AND THE SPECIFICATIONS. STAFF GAUGES SHALL
BE LOCATED WITHIN 5 FEET OF THE
NORTHERNMOST END OF THE SHEET PILE WALL
(NEAR THE CHANNEL), ONE ON EACH SIDE, TO BE
VISIBLE ENTERING AND EXITING THE MARINA. THE
BOTTOM OF THE STAFF GAUGE SHALL BE
SURVEYED IN TO ALIGN WITH 0.0 FEET MLLW.
GAUGES SHALL SPAN FROM MLLW TO MHHW.
THE CONTRACTOR IS REQUIRED TO FIELD VERIFY
THE LOCATION OF THE SHEET PILE WALL.
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N:2,122,250
E:
6, 1, A C-3
N:2,122,500
E:
6, 0, WEST HARBOR
BC-3
ROCK REVETMENT, APPROXIMATE
I-DOCK
DREDGE AREA B (-11' MLLW)
DREDGE AREA C (-11' MLLW)
DREDGE AREA D (-6' MLLW)
DREDGE AREA A (-12' MLLW)
DREDGE AREA E (-12' MLLW)
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NOTES:
1. SOURCE: SURVEY SURVEY DATA COLLECTED BY WOOLPERT ON
MAY 27, 2026. AERIAL IMAGERY FROM BING MAPS, 2025. AERIAL
DEPICTS APPROXIMATE LOCATION OF FEATURES. CONTRACTOR
IS RESPONSIBLE FOR ESTABLISHING AND MAINTAINING
HORIZONTAL POSITIONING CONTROL.
2. HORIZONTAL DATUM: CALIFORNIA STATE PLANE, ZONE III,
NAD83, U.S. FEET
3. HORIZONTAL CONTROL: WOOLPERT REFERENCE STATION;
WESTAR 37°46'27.46320"N 122°22'56.73175"W
4. VERTICAL DATUM: MEAN LOWER LOW WATER (MLLW). U.S. FEET.
5. VERTICAL CONTROL: EO 2016 ELEVATION MLLW: 11.742 FT.
6. LOCATION AND EXTENTS OF EXISTING OVER WATER STRUCTURES
AND ROCK REVETMENT SHALL BE CONSIDERED APPROXIMATE
AND FOR GENERAL REFERENCE ONLY. CONTRACTOR SHALL TAKE
EXTREME CARE TO AVOID DAMAGE TO FLOATING STRUCTURES,
ROCK REVETMENTS, PILINGS, AND OTHER EXISTING SITE
FEATURES WHILE DREDGING IN ADJACENT AREAS.
7. CONTRACTOR SHALL DREDGE WITHIN REQUIRED LIMITS, AND
ONLY THOSE AREAS SHALLOWER THAN REQUIRED DREDGE
ELEVATION. DREDGING DOES NOT NEED TO BE COMPLETED IN
AREAS WHERE EXISTING BATHYMETRY ELEVATIONS ARE AT
REQUIRED DREDGE ELEVATION OR DEEPER.
8. DREDGING MUST REMOVE ALL SEDIMENT ABOVE THE REQUIRED
DREDGE ELEVATION WITHIN THE DREDGE PLAN FOOTPRINT AS
SHOWN ON THIS SHEET. ACTUAL SITE CONDITIONS AT TIME OF
DREDGING MAY VARY.
9. LOCATIONS OF BUOYS SHOWN ARE APPROXIMATE.
CONTRACTOR TO FIELD VERIFY COORDINATES OF BUOYS PRIOR
TO REMOVING FOR DREDGING WORK, AND COORDINATE WITH
HARBORMASTER TO DETERMINE REPLACEMENT LOCATION OF
BUOYS AFTER DREDGING IS COMPLETE.
10. SEDIMENT MUST BE REMOVED FROM UNDER THE I-DOCK
WITHIN DREDGE AREA D TO PREVENT FURTHER DAMAGE DURING
LOW TIDE. NO HUMPS SHALL REMAIN ON THE FINAL DREDGED
SURFACE GREATER THAN 6-INCHES.
11. DREDGED MATERIAL FROM DREDGE AREAS A, B, C AND D SHALL
BE DISPOSED OF AT THE U.S. ARMY CORPS OF ENGINEERS'
DISPOSAL SITE NO. 8 (SAN FRANCISCO CHANNEL BAR DREDGED
MATERIAL DISPOSAL SITE), OR SAN RAFAEL ROCK QUARRY, OR
MONTEZUMA WETLANDS RESTORATION PROJECT. DREDGED
MATERIAL SHALL NOT BE DISPOSED OF AT THE SAN RAFAEL
ROCK QUARRY UNTIL 20,000 CY OF DREDGED MATERIAL
(QUANTITY TO BE CONFIRMED WITH AGENCIES DURING EPISODE
APPROVAL) HAS BEEN DISPOSED OF AT SF-08 AND/OR THE
MONTEZUMA WETLANDS RESTORATION PROJECT.
12. DREDGED MATERIAL FROM DREDGE AREA E SHALL BE DISPOSED
OF AT THE U.S. ARMY CORPS OF ENGINEERS DISPOSAL SITE NO.
11 (ALCATRAZ DISPOSAL SITE).
