SR37 Corridor Projects
SR 37 is an important regional connection linking the north, east and west SF Bay Region following along the northern shore of San Pablo Bay. This 21-mile long roadway from US 101 to I-80 connects job markets and housing within Marin, Sonoma, Napa and Solano counties.
Segment A: US 101 (Novato) in Marin County to SR 121 (Sears Point) in Sonoma County: 4-Lane Expressway
Segment B: SR 121 (Sears Point) in Sonoma County to Mare Island (Vallejo) in Solano County: 2-Lane Highway
Segment C: Mare Island (Vallejo) to I-80 Interchange in Solano County: 4-Lane Freeway