California Department of Transportation

State Route 128 Corridor Valley Trail Feasibility Study

Thanks to the participation and cooperation of the public, business owners, community organizations, stakeholder groups and local agencies the State Route 128 Corridor Valley Trail Feasibility Study final report is complete and available for review.

The feasibility study analyzes the proposed trail corridor that extends from the Sonoma/Mendocino County line near Cloverdale to the State Route 128/1 junction in Mendocino County, a distance of approximately 51 miles. The study identifies desired improvements to the SR 128 corridor, including additional sidewalks, bike lanes, entryway and traffic calming features, separate multi-use paths and treatments that improve safe routes to school. Specific community priority areas include improving non-motorized access to Hendy Woods State Park and Navarro River Redwoods State Park, as well as improving walking and biking conditions in the communities of Yorkville, Boonville, Philo, and Navarro.

The feasibility study was initiated through the Valley Trail Coalition and is funded through a Caltrans Community-Based Transportation Planning Grant and the Mendocino Council of Governments. For more information visit or or contact Jaime Hostler at or (707) 441-4554.