A dam big project: Incredible images of construction work on 1,900ft-long Hoover Bridge
It is one of the planet’s newest awe-inspiring superstructures - the Hoover Dam Bridge.
Now the giant construction project which is on schedule to be completed in September can be seen in all its glory in a series of stunning photographs.
Twelve years in planning and five years under construction, the development - known officially as the ‘Mike O’Callaghan-Pat Tillman Memorial Bridge’ - is finally taking shape.
Rising 890 ft above the Colorado River, when finished, its total length will be 1,900 ft, with its longest supported span running to 1080 ft.
Built in the shadow of the iconic Hoover Dam, which powers most of states Nevada and Arizona, the construction is the first concrete-steel composite arch bridge built in the United States.
With costs estimated to run to £160 million, the bridge is designed to take the pressure off the congested US Highway 93 and is expected to carry 17,000 trucks and cars daily.
It will also allow the roadway that runs on top of the Hoover Dam to close.
Having long been the most accessible river crossing between Nevada and Arizona, the dam is thought to be at risk of a terror strike, with trucks already banned from crossing.
In November, cars will no longer be able to cross the dam which was built in 1936.
Comment: Awesome pictures!