Sandra Hayne Storm Drain Replacement & Creek Daylighting Project


SCH Number
Lead Agency
Hillsborough, City of (City of Hillsborough)
Document Title
Sandra Hayne Storm Drain Replacement & Creek Daylighting Project
Document Type
MND - Mitigated Negative Declaration
Project Applicant
Town of Hillsborough
Present Land Use
Residential District

Document Description
The storm drain replacement portion of the Proposed Project would involve removing the existing 36-inch corrugated metal pipe (CMP) and reinforced concrete pipe (RCP) that runs parallel to Hayne Road and abandoning a portion of 36-inch RCP in place in the Cherry Creek storm drain system. The Proposed Project also includes the demolition of a storm drain inlet and removal of the two associated 24-inch RCP tributary twin storm drains that run along the southeastern edge of the Project Site and transport storm water across Hayne Road. An 18-inch storm drain whose inlet is located on Sandra Road and a 24-inch storm drain whose inlet is on the eastern side of Hayne Road would also be removed. In addition to replacing the failing storm drains, the Proposed Project would restore a section of Cherry Creek to a more natural state.

Contact Information
Daniel Gonzales
Town of Hillsborough
1320 La Honda Road
Hillsborough, CA 94010

Phone : (650) 375-7588


37°33'6.64"N 122°21'39"W
San Mateo
Cross Streets
85 Sandra Road, 1465 San Raymundo, and a private parcel on Hayne Road with no site
Total Acres
Parcel #
030-272-010 and 030-273-010
State Highways
West Hillsborough Elementary

Notice of Completion

Review Period Start
Review Period End
Development Type
Other (Storm Drain Replacement & Creek Daylighting Project)
Local Action
Project Issues
Aesthetic/Visual Agricultural Land Air Quality Archaeologic-Historic Biological Resources Drainage/Absorption Flood Plain/Flooding Forest Land/Fire Hazard Geologic/Seismic Minerals Noise Population/Housing Balance Public Services Recreation/Parks Schools/Universities Septic System Sewer Capacity Soil Erosion/Compaction/Grading Solid Waste Toxic/Hazardous Traffic/Circulation Vegetation Water Quality Water Supply Wetland/Riparian Land Use Cumulative Effects
Reviewing Agencies
California Air Resources Board California Department of Conservation California Department of Fish and Wildlife, Bay Delta Region 3 California Department of Forestry and Fire Protection California Department of Parks and Recreation California Department of Transportation, District 4 California Department of Water Resources California Highway Patrol California Native American Heritage Commission California Natural Resources Agency California Regional Water Quality Control Board, San Francisco Bay Region 2 Office of Historic Preservation State Water Resources Control Board, Division of Water Quality State Water Resources Control Board, Divison of Financial Assistance


Environmental Document
1_Sandra-Hayne Draft ISMND   PDF 6840 K 2_Appendix Cover and Table of Contents   PDF 388 K Appendix A_Site Plans   PDF 18470 K Appendix B_Aquatic Resource Delineation Report   PDF 2677 K Appendix C_Biological Resources Assessment   PDF 4912 K Appendix D_Update Memo to Biological Resources Assessment   PDF 1122 K Appendix E_Tree Survey Report   PDF 5201 K Appendix F_Cultural Resources Report   PDF 57 K NOA_NOI_Sandra Hayne MND   PDF 89 K Sandra-Hayne_Summary_Form_for_Document_Submittal   PDF 621 K
NOC_Sandra Hayne Signed 08-18-2020   PDF 1061 K

Disclaimer: The Governor’s Office of Planning and Research (OPR) 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. You may also contact the OPR via email at or via phone at (916) 445-0613. For more information, please visit OPR’s Accessibility Site.

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