Tassajara Road Closure - Culvert Replacement An extended road closure was necessary to replace a failing culvert which runs under Tassajara Road. The aging nine-foot diameter culvert was replaced with an 18-foot diameter culvert, that is over 400 feet long. The increased size allows a more stable flow of water, stopped the deterioration underneath the roadway, and lessens the possibility of emergency road closures in the future. The widening of the road provides greater safety for motorists traveling along that section of Tassajara Road linking Contra Costa and Alameda Counties.
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For questions regarding all roadwork projects, please call Dublin Public Works at (925) 833-6630.