California Department of Transportation

03/12/2026 | Press release | Distributed by Public on 03/12/2026 18:03

Full Lane Closures Continue on State Route 29 Between Rutherford Road, and Oakville Cross Road, in Napa, Napa County.

Full Lane Closures Continue on State Route 29 Between Rutherford Road, and Oakville Cross Road, in Napa, Napa County.

Published: Mar 12, 2026

Every day from February 25th to Friday, March 28th
One-way Traffic Control is in place

Napa County - Caltrans continues to implement overnight full lane closures and continuous one-way reversing traffic control on SR 29 between Rutherford Road and Oakville Cross Road in Napa, Napa County. These closures are designed to help construction crews to expedite Phase 1 of the Culvert Project as they replace culverts and stabilize the roadway, with one-way reversing traffic control in place during the process. During Stage 1 of construction, crews will remove the Northbound roadway portion of the existing culvert and replace it with a cast in place concrete box culvert while traffic is shifted into a single lane for use by both directions of travel. Stage 1 is scheduled to be completed by March 28, 2026.

All work is weather dependent. When Stage 2 is underway, two traffic lanes will be available for motorists' use.

Daytime: SR-29 One-way Traffic Control between Oakville Cross Road and Rutherford Road

  • Daily one-way reverse traffic control until March 28th

Overnight: SR-29 Full Lane Closures between Oakville Cross Road and Rutherford Road.

  • Between 10:00 PM to 6:00 AM for traffic shifts.

Flaggers will be present and Changeable Message Signs (CMS) signs will be posted to help the traveling public. Motorists are advised to expect delays and to leave a safe traveling distance between your vehicle and the vehicle ahead of you, and please #BeWorkZoneAlert.

Detours signs will be posted.

Detour Routes:

Detour SR-29 Northbound toward St. Helena/Calistoga

  • Turn right onto Oakville Cross Road.
  • Turn Left onto Silverado Trail Road
  • Turn Left onto SR-128 to Rutherford to get onto SR-29

Detour SR-29 Southbound toward the city of Napa

  • Turn left onto SR-128 in Rutherford
  • Turn right onto Silverado Road
  • Turn right onto Oakville Cross Road to get onto SR-29.

For 24/7 traffic updates, follow 511.org: https://twitter.com/511SFBAY Real-time traffic, click-on Caltrans Quick Map: http://quickmap.dot.ca.gov/

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California Department of Transportation published this content on March 12, 2026, and is solely responsible for the information contained herein. Distributed via Public Technologies (PUBT), unedited and unaltered, on March 13, 2026 at 00:03 UTC. If you believe the information included in the content is inaccurate or outdated and requires editing or removal, please contact us at [email protected]