The $8.9 million Henrico County, VA, Four-mile Creek Trunk Sewer Rehabilitation Project Contract No. 1 involved sliplining 4,000 feet of 84-inch deteriorated concrete sanitary gravity sewer pipe with 72-inch fiberglass pipe.The project is in a growing suburban area east of Richmond, VA. It involved six horizontal curve sections and three crossings of a major interstate highway. Although there was enough room to slipline with a 78-inch liner pipe, the design engineer and owner decided to specify a 72-inch liner pipe due to the uncertainties of the condition of the pipe and the curved sections. This major interceptor sewer is very active and flows about half full most of the time - significantly more during wet weather.
展开▼
