The Town Creek Culvert Project addresses a variety of water quantity and quality issues associated with a failing stormwater conveyance system draining 308.6 acres. This conveyance system, composed of brick and concrete installed before the 1930s, only passed the two-year storm event without flooding significant businesses within Uptown Greenville, N.C. To bring this system up to a 25-year level of service (LOS), the City of Greenville invested over $32 million to construct approximately 306 linear feet (LF) of 84-inch reinforced concrete pipe (RCP) and 1,943 LF of 10’X8’ reinforced concrete box culvert (RCBC) in a highly urbanized core. In addition to upsizing the existing storm drainage system, this project also offers significant water quality benefits by installing several stormwater control measures (SCMs), including a wetland, the largest regenerative stormwater conveyance system in the state, permeable pavement, and a bioretention area. Cumulatively, these SCMs are expected to remove up to 250 pounds Nitrogen /year in a highly impervious watershed.

Contributor/Source

Marc Horstman, PE, PH, CFM;Lisa Kirby, PE, CFM;Dan Robinson, PE, CFM;David Stevick, PE, PLS

Claim CEUs

Lorem ipsum dolor sit amet consectetur adipiscing elit, mattis condimentum justo velit convallis taciti faucibus, egestas elementum vitae vestibulum cum fames