SIE-49 Sierra Slip Outs (EA 03-2N750)

The California Department of Transportation, District 3 – Marysville/Sacramento, has forecasted a project on State Route 49 in Sierra County involving comprehensive roadway improvements including mobilization, tree removal, excavation, trench construction, slope regrading, and installation of rock slope protection. The work will also entail replacing guardrails, placing aggregate base, rebuilding and grading shoulders, applying hot mix asphalt, installing geogrid for soil stabilization, and completing final striping and traffic control measures with associated incidental tasks. The project aims to stabilize and enhance the safety and functionality of the corridor through targeted geotechnical and pavement improvements. All work is slated to occur within Sierra County and is being managed by Caltrans Environment Scientist Jason Ammerman, who serves as the primary point of contact. The project has been posted as a forecast on July 9, 2026, with no solicitation number assigned at this time, indicating it is in the pre-solicitation planning phase. The full details and environmental context of the project are available through Caltrans’ CEQA Net system via the provided link, and interested parties should monitor for future formal bids or contracts as the project progresses toward implementation.