May 06-08, 2018
CIM 2018
Vancouver BC, Canada
Bridge & Dam
Due in part to damage sustained during Hurricane Sandy, the New Jersey Department of Transportation awarded contracts in 2015 for improvements to the mile-long Robert Mathis double-leaf, bascule bridge.
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A new bridge that spans “The Gut” channel in South Bristol, Maine was recently opened to vehicle and boat traffic. The original, historic 82-year-old swing bridge had reached the end of its useful life as it occasionally got stuck in the open or closed position.
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Originally built in 1922, the Fort Street fixed-trunnion bascule bridge in Detroit, Michigan allows large cargo ships to travel the Rouge River while transporting material to the nearby Ford Motor plant. The double-leaf bascule design utilized below-deck counterweights to raise and lower the two roadway leaf/sections.
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The 17th Street double leaf bascule lift bridge in Two Rivers, Wisconsin has been in operation since 1949, allowing the local commercial fishing fleet access to Lake Michigan via the East Twin River.
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Over the past decade, infrastructure engineers have been cautioning municipalities and governing bodies across the U.S. about the deteriorating condition of the country’s bridges and dams. The average age of the 609,380 bridges in the U.S. is now nearly 42 years old.
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