Highway 101

The decades-long, multi-phase and multi-agency effort to widen U.S. 101 to three lanes in each direction between Novato and Petaluma reached a successful conclusion this week, with work crews opening...

The completion of the Highway 101 Marin-Sonoma Narrows widening is in sight with the groundbreaking Thursday of the final segment of the project between Novato and the Sonoma/Marin county line. In May...

The U.S. Highway 101 Deck Replacement project at San Francisco’s Alemany Circle will begin later this month instead of July, Caltrans announced Friday. COVID-19 shelter-in-place orders have lightened...

Sonoma County residents, and especially the residents of Petaluma, have reason to be happy tonight. Groundbreaking on the final 16-mile improvement to the Sonoma Narrows, after 20 years of waiting...

MTC and ABAG today released proposed draft amendments to the long-range regional transportation and land use plan known as Plan Bay Area 2040 and to the 2017 Transportation Improvement Program (TIP).