Two Methods Of Culvert Repair Successful In Indiana

By Jeff Griffin, Senior Editor | March 2011, Vol. 66 No. 3

Trenchless rehabilitation of failing underground sewer infrastructure is covered extensively by the industry trade press and even consumer media, but the importance of deteriorated culverts beneath roads and highways typically receives less attention.

Failing culverts can provide costly and dangerous collapses to streets and highways, making culvert maintenance a critical issue for federal, state and local transportation departments. Whenever possible, culverts are rehabilitated, rather than costly and disruptive replacement.

Contractor Indiana Reline Inc. recently rehabilitated two culverts for the Ohio Department of Transportation that illustrates the benefits of two types of sliplining technologies: spiral wound pipe and conventional sliplining.

Indiana Reline Project Manager/Estimator Karl Bates said the spiral pipe project represented the largest Sekisui SPR PVC spiral wound pipe every installed in the United States. The other project, Bates said, used ISCO Snap-Tite culvert pipe liner and included the world’s first hydro-bell structure to provide a larger, wider intake at the culvert entrance.

The SPR liner project was with 132-inch spiral pipe lining installed in a 180-inch multi-plate culvert which had been installed in the 1950s to carry the flow of a creek under two-lane State Road 101 outside Tiffin, OH.

Bates said the project originally called for the culvert to be relined with 132-inch HDPE liner, but ODOT District 2 issued an addendum that allowed 132-inch machine spiral wound PVC liner in addition to HDPE.

Experience counts
Taking into consideration 10 successful projects installing 90-inch machine-wound spiral pipe the previous year, Bates said Indiana Reline was the successful bidder using spiral wound pipe, coming $45,000 lower than other bids.

SPR is a spiral wound liner utilizing steel reinforced, monolithic, interlocking PVC profile strip that is grouted in place with specified cementitious grout. SPR has the capability to negotiate bends and rehabilitate odd shaped pipelines because of the adaptability of the profile.

The basic installation process is to position a winding machine at the base of an access point of the host pipe and spirally wind monolithic panels of PVC into the host pipe to form a continuous, low-weight, watertight liner with high stiffness.

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