A PowerDigger 3D GPS machine control system from Leica Geosystems enabled a Kentucky contractor to see excavation work underwater by viewing a display screen in the operator’s cab.
Last summer, M. Bowling Inc, Henderson, KY, excavated 130,000 cubic yards of earth to widen and deepen the Ohio River in preparation for a possible expansion of the John T. Myers Locks and Dam near Mt. Vernon, IN. Bowling was working under a $3.3-million subcontract to prime contractor Semper Tek-Intersteel Joint Venture, Lexington, KY.