PMC biologists assisted the City of Elk Grove with the Sheldon Road/SR-99 Interchange Improvement Project. This project involved the expansion and reconstruction of a preexisting, but obsolete, freeway interchange, as well as the realignment and widening of East and West Stockton Boulevards and Sheldon Road.
Biological resources present within the project area included habitat for special status vernal pool crustaceans, the federally threatened giant garter snake (Thamnophis gigas), and a blue elderberry (Sambucus mexicana) shrub that required transplantation. PMC biologists assisted the City in mitigating for impacts to these resources through the restoration and revegetation of temporarily disturbed habitat, pre- and post-construction biological surveys and mitigation monitoring. PMC biologists also prepared the wetland delineation for the project, prepared a biological assessment for, initiated formal consultation with, and obtained a biological opinion from the United States Fish and Wildlife Service regarding impacts to federally protected species and their habitat. Finally, PMC biologists applied for and were issued a Section 401 water quality certification from the Central Valley Regional Water Quality Control Board, a Section 404 dredge and fill permit from the United States Army Corps of Engineers, and a 1602 streambed alteration agreement from the California Department of Fish and Game.