The Pigeon Key Historic District is a U.S. historic district (designated as such on March 16, 1990) located on Pigeon Key in Florida. The district is off U.S. 1 at mile marker 45. It contains 11 historic buildings and 3 structures. Although the old Seven Mile Bridge crosses over the island, it and its exit ramp to the island were closed in 2008. Since then, access has been by ferry or private watercraft only, but in 2014 FDOT approved a $77 million plan to restore it.