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 |
|---|---|---|---|---|---|
| Biscayne Bay/Bear Cut | Florida | Poor | 1944 | 82 | 30,804 |
| PISTOL POINT CANAL | Florida | Good | 1945 | 81 | 940 |
| BULLFROG CREEK | Florida | Fair | 1945 | 81 | 40,500 |
| MANAVISTA CREEK | Florida | Good | 1945 | 81 | 36,500 |
| EAGLE DITCH | Florida | Fair | 1945 | 81 | 3,200 |
| CROOKED LAKE CANAL SOUTH | Florida | Fair | 1945 | 81 | 18,500 |
| PERRY CREEK | Florida | Good | 1945 | 81 | 2,500 |
| KETTLE BRANCH | Florida | Fair | 1945 | 81 | 600 |
| LITTLE RIVER | Florida | Fair | 1945 | 81 | 3,400 |
| ECONFINA RIVER | Florida | Fair | 1945 | 81 | 1,300 |
| Massalina Bayou | Florida | Fair | 1945 | 81 | 3,000 |
| Murder Creek | Florida | Good | 1945 | 81 | 400 |
| MICCOSUKEE CANAL | Florida | Fair | 1945 | 81 | 500 |
| MICCOSUKEE CANAL | Florida | Fair | 1945 | 81 | 500 |
| MICCOSUKEE CANAL | Florida | Fair | 1945 | 81 | 310 |
| HOG BRANCH | Florida | Fair | 1946 | 80 | 21,000 |
| TWELVE MILE SLOUGH | Florida | Good | 1946 | 80 | 6,100 |
| TURKEY CREEK | Florida | Good | 1946 | 80 | 34,000 |
| LITTLE ALAFIA RIVER | Florida | Good | 1946 | 80 | 25,000 |
| SALT CREEK | Florida | Good | 1946 | 80 | 1,823 |
| LAKE STREETY CREEK | Florida | Good | 1946 | 80 | 3,800 |
| MAIN STREAM | Florida | Good | 1946 | 80 | 14,000 |
| ITCHEPACKESASSA CREEK | Florida | Good | 1946 | 80 | 2,386 |
| SOUTH PRONG SWAMP | Florida | Fair | 1946 | 80 | 250 |
| BULL CREEK | Florida | Good | 1946 | 80 | 750 |
| SANDLIN BAY | Florida | Fair | 1946 | 80 | 750 |
| SANDLIN BAY | Florida | Fair | 1946 | 80 | 750 |
| SANDLIN BAY | Florida | Good | 1946 | 80 | 750 |
| STEINHATCHEE RIVER | Florida | Good | 1946 | 80 | 2,600 |
| OVERFLOW RELIEF | Florida | Good | 1946 | 80 | 2,600 |
| MCCALLS CREEK | Florida | Fair | 1946 | 80 | 2,600 |
| Willacoochee Creek S | Florida | Fair | 1946 | 80 | 600 |
| Unnamed Branch | Florida | Good | 1946 | 80 | 3,000 |
| Big Cypress Branch | Florida | Fair | 1946 | 80 | 700 |
| Western Branch | Florida | Fair | 1946 | 80 | 700 |
| Pond Creek | Florida | Fair | 1946 | 80 | 8,100 |
| LITTLE POTTSBURG CREEK | Florida | Fair | 1946 | 80 | 16,600 |
| Creek | Florida | Fair | 1946 | 80 | 17,100 |
| Sospiro Canal | Florida | Good | 1946 | 80 | 12,750 |
| Sospiro Canal | Florida | Good | 1946 | 80 | 12,750 |
| LAKE WORTH | Florida | Fair | 1946 | 80 | 802 |
| KELL CREEK | Florida | Poor | 1947 | 79 | 740 |
| Creek | Florida | Good | 1947 | 79 | 26,500 |
| FOX BRANCH | Florida | Fair | 1947 | 79 | 14,000 |
| CYPRESS RUN | Florida | Fair | 1947 | 79 | 11,200 |
| PEACE RIVER | Florida | Fair | 1947 | 79 | 13,000 |
| PEACE RIVER OVERFLOW | Florida | Fair | 1947 | 79 | 13,000 |
| NORTH REEDY LAKE CREEK | Florida | Fair | 1947 | 79 | 1,100 |
| IDA BRANCH | Florida | Fair | 1947 | 79 | 1,100 |
| Lake Bowling Relief | Florida | Good | 1947 | 79 | 5,000 |
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.