Building the Hoover Dam By-Pass

Great Basin Hwy US/93, Henderson, NV
Mike O'Callaghan-Pat Tillman Memorial Bridge
>Spans the Colorado River between NV and AZ
>900 feet above the river
>First concrete/steel composite arch bridge built in US
>Widest composite arch bridge in Western Hemisphere
>Second highest bridge in US
>World's highest concrete arch bridge
In actuality, 3 bridges were constructed to complete this work. Watch for:
1. A cable/gantry crane/supply bridge to supply all materials to the work site.
2. A cable stay suspension bridge to construct the main arch.
3. The final arch supported main bridge.