13. SEDIMENT IN DREDGE AREAS A, B, C AND D IS PREDOMINANTLY
SAND. SEDIMENT IN DREDGE AREA E IS PREDOMINANTLY SILT
AND CLAY. SEE SPECIFICATION APPENDIX FOR GRAIN SIZE
INFORMATION.
REVISIONS
SCALE IN FEET
50 100 O N
E
IN
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, I F
N O
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SHEET NO. OF
Ju l 0
7, 6:
pm a w ill ia ro je ct s\
-C ity a nd
C ou nt y of S
F\ W es t B as in
D re dg in g\
Co ns tru ct io n
Pl an s\
-P
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Se rie s (
D re dg in g)
.d w g C-
NORTH
DESCRIPTIONAPP'DDATE BY
REVISIONS
REV DESIGNED BY:
APPROVED BY:
CHECKED BY:
DRAWN BY:
DATE:
SCALE:
SHEET NO. OF
Ju l 0
7, 6:
pm a w ill ia ro je ct s\
-C ity a nd
C ou nt y of S
F\ W es t B as in
D re dg in g\
Co ns tru ct io n
Pl an s\
-P
L- C
Se rie s (
D re dg in g)
.d w g C-
SAN FRANCISCO MARINA WEST HARBOR
2026 MAINTENANCE DREDGING
A. WILLIAMS
J. ROYER
M. COLLINS
T. WANG
AS NOTED
JUNE 2026
CALL USA NORTH
(UNDERGROUND
SERVICE ALERT) AT LEAST
48 HOURS
IN ADVANCE OF WORK
1-800-642-2444
O N
E
IN
CH
PL
AN
IN
TE
N
D
ED
T O
B E
VI
EW
ED
IN
C O
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JA
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IS
"B
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C-1
DREDGING PLAN 2 5
SHEETPILE WALL
(SEE NOTE 14)
C-3
LEGEND:
APPROXIMATE 2H:1V
SLOPE DAYLIGHT
LIMIT OF DREDGING
RED BUOY
GREEN BUOY
HARBOR MAINTENANCE
DREDGING BOUNDARY
STAFF GAUGE
14. PROCURE AND INSTALL STAFF GAUGES, ONE ON EACH
SIDE OF SHEETPILE WALL (VISIBLE ENTERING AND
EXITING THE MARINA) AND WITHIN 5 FT OF THE
NORTHERNMOST EDGE OF THE SHEETPILE WALL
(CHANNEL SIDE); SEE SPECIFICATION SECTION 06.
SG
SG SG
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HORIZ. SCALE:
VERT. SCALE:
1" = 20'
DREDGE AREA A AND CB
C-1 1" = 10'
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HORIZONTAL DISTANCE IN FEET
2X VERTICAL EXAGGERATION
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SIDE SLOPE
SEE NOTE 1
DREDGE
AREA C
DREDGE AREA CSIDE SLOPE
SEE NOTE 1
HORIZ. SCALE:
VERT. SCALE:
1" = 20'
DREDGE AREA B AND CA
C-1 1" = 10'
DREDGE AREA B
DREDGE
AREA A
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C C'
HORIZ. SCALE:
VERT. SCALE:
1" = 20'
DREDGE AREA D AND EC
C-1 1" = 10'
SIDE SLOPE
SEE NOTE 1
DREDGE
AREA D
PAY LIMIT 2H:1V
EXISTING
SURFACE
EXISTING
SURFACE
PAY LIMIT
2H:1V
LIMIT OF PAY OVERDREDGE EL= -7' MLLW
REQUIRED DREDGE EL= -6' MLLW
LIMIT OF NONPAY OVERDREDGE EL= -8' MLLW
EXISTING
SURFACE
LIMIT OF PAY OVERDREDGE EL= -12' MLLW
REQUIRED DREDGE EL= -11' MLLW
LIMIT OF NONPAY OVERDREDGE EL= -13' MLLW
PAY LIMIT 2H:1V
LIMIT OF PAY OVERDREDGE
EL= -13' MLLW
REQUIRED DREDGE EL= -12' MLLW
LIMIT OF NONPAY OVERDREDGE
EL= -14' MLLW
LIMIT OF PAY OVERDREDGE
EL= -13' MLLW
REQUIRED DREDGE EL= -12' MLLW
LIMIT OF NONPAY OVERDREDGE
EL= -14' MLLW
DREDGE
AREA E SIDE SLOPE
SEE NOTE 1
SIDE SLOPE
SEE NOTE 1
LIMIT OF PAY OVERDREDGE EL= -12' MLLW
REQUIRED DREDGE EL= -11' MLLW
LIMIT OF NONPAY OVERDREDGE EL= -13' MLLW
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LEGEND:
EXISTING BATHYMETRY
REQUIRED DREDGE DESIGN
OVERDREDGE ALLOWANCE
DREDGING AREA
SIDE SLOPE AREA
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NOTES:
1. CONTRACTOR SHALL NOT DIRECTLY DREDGE IN THE SIDE
SLOPE AREA. DREDGE CUTS AT DREDGE AREA BOUNDARIES
SHALL BE VERTICAL TO THE REQUIRED DREDGE ELEVATION.
