Crabtree Creek Interceptors

City of Raleigh

Raleigh, NC

Kimley-Horn was responsible for relocating the City’s existing 60-inch Crabtree Creek interceptor away from the proposed NCDOT alignment and construction of the US 64 Bypass, and installing a new parallel 60-inch interceptor for additional capacity. The design and construction included approximately 18,500 linear feet of 66-inch and 60-inch interceptor, one 1,000-foot-long 60-inch aerial creek crossing, two inverted siphons designed to carry over 100 MGD, six 96-inch conventional tunneled road crossings, and numerous junction boxes to connect the existing interceptor system with the new interceptor system. The system was designed to facilitate future inspection and maintenance of the City’s interceptor system. This project also included the emergency design of an adjacent 66-inch aerial creek crossing.