Fodor's Expert Review Seven Mile Bridge and Old Seven Mile Bridge

Marathon Family Fodor's Choice

This is one of the most photographed images in the Keys. Actually measuring slightly less than 7 miles, it connects the Middle and Lower Keys and is believed to be the world's longest segmental bridge, with 39 expansion joints separating its various concrete sections. Each April, runners gather in Marathon for the annual Seven Mile Bridge Run.

The expanse running parallel to the Seven Mile Bridge is what remains of the Old Seven Mile Bridge, an engineering and architectural marvel in its day that's now on the National Register of Historic Places. Once proclaimed the Eighth Wonder of the World, it rested on a record 546 concrete piers. A $44 million renovation, begun in 2017, is part of a 30-year, $77-million restoration and maintenance agreement between the Keys' Monroe County, Marathon municipal officials, and the Florida Department of Transportation. No cars are allowed on the old bridge, but the oft-photographed, 2.2-mile span is open to pedestrians and serves as the gateway... READ MORE

This is one of the most photographed images in the Keys. Actually measuring slightly less than 7 miles, it connects the Middle and Lower Keys and is believed to be the world's longest segmental bridge, with 39 expansion joints separating its various concrete sections. Each April, runners gather in Marathon for the annual Seven Mile Bridge Run.

The expanse running parallel to the Seven Mile Bridge is what remains of the Old Seven Mile Bridge, an engineering and architectural marvel in its day that's now on the National Register of Historic Places. Once proclaimed the Eighth Wonder of the World, it rested on a record 546 concrete piers. A $44 million renovation, begun in 2017, is part of a 30-year, $77-million restoration and maintenance agreement between the Keys' Monroe County, Marathon municipal officials, and the Florida Department of Transportation. No cars are allowed on the old bridge, but the oft-photographed, 2.2-mile span is open to pedestrians and serves as the gateway to historic Pigeon Key, an islet nestled beneath the “Old Seven” that was once home to about 400 workers constructing the railroad. 

READ LESS
Family Fodor's Choice Bridge

Quick Facts

Marathon, Florida  USA

What’s Nearby