The California Department of Transportation (Caltrans), in cooperation with the City of Santa Rosa and the Sonoma County Transportation Authority (SCTA), proposes to modify and reconstruct the US 101/Hearn Avenue interchange. The project would replace the existing Hearn Avenue overcrossing bridge with a new bridge to accommodate four traffic lanes with bicycle lanes and sidewalks on both sides of the roadway. The project would also increase the bridge height clearance and improve ramp connections to US 101 and provide continuous bicycle lanes and sidewalks between Corby Avenue and Santa Rosa Avenue.
The proposed project will reconstruct the two-lane Hearn Avenue overcrossing and modify the ramps using generally the same footprint. The consultant is currently completing the design phase.
Preliminary design and environmental studies
Environmental document approved and design option selected