Historic Bridges in Connecticut

860 bridges built before 1951 in Connecticut still in service today.

Bridges Built Before 1951

The United States has 860 bridges in Connecticut 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
BEACON HILL BROOK Connecticut Fair 1950 76 269
MILL RIVER Connecticut Fair 1950 76 388
BANTAM RIVER Connecticut Fair 1950 76 196
MASHAMOQUET BROOK Connecticut Poor 1950 76 18
EIGHT MILE BROOK Connecticut Good 1950 76 275
NAUBESATUCK LAKE Connecticut Poor 1950 76 2,700
SPOON SHOP BROOK Connecticut Fair 1950 76 2,981
CLAPBOARD OAK BROOK Connecticut Fair 1950 76 136
WILLOW BROOK Connecticut Fair 1950 76 7,165
BRANCH BROOK Connecticut Good 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.