The Arrigoni Bridge is a steel through arch bridge carrying Route 66 and Route 17 across the Connecticut River, connecting Middletown, Connecticut to Portland, Connecticut. When it opened in 1938, the 1,200 feet (370 m) bridge was the most expensive bridge ever built in Connecticut, at a cost of $3.5 million. Its two distinctive 600 feet (180 m) steel arches have the longest span length of any bridge in the state.
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