Santa rosa RD MP 3.8, 4.0, 10.0, 10.1, & 10.9 in santa barbara county. Emergency opening - reconstruct roadway (HMA, CL2 AB) and embankment by bench

The Federal Highway Administration (FHWA) awarded California Department of Transportation (Caltrans) a Project Grant of $2,062,490 under the Highway Planning and Construction program (CFDA 20.205) on June 18, 2025. The award funds emergency roadway reconstruction and embankment stabilization work on Santa Rosa Road at multiple milepost locations (3.8, 4.0, 10.0, 10.1, and 10.9) in Santa Barbara County, California.

The project deliverables include reconstruction of the roadway using hot mix asphalt (HMA) and Class 2 aggregate base (CL2 AB), embankment restoration using bench-and-fill methodology with geosynthetic reinforcement, replacement of an 18-foot culvert, and installation of an overside drain. Additional work includes excavation of benches for backfill, import and placement of borrow material per geotechnical specifications, shoulder backing installation, slope restoration via bench-and-fill methods, pavement restoration, and hydroseeding with jute mesh for erosion control. This emergency relief project addresses critical infrastructure damage and restores full roadway functionality and stability.

Project description

Santa rosa RD MP 3.8, 4.0, 10.0, 10.1, & 10.9 in santa barbara county. Emergency opening - reconstruct roadway (HMA, CL2 AB) and embankment by bench and fill with geosynthetic reinforcement. Replace 18' culvert and overside drain. Remove asphalt necessary to bench embankment. Excavate benches for backfill. Import borrow and place per geotech recommendations. Place A.B., HMA; shoulder backing, and hydroseed.restore slope by bench and fill method, restore roadway pavement and place jute mesh and hydroseed.