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Seven Mile Bridge
The Overseas Highway's long leap through the Florida Keys
The Seven Mile Bridge carries the Overseas Highway across open water in the Florida Keys, near the midpoint of the island chain between Knight's Key and Little Duck Key. One of the longest bridges in the country, it skims just above the turquoise shallows where the Gulf of Mexico meets the Atlantic, giving drivers the sensation of crossing the sea itself.
The modern bridge, opened in 1982, runs beside the surviving piers of Henry Flagler's early-1900s Overseas Railroad, which first stitched the Keys together before a 1935 hurricane destroyed it. The old span is now a fishing pier and walkway.