Making the Grade

Adjustable turnbuckle risers offer simple, secure way to bring manholes up to grade.

Making the Grade


The Illinois Department of Transportation approved the use of adjustable riser rings as a better solution when raising utility and manhole rims to grade after pavement lifts.

As road surfaces age, deteriorate, and go through resurfacing cycles, maintaining manholes and keeping them at the proper grade becomes increasingly difficult.

Nearly 20 years ago, the Illinois Department of Transportation approved the use of adjustable riser rings when raising...

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