Oldcastle Precast in Auburn, Wash., offered the City of Redmond, Wash the best solution for both challenges engineering and manufacturing a cost-effective product that also met the Washington General Use Level Designation requirements for flow rates and phosphorus removal. The city wanted to build a regional water filtration unit capable of managing a 9,000 gallons per minute flow rate
"Precast concrete provided for a quick installation freeing up an already congested site for finish work and allowing businesses to stay open," Dave Swanson, sales manager, said.
The vault, which is 14 feet wide by 214 feet long by 6 feet deep, took about 9 months to complete.

Read more about the precast stormwater vault.