Welcome to Caltrans District 4

Antioch Bridge Updates

  • 2/26/10 - Work on Antioch Bridge; Expect 15 Minute Traffic Delays

    Caltrans District 4 will be closing one direction of the two-lane Antioch Bridge on Monday, March 1 and Tuesday, March 2 from 9 p.m. to 5 a.m. each night in order to place nets to prevent birds from nesting. This is in preparation for the seismic retrofit work on this toll bridge to begin this April. One way traffic control will be in place on one side of the bridge with the assistance of theCalifornia Highway Patrol. Toll collection will be suspended during these hours. Total traffic volume for the time period is approximately 200 vehicles.

    Local cities, fire, police, community groups and local and regional media have been notified. Changeable message signs are posted. Fliers will be handed out at toll booths from this Friday to Sunday night between 8 p.m. and 6 a.m.

    This work is being done in conjunction with the Bay Area Toll Authority

  • 2/25/10 - Antioch bridge pre-construction begins monday night with one directional traffic control