PERRINE MEMORIAL BRIDGE & SNAKE RIVER CANYON, USA

The I. B. Perrine Bridge at Twin Falls, Idaho is named after I. B. Perrine, who spearheaded the early 20th century irrigation projects in the Magic Valley region and is largely credited as the main founder of Twin Falls.
The steel cantilever bridge was originally named the Twin Falls-Jerome Intercounty Bridge. At the time that it opened to traffic in September 1927, it was the highest bridge in the world. However 50 years later, the original bridge was out-dated and unable to handle heavy loads and required replacement. It cost $9,700,000 to build the current bridge and its construction took approximately 3 years to finish (May 1973 – July 1976). After this, the original cantilever bridge to the west was disassembled.
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