Mare Island Causeway Bridge Construction

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Photo Credit: Ronald Becker

The Mare Island Causeway Bridge, originally built in 1934, is a vehicle and pedestrian bridge that straddles the Napa River and serves as the connector between the Greater Vallejo area and Mare Island. In 2016, the City completed an upgrade project on the Bridge, replacing a 50-foot span of bridge timber with steel. The iconic Bridge requires additional maintenance repairs to extend the Bridge's serviceable life and improve pedestrian and driver safety. These repairs are expected to include:


• Bridge deck and pile repairs

• Sidewalk replacement and ADA improvements

• Lighting and handrail repairs

• Repainting the Bridge's steel lift span, towers, and historic logo

• Deck methacrylate coating (Painting)

• Concrete spall and crack repairs

• Fender system repair for marine traffic safety

• Replacement of underwater anodes

The Mare Island Causeway Bridge, originally built in 1934, is a vehicle and pedestrian bridge that straddles the Napa River and serves as the connector between the Greater Vallejo area and Mare Island. In 2016, the City completed an upgrade project on the Bridge, replacing a 50-foot span of bridge timber with steel. The iconic Bridge requires additional maintenance repairs to extend the Bridge's serviceable life and improve pedestrian and driver safety. These repairs are expected to include:


• Bridge deck and pile repairs

• Sidewalk replacement and ADA improvements

• Lighting and handrail repairs

• Repainting the Bridge's steel lift span, towers, and historic logo

• Deck methacrylate coating (Painting)

• Concrete spall and crack repairs

• Fender system repair for marine traffic safety

• Replacement of underwater anodes

  • Exciting Improvements Ahead: Mare Island Causeway Bridge Repairs Set to Begin!

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    Big news for our community—essential upgrades to the Mare Island Causeway Bridge are on the way! This long-anticipated repair project will enhance safety, improve infrastructure, and ensure a smoother commute for years to come.


    What to Expect:

    • July 17, 2025: Preliminary preparations will start off-site, with NO impact to current traffic flow.
    • August 4, 2025: Traffic will be reduced to one lane as on-site construction begins. Please plan ahead and allow extra time for travel.


    The project is expected to run for approximately 18 months, with an anticipated completion date of January 5, 2027.


    We appreciate your patience and support as we work to build a stronger, safer connection between Vallejo and Mare Island. The short-term inconvenience will lead to long-term benefits for everyone who lives, works, and travels through our city.


    Let’s build the future—together!

    Emergency services (Police & Fire) will have priority at all times.


    If you have questions contact:

    Sam Kumar, Project Manager

    (707) 648-4432

    Sam.Kumar@cityofvallejo.net

  • Join us tonight!

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    Join us to discuss what's happening on the bridge!

    In 2016, we completed an upgrade project on the bridge replacing a 50-foot span of timber with steel; however, the iconic bridge now requires additional maintenance repairs to extend the bridge’s serviceable life and improve pedestrian and driver safety.

    Preventative maintenance project repairs to include:

    - Bridge deck and pile repairs
    - Sidewalk replacement and ADA improvements
    - Lighting and handrail repairs
    - Repainting the steel lift span, towers, and historic logo
    - Concrete spall and crack repairs
    - Fender system repair for marine traffic safety
    - Replacement of underwater anodes

    📆 Wednesday, December 8, 2021
    ⏰ 6:30 p.m. to 7:30 p.m.
    🌐 bit.ly/MareIslandMeeting (case sensitive)

Page last updated: 03 Jul 2025, 11:24 AM