Two starts, One big finish.Like other great feats of transport engineering...
The transcontinental railway or the "Chunnel," building the US’ first concrete-steel composite arch bridge across the Colorado River is a delicate task.
When it’s finished, the 1,900-foot-long, 88-foot-wide bridge will carry 17,000 cars a day between Arizona & Nevada, replacing a 2-lane roadway atop the Hoover Dam.
Article: Las Vegas Weekly
Earthquake, tsunami,
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