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The US 70 Gila River Bridge near Bylas, Arizona is the state’s fourth longest bridge, measuring 1,829 feet in length. ADOT has replaced the original bridge, built in 1957, with a new bridge. The $12.7 million project features wider travel lanes, emergency shoulders and a pedestrian walkway. – ArizonaDOT on YouTube
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Prestressed box girder: a beam made from concrete and steel; prestressed within its elastic limit to counteract stresses that occur under the bridge’s load. Girder size depends on the unique design of a bridge. These girders are 96 feet long and weight 93,000 pounds.
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InfrastructureUSA is a project of the nonprofit Open Space Institute, Inc. as part of its Citizen Action Program.