Single lane closure on SR 221 at SR 29/Soscol Junction

Caltrans has scheduled an extended single lane closure on Southbound State Route 221 (SR-221) between Napa Valley Corporate Way and the offramp to Northbound State Route 29 (SR-29) beginning Friday July 26, 2024, which will remain in place until Friday August 9.

Crews will work on reconstructing the roadway for the new alignment of Southbound SR-221 roadway as part of ongoing construction of the Soscol Junction Roundabout project. To ensure the safety of workers and motorists, a single lane reduction will be in place on Southbound SR-221.

Crews will begin work at 9 p.m. Friday, July 26, 2024, reducing Southbound 221 to a single traffic lane, shifting Southbound 221 traffic to two new roundabouts and deactivating the signalized intersection at SR-29 and Southbound 221.

Motorists should be aware this work will shift traffic to the two partially completed roundabouts for routing traffic between Southbound SR-221, Soscol Ferry Road and SR-29. The detour of Northbound Soscol Ferry Road to Northbound SR-221 will remain active.

All work is weather dependent. Motorists are advised to allow extra time to become acclimated to this detour and expect delays.

Learn more about the Soscol Junction project here.