The National Park Service was modernizing cabins and rehabilitating the wastewater infrastructure in Glacier National Park in Columbia Falls, Mont. HK Contractors in Idaho Falls, Idaho, won the bid for general contractor. HK hired only subcontractors with extensive experience working in sensitive areas.“We were selected to pipe burst 2,000 feet of 6-inch mains,” says John Galligan, co-owner of Pipeshark in Elverson, Pa. “The contractor who cleaned and inspected them reported mostly terra cotta with some cast-iron pipe.”Galligan, brother David, and partner Steve Helms planned to transport their TRIC pipe bursting system 2,300 miles to Montana, but delays pushed the project
