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Road Warrior: Petaluma highway work begins this week

  • Traffic speeds over the Petaluma Boulevard South Interchange bridge on Monday, April 1, 2013. The bridge will under go renovations with the northbound State Route 116 bridge being replaced and the southbound bridge widened. (Conner Jay/The Press Democrat)

Here's the latest information about road construction projects and lane closures throughout Sonoma County during the week of April 8-12, with Highway 101 closures in Petaluma, Santa Rosa's "extra attention" intersection and a roundup of CalTrans projects throughout the North Coast.

Petaluma

The biggest news this week is the start of a new phase of Highway 101 construction on the Sonoma-Marin Narrows project, which brings evening lane closures between Washington Street and Petaluma Boulevard South as the highway is widened from four to six lanes. This phase of the decade-long 101 widening project will take three years, will cost $120 million and at times will involve narrowing traffic to one lane in each direction.

This phase involves reconstructing the Petaluma Boulevard South interchange; replacing the Petaluma River Bridge; constructing or widening nearly three miles of frontage roads; providing new pedestrian and bicycle enhancements; replacing the northbound State Route 116 Bridge and widening the southbound SR-116 Bridge to accommodate future carpool lanes on U.S. 101.

Read more about the project in this story, <A HREF="http://www.petaluma360.com/article/20130402/COMMUNITY/130409932/1362">Petaluma Highway 101 bottleneck to get worse before getting better</A>.


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