IT IS ESTIMATED THAT VERTICAL CUTS WILL RESULT IN
SLOUGH MATERIAL MOVING INTO THE REQUIRED DREDGE
AREA THAT WILL REQUIRE REMOVAL TO THE REQUIRED
DREDGE ELEVATION. MATERIAL THAT SLOUGHS FROM THE
SIDE SLOPE AREA WILL BE PAID UP TO A MAXIMUM LIMIT OF
2H:1V, AND THE SIDE SLOPE VOLUME ASSOCIATED WITH
THE MAXIMUM PAY LIMIT IS INCLUDED IN THE DREDGING
BID ITEM QUANTITIES. CONTRACTOR MUST REMOVE ALL
SLOUGH MATERIAL FROM THE REQUIRED DREDGE AREA IN
ORDER FOR WORK TO BE ACCEPTED BY THE
HARBORMASTER.
2. DREDGING OF SEDIMENT OUTSIDE THE DREDGING LIMITS
AND/OR BELOW THE NON-PAY OVERDREDGE ELEVATION IS
DEFINED AS EXCESSIVE DREDGING AND IS PROHIBITED.
CONTRACTOR WILL NOT BE PAID FOR EXCESSIVE DREDGING
AND WILL BE RESPONSIBLE FOR ANY REGULATORY AGENCY
FEES AND/OR FINES INCURRED AS A RESULT OF EXCESSIVE
DREDGING. ADDITIONALLY, IF EXCESSIVE DREDGING
RESULTS IN DAMAGE OR UNDERMINING TO EXISTING
STRUCTURES, THE CONTRACTOR SHALL RECTIFY TO THE
HARBORMASTERS SATISFACTION PRIOR TO CLOSE OF THE
CONTRACT.
3. DIMENSIONS OF DOCKS VARY. CONTRACTOR MUST INSPECT
ALL MARINA FACILITIES PRIOR TO MOBILIZATION TO
DETERMINE EQUIPMENT ACCESS RESTRICTIONS.
4. THE REQUIRED DREDGE ELEVATION MUST BE ACHIEVED IN
ALL ENTRANCE AREAS, FAIRWAYS, BERTHS, AND UNDER
FLOATING DOCKS OF A DREDGE AREA FOR IT TO BE
ACCEPTED AS COMPLETE. THE HARBORMASTER WILL
COMPARE THE PRE- AND POST-DREDGE SURVEYS TO
ENSURE THAT DREDGED SEDIMENT FROM THESE AREAS IS
REMOVED FROM THE SITE.
DESCRIPTIONAPP'DDATE BY
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SAN FRANCISCO MARINA WEST HARBOR
2026 MAINTENANCE DREDGING
A. WILLIAMS
J. ROYER
M. COLLINS
T. WANG
AS NOTED
JUNE 2026
CALL USA NORTH
(UNDERGROUND
SERVICE ALERT) AT LEAST
48 HOURS
IN ADVANCE OF WORK
1-800-642-2444
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C-2
DESIGN SECTIONS 3 5
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BOT OF CONC CAP
ELEV ±8.5'
(CONTR TO CONFIRM)
ELEV 0.0' MLLW
ELEV 3.12' MSL
ELEV 5.84' MHHW
5'-0" MAX
4" TOP & BOT
1'-8", TYP
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1. ATTACH STAFF GAUGE TO BACKER BOARD PER
MANUFACTURER RECOMMENDATIONS.
2. PROVIDE SUFFICIENT TREATED WOOD BACKER BOARD
LENGTH SO THE GAUGES ARE COMPLETELY SUPPORTED
FROM TOP TO BOTTOM AND SIDE TO SIDE.
3. POSITION GAUGES SO THEY ARE VISIBLE FOR INCOMING
AND OUTGOING BOATERS PASSING THE SHEET PILE WALL.
DESCRIPTIONAPP'DDATE BY
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REV DESIGNED BY:
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SCALE:
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SAN FRANCISCO MARINA WEST HARBOR
2026 MAINTENANCE DREDGING
A. WILLIAMS
J. ROYER
M. COLLINS
T. WANG
AS NOTED
JUNE 2026
CALL USA NORTH
(UNDERGROUND
SERVICE ALERT) AT LEAST
48 HOURS
IN ADVANCE OF WORK
1-800-642-2444
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C-3
STAFF GAUGE 4 5
TREATED WOOD
BACKER BOARD
SCALE:
STAFF GAUGE ELEVATION1
C-1 1/2" = 1'-0"
STAFF GAUGE EA SIDE OF WALL
SEE NOTE 1 BACKER BOARD
SCALE:
STAFF GAUGE SECTIONA
- 1/2" = 1'-0"
BACKER BOARD
STAFF GAUGE
BACKER BOARD
WELDED STUD, TYP
STEEL SHEET
PILE WALL
1/2" DIA WELDED STUD
EPOXY COATED W/
COUNTERSUNK NUT AND
WASHER - SEE NOTE 1
STEEL SHEET
PILE WALL
EA SIDE
CONC CAP
NOTES:
1. COAT ALL CUT HOLES AND EDGES WITH
COPPER NAPHTHENATE.
