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SR-29 Troutdale Creek Bridge Project


This Project Has Been Completed

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The Project

Caltrans will replace the Troutdale Creek Bridge (Bridge # 21-0004) on State Route 29 in Napa County.

What to Expect

The State Route 29 Troutdale Creek Bridge will remain open while Caltrans constructs a new Troutdale Creek Bridge at the same location. The new bridge replaces the existing bridge which must be replaced because of scouring at its base from the Troutdale Creek.

Intermittent Delays

During the bridge construction project, motorists may face intermittent delays as construction crews alternate traffic on and approaching the bridge. The bridge will be replaced in phases. One lane of traffic on northbound and southbound SR-29 will remain open at all times. However, traffic lanes may be reduced. Motorists should expect delays.

Project Schedule

The main construction work started in spring 2015 and will be completed as early as 2016. All work is weather permitting.

Project Updates

Stationary mounted signs and changeable message signs (CMS) will be strategically stationed to provide information regarding reduced traffic lanes, and other construction information.

Online Information

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