Problem: The city of Seymour, Indiana, lies about 10 feet lower than the land around it. Therefore, any work at depths greater than 5 feet generally requires a week of dewatering prior to breaking ground. Yet even dewatered, excavating in close proximity to building foundations is risky. When a blockage occurred in one neighborhood’s 16-inch asbestos-cement gravity sewer main, the city called Lawyer Excavation for the repair.
Solution: For this job, HammerHead Trenchless specified an HB125 static pipe bursting system, designed for use in pipe diameters 6 to 20 inches with 125-ton pullback capacity. It includes a downhole pulling unit and 4,500 psi
