EA 10-1F140_Alpine County - State Route 88 Post Mile 4.11 Culvert Replacement (Streambed Alteration Agreement EPIMS Notification No. ALP-62968-R2)

The California Department of Fish and Wildlife has executed Streambed Alteration Agreement EPIMS Notification Number ALP-62968-R2 with the California Department of Transportation for a culvert replacement project located at State Route 88 Post Mile 4.11 in Alpine County. The scope of work involves replacing an existing 18-inch diameter, 65.9-foot-long corrugated metal pipe culvert with a 24-inch diameter, 65.9-foot-long reinforced concrete pipe featuring rubberized gasket joints. Additionally, the project includes replacing the existing metal flared end section at the outlet with a concrete version and the removal of riparian vegetation for construction access, specifically one mature willow shrub. The project is located at an unnamed tributary to Caples Lake and is governed by Section 1602 of the Fish and Game Code. It is categorized as exempt under California Code of Regulations Title 14, sections 15302 and 15304, as the work replaces existing structures within the same footprint. Amendment 1 to the agreement further modifies the work window and authorizes a temporary water diversion. Key personnel for the project include Jason B. Miller of Caltrans and Samantha Morford of the California Department of Fish and Wildlife.