Spotlight on Arcadia Intake & Pump Station

The city of Edmond, Oklahoma was seeking to expand its water supply to meet the growing needs of community residents and businesses.

Funded by the City of Edmond and the US Army Corps of Engineers, Arcadia Lake is a multipurpose reservoir facility that currently allows the city’s water treatment plant to transmit 12 million gallons per day (mgd) through the facility’s low-level outlet works. This is quickly becoming insufficient as the city grows, so Edmond decided to construct a new raw water intake and pump station to meet future demands.

The upgrades will provide an initial capacity of 30 mgd, with the ability to readily expand up to 65 mgd. As a subconsultant to Carollo Engineers, Schnabel is providing planning and design services along with permitting assistance to the city for this work.

The final design consists of a new multilevel intake and pump station along the bank of Arcadia Lake. The intake is composed of three stainless-steel tee screens at various elevations that direct water through individual microtunnels to the intake’s 50-ft-diameter by 80-ft-deep wet well shaft. The pump station deck above the wet well shaft supports five pumps, a screen airbust system, chemical feed system, and appurtenant equipment. Twin 42-inch-diameter raw water pipelines exit the pump station below grade and proceed approximately 6,000 feet to the water treatment plant.

As part of the work, Schnabel also completed the site civil design and incorporated a backup generator to provide 100% standby power for this critical infrastructure.

Illustration provided by BBN Architects Inc.