Failing culvert saved with trenchless point repairProblem:An Atlanta suburb was experiencing severe infiltration from a failing corrugated culvert, installed years before as a stream crossing. The exposed 8-inch culvert was used as a sewer line between two manholes and a retaining wall was built directly on top of it. Rusting over the years caused a couple dime-sized holes, allowing stream water to pour directly in. Traditional dig and replace methods required bypassing both the sewer and the stream to prevent sedimentation, in addition to demolishing and relocating the retaining wall. Contractor quotes were $90,000 and up, and would have required
