Historic Bridges in Arizona

1,189 bridges built before 1951 in Arizona still in service today.

Bridges Built Before 1951

The United States has 1,189 bridges in Arizona 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
Wash Arizona Good 1934 92 2,281
Wash Arizona Good 1934 92 2,281
Wash Arizona Good 1934 92 2,281
Wash Arizona Good 1934 92 1,673
Wash Arizona Fair 1934 92 1,673
Wash Arizona Good 1934 92 1,673
Wash Arizona Good 1934 92 1,673
Wash Arizona Good 1934 92 1,673
Wash Arizona Good 1934 92 1,673
Wash Arizona Good 1934 92 1,673
Wash Arizona Good 1934 92 1,673
Wash Arizona Good 1934 92 1,673
Wash Arizona Good 1934 92 1,673
Wash Arizona Good 1934 92 1,673
Wash Arizona Good 1934 92 1,673
Wash Arizona Good 1934 92 1,673
Wash Arizona Good 1934 92 1,673
Wash Arizona Good 1934 92 1,673
Wash Arizona Good 1934 92 1,673
Wash Arizona Good 1934 92 1,673
Wash Arizona Good 1934 92 1,673
Wash Arizona Good 1934 92 1,673
Wash Arizona Good 1934 92 1,673
Wash Arizona Good 1934 92 1,494
Wash Arizona Fair 1934 92 1,673
Wash Arizona Good 1934 92 1,673
Wash Arizona Fair 1934 92 1,673
Wash Arizona Fair 1934 92 1,494
Wash Arizona Good 1934 92 1,494
Wash Arizona Good 1934 92 1,673
Wash Arizona Good 1934 92 1,673
Wash Arizona Good 1934 92 1,673
Wash Arizona Good 1934 92 1,673
Wash Arizona Fair 1934 92 1,673
Wash Arizona Good 1934 92 1,673
Wash Arizona Good 1934 92 1,673
Wash Arizona Good 1934 92 1,673
Wash Arizona Good 1934 92 1,843
Wash Arizona Good 1934 92 1,843
Wash Arizona Good 1934 92 1,843
Wash Arizona Good 1934 92 1,843
Wash Arizona Good 1934 92 1,843
Wash Arizona Good 1934 92 12,740
Wash Arizona Good 1934 92 12,740
Wash Arizona Good 1934 92 3,537
Wash Arizona Good 1934 92 3,537
Wash Arizona Good 1934 92 3,537
Wash Arizona Good 1934 92 3,537
Wash Arizona Good 1934 92 3,537
Wash Arizona Good 1934 92 3,436

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.