State Route 37 Flood Reduction Project

6 Documents in Project


SCH Number
Lead Agency
California Department of Transportation, District 4 (DOT)
Document Title
State Route 37 Flood Reduction Project
Document Type
FIN - Final Document
Present Land Use
Highway, Open space
Document Description
The Project proposes a causeway that would be 35 feet in elevation (North American Vertical Datum of 1988 [NAVD 88]) and consist of four 12-foot-wide lanes, a 22-footwide median with a 2-foot-wide median barrier, two 10-foot-wide inside shoulders, two 12-foot-wide outside shoulders, two 2-foot-wide outside barriers, and a barrier separated 14-foot-wide bicycle or pedestrian path with a 2-foot-wide barrier, for a total roadway width of 114 feet. There would be no change to the long-term vehicular capacity on SR 37. To maintain regional connectivity, the Project would be phased with the most flood-prone component, the Novato Creek Bridge and connecting structures, being built in Phase 1. Phase 2 would raise the rest of SR 37 within the Project area to reduce flooding and improve resiliency.

Contact Information

Maxwell Lammert
Agency Name
California Department of Transportation District 4
Job Title
Acting Office Chief
Contact Types
Lead/Public Agency


Northern California, San Francisco Bay Area
Cross Streets
Atherton Avenue, Hanna Ranch Rd, Marsh Rd, US 101
Total Acres
State Highways
SR 37
Sonoma-Marin Area Rail Transit
Hamilton Ignacio Terminal
Olive Elementary, Lorna Verde Elementary
Novato Creek, Simonds Slough, San Pablo Bay, Petaluma River

Notice of Completion

State Reviewing Agencies
California Air Resources Board (ARB), California Department of Conservation (DOC), California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW), California Department of Fish and Wildlife, Marin Region 7 (CDFW), California Department of Parks and Recreation, California Department of Transportation, District 4 (DOT), California Department of Transportation, Division of Aeronautics (DOT), California Department of Transportation, Division of Transportation Planning (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 Public Utilities Commission (CPUC), California Regional Water Quality Control Board, San Francisco Bay Region 2 (RWQCB), California State Coastal Conservancy (SCC), California State Lands Commission (SLC), California Transportation Commission (CATC), Department of Toxic Substances Control, Office of Historic Preservation, 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
Development Types
Transportation:Highway/Freeway (Climate Resiliency, Flood Mitigation )
Local Actions
Transportation Project
Project Issues
Aesthetics, Agriculture and Forestry Resources, Air Quality, Biological Resources, Cultural Resources, Cumulative Effects, Drainage/Absorption, 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, Transportation, Tribal Cultural Resources, Utilities/Service Systems, Vegetation, Wetland/Riparian, Wildfire


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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