- Location Kansas, Minnesota and Wisconsin
- TimelineAugust - October 2020
Michels Construction, Inc. performed casing removal on sections of natural gas pipe in Minnesota, Wisconsin and Kansas. The work sites in Minnesota and Wisconsin were wetlands, while the sites in Kansas were located in agricultural fields.
Crews first installed matting to access the sites, then located the pipeline to ensure depth of cover to pipe. Due to the depth of the pipe and the varying ground conditions, trench boxes were installed using a large excavator. Large dewatering pumps were used to expose the pipe casings that were to be removed. Once the casing was exposed, Michels Construction removed the existing casings using a plasma cutter. The pipeline coating was inspected for any damage and was repaired using tape wrap coating. After the coating was installed, crews removed the trench boxes and mats, the excavation was backfilled, and the site was restored.