Highway 37

State Route 37 follows 21 miles along the northern shore of San Pablo Bay linking US 101 in Novato, Marin County  with Interstate 80 (I‐80) in Vallejo, Solano County. It serves as a vital connection between Marin , Sonoma , Solano  and Contra Costa and the Central Valley. It is the northernmost non‐mountainous east‐west link between US 101 and I‐5 (via I‐80 and I‐505) in the State. 

Planning a More Resilient Highway 37 for All
Think about Highway 37 as more than just a commute! The future of this corridor demands finding solutions to chronic traffic congestion and periodic flooding. But it will also require balancing transportation needs with protecting and enhancing sensitive marshland habitats. Planning a long-term solution presents an opportunity to provide bicycle, pedestrian, transit, and carpool options for all travelers. For more information, visit the Resilient 37 page.

Traffic Forecast
Growing housing demand in the North Bay counties has produced a housing market that a high percentage of household cannot afford. Consequently, many have to live far away from their jobs.  This jobs/housing imbalance is one cause of congestion Bay Area wide, and specifically for SR 37.  Average Annual Daily Trips are projected to increase from 45,000 in 2013 to 58,000 by 2040.

Sea Level Rise
SR 37 is protected by a complex system of interconnected levee which makes the corridor vulnerable to Sea Level Rise inundation and flooding now and in future.

SR 37 MOU Partnership
In December 1, 2015, the Congestion Management Agencies (CMA) of Marin, Napa, Solano and Sonoma Counties agreed to form a partnership through a Memorandum of Understanding (MOU) to develop an expedited funding, financing and project implementation strategy for the reconstruction of SR 37 to withstand rising seas and storm surges while improving mobility and safety along the route.

Follow Highway 37:

Highway 37 Meetings 
Policy CommitteeJanuary 6, 2022 Agenda Packet

Public Comment
Ed Schultze

Item 4.2: US 101 to SR121 - Design Alternative Analysis (DAA) Wrap-Up
Item 4.3: Corridor Planning and Environmental Linkages (PEL) Update
Item 4.5: Tolling Legislation/Potential Authority-BAIFA
Item 4.6: Caltrans SHOPP Project Update
State Route 37 (SR 37) Planning and Environmental Linkages (PEL) - January 25, 2022Caltrans will hold a virtual public meeting on January 25, 2022 to share information about the PEL study process and to get your input. Please check back here for meeting information.
State Route 37 Flood Reduction Project Virtual Scoping Meeting - November 17, 2021, 5:30pm - 7:30pmClick here to view the Public Notice
Policy CommitteeOctober 7, 2021 Agenda Packet
Policy CommitteeJune 6, 2021 Agenda Packet
Planning & Environmental Linkages (PEL) StudyWednesday, May 26, 2021 from 5:30 - 7:30 PM
Highway 37 Town Hall: Hosted by Senator Mike McGuire and Senator Bill DoddClick here to watch the April 15, 2021 Town Hall

Presentation: April 15, 2021 Town Hall
Policy CommitteeMarch 4, 2021 Agenda Packet

Item 4.1: Public Engagement in April
Item 4.2: Corridor Planning and Environmental Linkages (PEL)
Item 4.4: US 101 to SR 121 - Flood Reduction
Policy CommitteeJanuary 7, 2021 Agenda Packet

Item 4.4: Caltrans Update
Item 4.5: SR 37 Solano Fairgrounds DDI update
Item 4.6: Solano County Access Plan
Policy CommitteeOctober 1, 2020 Agenda Packet

Item 4.6: Interim B – Congestion Relief – Sears Point to Mare Island
Item 4.8: Caltrans Webmap
Proposed SR 37 Traffic Congestion Relief Project - Notice of Preparation and Virtual Scoping Open House Proposed SR 37 Traffic Congestion Relief Project: July 22, 2020, 6:00 - 7:30 PM
July 22, 2020, 6:00-7:30 PM
Policy CommitteeJune 4, 2020 Agenda Packet

Item 4.1: Sonoma Creek Baylands Strategy,Item 4.2: Funding update - Bridge Tolls to Sales Tax, Item 4.3: 2020 SHOPP Programming - Funding Confirmed, Item Flooding US 101 to SR 121, Item 4.4.2: Ultimate Improvements Update
Policy CommitteeMarch 5, 2020 Agenda Packet

FASTER Bay Area, FASTER Bay Area Funding Request, Plan Bay Area 2050 update
Policy CommitteeCANCELLED - January 16, 2020 Agenda Packet
Policy CommitteeDecember 5, 2019 Agenda Packet
Policy CommitteeJune 6, 2019 Agenda Packet

