Henrico Water Treatment Plant

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Project Owner
Contract Value
Project Location
Henrico, VA
Project Duration

Project Description

The Henrico Water Treatment Plant is a 228,000 square feet new building which we constructed near Richmond, VA. The project was our largest undertaking to date, with a final cost of $93.4 million. The building housed offices, laboratories, mechanical and electrical rooms, public spaces and all the processes associated with a water treatment facility.

The plant is situated on a 52-acre site, and treats water pumped from a pumping station (also part of the project) located on the bank of the James River. Water entering the plant is treated with ozone to reduce objectionable tastes and odors and a chemical coagulant that causes suspended particles to clump together and settle to the bottom of large open air tanks (basins) on the east side of the plant. The water is then disinfected further and sent through gravity filters comprised of granulated activated charcoal, sand, and an underdrain system. The water is stored in two large reinforced concrete tanks (clearwells) under the building. These tanks are capable of storing 8.2 million gallons of water. The water is pumped by six 800-horsepower vertical turbine pumps, each of which has the capacity to pump 11.4 million gallons of water per day.