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

The project consisted of 142 miles of large-diameter treated water transmission main, three pump stations, and a water treatment facility. The transmission pipeline consisted of 54” and 60” diameter pipes capable of delivering 50,000 acre-feet of water. The water was sourced from the Carrizo and Simsboro Aquifers in Burleson and Milam Counties, located northeast of Austin. Additionally, it helped protect spring flow habitat from the Edwards Aquifer, while allowing the city to sustain its burgeoning population and an annual growth rate of 1.8 percent.

Aurora supported STV with the development of program design standards, specifications, and details, route studies, facility and pipeline design, and incorporation of hydraulic and surge protection recommendations. Aurora also served as the design engineer for the tunneling portions of the project, which crossed numerous highways and county roadways, several railroads, high-voltage transmission corridors, and pipelines. There were also three major river crossings – the Colorado, San Marcos, and Guadalupe Rivers. The project was executed by a Design-Build delivery method. Additionally, Aurora provided constructability reviews and construction phase support services for related tunnel constructions.