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.
–ArizonaDOT on YouTube
Watch more videos from Arizona DOT’s Building A Freeway series
Tags: Arizona, ArizonaDOT, AZ
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