McKim & Creed furnished design-build services for a water intake facility, pump station and pipeline to transport water from the Ohio River via a freshwater pipeline for approximately four miles in western Pennsylvania. The line connects to a central impoundment facility that was previously constructed by the client. The project included approximately 21,120 LF of 16-inch ductile iron pipe, two intake pumps, a submersible pump, a variable frequency drive (VFD), a 20,000-gallon above-ground storage tank with level control, and two booster pumps. McKim & Creed assisted the client in developing the project, supported permitting efforts with the client’s subconsultant, engineered the system, procured construction materials and subcontractors, and constructed the project.
Originally, HDPE was the proposed construction material; but due to the impact of hurricanes on the resin industry, our team quickly redesigned the system to use ductile iron pipe. To transition into the construction phase, we completed a hydraulic study and major equipment list. The project was based on a preferred alignment of approximately four miles and included submersible pumps at the river intake location to pump 2,320 LF to a booster pump station. This booster pump station was needed to transport water to the Fritsch Impoundment. A pipeline transient analysis was also performed to incorporate controls and appurtenances that would further protect the pipeline from failure due to pressure transients in the line. Through the analysis, we were able to identify events with the potential to cause damage to the system.