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 |
|---|---|---|---|---|---|
| FIVE MILE RIVER | Connecticut | Fair | 1933 | 93 | 10,300 |
| METRO NORTH RAILROAD | Connecticut | Fair | 1933 | 93 | 9,800 |
| RIPPOWAM RIVER | Connecticut | Poor | 1933 | 93 | 3,390 |
| CUMMINGS BROOK | Connecticut | Fair | 1933 | 93 | 1,220 |
| ROOSTER RIVER | Connecticut | Fair | 1933 | 93 | 5,070 |
| AMTRAK RAILROAD | Connecticut | Good | 1933 | 93 | 440 |
| BUNGEE BROOK | Connecticut | Fair | 1933 | 93 | 750 |
| BEACON HILL BROOK | Connecticut | Good | 1933 | 93 | 2,600 |
| COGINCHAUG RIVER | Connecticut | Fair | 1933 | 93 | 1,071 |
| AMTRAK RAILROAD | Connecticut | Fair | 1933 | 93 | 10,400 |
| HOP BROOK | Connecticut | Fair | 1933 | 93 | 10,800 |
| LITTLE RIVER | Connecticut | Fair | 1933 | 93 | 13,900 |
| METRO NORTH RAILROAD | Connecticut | Fair | 1933 | 93 | 13,536 |
| AMTRAK RAILROAD | Connecticut | Fair | 1933 | 93 | 2,100 |
| FARM RIVER | Connecticut | Fair | 1933 | 93 | 2,300 |
| WEWAKA BROOK | Connecticut | Fair | 1933 | 93 | 265 |
| GUINEA BROOK | Connecticut | Fair | 1934 | 92 | 2,300 |
| FRESHWATER BROOK | Connecticut | Fair | 1934 | 92 | 12,100 |
| ROUTE 127 | Connecticut | Fair | 1934 | 92 | 77,400 |
| WEST BRANCH SALMON BROOK | Connecticut | Fair | 1934 | 92 | 1,900 |
| WIMISINK BROOK | Connecticut | Fair | 1934 | 92 | 1,100 |
| MILL BROOK | Connecticut | Fair | 1934 | 92 | 5,200 |
| PACHAUG RIVER | Connecticut | Fair | 1934 | 92 | 3,000 |
| EIGHT MILE BROOK | Connecticut | Fair | 1934 | 92 | 11,800 |
| LITTLE RIVER | Connecticut | Fair | 1934 | 92 | 17,200 |
| WEST RIVER | Connecticut | Fair | 1934 | 92 | 7,100 |
| HAMMONASSET RIVER | Connecticut | Fair | 1934 | 92 | 4,600 |
| WEEKEEPEEMEE RIVER | Connecticut | Fair | 1934 | 92 | 1,700 |
| DENISON BROOK | Connecticut | Fair | 1934 | 92 | 6,200 |
| GLASGO POND | Connecticut | Fair | 1934 | 92 | 2,500 |
| CONVERSE POND BROOK | Connecticut | Fair | 1934 | 92 | 53,800 |
| HIGLEY BROOK | Connecticut | Fair | 1934 | 92 | 8,100 |
| WEPAWAUG RIVER | Connecticut | Fair | 1934 | 92 | 8,345 |
| FARMILL RIVER | Connecticut | Fair | 1934 | 92 | 17,212 |
| YANTIC RIVER | Connecticut | Fair | 1934 | 92 | 3,200 |
| HOP RIVER | Connecticut | Poor | 1934 | 92 | 401 |
| LITTLE JACKS BROOK | Connecticut | Good | 1934 | 92 | 518 |
| HANCOCK BROOK | Connecticut | Fair | 1934 | 92 | 10,200 |
| MENUNKETESUCK RIVER | Connecticut | Fair | 1934 | 92 | 937 |
| CHATFIELD HOLLOW BROOK | Connecticut | Good | 1934 | 92 | 359 |
| HURRICANE BROOK | Connecticut | Fair | 1934 | 92 | 20 |
| PEQUABUCK RIVER | Connecticut | Fair | 1935 | 91 | 16,600 |
| MAD RIVER | Connecticut | Fair | 1935 | 91 | 7,300 |
| WEST BRANCH SALMON BROOK | Connecticut | Fair | 1935 | 91 | 10,000 |
| PRVT ACCESS RD AND BROOK | Connecticut | Fair | 1935 | 91 | 53,800 |
| CONVERSE POND BROOK | Connecticut | Fair | 1935 | 91 | 53,800 |
| ROUTE 15 | Connecticut | Fair | 1935 | 91 | 3,800 |
| STILL RIVER | Connecticut | Fair | 1935 | 91 | 3,100 |
| FARM RIVER | Connecticut | Fair | 1935 | 91 | 12,200 |
| MAD RIVER | Connecticut | Fair | 1935 | 91 | 10,400 |
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.