Waldo Road Over Dry Creek Bridge Replacement Project

The Waldo Road Over Dry Creek Bridge Replacement Project, managed by Yuba County, involves the demolition of the existing structurally deficient bridge (Bridge No. 16C0006) and the construction of a new concrete box girder bridge approximately 100 feet upstream. The project includes realigning the roadway to correct substandard curves and raising the vertical profile of the bridge to improve water conveyance during flood events. Located in Wheatland, California, the work encompasses a 5.55-acre area and requires strict adherence to environmental and cultural protections, including the implementation of a Riparian Restoration Plan and compliance with CARB Tier 4 emission standards for off-road equipment. The project is subject to extensive regulatory oversight and environmental mitigation, as detailed in a Partially Recirculated Draft Environmental Impact Report. Key requirements include the employment of UAIC-certified Tribal Monitors for all ground-disturbing activities and the oversight of a qualified biologist to protect species such as the Western Pond Turtle and Chinook salmon. Construction is restricted by ecological windows, specifically prohibiting avian breeding season activities from March 1 to August 31 and limiting water diversion in Dry Creek to the period between July 1 and October 31. The project also involves the demolition of a historic bridge listed on the National Register of Historic Places, which is managed through a Memorandum of Agreement and specific documentation standards.