Older cities around the world are experiencing the challenges of replacing aging infrastructure in historic neighborhoods, and the coastal city of Norfolk, Virginia is no exception. When the city sought to restore aging sewer and water infrastructure in the historic Huntersville neighborhood, they partnered with Clark Nexsen for civil engineering expertise.

With much of the sewer and water infrastructure dating back to the circa 1800s establishment of the neighborhood, this roughly $30 million project is being implemented in phases to minimize inconveniences and carefully work within the city’s budget and the neighborhood’s historic context. Our civil team is providing evaluation, design, and construction administration for the water and sewer replacement and rehabilitation, as well as the associated Pump Station 8 and two new pump stations.  The addition of the new pump stations created three sewersheds with sewer pipe slopes meeting current criteria. The new pump stations support the system with submersible-in-the-dry pumps with variable frequency drives. Overall, this project encompasses 60,000 linear feet each of water and sewer pipe, ranging in size from 6 – 30 inches diameter.