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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.
Even if it's an emergency, our bridges have proven records of success for bridge replacements.

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

      SPAN RANGE PRODUCT DESCRIPTION
    DRAINAGE
    		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
    SEWER
    		12” – 36” A2™ Liner  PVC corrugated pipe with smooth interior wall
    30” – 120” DuroMaxx® Steel reinforced polyethylene pipe
    STRUCTURES
    		4’ – 20’+ TLP Steel and aluminum 2- flanged liner plate
    5’ – 23’+ ALSP
    MULTI-PLATE®     		Aluminum structural plate
    Galvanized steel structural plate
    8’-9” – 35’-5” ALBC Aluminum box culvert
    19’-5” – 65’ SUPER SPAN™
    SUPER-PLATE®
    BridgeCor®     		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
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