Entrada Way Culvert Slip-out Bank Stabilization Project
Summary
SCH Number
2025120514
Lead Agency
San Mateo County Department of Public Works
Document Title
Entrada Way Culvert Slip-out Bank Stabilization Project
Document Type
MND - Mitigated Negative Declaration
Received
Present Land Use
General Plan Designation: Low Density Residential, Neighborhood Commercial
Zoning: One Family Residential District/Residential Density District 10, Limited Highway Frontage District/Residential Density District 10
Surrounding Land Uses and Setting: Low Density Residential, Neighborhood Commercial, Open Space, and Institutional.
Document Description
The County of San Mateo Department of Public Works (County) has prepared this Initial Study/Mitigated Negative Declaration (IS/MND) to provide the public, responsible agencies, and trustee agencies with information about the potential environmental effects of the proposed Entrada Way Culvert Slip-out Bank Stabilization Project (Project or Proposed Project). The Proposed Project involves a biotechnical approach to stabilize and repair the left bank of La Honda Creek directly upstream (north) from Entrada Way in the unincorporated community of La Honda in San Mateo County, California. The bank failure threatens existing infrastructure, including stormwater infrastructure, the Entrada Way roadway, and overhead utility poles located at the top of the bank. The Proposed Project includes construction of an engineered log structure (cribwall) along the lower bank with vegetated soil lifts (VSLs) on the upper slopes above the cribwall. The existing culvert headwall parallel to the roadway would be extended approximately 22 linear feet (LF) toward the left bank. The Proposed Project also includes repositioning the creek thalweg to its original pre-erosional alignment away from the left bank and closer to the center of the channel in line with the culvert. Other Project activities include realignment of an associated storm drain pipe to discharge downstream of Entrada Way and minor roadway improvements.
Contact Information
Name
Julie Casagrande
Agency Name
County of San Mateo Department of Public Works
Job Title
Natural Resource Manager
Contact Types
Lead/Public Agency / Project Applicant
Phone
Name
Zachary Cornejo
Agency Name
Montrose Environmental
Job Title
Associate Planner
Contact Types
Consulting Firm
Phone
Location
Coordinates
Cities
La Honda
Counties
San Mateo
Regions
Northern California, Unincorporated
Cross Streets
Entrada Way near Highway 84/La Honda Road and Entrada Way
Zip
94020
Total Acres
2.0
Parcel #
See Other Location Info or NOC Supplemental Form
State Highways
SR 84
Railways
None
Airports
None
Schools
La Honda Elementary School
Waterways
See Other Location Info or NOC Supplemental Form
Township
7S
Range
4W
Section
14
Base
MDBM
Other Location Info
APNS: 083-051-110, 083-051-120, 083-051-060, 083-051-150, 083-093-130, 083-370-010, 083-092- 190, 083-051-070, 083-051-140, and 083-012-060
Waterways: La Honda Creek, Alpine Creek, San Gregorio Creek, Mindego Creek, Woodruff Creek, Kingston Creek, McCormick Creek, Woodhams Creek, and Harrington Creek
Notice of Completion
State Review Period Start
State Review Period End
State Reviewing Agencies
California Air Resources Board (ARB), California Department of Forestry and Fire Protection (CAL FIRE), California Department of Parks and Recreation, California Department of State Parks, Division of Boating and Waterways, California Department of Toxic Substances Control (DTSC), California Department of Water Resources (DWR), California Highway Patrol (CHP), California Native American Heritage Commission (NAHC), California Natural Resources Agency, California Regional Water Quality Control Board, San Francisco Bay Region 2 (RWQCB), Office of Historic Preservation, State Water Resources Control Board, Division of Drinking Water, California Department of Transportation, District 4 (DOT), California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW)
State Reviewing Agency Comments
California Department of Transportation, District 4 (DOT), California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW)
Development Types
Other (Slope Repair, Restoration)
Local Actions
Project Approval
Project Issues
Aesthetics, Agriculture and Forestry Resources, Air Quality, Biological Resources, Cultural Resources, Cumulative Effects, Energy, Flood Plain/Flooding, Geology/Soils, Greenhouse Gas Emissions, Hazards & Hazardous Materials, Hydrology/Water Quality, Land Use/Planning, Mandatory Findings of Significance, Mineral Resources, Noise, Population/Housing, Public Services, Recreation, Schools/Universities, Solid Waste, Transportation, Tribal Cultural Resources, Utilities/Service Systems, Vegetation, Wetland/Riparian, Wildfire
Public Review Period Start
Public Review Period End
Attachments
Draft Environmental Document [Draft IS, NOI_NOA_Public notices, OPR Summary Form, Appx,]
Notice of Completion [NOC] Transmittal form
State Comment Letters [Comments from State Reviewing Agency(ies)]
Disclaimer: The Governor’s Office of Land Use and Climate Innovation (LCI) accepts no responsibility for the content or accessibility of these documents. To obtain an attachment in a different format, please contact the lead agency at the contact information listed above. For more information, please visit LCI’s Accessibility Site.