10/17/2026
For the 3-day weekend event at Mare Island, please note Vtown's notice of the causeway closure for tomorrow. You can take HWY 37 or Tennessee Street to get there, but not the causeway bridge. Thank you, and as always, I hope this information helps you get there.
City of Vallejo Notice:
Mare Island Causeway Bridge Closed to ALL traffic on Saturday, October 17, 2026
The Mare Island Bridge will be closed to ALL traffic—pedestrians, bicyclists, vehicles, and marine—on Saturday, October 17, 2026, from 9 AM to 3:45 PM to address an urgent corrective maintenance issue. The east side of the span has developed a mechanical imbalance causing a vertical misalignment (span skew). Due to the nature of these repairs, a full closure is required. Vehicular traffic entering Mare Island will be rerouted to the Highway 37 Napa River Bridge during this closure.
The temporary closure of the Mare Island Causeway Bridge to pedestrians and bicyclists also remains in place through October 23, 2026, to allow crews to perform essential bridge deck maintenance.
The pedestrian and bicyclist closure will take place only on weekdays.
• Reopens each Friday at approximately 5:15 PM
• Closes again each Monday at approximately 7:00 AM
• Open every Saturday (except for Oct 17 as noted above) and Sunday