Public Works and Environmental Services Alert:
This project is for the renewal and rehabilitation of 6,500 linear feet of 30-inch to 54-inch critical large diameter sanitary sewer pipe and associated manhole structures located in the Mount Vernon and Springfield Districts of Fairfax County. The renewal method was selected as trenchless rehabilitation using the CIPP method. CIPP is commonly used in similar applications due to its cost-effectiveness, schedule benefits and limited impact to residents and environment.
According to the National Association of Sewer Service Companies (NASSCO), “Hundreds of millions of feet of CIPP are in service throughout the world today, and it is considered the most widely accepted pipeline rehabilitation technology worldwide.” The project will follow all applicable industry standards, including ASTM F126, Standard Practice for rehabilitation of Existing Pipeline and Conduits by the Inversion and Curing of a Resin-Impregnated Tube as well as safety standards set by the Occupational Safety and Health Administration (OSHA).
The project is in design phase.