Client: San Antonio Water Systems (SAWS)
Location: San Antonio, TX

The project consists of a 142 miles of large-diameter treated water transmission main, three (3) pump stations and a water treatment facility. The transmission pipeline consisted of 54” and 60” diameter pipe capable of bringing in 50,000 acre-feet of water. The water will be delivered from the Carrizo and Simsboro Aquifers in Burleson and Milam Counties, located northeast of Austin. In addition, it will help protect spring flow habitat from the Edwards Aquifer, while allowing the City to further sustain a burgeoning population and an annual growth rate of 1.8 percent.
Aurora Technical Serviced supported CP&Y (Prime Design Engineer) was responsible for the development of program design standards, specifications and details, route studies, facility and pipeline design and incorporation of hydraulic and surge protection recommendations. CP&Y developed a steady state hydraulic model to assist in pump selection for the high service pump station and two (2) booster pump stations located along the transmission main. The facilities are sized for 52 MGD flow. Each pump station consists of three (3) horizontal split case centrifugal pumps and one standby pump.
Aurora Technical Services also served as the design engineer for the tunneling portions of the project. The tunnels cross numerous highways and county roadways, several railroads, high voltage transmission corridors and pipelines. There were also three major river crossings – Colorado, San Marcos, and Guadalupe. The project was executed by a Design Build delivery. A+ Services also provided constructability review and construction phased support services for related tunnel constructions.