A
STAFF GAUGE
EA SIDE
STAFF GAUGE
STAFF GAUGE
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Map data © OpenStreetMap contributors, Microsoft, Esri Community Maps contributors, Map layer by Esri Powered by Esri
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NOTES:
1. DREDGED MATERIAL FROM DREDGE AREAS A, B, C AND D SHALL
BE DISPOSED OF AT THE U.S. ARMY CORPS OF ENGINEERS'
DISPOSAL SITE NO. 8 (SAN FRANCISCO CHANNEL BAR DREDGED
MATERIAL DISPOSAL SITE), OR SAN RAFAEL ROCK QUARRY, OR
MONTEZUMA WETLANDS RESTORATION PROJECT. DREDGED
MATERIAL SHALL NOT BE DISPOSED OF AT THE SAN RAFAEL
ROCK QUARRY UNTIL 20,000 CY OF DREDGED MATERIAL
(QUANTITY TO BE CONFIRMED WITH AGENCIES DURING EPISODE
APPROVAL) HAS BEEN DISPOSED OF AT SF-08 AND/OR THE
MONTEZUMA WETLANDS RESTORATION PROJECT.
2. DREDGED MATERIAL FROM DREDGE AREA E SHALL BE DISPOSED
OF AT THE U.S. ARMY CORPS OF ENGINEERS DISPOSAL SITE NO.
11 (ALCATRAZ DISPOSAL SITE).
DESCRIPTIONAPP'DDATE BY
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SAN FRANCISCO MARINA WEST HARBOR
2026 MAINTENANCE DREDGING
A. WILLIAMS
J. ROYER
M. COLLINS
T. WANG
AS NOTED
JUNE 2026
CALL USA NORTH
(UNDERGROUND
SERVICE ALERT) AT LEAST
48 HOURS
IN ADVANCE OF WORK
1-800-642-2444
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PACIFIC
OCEAN
LEGEND:
PERMITTED AREA OF SF-8
SCALE IN MILES
2 4
PROJECT SITE
ALCATRAZ (SF-11)
DISPOSAL SITE
SAN RAFAEL QUARRY
DISPOSAL SITE
MONTEZUMA WETLANDS
RESTORATION PROJECT
DISPOSAL SITE
SAN FRANCISCO
CHANNEL BAR (SF-08)
DISPOSAL SITE
SAN
FRANCISO
BAY
C-4
DISPOSAL LOCATIONS 5 5
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San Francisco Marine West Harbor 2026 Maintenance Dredging Section 01 – Summary of Work
SECTION 01
SUMMARY OF WORK
1.GENERAL
1.1. WORK COVERED BY CONTRACT DOCUMENTS
A. The work under this Contract is to provide all labor and to furnish and/or install all materials and equipment, as may be required, to complete the work as described in these Contract Documents.
B. The San Francisco Recreation and Parks Department (RPD, Owner) requires maintenance dredging of the San Francisco Marina West Harbor, furnishing of Private Aids to Navigation (PATONs) and the furnishing and installing of two staff gauges as part of the San Francisco Marina West Harbor Maintenance Dredging Project located in San Francisco, California.
C. RPD will be represented by the San Francisco Marina Harbormaster (Harbormaster) during this project. The Harbormaster may designate an additional RPD Representative. Within these specifications, the term “Harbormaster” shall mean the Harbormaster or the RPD Representative.
D. The accompanying Drawings and these Specifications show and describe the location and type of work to be performed under this project. Work for this project includes:
1. Development of project submittals summarized in Part 1.03 and detailed in these Specifications. In the event of a discrepancy between this list and the permit requirements, the permit requirements shall govern.
2. Equipment mobilization and demobilization.
3. Perform maintenance dredging in the Entrance Channel in Dredge Areas A and B to provide navigable depths, and near the I-dock in Area D to remove sediment and reduce the risk of dock grounding. Two optional dredge areas have been included, Dredge Area C near the jetty and Dredge Area E in the fairway of the marina.
4. Furnish PATONs.
5. Furnish two staff gauges and install on the breakwater wall to be seen when entering and exiting the San Francisco Marina West Harbor.
E. The Contractor is required to meet minimum dredging elevations as described in the Contract Documents. However, the Harbormaster may accept work as complete if, in the opinion of the Harbormaster, the dredging work has sufficiently achieved the project objectives. Contract Documents for this project include all documents contained in Sections I through VI, as listed in the CON27-0001 Solicitation Notice.
F. The award of Work is subject to permitting, funding, operations, and other priority decisions made at the sole discretion of RPD and the Harbormaster.
G. Unless provided otherwise in the Contract Documents, all risk of loss to the Work covered by the Contract Documents shall rest with the Contractor until final completion and acceptance.
H. The Contractor is expected to visit the Project Site prior to commencement of the dredging activity, to document existing Site conditions, including existing damage, if any, at the Project Site and adjacent properties. The Contractor’s failure to do so will be deemed a waiver of any abjection to the Harbormaster’s determination of damage to the Project Site and adjacent properties as a result of the Contractor’s Work.
1.2. DEFINITIONS
A. Dredge Area: Horizontal extents of the area or areas in which the Contractor is responsible for removing all material to the Required Dredge Elevation. The Dredge Area will be defined as Dredge Area A, Dredge Area B, Dredge Area C, Dredge Area D, and Dredge Area E.
B. Excessive Dredging: Dredging of sediment outside of the dredging limits (with the exception of Slough Material) and/or below the Maximum Overdredge Elevation. The Contractor shall not perform Excessive Dredging. The Contractor will not be paid for Excessive Dredging and will be responsible for any regulatory agency fees and/or fines incurred as a result of Excessive Dredging.
