Avg. daily car traffic
Avg. daily truck traffic
Project Length in Miles
The Narrows on US Highway 101 (US101) links the San Francisco Bay Area and Oregon and is the only continuous north-south route through Marin and Sonoma counties. Issues with the route include an insufficient number of lanes through the Narrows, sections that do not meet current freeway standards and a consistent poor level of service (e.g., delays, slow traffic, traffic jams) in many sections. This project is included in the 2010 Regional Transportation Plan and the 2002 Key Transportation Corridors in the Bay Area Region.
In addition to the carpool lanes, new interchanges and frontage roads are being built to remove unsafe access from private properties and local roads. The project also includes continuous Class I and Class II bikeways between Novato and Petaluma.
|For more details, visit the Caltrans website|