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 |
|---|---|---|---|---|---|
| INDIAN HOLE BROOK | Connecticut | Fair | 1910 | 116 | 700 |
| ASH CREEK | Connecticut | Fair | 1910 | 116 | 10,100 |
| WEST RIVER & PARK ROAD | Connecticut | Fair | 1910 | 116 | 3,100 |
| METRO-NORTH RAILROAD | Connecticut | Good | 1910 | 116 | 1,102 |
| FARMINGTON CANAL GREENWA | Connecticut | Good | 1910 | 116 | 6,400 |
| FIVE MILE RIVER | Connecticut | Poor | 1910 | 116 | 5,120 |
| AMTRAK RAILROAD | Connecticut | Poor | 1910 | 116 | 1,200 |
| WEST RIVER | Connecticut | Poor | 1910 | 116 | 5,500 |
| BIGELOW BROOK | Connecticut | Poor | 1910 | 116 | 55 |
| HOP RIVER | Connecticut | Fair | 1910 | 116 | 769 |
| STONY BROOK | Connecticut | Fair | 1910 | 116 | 2,542 |
| CONN VALLEY RAILROAD | Connecticut | Fair | 1910 | 116 | 1,274 |
| HARBOR BROOK | Connecticut | Good | 1910 | 116 | 807 |
| BANTAM RIVER | Connecticut | Fair | 1910 | 116 | 380 |
| AMTRAK RAILROAD | Connecticut | Poor | 1910 | 116 | 545 |
| ROARING BROOK | Connecticut | Fair | 1910 | 116 | 1,500 |
| HOUSATONIC RR | Connecticut | Fair | 1910 | 116 | 4,780 |
| GULF STREAM | Connecticut | Fair | 1910 | 116 | 520 |
| NICKEL MINE BROOK | Connecticut | Fair | 1910 | 116 | 390 |
| NORWALK RIVER | Connecticut | Poor | 1910 | 116 | — |
| BOGGS POND BROOK | Connecticut | Fair | 1911 | 115 | 13,740 |
| STRICKLAND BROOK | Connecticut | Fair | 1911 | 115 | 18,700 |
| HOUSATONIC RR | Connecticut | Good | 1911 | 115 | 2,500 |
| CENTRAL NEW ENGLAND RR | Connecticut | Fair | 1912 | 114 | 7,600 |
| AMTRAK RAILROAD | Connecticut | Fair | 1912 | 114 | 1,970 |
| CENTRAL NEW ENGLAND RR | Connecticut | Good | 1912 | 114 | 3,300 |
| AMTRAK RAILROAD | Connecticut | Fair | 1912 | 114 | 13,600 |
| HOUSATONIC RR | Connecticut | Fair | 1912 | 114 | 343 |
| PROV & WORC RAILROAD | Connecticut | Fair | 1912 | 114 | 8,452 |
| NORWALK RIVER | Connecticut | Fair | 1912 | 114 | 2,185 |
| NAUGATUCK RIVER | Connecticut | Fair | 1912 | 114 | 12,900 |
| MIDDLE RIVER | Connecticut | Fair | 1912 | 114 | 914 |
| W BRANCH NAUGATUCK RIVER | Connecticut | Fair | 1912 | 114 | 3,090 |
| NOROTON RIVER | Connecticut | Good | 1913 | 113 | 7,900 |
| CONNECTICUT RIVER | Connecticut | Poor | 1913 | 113 | 9,100 |
| WASH BROOK | Connecticut | Fair | 1913 | 113 | 17,800 |
| METRO NORTH RAILROAD | Connecticut | Fair | 1913 | 113 | 3,300 |
| POCOTOPAUG CREEK | Connecticut | Fair | 1913 | 113 | 3,100 |
| NECK RIVER | Connecticut | Fair | 1914 | 112 | 7,500 |
| STEELE BROOK | Connecticut | Fair | 1914 | 112 | 12,000 |
| METRO NORTH RAILROAD | Connecticut | Fair | 1914 | 112 | 552 |
| WILLIMANTIC RIVER | Connecticut | Poor | 1914 | 112 | 800 |
| LITTLE RIVER | Connecticut | Fair | 1914 | 112 | 572 |
| HOUSATONIC RR | Connecticut | Fair | 1915 | 111 | 14,200 |
| WALLACE RACEWAY | Connecticut | Poor | 1915 | 111 | 12,500 |
| ABANDONED DOT RAILROAD | Connecticut | Fair | 1915 | 111 | 2,387 |
| WASH BROOK | Connecticut | Good | 1916 | 110 | 8,100 |
| JORDAN BROOK | Connecticut | Good | 1916 | 110 | 8,100 |
| WEST BRANCH TROUT BROOK | Connecticut | Poor | 1916 | 110 | 7,000 |
| TUMBLE BROOK | Connecticut | Fair | 1916 | 110 | 3,500 |
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.