C. Furnish: Supply and deliver to the site.
D. Incidental Debris: Debris excavated as part of the dredging process, including but not limited to any solid waste materials larger than 6-inches, other than sediment, such as logs, wire, cable, steel, anchors, lumber, trash, concrete and rock. No additional compensation shall be allowed for the removal and disposal or recycling of Incidental Debris encountered during dredging operations. All Incidental Debris shall be disposed of at an RPD-approved upland landfill facility and in accordance with applicable local, state, and/or federal regulations.
E. Independent Surveyor: Third party surveyor not directly employed by the Contractor that meets qualifications detailed in Section 04 Dredging Survey and Volume Calculations.
F. Limit of Dredging: Horizontal and vertical extents of dredging. Dredging shall be completed to the lines and elevations indicated in the Contract Documents. No dredging shall occur outside the limit of dredging for each Dredge Area as indicated in the Drawings.
G. Maximum Overdredge Elevation: An elevation two (2) feet below the Required Dredge Elevation.
H. Non-Pay Overdredge Elevation: An elevation below the Pay Overdredge Elevation that will be permitted. Dredging beyond the Pay Overdredge Elevation but above the Non-Pay Overdredge Elevation is allowable but is considered non-payable dredging and will not be paid for. For this Contract, the Non-Pay Overdredge Elevation is the maximum overdredge elevation that is allowed. Dredging below the Non-Pay Overdredge Elevation is expressly prohibited by the project permits and will not be allowed.
I. Pay Overdredge Elevation: An elevation below the Required Dredge Elevation that will be paid to account for equipment tolerance. For this project, the Pay Overdredge Elevation is one (1) foot deeper than the Required Dredge Elevation. The Pay Overdredge Volume is included in the Bid Item volume.
J. Pay Volume: The quantity of dredged sediment calculated on an in-situ basis within the Dredge Area and above the Pay Overdredge Elevation using pre- and post-dredge surveys.
Note that the pre- and post-dredge surveys will be conducted with multibeam surveying methods by a licensed hydrographic surveyor procured by the Contractor. Pay volume includes material that sloughs from the side slope area to a maximum limit of 2 horizontal to 1 vertical (2H:1V). Note that Contractor shall not directly dredge in the side slope area;
dredge cuts at dredge area boundaries shall be vertical to the required dredge elevation.
K. Project Site: The designated Dredge Area, as well as the marina facilities, open water, and upland facilities and structures in the immediate vicinity of the Dredge Area.
L. Required Dredge Elevation: The elevation within the Dredge Area above which the Contractor is required to remove all sediment.
M. Side Slope: The area between the outer edge of the dredge cut at the Required Dredge Elevation (toe of cut) and the intersect point at original ground level (top of cut). The payable Side Slopes are as shown in the Drawings. Side Slopes in this project are given for measurement and payment purposes only and are not necessarily the angle of repose of the sediment. The Side Slope area shall not be directly dredged.
N. Slough Material: Sediment from the Side Slope that sloughs into the dredge area as a result of making a vertical cut to grade. The Contractor shall remove such sediment until the Required Dredge Elevation is met. The estimated volume of Slough Material was calculated assuming a 2H:1V slope from the toe of the Required Dredge Elevation cut and is included in the total dredge quantity presented in the bid form. The Contractor will not be paid for sloughing beyond the indicated design Side Slope. Slough Material above the design Side Slope is included as part of the Pay Volume.
1.3. SUBMITTALS
A. Health and Safety Plan: The Contractor is responsible for health and safety at the Project Site and shall prepare and submit a site-specific Health and Safety Plan (HASP) detailing the Contractor’s means and methods to provide for the health and safety of the Contractor’s employees, RPD’s representatives, and the public. The intent of the HASP is to reduce the exposure of workers and the public to hazards that could be encountered or present during project activities (as required in relevant regulations and statutes, including, but not limited to, those of the Occupational Safety and Health Administration [OSHA] and the U.S. Coast Guard [USCG]). The Harbormaster will review the Contractor’s HASP, but the Harbormaster’s review does not alleviate the Contractor’s responsibility to comply with all relevant health and safety laws and regulations, nor indicate the Harbormaster’s approval of the HASP. The HASP shall be kept at the Project Site at all times during the Work.
B. Public Safety Plan: The Project Site is adjacent to a public access trail. The Contractor shall submit a Public Safety Plan no more than seven (7) calendar days after Notice to Proceed (NTP), separate from the HASP. After it is submitted to the Harbormaster, the Public Safety Plan shall be maintained at the Project Site at all times during the Work. At a minimum, the Public Safety Plan shall contain detailed measures and proposed locations for safety and protection features such as signs, barricades, flaggers, or similar, to protect the public from potential safety hazards associated with dredging equipment and operations.
C. Environmental Protection and Monitoring Plan: The Contractor shall prepare and submit an Environmental Protection and Monitoring Plan no more than seven (7) calendar days after the NTP. After it is accepted by the Harbormaster, the Environmental Protection and Monitoring Plan shall be maintained at the Project Site at all times during the Work. At a minimum, it shall contain the following:
1. A Water Quality Control section that describes what type of best management practices (BMPs) and operations will be used to comply with the Water Quality Certification and applicable State and Regional Water Quality standards, and what contingency actions will be taken to meet water quality criteria should non-compliance occur during dredging and in-water transport.
