Historic Bridges in Florida

707 bridges built before 1951 in Florida still in service today.

Bridges Built Before 1951

The United States has 707 bridges in Florida built before 1951 that remain in active service. These structures are 75+ years old — many predate modern engineering codes and were not designed for today's traffic volumes and vehicle weights. The average design life of a bridge is 50 years, making these aging structures a significant infrastructure concern.

Clear
Bridge State Condition Year Built Age (Years) ADT
SW 109th Avenue Canal Florida Good 1950 76 1,307
Coral Gables Canal Florida Good 1950 76 3,703
Biscayne Point Canal Florida Fair 1950 76 520
MANATEE CREEK Florida Good 1950 76 5,760
LOXAHATCHEE RIVER Florida Fair 1950 76 4,000
TURNER RIVER CANAL Florida Fair 1950 76 1
FARMDALE BAYOU Florida Fair 1950 76 4

About Historic Bridge Data

Bridges built before 1951 are classified as historic in this database. Many were designed to 1940s standards with lower load limits and narrower lanes. While FHWA requires regular inspections of all bridges regardless of age, older structures often require more frequent monitoring and rehabilitation investment.