July Rehab News: Instituform wins $6.5M Contracts, CertainTeed replaces failing sewer

July 2010 Vol. 65 No. 7

City reports indicate the use of various trenchless technologies, including pipeline relining and repair, have resulted in cost savings of $81 million over the last five years. “The city currently uses trenchless technologies for sewer relining and watermain relining. The benefits are many — cost savings, because the road doesn’t need to be excavated; minimized disruption (one day as opposed to four months); and the environmental benefits of not requiring new materials,” said City of London, Division Manager — Construction Administration, Justin Lawrence.

CertainTeed Certa-Lok replaces aging clay sewer main in Illinois
The Village of Baldwin, IL, recently made the decision to replace a failing 40-year-old clay tile sewer main with a new 10-inch gravity sewer, featuring 600 feet of CertainTeed Certa-Lok C-900/RJ restrained-joint PVC pipe.

Since the new sewer main had to be installed in a high-traffic area, parallel to a main village street and under a state highway and a set of railroad tracks, Rhutasel and Associates Inc., of Freeburg, IL, the village’s consulting engineers, chose directional drilling as the method of installing pipe for the new sewer. In order to minimize disturbance to the public and keep costs down, directional drilling was the only realistic option. The engineers specified Certa-Lok C900/RJ pipe for its strong performance in directional drilling applications.

“We specified the Certa-Lok C-900/RJ restrained-joint PVC pipe mainly for its rigidity and ability to withstand stretching that may occur from the pulling force of the directional drilling rig,” says Travis J. Liefer, staff engineer for Rhutasel and Associates. “We needed a product that would be able to resist any minor deflections that may be in the actual bore itself. The Certa-Lok pipe met those needs.”

Certa-Lok C900/RJ is a performance-proven PVC product, ideal for both water and wastewater applications. Its innovative joining system, which utilizes a high-strength spline to connect pipe lengths, reliably holds the pipe together during installation and pressurization, while elastomeric O-rings provide a dependable pressure seal.