Gazos Creek Watershed Improvements Project - Phase 1

2 Documents in Project


SCH Number
Lead Agency
San Mateo County
Document Title
Gazos Creek Watershed Improvements Project - Phase 1
Document Type
MND - Mitigated Negative Declaration
Present Land Use
Public infrastructure and open space / Resource Management - Coastal Zone / General Open Space
Document Description
The applicant proposes to make watershed improvements at several locations throughout the Gazos Creek watershed in unincorporated San Mateo County. Both federally threatened steelhead and federally endangered coho salmon are present in Gazos Creek. The proposed project involves bank repair and debris management at the location of a large redwood tree fall and modifications to five logjams to improve migration to upstream spawning and rearing habitat for steelhead and coho salmon and protect the adjacent roadway. The work is designed to improve fish passage and bank and roadway stability while also preserving rearing and over wintering habitat that is provided by the large in-channel wood and associated pools. The proposed modification method does not involve complete removal of the logjams but rather clearing a path for stream flow. Large rootwads and conifers providing habitat will not be removed. Sections of very large spanner logs will be strategically cut to promote flow. Some wood will be removed and placed against the banks for protection. Smaller non-conifer wood and debris may be moved onto the adjacent terraces above ordinary high water level.

Contact Information

Brent Spencer
Agency Name
San Mateo County Department of Public Works
Contact Types
Lead/Public Agency


San Mateo
Cross Streets
Cloverdale Road and Gazos Creek Road
Total Acres
Parcel #
Public R-O-W
State Highways
Gazos Creek
Other Location Info
City/Nearest Community: Pescadero

Notice of Completion

State Review Period Start
State Review Period End
State Reviewing Agencies
California Coastal Commission (CCC), California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW), California Department of Parks and Recreation, California Department of Transportation, District 4 (DOT), California Native American Heritage Commission (NAHC), California Regional Water Quality Control Board, San Francisco Bay Region 2 (RWQCB), Department of Water Resources, Resources Agency
Development Types
Transportation:Other (Creek Restoration)
Local Actions
Public Works Project
Project Issues
Biological Resources, Coastal Zone, Drainage/Absorption, Flood Plain/Flooding, Geology/Soils, Hydrology/Water Quality, Noise, Public Services, Transportation, Vegetation, Wetland/Riparian, Wildlife

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 or via phone at (916) 445-0613.

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