Historic Bridges in Alabama

2,703 bridges built before 1951 in Alabama still in service today.

Bridges Built Before 1951

The United States has 2,703 bridges in Alabama 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
Drainage Alabama Fair 1950 76 1,000
TRIB INDIAN CREEK Alabama Fair 1950 76 14,800
TRIB INDIAN CREEK Alabama Fair 1950 76 14,800

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.