Municipality replaces water main without closing major street
Problem: A 2,690-foot run of 8- and 10-inch cast iron water main beneath Kingston, Ontario’s Princess Street required one- and two-step upsize replacement with 12-inch PVC pipe. The run lay in backfill over rock 5 to 8 feet beneath a traffic lane that ran alongside a strip mall, the Ontario Government Building and the Kingston Centre shopping mall.
Solution: Utilities Kingston contracted Gordon Barr Ltd. to replace 2,215 feet of the run using pipe bursting. Entry pits were 30 to 50 feet in length. Machine pits for the HammerHead Trenchless HB125 bursting unit, its