2. Methods that will be used to monitor the scows for uncontrolled leakage during loading and transport of dredged sediment. If leakage is evidenced, however minor, the operations shall be terminated and not restarted until repairs, satisfactory to RPD, are made.
3. Methods for preventing polluted runoff from dredge plant and other equipment from entering local water bodies.
4. A Spill Prevention Control and Countermeasures (SPCC) section that includes but is not limited to the following:
a. Identification of construction-planning elements and potential spill sources at the Project Site.
b. The name of the individual who will report any spills or hazardous substance releases and who will follow up with complete documentation. This individual shall immediately notify the Harbormaster in addition to the legally required federal, state, and local reporting channels (including but not limited to the National Response Center at 1-800-424-8802) if a reportable quantity spill occurs. The
SPCC section shall contain a list of the required reporting channels and current telephone numbers.
c. An outline of response actions in the event of a spill or release, or observation of sheens from dredging activities, and identification of notification and reporting procedures.
d. An outline of measures that will be taken by the Contractor to prevent the release or spread of hazardous materials (either found on-site or encountered during construction, including any that are not identified in Contract Documents) or any hazardous materials that the Contractor stores, uses, or generates on the construction site during construction activities. These items include, but are not limited to, gasoline, oils, and chemicals.
e. An outline of measures that will be taken by the Contractor to contain and cleanup observed sheens that are caused by dredging activities
f. A list of materials and equipment to be immediately available at the job site, tailored to cleanup work of the potential hazard(s) identified.
g. A requirement that the Contractor maintain at the job site the applicable equipment and material designated in the SPCC section. Hazardous materials are defined by the State of California in California Code of Regulations Title 22, Division 4.5.
D. Draft Public Notice: The Contractor shall prepare and submit to the Harbormaster, no more than seven (7) working days after NTP, a draft public notice in Microsoft Word format. At a minimum, the notice shall identify the Contractor’s primary project contact, including radio and cell phone contact information, and vessel clearance request procedures. The draft public notice shall be subject to review and approval by the Harbormaster. Following approval, the Harbormaster will distribute the notice to marina tenants and other stakeholders.
E. Dredging and Disposal Submittals: The Contractor shall submit all required dredging and disposal submittals, as described in Section 03 Dredging and Disposal. They include:
1. Dredging Operations Plan
2. Solid Debris and Management Plan
3. Notice of Commencement and Completion of Work
4. Disposal Site Verification Log
5. Upland Disposal Site Verification
6. Vessel Traffic Control Log
7. USACE Dredging Quality Management (DQM) Program
PHASE No. DESCRIPTION SECTION NUMBER
PRE-
CONSTRUCTION
SUBMITTALS
1 Health and Safety Plan 01 1.03 A
2 Public Safety Plan 01 1.03 B
3 Environmental Protection and Monitoring Plan 01 1.03 C
4 Dredging Operations Plan (DOP) 03 1.02 A.1
Draft Public Notice 01 1.03 D
5 Solid Debris Management Plan 03 1.02 A.2
6 Notice of Commencement of Work 03 1.02 A.3
7 Coast Guard Notification 03 1.02 B
8 Independent Surveyor Qualifications 04 1.03
9 National Dredging Quality Management Program Certification Appendix D
10 Pre-Dredge Survey 04 1.03 B
11 PATON Manufacturer’s Data Sheets 05 1.03 A.1
12 Staff Gauge Shop Drawings 06 1.02 A
SUBMITTALS
REQUIRED
DURING
CONSTRUCTION
13 Quality Control (QC) Reports 03 1.03 A
14 Vessel Traffic Control Log 03 1.03 B
15 Disposal Site Verification Log 03 1.03 D
16 Upland Disposal Site Verification (if applicable) 03 1.03 E
17 Post-Dredge Survey 04 1.03 B
18 Daily Progress Surveys 04 1.03 C
19 Staff Gauge Survey 06 1.02 C
20 USACE DQM REPORTED DATA Appendix D
POST-
CONSTRUCTION
SUBMITTALS
21 Notice of Completion of Work 03 1.02 A.3
22 RWQCB Post-Dredge Report 03 1.04 A
1.4. CONTRACT SCHEDULE AND SEQUENCE OF WORK
A. RPD issues a Contract NTP.
B. The Contractor shall have seven (7) working days from the NTP to submit a Dredging Operations Plan (DOP) to the Harbormaster, as described in Section 03 Dredging and Disposal of these Specifications, and as required by the USACE permit and approval letter.
After the DOP is approved by the Harbormaster, the Contractor shall submit the DOP to the regulatory agencies and copy the Harbormaster on the transmittal.
C. Upon receipt of agency approval to dredge, the Contractor shall coordinate a construction schedule with the Harbormaster in relation to permitted events at the Project Site, including the 2026 Rolex Big Boat Series, San Francisco Fleet Week and the St. Francis Yacht Club Fall Dinghy. Consideration should also be given for non-permitted events. Coordinate dates with Project Manager prior to commencement of work.
