Fred Redmon Bridge

In length of arch span, the Fred Redmon Bridge superseded the Cowlitz River Bridge in Mossyrock, Washington, as the longest concrete arch span in North America. The arch span of the Cowlitz River Bridge is 520 feet long. At the time the only bridge in the world with a longer arch span was Sweden's Sando Bridge (arch span 866 feet), built in 1943. As of 2005, Croatia's Kirk 1 Bridge, built in 1980, has the world's longest concrete arch (1,280 feet).

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