Powhatan Interceptor
In the early 1970’s a new pipe line product was introduced in the market for gravity sewer conveyance. This pipe, known as “Flextran” pipe, was made of fiberglass with a thin coating of cement. It is very light weight and was marketed for installations in low lying, wet area (swamps) due to the ease of handling.
This pipe was installed in James City County in the mid 1970’s along Powhatan Creek and Chisel Run swamps. In recent years the JCSA has experienced problems with the Flextran pipe failing in isolated areas. Anticipating that the useful life of the pipe is expiring, the JCSA has scheduled these Flextran interceptors for replacement/rehabilitation over the next five years.
The initial project focuses on the 21-inch interceptor sewer that parallels Powhatan Creek between Jamestown Road and a terminus approximately 3000 feet north of Route 5 (total length is about 9,500 feet). This project will include slip-lining the existing 21-inch Flextran pipe with a 16-inch High Density Polyethylene (HDPE) or Polyvinyl Chloride (PVC) pipe. The reduction in pipe size is possible because of recent improvements upstream in conjunction with Hampton Roads Sanitation District (HRSD) to reroute a portion of the former service area flows.
Cost
- The estimated cost for this first of three major projects is $900,000
Project Schedule
- Design Completion – 12/2006
- Bidding and award – 2/2007
- Construction completion 11/2008
Project Team
- JCSA – Danny W. Poe, P.E. Project Manager (757) 253-6810
- URS – Consulting Engineers – Chris Garrett, P.E. Project Engineer (757) 499-4224
- Construction contract – Not awarded at this time
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