In the Gila River Indian Community south of Phoenix, they employed a “bridge slide,” the first of its kind in Arizona, to place the pre-manufactured sections of bridge in position. It was done with minimal traffic disruptions and shrunk the construction period from four months to nine days.
The previous 140-foot bridge was built in 1961 and the location sits over a riverbed, which had been known for water spilling over the bridge decks during flood events. During construction, the old structure remained open to traffic almost the entire time. At the final stage of the project, the old structure was demolished and two girders and bridge decks were slid together to form the new bridge.
Courtesy of American Association of State Highway and Transportation Officials
