Wohler Road Bridge Over the Russian River Seismic Retrofit Project

The Wohler Road Bridge Over Russian River Seismic Retrofit project is an environmental authorization under Lake or Streambed Alteration Agreement No. EPIMS-SON-35832-R3, Amendment 2. Located at 9703 Wohler Road in Healdsburg, California, the project involves work at the Russian River and an unnamed tributary within an unincorporated area of Sonoma County. The Sonoma County Permit and Resource Management Department serves as the project applicant, with the California Department of Fish and Wildlife acting as the responsible agency. Pursuant to Fish and Game Code section 1602, the project was approved on September 12, 2025, with a determination that it will not have a significant environmental effect within the jurisdiction of the California Department of Fish and Wildlife. Key operational requirements include strict adherence to established mitigation measures as a condition of approval. The amended agreement specifically allows for the performance of night work, provided that written authorization is obtained from the California Department of Fish and Wildlife. Primary points of contact for the project include Jackson Ford of the Sonoma County Lead Agency and James Hansen, an Environmental Scientist with the California Department of Fish and Wildlife. The project is classified under NAICS code 237310 for highway, street, bridge, and tunnel construction.