Item 4.1: Grand Bayway SR 37 Public Access, Item 4.2: STA Water Transit Study, Item 4.3: Ride Amigos,Item 4.4: Passenger Rail Service - Novato to Suisun City Study
Policy CommitteeMarch 7, 2019 Agenda Packet

NVTA: Transit Feasibility Study, Caltrans: Highway 37 Storm Responses
Policy CommitteeJanuary 10, 2019 Cancellation Notice
Policy CommitteeNovember 8, 2018 Agenda Packet

SR 37: Resilient Corridor Program, SR 37 Projects, SR 37 Travel Behavior & Transit Feasibility Study Preliminary Findings
Policy CommitteeJuly 20, 2018 Agenda Packet

Summary of SR 37 Focus Groups: Potential Conceptual Alternatives, Resilient SR 37, SR37/Fairgrounds Dr Interchange Improvements, Common Ground presentation
Policy CommitteeMay meeting Cancelled.
Next meeting will be held on Friday, July 20th, 2018
Policy CommitteeMarch 1, 2018 Agenda Packet, SR 37 Corridor Plan, Appendix D - Response to Comments, TRANSDEF Hwy 37 Corridor Plan comments

Resilient by Design, SHOPP Program Update and Route 37/121 Signing/Striping, Highways 37 & 121 Intersection Update, SR 37 Project Initiation Document, Levee and Shoreline Analysis Task, SR-37 - Segment A Sea Level Rise Corridor Improvement Study, SR 37 Survey & Focus Groups
Policy CommitteeJanuary 4, 2018 Agenda Packet

BCDC's Response to Rising Sea Level in the Bay Area, Resilient by Design: Progress Update, Hwy 37 Adaptation to Rising Seas, Caltrans: Regional Workload, Highways 37 & 121 Intersection Update, SR 37 Survey Report, Update on SR 37 Corridor Funding, Solano Express Handout
Policy CommitteeNovember 2, 2017 Agenda Packet, Additional Comment Letters

SR 37 Transportation and Sea Level Rise Corridor Improvement Plan, SR-37/SR-121 Lane Lines Update - Eastbound Route 37 Proposal, Working Together for a Resilient North Bay Landscape, Baylands Group Presentation, The San Francisco Bay Trail presentation, Resilient SR-37

Policy CommitteeSeptember 25th, 2017 Agenda Packet, Item 4A: State Route 37 Transportation and Sea Level Rise Corridor Improvement Plan Presentation by MTC
Open HouseVALLEJO - Monday, Oct. 2nd 6 pm to 8 pm at the Vallejo Naval and Historical Museum 734 Marin Street, Vallejo, State Route 37 Improvement Plan Boards, Open House Handouts
Open HouseSONOMA - Thursday, Sept. 28th 6 pm to 8 pm at Sonoma Veterans Memorial Building 126 First Street West, Sonoma, State Route 37 Improvement Plan Boards, Open House Handouts
Open HouseAMERICAN CANYON - Wednesday, Sept. 27th 6 pm to 8 pm at the American Canyon Council Chambers 4381 Broadway Street, American Canyon, State Route 37 Improvement Plan Boards, Open House Handouts
Open HouseNOVATO - Wednesday, Sept. 20th 6 pm to 8 pm at The Key Room 1385 Hamilton Parkway, Novato, State Route 37 Improvement Plan Boards, Open House Handouts
Policy CommitteeMay 4, 2017 Agenda, SR 37: Affordability Analysis and Financing Options
Policy CommitteeMarch 2, 2017 Agenda, SR 37 Flooding Between 101 and Novato Creek Emergency Project ,SR 37 Flooding and Sea Level Rise, SR 37 Design Alternative Assessment, Novato Watershed Program,SR 37: Affordability Analysis & Decision Roadmap
Policy CommitteeFebruary 2, 2017 Agenda , Highway 37 Road Closures & Recent Flood Occurrence , 2016 Policy Committee Accomplishments , Tentative Work Plan , Public Outreach , Policy Committee Reccommendations , Revenue Options
Policy CommitteeJanuary 5, 2016 - Cancelled
Policy CommitteeNovember 3, 2016 Agenda Packet, PFAL Presentation
Policy CommitteeSeptember 1, 2016 Agenda Packet, UBP Letter of Intent, UBP Presentation, PFAL Presentation, Rail Presentation, Policy questions
Policy CommitteeJuly 7, 2016 (Agenda)
Policy CommitteeMay 5, 2016 (Agenda, BATA Tolling presentation, UC Davis Sea Level Rise Analysis)
Policy CommitteeMarch 3, 2016 (Agenda)
Policy CommitteeJanuary 7, 2016 (Agenda)
Policy CommitteeNovember 5, 2015 (Agenda)

