State Route 239 Corridor Study

Desktop Project Menu View State Route 239 Corridor Study The State Route 239 (SR239) Corridor Study is a legislatively approved, but unconstructed route in the California state highway system. The purpose of this study is to determine the ultimate concept and alignment for the route in the context of the regional transportation network that includes

Interstate 680 HOV Completion and Express Lanes

Interstate 680 HOV Completion and Express Lanes The I-680 HOV Completion and Express Lanes project will construct a high occupancy vehicle (HOV) lane on southbound I-680 between North Main Street in Walnut Creek and Rudgear Road in Alamo and convert the HOV lane to an express lane on southbound I-680 from just south of Marina