D. Dredging or in-water work shall not be performed between December 1 to May 31 due to herring restrictions imposed by the California Department of Fish and Wildlife (CDFW). If the RPD obtains written authorization from CDFW to dredge between December 1 to May 31, the RPD will provide onsite herring monitoring. The Contractor shall only conduct dredging activities when the herring monitor is present and authorizes work to proceed. During the restricted period, dredged material shall only be disposed of at approved beneficial reuse placement sites.
1.5. INHERENT DELAYS
A. The San Francisco Marina is an active marina, and recreational and commercial use shall take precedence over the Contractor’s activities. The Contractor shall anticipate inherent delays while conducting dredging and disposal operations. Examples of inherent delays may include safely accommodating recreational or commercial vessel traffic within the surrounding area or along dredged sediment disposal transport routes. Inherent delays may also include, but not be limited to, work slowdowns or temporary shutdowns as needed to maintain compliance with water quality criteria as reflected in regulatory permits, repositioning of dredging equipment, delays caused by surveying, delays caused by marina vessel relocations, and weather delays. No additional compensation will be provided for inherent delays.
1.6. WORK RESTRICTIONS
Permitted Events Stop Work Window
Rolex Big Boat Series September 16-20, 2026
San Francisco Fleet Week October 4-12, 2026
Fall Dinghy October 23-25, 2026
Non-Permitted Event Consideration Window
World Sailing Women’s Race September 29 - October 4, 2026
A. Equipment: Dredging shall be performed using mechanical dredging equipment. Dredged sediment transport to the ultimate disposal or placement site shall be accomplished using waterborne vessels. No on-site stockpiling or trucking will be permitted.
B. Working Hours: The Contractor’s standard allowable working hours are 7 a.m. to 7 p.m., seven (7) days a week. The Contractor may work up to twenty-four (24) hours per day with a Contractor-obtained Cityissued noise permit. No holiday work will be permitted, unless approved in advance by the Harbormaster.
C. Vessel Mooring: At the end of each working day, the Contractor shall moor its equipment and scows in a location as directed by the Harbormaster to avoid or minimize interference with marina traffic.
D. Access: Contractor access shall be established in a pre-construction walk-through with the Harbormaster.
E. Parking: Parking for the Contractor’s employee vehicles shall be confined to the location designated by the Harbormaster.
1.7. PERMITS, APPROVALS, AND NOTIFICATIONS
A. Maintenance Dredging Permits: RPD has obtained permits from the following agencies for maintenance dredging and disposal of sediment from the Project Site (see Appendix A):
USACE, RWQCB, and BCDC.
B. Project Permit Conditions: The Contractor shall comply with all conditions of the project permits, which are appended to the Contract Documents. The following are salient requirements from the permits for reference:
1. Dredging work shall be performed in a manner to minimize resuspension of sediment.
Any significant impacts on the water column will be subject to the regulations of the
RWQCB.
2. The Contractor shall comply with the following USACE submittal requirements: Notice of Commencement of Work, Disposal Site Verification Log, and, if applicable, Upland Disposal Site Verification. See Section 03 Dredging and Disposal.
C. The Contractor shall submit to USACE all required documentation and information as detailed in Appendix D, USACE Dredging Quality Management (DQM) Program.
D. California State Lands Commission (CSLC): This project does not require a lease from CSLC; however, CSLC has been notified of this project and requires that sediment dredged from this project shall not be sold for monetary profit.
E. U.S. Coast Guard (USCG): The Contractor shall comply with the USCG requirements for safe boating and other navigational operations while performing the Work within San Francisco Bay or any other area where the USCG has jurisdiction, including displaying the proper signals during daytime and nighttime operations, when applicable. The Contractor shall comply with all permit conditions regarding participation in the USCG’s Vessel Traffic Control Service.
1. If the Contractor is required to relocate a navigational buoy to complete the Work, this relocation shall be included in the Contractor’s Notice to Mariners required by the
USACE permit. Each buoy shall be replaced in the original location from which it was removed prior to work.
2. The Contractor is required to notify the Coast Guard as specified in Specification Section 03 1.02 B.
F. Contractor's Permits and Licenses: The Contractor shall be responsible for securing and paying for all additional permits and licenses required for operation of equipment, floating or otherwise.
G. The Contractor shall identify the proposed disposal site(s) during the bidding process. If one of the sites is an upland placement site, the Contractor shall provide with its bid proof that the site is permitted and able to accept dredged sediment from this project. The ultimate acceptance of the bid shall be contingent upon regulatory agency approval of the identified disposal site.
2.PRODUCTS (NOT USED)
3.EXECUTION (NOT USED)
4.MEASUREMENT AND PAYMENT (NOT USED)
END OF SECTION
San Francisco Marina West Haror 2025 Maintenance Dredging Section 02 – Mobilization and Demobilization
SECTION 02
MOBILIZATION AND DEMOBILIZATION
1.GENERAL
1.1. WORK INCLUDED
A. The Work under this Section specifically consists of the following Bid Item:
1. Item 01 - Base Bid: Mobilization and Demobilization
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B. The Work under this Section consists of all requirements and services necessary to mobilize and demobilize dredging equipment and labor for maintenance dredging of the San Francisco Marina West Harbor.
