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.
| Bridge | State | Condition | Year Built | Age (Years) | ADT |
|---|---|---|---|---|---|
| Canal 110 | Florida | Fair | 1949 | 77 | 3,000 |
| Canal 114 | Florida | Fair | 1949 | 77 | 3,000 |
| Canal 115 | Florida | Good | 1949 | 77 | 3,000 |
| Canal 116 | Florida | Fair | 1949 | 77 | 3,000 |
| Canal 117 | Florida | Good | 1949 | 77 | 3,000 |
| SPRING LAKE CANAL | Florida | Fair | 1949 | 77 | 6,600 |
| GRIFFINS DITCH | Florida | Fair | 1949 | 77 | 6,600 |
| LORIDA CREEK | Florida | Fair | 1949 | 77 | 6,600 |
| ARBUCKLE CREEK | Florida | Fair | 1949 | 77 | 6,600 |
| FROG CREEK | Florida | Fair | 1949 | 77 | 1,500 |
| WARES CREEK | Florida | Fair | 1949 | 77 | 1,240 |
| CR-655 | Florida | Fair | 1949 | 77 | 11,000 |
| S PRONG ST MARYS RIV | Florida | Good | 1949 | 77 | 650 |
| DOUBLE RUN CREEK | Florida | Fair | 1949 | 77 | 3,000 |
| DOUBLE RUN CREEK | Florida | Fair | 1949 | 77 | 3,000 |
| DOUBLE RUN CREEK | Florida | Fair | 1949 | 77 | 3,000 |
| Crooked Creek | Florida | Fair | 1949 | 77 | 9,900 |
| Burnt Mill Creek | Florida | Fair | 1949 | 77 | 7,900 |
| Carpenter Creek | Florida | Fair | 1949 | 77 | 1,900 |
| Dunham Branch | Florida | Good | 1949 | 77 | 1,100 |
| Unnamed Branch | Florida | Fair | 1949 | 77 | 900 |
| Penasula Creek | Florida | Fair | 1949 | 77 | 900 |
| Cypress Creek Relief | Florida | Fair | 1949 | 77 | 2,200 |
| Cypress Creek | Florida | Fair | 1949 | 77 | 2,800 |
| Unnamed Branch | Florida | Fair | 1949 | 77 | 1,100 |
| Megginnis Arm | Florida | Fair | 1949 | 77 | 36,000 |
| Black Creek | Florida | Fair | 1949 | 77 | 5,900 |
| Patty Creek | Florida | Fair | 1949 | 77 | 5,300 |
| Munson Slough | Florida | Poor | 1949 | 77 | 5,400 |
| Yellow River | Florida | Fair | 1949 | 77 | 400 |
| Saultsman Bayou | Florida | Fair | 1949 | 77 | 20,750 |
| CEDAR SWAMP CREEK | Florida | Fair | 1949 | 77 | 53,500 |
| DEEP CREEK | Florida | Poor | 1949 | 77 | 2,500 |
| LITTLE DUNN CREEK | Florida | Fair | 1949 | 77 | 2,500 |
| DUNN CREEK | Florida | Fair | 1949 | 77 | 2,500 |
| DEEP CREEK | Florida | Fair | 1949 | 77 | 3,100 |
| MILLS CREEK | Florida | Fair | 1949 | 77 | 10,700 |
| COW CREEK | Florida | Fair | 1949 | 77 | 1,031 |
| SAN SEBASTIAN RIVER | Florida | Poor | 1949 | 77 | 16,500 |
| BISCAYNE CANAL C-8 | Florida | Good | 1949 | 77 | 14,161 |
| BISCAYNE CANAL C-8 | Florida | Good | 1949 | 77 | 14,161 |
| Palmer Lake | Florida | Fair | 1949 | 77 | 3,662 |
| Intracoastal Waterway | Florida | Fair | 1949 | 77 | 7,300 |
| MYRTLE SLOUGH | Florida | Fair | 1950 | 76 | 5,300 |
| COLLEEN CANAL | Florida | Poor | 1950 | 76 | 2,500 |
| DEEP LAKE STRAND | Florida | Good | 1950 | 76 | 20 |
| Canal 060 | Florida | Good | 1950 | 76 | 3,000 |
| Canal 078 | Florida | Good | 1950 | 76 | 3,400 |
| Canal 111 | Florida | Fair | 1950 | 76 | 3,000 |
| Canal 142 | Florida | Good | 1950 | 76 | 16,900 |
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.