North Bay Coastal Mitigation Establishment Project

The California Department of Transportation (Caltrans) District 4 is seeking to acquire Pre-Transfer Mitigation Credits to address anticipated environmental impacts related to Wetlands, Other Waters of the U.S. and State, as well as endangered species including the California red-legged frog and the Myrtle silverspot butterfly. These credits will specifically be utilized within the Gualala Salmon HUC-8 Sub-Basin, which represents the necessary service area to effectively mitigate impacts caused by Caltrans projects. The credits must be secured and available by November 1st, 2029, ensuring compliance with multiple regulatory frameworks such as the California Coastal Act, Clean Water Act, Endangered Species Acts (both federal and state), the Lake and Streambed Alteration Program, and the Porter-Cologne Water Quality Control Act. This solicitation, titled "North Bay Coastal Mitigation Establishment Project" and posted on April 3, 2026, invites responses by June 2, 2026, from qualified entities to meet these environmental mitigation requirements. The contract is issued under the authority of Caltrans and is focused solely within California, with a designated primary contact, Taylor Kim. The procurement aims to proactively address unavoidable ecological impacts arising from transportation projects while maintaining compliance with a complex suite of environmental laws designed to protect sensitive habitats and species within the designated sub-basin.