Douglas Co., KS — Rehabilitation Saves Newly Paved Road

County Keeps Newly Paved Road Intact Despite Failing Culvert Underneath

The Problem
In Douglas County, Kansas, a 48-inch diameter, 82-foot long corrugated metal pipe (CMP) culvert started to fail. The culvert was located under a newly-paved road. The Douglas County Department of Public Works had to act quickly to repair the culvert without digging up or disturbing the road above.

The Solution
As a solution to repairing the culvert without digging up the road, Snap-Tite® representative Steve Cooney spoke with the Douglas County Highway Department Manager Mike Perkins and recommended the use of a 42-inch diameter Snap-Tite® culvert lining pipe.
The no-dig HDPE Snap-Tite® culvert-lining pipe, which has a patented male/female machining at each end of the HDPE, is ‘snapped’ together, piece-by-piece, and pushed into the full length of an existing pipe. Any annular space and voids between the old culvert and new liner are filled in with grout. The pipe liner is available in lengths from two feet to 50 feet, and is available for culverts with diameters from eight inches to 84 inches. Snap-Tite® also meets American Association of State Highway and Transportation Officials (AASHTO) Standard M326 for rehabilitating culverts.
“We used the pipe liner on a county route road that recently received a 3R type treatment with full depth patching and a complete mill and overlay project,” said Perkins. “The defective pipe was found during this construction project and it was determined that we would make repairs after the contractor completed his work. The other obstacle was to make longterm repairs without disturbing the recently rehabilitated roadway.”

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