In 2011, Schnabel started working on the new $280 million Cobbs Creek Reservoir project, located on 1,800 acres in Cumberland County, Virginia. In planning by owner Henrico County since 2002, the regional water supply project—with a 15 billion gallon raw water storage capacity within a 1,100-acre normal pool—is intended to meet customer needs for the next 50 years. Raw water will be diverted to the reservoir from the James River when river flows are adequate, and controlled releases from the reservoir will be made when the flows in the James River are inadequate to support regional demands.
We are providing full design services for the 160-foot-high, 4,000-foot-long primary embankment dam, a 30-foot-high saddle dam, and associated spillway, outlet works, and maintenance vehicle access bridges. Construction is scheduled to begin March 2017, with completion anticipated for 2020.
Our services also include geotechnical engineering to support the design of the river intake, pump station, and transfer pipeline; bid support; full-time construction phase engineering; and monitoring and inspections of the dam during the first filling of the reservoir.