Safe Harbor Hydroelectric Development, Safe Harbor Water Power Corporation - recent reconstruction costing $125 million enhanced the east facade of the service building. The powerhouse is 1,011 feet long with dam included totalling 4,869 feet across the Susquehanna River. this hydroelectiric generating plant utilizes a 55 foot head of water impounded in a 10 mile long Lake Clarke; located 32 miles above the Chesapeake Bay.