Featured Case Studies


City of Wormleysburg, PA 

Pennsylvania's capitol, Harrisburg, nestles along the shores of the wide Susquehanna River across from the city of Wormleysburg. The Harvey Taylor Bridge connects busy Route 11/15, called Front Street in Wormleysburg, with the capitol's busy downtown and government complex. Beneath this bridge on the Wormleysburg side is a culvert that collects water from a small tributary stream, along with storm runoff from the bridge. Read More


City of Lancaster, SC - WWTP Clarifier

At a Sprayroq product installation demonstration in his hometown of Lancaster, S.C., Public Works Director Mack McDonald observed the use of SprayWall, which he believed could help restore an aging clarifier at the city’s wastewater treatment plant. He contacted Osborn Contract Services, Inc. (OCS) of Greer, S.C., to investigate his leaking clarifier. It’s structure was not only crumbling away daily, but due to an uneven substrate, was very difficult to clean and keep free of algae. Read More


Metropolitan Water Reclamation District of Chicago

The existing sewer to be rehabilitated was approximately 80 years old and was located 20 ft. below ground in Evanston, Illinois, a northern suburb of Chicago. The sewer started at a river edge overflow chamber in a school parking lot. It continued down the middle of the road to the start of the downtown business district. This project also included ten 4-foot-diameter manholes that were to be coated with Spraywall, a structural coating. Read More


Seneca Lift Station

The Kelly Station, a 40+ year old brick construction lift station operated by the City of Seneca, South Carolina had a had significant evidence of infiltration, root instrusion and a high level of debris build-up on its walls. It was determined that a replacement should be scheduled within a year’s time. Located less than 30 feet from popular Lake Keowee, the bottom of the structure is situated below lake level. Read More


City of Manistee, MI - 52-inch Storm Sewer

The 52-inch storm sewer was installed in the early 1900s. The line takes in all of the storm water for the south side of the city. The sewer is 20 feet deep and runs along railroad tracks, then discharges into the Manistee River. The sewer is constructed of 4”x 8” bricks, which were hand-laid two layers thick. Soil was entering the line through a pip caused by missing bricks. This created a sinkhole along the edge of the railroad tracks. Read More

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