CASE STUDIES
Culvert Invert Lining
Case Studies, Storm & Sanitary
Project Overview This existing 9 foot diameter corrugated metal pipe (CMP) was corroding or rusting through the invert or base of the pipe. At some points, water was just beginning to undermine the culvert forcing the township to take some action or risk affecting the roadway embankment potentially forcing an
Flume/Down Slope Swale
Bridges and Roadways, Case Studies, Storm & Sanitary
Case Study Description When the SCDOT had severe erosion on a slope face of an overpass bridge on I-26 in Spartanburg County, they turned to a proven solution. Having already used Combat Concrete GCCM material for a similar application, they knew its value. In both cases water coming off the
Irrigation Collection/Distribution Structure Lining
Storm & Sanitary
Project Overview The North Poudre Irrigation Company has installed and maintained irrigation water collection and distribution structures such as the one pictured to the right for nearly 100 years. These structures are quite common in the west, and serve to collect irrigation water inflows, then redirect them into local irrigation
Headwall Scour Protection
Case Studies, Storm & Sanitary
Project Overview The NCDOT replaced a double barrel culvert with a larger single barrel culvert under Ivey Road about a half mile east of Route 87 in Graham. The old culvert experienced scour left of the culvert inlet and NCDOT wanted ensure that scour didn’t occur at the face of
Culvert Repair
Case Studies, Storm & Sanitary
Project Overview As a result of periodic culvert inspections the Virginia Department of Transportation (VDOT) identied the existing triple barrel steel plate culvert as requiring some action. Since the roadway above the existing culvert had just been repaved and new guardrail had been installed, VDOT wanted to avoid total replacement