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.
| Bridge | State | Condition | Year Built | Age (Years) | ADT |
|---|---|---|---|---|---|
| SUMNER BROOK | Connecticut | Fair | 1938 | 88 | 3,800 |
| PEQUONNOCK RIVER | Connecticut | Poor | 1938 | 88 | 8,240 |
| MENUNKETESUCK RIVER | Connecticut | Fair | 1938 | 88 | 595 |
| LITTLE RIVER | Connecticut | Good | 1938 | 88 | 684 |
| POOTATUCK RIVER | Connecticut | Good | 1938 | 88 | 184 |
| BLACKBERRY RIVER | Connecticut | Fair | 1938 | 88 | 628 |
| ROARING BROOK | Connecticut | Good | 1938 | 88 | 5,900 |
| P & W RAILROAD | Connecticut | Fair | 1938 | 88 | 16,000 |
| HOUSATONIC RAILROAD | Connecticut | Fair | 1938 | 88 | 550 |
| METRO NORTH RAILROAD | Connecticut | Fair | 1938 | 88 | 11,100 |
| CARR BROOK | Connecticut | Fair | 1938 | 88 | 2,900 |
| CRICKER BROOK | Connecticut | Fair | 1938 | 88 | 15,600 |
| CRICKER BROOK | Connecticut | Fair | 1938 | 88 | 5,900 |
| BRANCH BROOK | Connecticut | Fair | 1939 | 87 | 8,300 |
| NAUG. RR & PRIVATE ROAD | Connecticut | Fair | 1939 | 87 | 8,300 |
| SHETUCKET RIVER | Connecticut | Fair | 1939 | 87 | 5,000 |
| BEAVER BROOK | Connecticut | Fair | 1939 | 87 | 4,300 |
| ROUTE 15 | Connecticut | Fair | 1939 | 87 | 3,200 |
| ROUTE 15 | Connecticut | Fair | 1939 | 87 | 9,660 |
| BAYBERRY LANE #1 | Connecticut | Fair | 1939 | 87 | 65,700 |
| ROUTE 15 | Connecticut | Fair | 1939 | 87 | 2,200 |
| ROUTE 15 | Connecticut | Fair | 1939 | 87 | 1,700 |
| ROUTE 15 | Connecticut | Fair | 1939 | 87 | 674 |
| ROUTE 15 | Connecticut | Fair | 1939 | 87 | 750 |
| ROUTE 15 | Connecticut | Fair | 1939 | 87 | 4,700 |
| RESERVOIR AVENUE | Connecticut | Fair | 1939 | 87 | 66,300 |
| POCOTOPAUG CREEK | Connecticut | Fair | 1939 | 87 | 6,300 |
| HOLLAND BROOK | Connecticut | Fair | 1939 | 87 | 14,700 |
| ROARING BROOK | Connecticut | Fair | 1939 | 87 | 8,400 |
| SAUGATUCK RESERVOIR | Connecticut | Poor | 1939 | 87 | 2,600 |
| SAUGATUCK RESERVOIR BRK | Connecticut | Fair | 1939 | 87 | 2,900 |
| MILL RIVER | Connecticut | Fair | 1939 | 87 | 10,800 |
| MOUNT HOPE RIVER | Connecticut | Fair | 1939 | 87 | 1,600 |
| BEAVER BROOK | Connecticut | Good | 1939 | 87 | 3,000 |
| POMPERAUG RIVER | Connecticut | Fair | 1939 | 87 | 7,000 |
| FARMINGTON RIVER | Connecticut | Fair | 1939 | 87 | 15,500 |
| W BR FARMINGTON RIVER | Connecticut | Fair | 1939 | 87 | 6,600 |
| BIGELOW BROOK | Connecticut | Fair | 1939 | 87 | 1,900 |
| SHETUCKET RIVER | Connecticut | Fair | 1939 | 87 | 2,600 |
| STREAM | Connecticut | Fair | 1939 | 87 | 5,700 |
| RATTLESNAKE BROOK | Connecticut | Fair | 1939 | 87 | 17,900 |
| ROARING BROOK | Connecticut | Fair | 1939 | 87 | 3,246 |
| SCANTIC RIVER | Connecticut | Fair | 1939 | 87 | 250 |
| FARM CREEK | Connecticut | Good | 1939 | 87 | 2,520 |
| SALMON BROOK | Connecticut | Fair | 1939 | 87 | 252 |
| STILL RIVER | Connecticut | Fair | 1939 | 87 | 125 |
| CHOATE BROOK | Connecticut | Fair | 1939 | 87 | 714 |
| QUANDUCK BROOK | Connecticut | Fair | 1939 | 87 | 619 |
| WINTERGREEN BROOK | Connecticut | Fair | 1939 | 87 | 7,000 |
| MILL RIVER | Connecticut | Fair | 1939 | 87 | 717 |
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.