White Oak, MS — Mississippi DOT avoids road collapse with culvert reline
Mississippi DOT District Relines Culvert with Snap-Tite® Pipe
Many culverts in the United States were installed 40 to 50 years ago and now have exceeded their design life and need repair. In this case, two 72- inch diameter corrugated metal pipe (CMP) culverts in White Oak, Mississippi started to fail. The Mississippi Department of Transportation (DOT) District Seven feared that the road might collapse if the culverts were not repaired in a timely manner. Shutting down and digging up the road to fix the problem was not an option as it would detour traffic 15-20 miles away from the public’s normal driving route.
Matt Dugas, maintenance engineer for the District Seven DOT, met with Snap-Tite® representative Ryan Harrington to determine a viable solution for the culvert repair that would not disturb the road. The DOT chose to reline the old culverts instead of using a dig and replace method. During the initial inspection of the CMP in the fall, it was decided that 63-inch diameter Snap-Tite® pipe was the best size pipe for the project. Another benefit of using the no-dig Snap-Tite® relining method was that the DOT crew could install the Snap-Tite® themselves– saving the district money.