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
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.