Central Oklahoma Master Conservancy District
The project included the design and replacement of an existing 34,000 linear feet (LF), 18-inch to 24-inch diameter raw water transmission pipeline. Approximately 19,000 LF of the transmission main was replaced with a parallel line constructed in the same easement. An additional 9,600 LF of the pipeline was located in the front and back yards of Oklahoma City residents and rehabilitated using trenchless methods to limit disturbance of the residents. The project included evaluation and comparison of viable trenchless rehabilitation methodologies and hydraulic and surge analysis of the existing and proposed transmission lines.
A full Environmental Assessment was required to document impacts to the environment, to Jurisdictional Waters of the U.S. and to existing archeological resources, since the new pipeline was in a current U.S. Bureau of Reclamation (USBR) easement. Plummer provided environmental services including environmental surveys, NEPA document assistance, waterway permitting, and Section 404 permit coordination.
During this project, we coordinated with the USBR, the Oklahoma Department of Transportation, the City of Del City, the U.S. Army Corps of Engineers, Tinker Air Force Base, and numerous private utilities.
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