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Traffic Advisory: Eastbound & Westbound Tiburon Blvd. Marin County Utility Potholing Project Starts Monday, June 2, 8:00 PM-6:00 AM

Posted on June 2, 2025


TRAFFIC

Caltrans is scheduled to begin utility potholing on both directions of Tiburon Blvd. from U.S. 101 exit to Main street (approximately four miles).

Workers will perform potholing on SR-131 to safely locate underground utilities (water, electrical, gas, telecommunications, and fiber optic lines) in preparation for the upcoming paving project of SR-131 scheduled in 2026.

Eastbound and westbound lanes of SR-131 will be subject to one-way traffic control.

Only one lane will be open at a time, with traffic alternating directions through the work zone.

All work depends on weather. Normal project work hours are 8:00 PM to 6:00 AM Monday through Friday. Work will be completed tentatively by July 2025.

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