Special Applications
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Rehabilitation

As infrastructure ages, it loses integrity. It is often possible to salvage failing structures and eliminate the time, cost, and safety problems of complete replacement. CONTECH offers a variety of products and systems to facilitate rehabilitation of storm and sanitary sewers and culverts. Restoring structural or hydraulic capacity without road closure is usually achieved with less time, expense, and disruption than the replacement alternative.

Product Highlights: Rehabilitation

Optimum Liner Size

Lining inadequate or failing structures with corrugated metal material or plastic pipe uses little of the available area, thereby preserving the maximum amount of the original opening. Due to the hydraulic efficiency of CONTECH products, often a smaller structure provides the same hydraulic capacity as the original. The following pipes provide low Manning “n” factors:

A-2000™
A2™ Liner Pipe
HEL-COR CL™
ULTRA FLO®

Variety of Shapes

Existing pipes and arches are generally lined with structures of the same shape, though slightly smaller in size. Rectangular openings can be lined with round, elliptical, or pipe-arch structures. Corrugated metal structures can fit almost any existing shape.

Rehabilitating Storm and Sanitary Sewers and Small Culverts

Drainage structures can be relined with hydraulically efficient corrugated steel, aluminum or PVC pipe. ULTRA FLO and HEL-COR CL are available in standard and special diameters through 120”. The PVC pipe systems, A-2000 and A2 Liner Pipe—used for both drainage structures and sanitary sewers—are available through 36” diameter.

More information (PDF) on Rehabilitating Aging Structures

 
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