Calaveras Curve Warning Signs Installation

The California Department of Transportation, District 10 in Stockton, is implementing the Calaveras Curve Warning Signs Installation project to improve motorist safety and reduce vehicle accidents along State Route 26 in Calaveras County. The project involves installing curve warning signs at three specific locations: Post Mile 19.26-19.38, Post Mile 20.33-20.61, and Post Mile 27.68-28.38. All work will be performed within the Caltrans Right of Way in the city of Mokelumne Hill. The project is classified as categorically exempt under CEQA Section 15301 and is a categorical exclusion under NEPA, as it is determined to have no significant environmental impact on sensitive species, habitats, or cultural resources. Key technical and regulatory requirements include adherence to Caltrans Standard Special Provision 7-1.02K(6)(j)(iii) regarding earth material containing lead. This requires a Lead Compliance Plan prepared by a Certified Industrial Hygienist and mandates that all soil remain on-site. Additionally, the contract specifies strict protocols for the discovery of human remains in accordance with State Health and Safety Code Section 7050.5 and Public Resources Code Section 5097.98, requiring the immediate cessation of work and notification of the county coroner. Environmental reevaluation will be triggered if the project scope changes or if previously unknown sensitive resources are discovered. Project oversight involves Maria Garcia Lopez as the Environmental Scientist, Chiu Liu as the Project Manager, and Elizabeth Hummel as the Senior Environmental Planner.