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Salvage failing structures and eliminate the time, cost and safety problems of complete replacement with our systems. Contech's portfolio includes a full array of rehab/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 structure 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

Variety of Products for More Efficient Rehabilitation

  SPAN RANGE PRODUCT DESCRIPTION
DRAINAGE
12” – 36” A2 Liner Pipe PVC corrugated pipe with smooth interior wall
18” – 102” ULTRA FLO® Spiral rib aluminum, aluminized and polymer coated steel pipe
12” – 144” Corrugated Metal Pipe Corrugated aluminized and polymer coated steel and aluminum alloy helical pipe
30” – 120” DuroMaxx® Steel reinforced polyethylene pipe
SEWER
12” – 36” A2 Liner Pipe PVC corrugated pipe with smooth interior wall
30” – 120” DuroMaxx® Steel reinforced polyethylene pipe
30” – 120” + SPR PE Spiral-wound steel reinforced PE pipe
STRUCTURES
4’ – 20’+ Tunnel Liner Plate 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
You are using an unlicensed and unsupported version of Evoq Content. Please contact your Systems Administrator for information on how to obtain a valid license.
You are using an unlicensed and unsupported version of Evoq Content. Please contact your Systems Administrator for information on how to obtain a valid license.