SAN RAFAEL CREEK
OPERATIONS AND MAINTENANCE
PROJECT LOCATION AND DESCRIPTION
San Rafael Creek is located north of San Francisco Bay in Marin County. Project Operations and Maintenance (O&M) is in a shallow draft channel used mainly for light commercial and recreational activities. The O&M schedule provides for a seven-year cycle for maintenance dredging to a depth of -8 feet Mean Lower Low Water (MLLW) for the Across-the-Flats Channel in San Francisco Bay to the mouth of San Rafael Creek, and a four-year cycle for maintenance dredging to a depth of -6 feet MLLW for the Inner Canal Channel to the head of navigation at the Grand Street Bridge in the City of San Rafael. The Inner Canal and Across-the-Flats Channels were last dredged in FY 12 to a depth of -5 feet MLLW, with placement of the dredged material at the San Pablo Bay Disposal Site (SF-10), an unconfined aquatic disposal site.
|
TOTAL FUNDING
|
|
|
TOTAL COST
|
N/A
|
|
FEDERAL COST
|
N/A
|
|
NON-FEDERAL COST
|
N/A
|
|
|
|
|
TOTAL FEDERAL COST THROUGH FY 2023
|
$4,853,250
|
|
FY 2024 BUDGET
|
$ 0
|
|
COST TO COMPLETE
|
N/A
|
FY23 ACCOMPLISHMENTS
- Environmental Work Window extended to allow dredging until February 28, 2023.
- O&M Maintenance Dredging of the San Rafael Creek (Inner Canal and Across-the-Flats Channel) completed February 22, 2023 with 61,300-CY of beneficial re-use debt incurred.
- MOU with City of San Rafael signed December 16, 2022 provided clean fill in Reach 4 Area 8 after Federal dredging effort completed (placed between February 22 through 24, 2023) as requested by US Fish & Wildlife Service, National Marine Fisheries Service (NMFS).
- Condition surveys of San Rafael Creek and Across-the-Flats completed August 17, 2023 and posted to the District’s Hydro Survey website.
FY24 ACCOMPLISHMENTS
- Approximately 11,700-CY was placed for beneficial re-use from the Suisun Bay Channel O&M Maintenance Dredging which completed 30 Nov 23. The remaining 49,600-CY of beneficial re-use debt will carry-over into FY25.
- The San Rafael Creek Channel, 2023 Chemistry Verification, Sampling Area 7 Report was provided to Dredged Material Management Office (DMMO) in February 2024 and will be provided to NMFS.
ISSUES AND OTHER INFORMATION
- The City of San Rafael is the NFS.
- The NFS must cost share for upland disposal containment of any material unsuitable for unconfined aquatic disposal. Originally the NFS provided an upland site for the Inner Canal portion of the project, but that site is no longer available.
- The NFS is now required to cost‑share 20% of the tipping fee for upland disposal of dredged material.
CONGRESSIONAL INTEREST
- 2nd District, Rep. Jared Huffman
POINT OF CONTACT
- Deputy for Project Management, Thomas R. Williams, 415-503-6560
Updated on 5 March 2024
Click Map to Zoom In