Sonoma County Transportation Authority

Projects

Friday Video: Progress on the Marin-Sonoma Narrows Despite a Spring Storm

Though this week’s atmospheric river-fueled storm may delay its opening by a few days, the new alignment on southbound U.S. Highway 101 at the Marin-Sonoma Narrows will soon bring major traffic flow improvements and future flood relief to this bottleneck area. Check out a new video from MTC’s Mark Jones to see the project in action and hear experts from Caltrans and the Transportation Authority of Marin talk about the higher, dryer, wider highway.  Read More