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Also known as the Gateway Freeway, SR 24 is designed to span one mile between Loop 202 (Santan Freeway) and Ellsworth Road. When construction is finished in fall 2013, this new east valley freeway will feature a freeway to freeway interchange, complete with elevated ramps connecting to and from Loop 202 near Hawes Road. -ArizonaDOT [...]
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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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Cycling in Tucson is very important and the modern street car poses a problem for cyclists. -mejiabrittny on YouTube.
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InfrastructureUSA is a project of the nonprofit Open Space Institute, Inc. as part of its Citizen Action Program.