Apanolio Creek Fish Passage Restoration Project, Barrier 3


SCH Number
Lead Agency
San Mateo County
Document Title
Apanolio Creek Fish Passage Restoration Project, Barrier 3
Document Type
MND - Mitigated Negative Declaration
Present Land Use
Stream channel / Planned Agricultural Development / Agriculture

Document Description
The applicant is proposing to modify an existing in-stream barrier that inhibits the up-stream migration of steelhead fish. The barrier, a perched culvert, creates an obstruction to fish passage. Erosion beneath the 4' x 4' box culvert's opening has created an approximately six foot drop from the culvert invert to the stream channel bottom. The pool at the base of the culvert is generally less than 1.5 feet deep and the stream channel is sandy and prone to incising. The applicant is proposing to remove the culvert and replace it with a three-sided clear span bridge. The stream channel will be re-graded and a boulder step-pool sequence will be installed to provide year-round fish passage and grade control. Upon the completion of grading work, an extensive re-vegetation plan will be implemented. In order to construct the proposed improvements, the applicant will construct a coffer dam out of sandbags, with pipes to convey any stream flows around the work area.

Contact Information
Mike Schaller
San Mateo County Planning & Building Division
Lead/Public Agency
455 County Center, 2nd Floor
Redwood City, CA 94063

Phone : (650) 363-1849


Half Moon Bay
San Mateo
Parcel #
State Highways
Apanolio Creek

Notice of Completion

Review Period Start
Review Period End
Development Type
Other (Habitat Restoration)
Local Action
Coastal Permit
Project Issues
Aesthetics Biological Resources Drainage/Absorption Geology/Soils Hydrology/Water Quality Vegetation Wetland/Riparian Wildlife
Reviewing Agencies
California Coastal Commission (CCC) California Department of Conservation (DOC) California Department of Parks and Recreation California Department of Transportation, District 4 (DOT) California Highway Patrol California Native American Heritage Commission (NAHC) California Regional Water Quality Control Board, San Francisco Bay Region 2 (RWQCB) Department of Water Resources Resources Agency State Water Resources Control Board, Division of Water Quality California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW)

Disclaimer: The document was originally posted before CEQAnet had the capability to host attachments for the public. To obtain the original attachments for this document, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at state.clearinghouse@opr.ca.gov or via phone at (916) 445-0613.

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