Riva Woods Sewage Pump Station Upgrade

Johnston Construction Company

• Johnston Construction Company was selected by Anne Arundel County Department of Public Works to complete the Riva Woods Sewage Pump Station Upgrade, a rehabilitation project designed to improve the reliability, performance, and emergency operating capability of an existing sewage pump station.
• Johnston Construction Company’s work included demolition, excavation, utility coordination, installation of new pumping equipment, piping, valves, appurtenances, water service connection and piping, site restoration, paving restoration, painting, electrical improvements, controls, standby power, automatic transfer equipment, and associated testing and closeout documentation.
• The project included replacement of the existing vertical dry-pit sewage pumps with new sewage pumps, along with temporary bypass pumping capable of maintaining station operations while pump station equipment was removed, replaced, and returned to service.
• Johnston Construction Company coordinated the work in and around an active wastewater utility facility, including maintenance of traffic, protection of existing utilities and structures, erosion and sediment control, shutdown coordination, customer service requirements, safety/security requirements, as-built drawings, and final restoration.
• A major component of the project involved replacement of the existing pumping equipment. The specifications required removal of the existing vertical dry-pit sewage pumps and installation of new pumps designed around a 400 gpm capacity at 99 feet total dynamic head. The work also required coordination of bypass pumping, pump startup, testing, manufacturer services, and owner training so that the upgraded station could be placed into reliable operation.