DPPIA Retrofit HM-233 (03-4G360)

The DPPIA Retrofit HM-233 project, solicitation number 03-4G360, is a forecast initiative managed by Caltrans District 3 in Marysville and Sacramento. The primary objective of the project is to restore the functionality of existing Temporary Best Management Practices by replacing diminished pollution prevention infiltration areas in kind to ensure continued effectiveness. These restoration efforts will take place at various locations across Butte County on State Route 32, Colusa County on State Route 20, and Sacramento County on State Route 50. The project is classified as a Categorical Exemption under the Existing Facilities Section 15301, as detailed in the Notice of Exemption signed on September 30, 2026. Administrative oversight is provided by Marta Martinez-Topete, an Environmental Scientist serving as the primary point of contact. The project is centered in Sacramento, California, and is designed to maintain critical pollution prevention infrastructure across the designated state routes.