caltrans yellow creek (1)

Posted on October 31, 2025

Map showing two Caltrans bridge projects on State Route 121 in Sonoma County: Yellow Creek Bridge (Project Location 1) south of Big Bend and Arroyo Seco Bridge (Project Location 2) near 8th Street East in Schellville. The graphic announces one-way traffic control on Highway 121 from November 3, 2025, to February 28, 2026, for bridge railing replacement at Yellow Creek Bridge.

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