Designed, researched, manufactured and installed in Maine, this structure is used over a harsh marine environment to reduce long-term maintenance costs SOURCE: OfficialWire 07/18/2011–Boothbay Harbor, Maine–The 32-foot-wide, eight-span, 540-foot long Knickerbocker, the largest composite bridge in the world, is now open in Boothbay, Maine. Built in 1930 with a major superstructure rehabilitation in 1983, the [...]