I-40 Bridge Scour Project

The California Department of Transportation Caltrans District 8 is implementing the I-40 Bridge Scour Project to address structural deficiencies and upgrade infrastructure along Interstate 40 from Post Mile R139.0 to R152.2 in Needles, San Bernardino County. The primary scope of work involves replacing existing rock slope protection and partially grouted rock slope protection apron areas at Whale Mountain Wash, specifically affecting bridge numbers 54-0668L and 54-0668R. This includes the installation of eight aprons along the roadway shoulder at each bridge approach and departure. Additional improvements consist of upgrading guardrail end treatments to current standards, installing vegetation control, and implementing higher reflectivity sign panels and updated lighting. All project activities are located within the state right of way. The project is governed by an Initial Study with a Mitigated Negative Declaration, which includes specific mitigation measures for biological resources and water impacts to ensure environmental effects remain less than significant. The California Department of Fish and Wildlife is identified as a responsible agency. This forecast project, categorized under NAICS code 237310, has undergone public review and recirculation as of August 2026 to ensure compliance with environmental standards and public transparency.