Reline Done Right™

Reline Done Right™

As our infrastructure ages, the roadway, water management and sewer control systems are deteriorating and losing integrity. Maintaining these critical structures is a major challenge. Today, perhaps more than ever, keeping our infrastructure safe and workable with limited financial resources requires innovative solutions. Replacement can be costly and time consuming. Contech makes it easy. We make it our business to know the ideal solution for you - inside and out.

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Design Considerations for Rehabilitation versus Replacement

Rehabilitating or relining a drainage or sanitary pipeline or culverts requires a site-specific analysis. There is no one-size-fits-all approach. Every reline project needs to be examined closely by qualified professionals.

From an engineering perspective, the design approach must take into account the usual design parameters and must carefully evaluate the current condition of the pipe or structure and the supporting fill that surrounds it. The primary areas where an engineer should be concerned are:

  • Geometric shape and condition of existing pipeline or structure (and access structure)
  • Hydraulic requirements and limitations
  • Optimum shape, size and materials
  • Constructability
  • Design service life
  • Structural analysis and design
  • Specification goals

Efficient Rehabilitation Solutions

12” – 36” A2 Liner  PVC corrugated pipe with smooth interior wall
18” – 102” ULTRA FLO® Spiral rib aluminum, aluminized and polymer coated steel pipe
12” – 144” HEL-COR® & CORLIX® Corrugated aluminized and polymer coated steel and aluminum alloy helical pipe
30” – 120” DuroMaxx® Steel reinforced polyethylene pipe
12” – 36” A2 Liner  PVC corrugated pipe with smooth interior wall
30” – 120” DuroMaxx® Steel reinforced polyethylene pipe
4’ – 20’+ TLP Steel and aluminum 2- flanged liner plate
5’ – 23’+ ALSP
Aluminum structural plate
Galvanized steel structural plate
8’-9” – 35’-5” ALBC Aluminum box culvert
19’-5” – 65’ SUPER SPAN
Galvanized steel structural plate long spans
Aluminum structural plate long spans
Deep corrugation galvanized steel structural plate
12’ – 102’ CON/SPAN® and BEBO® Precast concrete arches

Rehabilitate failing structures and eliminate the time, cost and safety problems of complete replacement with our systems. Contech's portfolio includes a full array of reline products for culverts, sanitary and storm sewers.

Relining with Steel Reinforced Polyethylene

Designed with a smooth inner wall for outstanding hydraulic capacity, DuroMaxx® pipe provides the properties necessary for long-term service and performance in the most demanding environments.

CMP and PVC Pipe for Pipe Reline

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 because of the low Manning “n” factors of A-2000™ and A2™ Liner PVC pipes and HEL-COR® and ULTRA FLO® CMP. Existing culverts 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.

Pipe Reline Solutions for Storm, Sanitary Sewers and Small Culverts

Reline drainage structures with hydraulically efficient CORLIX® or A2™ Liner pipe. DuroMaxx® SRPE, ULTRA FLO® and HEL-COR® are available in standard diameters through 120” (custom up to 144" for HEL-COR®).  Special diameters are also available in both products. The PVC pipe systems, A-2000™ and A2™ Liner Pipe — used for both drainage structures and sanitary sewers—are available through 36” diameter.