Update: Phase 1 of the Culvert Improvement Project Complete, on State Route 29,Rutherford, Napa County

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District 4 Caltrans Logo and Building California Logo

Both lanes are now open between Rutherford Road and Oakville Cross Road in Rutherford, Napa County


Thumbnail image for the State Route 29 Culvert Improvement Project, in Napa County.

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Napa County – Caltrans is excited to announce the early completion of Phase 1 of the Culvert Improvement Replacement Project between Rutherford Road and Oakville Cross Road in Rutherford, Napa County. Both lanes are now open to two-way traffic. The temporary signals have been removed and speed reduction/radar feedback (35 MPH) and bicycles share the road signage has been installed.

Phase 2 begins on March 25, 2026, and is scheduled to be completed in June. During this time, two traffic lanes will be available for motorists' use. Construction activities will continue Monday through Friday, 7:00 AM to 3:00 PM until project completion.

All work is weather dependent.

Daytime Work Monday through Friday:
·7:00 AM to 3:00 PM

We appreciate your continued patience as we work towards project completion. For more information visit the project webpage.

For 24/7 traffic updates, please visit 511.org: https://x.com/511SFBay
For real-time information, visit Caltrans QuickMap: https://quickmap.dot.ca.gov
Follow us on X: https://x.com/CaltransD4
Or call 1-800-472-7623, 1-800-427-ROAD for state highway conditions statewide.