C. Mobilization shall include preparatory work including, but not limited to, work necessary for the mobilizing and furnishing at the Project Site; equipment, materials, supplies, and incidentals necessary for work performed; making equipment compliant with the USACE’s Dredging Quality Management (DQM) requirements; cost for pre-paid bonds and insurances;
preparation and submission of all pre-dredging documentation (Section 01 Summary of Work); provision of the Contractor’s superintendent at the Project Site full time; verification of the existing conditions before starting work at the Project Site; posting of all Occupational Safety and Health Administration-required notices and establishment of safety programs; and all cleanup activities.
D. Demobilization shall consist of all work required to prepare the Contractor’s dredging plant and equipment for transfer and removing all dredging plant, equipment, labor, and unused supplies, including project signs, and incidentals from the Project Site at the completion of Contract Work, including the cleanup and restoration of all land-based staging areas used in the execution of the Work.
1.2. REQUIREMENTS
A. The Contractor’s dredging plant and equipment to be used in performing the Work shall be of sufficient size and efficiency to complete the Work described in Section 01 Summary of Work and shall be subject to approval by the Harbormaster. All floating equipment and vessels shall be certified as sea-worthy by the U.S. Coast Guard prior to mobilization at the Project Site.
B. The Contractor’s dredging plant, equipment, labor, and materials shall not be removed from the Project Site prior to completion and acceptance of the Contract work without the written permission from the Harbormaster.
2.PRODUCTS (NOT USED)
3.EXECUTION
3.1. FLOATING MARKER BUOYS
A. There are 4 navigation buoys, and 2 informational buoys located in the Entrance Channel and general work area. The Contractor shall collect the northing and easting points of the existing buoys during the Pre-Dredge Survey. During mobilization, the Contractor may be required to temporarily relocate some or all of these buoys outside of the work area, as directed by the Harbormaster. At the completion of dredging, the Contractor shall restore the buoys to their original position. During the Post-Dredge Survey, the Harbormaster will confirm that the buoys have been restored to their original position.
B. If review of the Post-Dredge Survey indicates that the northings and eastings do not closely match the coordinates of the original PATON locations taken during the pre-dredge survey, the Contractor may be required by the Harbormaster to relocate those PATONs that do not closely match the original coordinates. Costs to relocate PATON and any additional verification will be the sole responsibility of the Contractor.
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C. The lump sum price for mobilization and demobilization shall include the price for temporarily relocating and restoring the existing floating buoys.
4.MEASUREMENT AND PAYMENT
4.1. MOBILIZATION AND DEMOBILIZATION
A. All incidental work required to complete mobilization and demobilization, including but not limited preparation and transport of all crew and equipment to and from the Project Site, and other items relevant to this project and not specifically included in the other Bid Items, shall be included in the unit price for the Mobilization and Demobilization Bid Item (Base Bid Item 01).
B. Measurement for payment will be based on the following:
1. Mobilization will be deemed complete when the Harbormaster determines that all pre-dredging submittals have been received and approved as complete, and that all required dredging equipment is onsite in working order.
2. Demobilization will be deemed complete when the Harbormaster determines that all post-dredging submittals have been received and approved as complete, all dredging equipment has been removed from the Project Site, final cleanup has been achieved, and all dredging work has been accepted as complete.
C. Payment will be made at the Contract lump sum price awarded for “Mobilization and Demobilization” (Base Bid Item 01), in accordance with the following breakdown:
1. Fifty (50) percent of the lump sum price will be paid upon completion of mobilization at the Project Site and the start of dredging work, as approved by the Harbormaster.
2. The remaining fifty (50) percent will be paid upon completion of demobilization, as approved by the Harbormaster.
END OF SECTION
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SECTION 03
DREDGING AND DISPOSAL
1.GENERAL
1.1. WORK INCLUDED
A. The Work under this Section specifically consists of the following Bid Items:
• Item 03a – Base Bid: Maintenance dredge Area A to a Required Dredge Elevation of minus twelve (-12) feet Mean Lower Low Water (MLLW), Area B to minus eleven (-11) feet MLLW, and Area D to minus six (-6) MLLW plus one (1) foot of payable overdredge for all Dredge Areas. Transport and place all material at the San Francisco Channel Bar Disposal Site (SF-8) and/or Montezuma Wetlands Restoration Project (MWRP).
• Item 03b – Base Bid: Maintenance dredge Area A to a Required Dredge Elevation of minus twelve (-12) feet Mean Lower Low Water (MLLW), Area B to minus eleven (-11) feet MLLW, and Area D to minus six (-6) MLLW plus one (1) foot of payable overdredge for all Dredge Areas. Transport and place all material at the San Francisco Channel Bar Disposal Site (SF-8), San Rafael Rock Quarry (SRRQ), or Montezuma Wetlands Restoration Project (MWRP).
• Item 06 – Optional Additive Bid: Maintenance dredge Area C to a Required Dredge Elevation of minus eleven (-11) feet MLLW plus one (1) foot payable overdredge.
Transport and place all material at the San Francisco Channel Bar Disposal Site (SF-08), San Rafael Rock Quarry (SRRQ), or Montezuma Wetlands Restoration Project (MWRP).
• Item 07 – Optional Additive Bid: Maintenance dredge Area E to a Required Dredge Elevation of minus twelve (-12) feet MLLW plus one…
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