SR37: Public Scoping Comment Period Extension (Dec. 6 2021)
State Route 37 Comprehensive Multimodal Corridor Plan (Oct. 2021)
Sonoma Land Trust - Highway 37 Redesign [External Link] , Sonoma Creek Baylands Strategy - Executive Summary
State Route 37 Resilient Corridor Program - August 2019
State Route 37 Alternatives Assessment Report for the Ultimate Project State Route 37 from SR 121 to the Mare Island Interchange (Segment B) – April 2019
SR 37 Travel Behavior and Transit Feasibility Study, Appendix B: Segment B Summary Origin-Destination Data, Appendix C : Segment B Summary Scores
SR 37 Travel Behavior and Transit Feasibility Study, Appendix B: Segment B Summary Origin-Destination Data, Appendix C : Segment B Summary Scores
Caltrans SR-37 Project Initiation Document - Final Draft

Attachment A: Location Map, Attachment B: Preliminary Layouts, Attachment B: Preliminary Layouts (con't), Attachment C: Typical Cross-Sections, Attachment D: Cost Estimate, Attachment E: Preliminary Environmental Analysis Report (PEAR), Attachment F: Traffic Engineering Performance Assessment (TEPA), Attachment G: Risk Register, Attachment H: Right-of-Way Conceptual Cost Estimate Component, Attachment I: Transportation Planning Scoping Information Sheet, Attachment J: Stormwater Documentation
SR-37 Segment A Sea Level Rise Corridor Improvement Study - Final Draft
SR 37 Open House Summary, Summary of SR 37 Survey Results, Summary of SR 37 Focus Groups, Summary of SR 37 Focus Groups, SR 37 Wall Boards
SR 37 Transportation and Sea Level Rise Corridor Improvement Plan with comments - June 2018 updated exhibits 12 & 18a
State Route 37 Corridor Financial Opportunities Analysis- Final Report
SMART Rail System Expansion and Opportunities- presented to SMART Board of Directors, November 1, 2017
SR 37 Transportation and Sea Level Rise Corridor Improvement Plan - Draft - September 2017
Near Term Implementation and Bay Area Toll Authority - 8th Toll Bridge Proposal - July 10, 2017
Affordability Analysis & Financing Options - PFAL - July 10, 2017
State Route 37 Design Alternative Assessment (4/5/17 town hall slides)
Sea Level Rise Adopted Policy Guidance, California Coastal Commission
Caltrans Integrated Traffic, Infrastructure and Sea Level Rise Analysis
2017 Work Plan - PDF 60 kB
2016 Accomplishments - PDF 67 kB
Overview of Highway 37 Project, 2016 - PDF, 3MB
State Route 37 Corridor White Paper, 2016 - PDF, 851, kB
Transportation Concept Report, 2015 - PDF, 5 MB
Highway 37 Origin and Destination Analysis, 2014 - PDF, 2MB
State Route 37 Stewardship Study, 2013 - PDF, 2MB
State Route 37 Stewardship Study (website), Integrated Traffic, Infrastructure and Sea Level Rise Analysis
Passenger Rail Corridor Potential

Case Studies      
Public Private PartnershipsSBXUS-36PresidioI-4S. NorfolkG. Bush
Project Size$635 million$497 million$1.1 billion$2.9 billion$142 million$1.2 billion
Project Delivery Performance12 year delayOn-timeOn-timeUnder construction9 months after plannedOn-time
Toll Rate Setting ControlPrivate sector sets toll up to 18.5% cap on equity return Private sector sets dynamic toll to achieve specified service requirementNo tollsPublic sector sets dynamic toll to achieve specific service levelPrivate sector set toll rates with no defined limitPublic sector
Revenue ControlShared with public sector beyond a defined limitShared with public sector beyond a defined limitNot applicablePublic sectorPrivate sectorPublic sector
Established Traffic HistoryNo
Competitive Procurement ProcessPartial (RFQ only)YesYesYesNoNo
Environmental Approval Process ResponsibilityPrivate sector, initiated post awardPublic sector, substantially completed prior to procurementPublic sectorPublic sectorPrivate sectorPublic sector

Subscribe to our Resilient 37 meeting announcement list to receive notifications of meeting events and other information.  |  Sign up for Resilient 37 announcements