Palo Alto Flood Basin Tide Gate Structure Replacement Project

2 Documents in Project

Summary

SCH Number
2020090237
Lead Agency
Santa Clara Valley Water District
Document Title
Palo Alto Flood Basin Tide Gate Structure Replacement Project
Document Type
MND - Mitigated Negative Declaration
Received
Present Land Use
Public Conservation Land / Recreational Trail
Document Description
Santa Clara Valley Water District (Valley Water) is proposing to replace the existing Palo Alto Flood Basin tide gate structure in order to maintain flood protection in the communities surrounding the flood basin and along the U.S. Highway 101 corridor. The Project would involve construction of a new 132-foot-wide tide gate structure slightly inboard (upstream) and southeast of the existing 113-foot-wide deteriorating tide gate structure, removal of the existing tide gate structure and levee, and construction of a new levee that ties into the new tide gate structure. Construction of the Project would occur in two phases with separate dewatering systems to allow continued operation of a tide gate throughout construction. Specific project elements include up to 2.3 miles of levee trail resurfacing (for access); installation of two sheet pile dewatering systems; construction of the new tide gate structure on a concrete foundation supported by drilled piles; demolition and removal of the existing tide gate structure and levee; and construction of a new levee connecting to the new tide gate structure. Construction would span up to 5 years but would be limited to September 1 through January 31 annually to avoid and minimize impacts on biological resources.

Contact Information

Name
Alex Hunt
Agency Name
Santa Clara Valley Water District
Contact Types
Lead/Public Agency

Name
Agency Name
Santa Clara Valley Water District
Contact Types
Project Applicant

Location

Cities
Palo Alto
Counties
Santa Clara
Regions
Northern California, San Francisco Bay Area
Cross Streets
n/a (Adobe Creek Loop Trail)
Zip
94303
Total Acres
8.9
Parcel #
008-05-005
State Highways
None
Railways
None
Airports
Palo Alto Airport
Schools
None
Waterways
San Francisco Bay, Palo Alto Flood Basin
Township
6S
Range
2W
Section
9
Base
Mt.Diabo

Notice of Completion

Review Period Start
Review Period End
Development Types
Water Facilities (Tide Gate Replacement)(MGD n/a)
Project Issues
Aesthetics, Agriculture and Forestry Resources, Air Quality, Biological Resources, Cultural Resources, Cumulative Effects, Flood Plain/Flooding, Geology/Soils, Greenhouse Gas Emissions, Hazards & Hazardous Materials, Hydrology/Water Quality, Land Use/Planning, Mineral Resources, Noise, Population/Housing, Public Services, Recreation, Schools/Universities, Solid Waste, Transportation, Tribal Cultural Resources, Vegetation, Wetland/Riparian, Wildfire, Wildlife
Reviewing Agencies
California Air Resources Board (ARB), California Department of Conservation (DOC), California Department of Fish and Wildlife, Marin Region 7 (CDFW), California Department of Parks and Recreation, California Department of State Parks, Division of Boating and Waterways, California Department of Transportation, District 4 (DOT), California Department of Transportation, Division of Aeronautics (DOT), California Department of Water Resources (DWR), California Governor's Office of Emergency Services (OES), California Highway Patrol (CHP), California Native American Heritage Commission (NAHC), California Natural Resources Agency, California State Lands Commission (SLC), San Francisco Bay Conservation and Development Commission (BCDC), State Water Resources Control Board, Division of Drinking Water, State Water Resources Control Board, Division of Water Quality, State Water Resources Control Board, Division of Water Rights, State Water Resources Control Board, Divison of Financial Assistance, California Regional Water Quality Control Board, San Francisco Bay Region 2 (RWQCB), California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW)
Reviewing Agency Comments
California Regional Water Quality Control Board, San Francisco Bay Region 2 (RWQCB), California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW)

Attachments

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