Road construction on Silverado Trail from May to July


Public WorksRoads


Hamid Heidary
Associate Civil Engineer
(707) 259-8370
County Executive Office
1195 Third Street

Napa, CA 94559

Road construction on Silverado Trail from May to July

Project runs from City of St. Helena to Zinfandel Lane

NAPA – Napa County roads crews and contractor Argonaut Constructors will be repaving two-miles of Silverado Trail from the St. Helena city limits to the intersection of Zinfandel Lane. Construction is scheduled from 6 a.m. to 3 p.m., Monday through Friday, through July 28.

Construction will be in two phases – from May 22 to May 26 and again from June 6 to July 28 to accommodate heavier traffic during Memorial Day weekend and Auction Napa Valley.

A two-inch layer of asphalt will be applied over the existing roadway to restore the road to a “like new” condition.

The road will be open to travel at all times during construction. However, there will be periods of time where traffic is limited to one-way travel with a flagperson at either end of the roadway, resulting in delays. The school district’s transportation office has been notified of the project so students can still safely get to and from home.

Despite everyone’s best efforts, there will be impacts and the best way to avoid being inconvenienced by this project is to avoid the area. Motorists should seek alternate routes during construction or allow for more travel time between destinations.

For more information, please call the project hotline number at 253-4351 or email

The Board of Supervisors and staff of Napa County are dedicated to preserving and sustaining Napa County for present and future generations as a community with generous open space, a thriving agricultural industry and a quality human and natural environment.


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