The Delaware Department of Transportation’s (DelDOT) US Route 301 project impacted utilities in several locations across New Castle County, Delaware. One location, located at the eastern end of the proposed highway, required the Client to re-locate approximately 1.6 miles of parallel 10-inch and 16-inch diameter natural gas transmission pipelines.
GTA provided wetland delineation and permitting services for this project. GTA coordinated with the United States Army Corps of Engineers (USACE), Delaware Department of Natural Resources and Environmental Control (DNREC) Wetlands and Subaqueous Lands Section and the Natural Heritage and Endangered Species Program. GTA pursued and obtained USACE authorization to use Nationwide Permit 12-Utility Line Activities and obtained State Subaqueous Lands authorization for the project. GTA also coordinated with the DNREC and the United States Fish and Wildlife Service to provide construction monitoring surveys for the Federally threatened Bog Turtle (Glyptemys muhlenbergii). Additionally, GTA coordinated with the Delaware State Historic Preservation Office (SHPO) for the issuance of a Cultural Resource Survey Concurrence letter. GTA managed Bog Turtle Surveys and Cultural Resource Services through subconsultants on behalf of our Client.