The California Department of Transportation (Permittee) will complete the following activities: 1) replacement of existing metal beam guardrails (MBGR) with Midwest guardrail systems (MGS); 2) installation of a new 48-inch alternative pipe-liner (APL) within an existing culvert; 3) pavement rehabilitation from PM 20.57 to PM 22.7 and shoulder embankment from 20.57 22.7 or backing adjacent to the pavement edge; 4) culvert work at five drainage systems including the location in activity 2; and, 5) installation of a bio-retention strip.
The Project has a 397.97-acre Biological Study Area (BSA) that encompasses State Route 12 and all of the Caltrans Right-of-Way (ROW), collectively, the Project Area. The Project is expected to cause the temporary loss of 2.40 acres of habitat for the Covered Species. Impacts of the authorized taking also include adverse impacts to the Covered Species related to temporal losses, increased habitat fragmentation and edge effects, and the Project’s incremental contribution to cumulative impacts (indirect impacts). These impacts include stress resulting from habitat degradation and from capture and relocation; temporary and permanent habitat loss; and long-term effects due to increased pollution, increased competition Project activities and their resulting impacts are expected to result in the incidental take of individuals of the Covered Species. The activities that are expected to result in incidental take of individuals of the Covered Species include initial site setup, equipment and material delivery, clearing and grubbing, site preparation, exclusionary fencing installations, environmentally sensitive area fencing installations, pavement and concrete removal, concrete pump truck activities, soil excavation, soil compaction, grading work, pavement installation, heavy equipment operation, trenching, construction vehicle traffic, general vehicle traffic and personnel on foot. The project is expected to result in incidental take of California tiger salamander as defined by Fish and Game Code in the form of adverse impacts from destruction of burrows and dens that the Covered Species inhabit; being crushed under moving vehicles and equipment; and desiccation or predation along fence lines and other barriers to movement. Incidental take of individuals of the Covered Species may also occur from the Covered Activities in the form of pursue, catch, capture, or attempt to do so of the Covered Species, California tiger salamander, designated as a threatened species under CESA. The ITP referenced above as issued by CDFW authorizes incidental take of species listed under CESA that may occur as a result of Project implementation.