SON-1 Gabion Basket Repair DDO (EA 4X050)

Caltrans, District 4 - Bay Area/Oakland, is proposing a repair to a damaged section of a gabion basket retaining wall on southbound Highway 1 at post mile 22.45 in Sonoma County, California, following a vehicle off-road incident that compromised approximately 18 feet of the top row and 12 feet of the second row of the wall. The work involves completely removing the damaged baskets, carefully setting aside the internal rock for reuse, and installing new gabion baskets of identical size and configuration. Excavation beneath the roadway will be necessary to properly embed the new baskets and ensure structural integrity. Above the installed baskets, geogrid will be placed and extended beneath the roadway to reinforce the slope and provide long-term stability. Native vegetation matching the existing conditions will be reintroduced on top of the geogrid to restore the natural appearance and ecological balance of the site. This project is classified as a Categorical Exemption under CEQA Class 1 (14 CCR 15301) for maintenance of existing facilities, and no formal environmental impact report was required. The contract is identified as SON-1 Gabion Basket Repair DDO (EA 4X050), with a posted date of January 14, 2026, and an estimated signing date of January 13, 2026. The project falls under NAICS code 237310 for highway, street, and bridge construction. The place of performance is located on Highway 1 in an unincorporated area of Sonoma County near Jenner. The lead contact for environmental compliance is Juliane Smith, Senior Environmental Scientist, reachable at the Caltrans District 4 office in Oakland. No contract value, pricing details, payment terms, invoicing instructions, accounting codes, or standard federal acquisition regulation clauses were specified in the documentation. There are no identified evaluation factors for award, source selection methodology, special contract requirements beyond the technical scope, packaging or marking standards, or submission deadlines and formats. The work is treated as a routine maintenance activity without procurement-level special conditions such as key personnel requirements, contract options, security clearances, or socioeconomic set-asides. The project’s execution is governed by standard Caltrans maintenance practices and environmental compliance protocols under CEQA.