In the first project of its kind in the mainland U.S., workers have completed the widening of a segmental fly-over bridge in Miami-Dade County. While segmental bridges are not unusual, the bridge presented unique challenges, such as making sure cantilevered wings could carry traffic loads when moved out to parapets. The feat was accomplished by Davie, Fla.-based Astaldi Construction Corp. and Tallahassee-based designer Corven Engineering.

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