City of Norfolk, Department of Utilities
- Norfolk, Virginia
- Our Role
- Planning, Design, Construction-Related Services.
- New Construction
- 4 years
- Realigned sanitary system meets the needs of a growing population.
Since the 1980s, the city of Norfolk, in conjunction with the Norfolk Redevelopment and Housing Authority, has invested heavily in the revitalization of the Freemason Harbor area of downtown Norfolk. New townhouses, condominiums, businesses, and recreational space now complement the area’s historic buildings. The area also now connects to the Tide Light Rail linking Freemason Harbor to Norfolk State University, Tidewater Community College, and the Eastern Virginia Medical Center.
Critical water/wastewater improvements were needed to keep the area’s infrastructure on pace with the rate of development.
In response to this need, Gannett Fleming provided planning, design, and construction-related services for a realigned sanitary sewer system, a new pumping station and force main, and selected water distribution system improvements. The team completed a master plan study of the service area, including preparing a desktop analysis of average flows, recording existing flows by metering gravity flow in manholes, and projecting new flows according to planned development.
Upon acceptance of the project engineering report, the team designed and prepared construction documents for a new 1.0 mgd sewage pumping station, 3,200 feet of new force main with a connection to the Hampton Roads Sanitation District’s interceptor force main, 3,200 feet of new collection sewers, and 3,200 feet of water distribution system improvements. Additional services provided during construction of the station included periodic construction oversight, submittal review, and technical consultation.
- Communication with multiple city operating departments, Norfolk Architectural Design Review Committee, and Hampton Roads Transit (HRT)
- Construction was coordinated with multiple other construction contracts, including private high-rise apartment, parking garage, rehabilitation of historic YMCA, and HRT light rail station
- New pumping station is a traditional wet well/dry well construction, using dry pit submersible pumps
- Above-grade architecturally enhanced masonry building houses VFD motor controls, emergency diesel powered stand-by pumps, and a carbon odor control system
- New force main connects with Hampton Roads Sanitation District infrastructure.
- Canister filter storm water treatment system.