Browse Bridge Database

4,363 bridges in the FHWA National Bridge Inventory in Connecticut.

National Bridge Inventory Database

Browse 4,363 bridges from the Federal Highway Administration National Bridge Inventory. Filter by state, condition rating, or search by name and location.

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BridgeLocationConditionYear BuiltLengthADT
BYRAM RIVER Connecticut Good 1955 18.1 m 675
ROUTE 15 Connecticut Fair 1939 25.9 m 674
SANDY BROOK Connecticut Fair 1948 25.3 m 673
SAMMIS BROOK Connecticut Good 1990 11.6 m 673
ROUTE 11 SOUTHBOUND Connecticut Good 1971 69.2 m 672
CSX RAILROAD Connecticut Fair 1983 52.4 m 671
SANDY BROOK Connecticut Good 2023 30.5 m 670
INDIAN POND CREEK Connecticut Fair 1984 7.6 m 670
TEN MILE RIVER Connecticut Good 1991 11.6 m 668
MILL RIVER Connecticut Fair 1957 11.3 m 664
POLAND RIVER Connecticut Fair 1955 8.2 m 663
SANDY BROOK Connecticut Good 2013 36.6 m 662
INTERSTATE 84 Connecticut Fair 1962 63.4 m 661
MORGAN BROOK Connecticut Fair 1957 18.6 m 660
BEACON HILL BROOK Connecticut Good 1982 17.1 m 660
INTERSTATE 84 Connecticut Fair 1963 69.8 m 658
ROCK BROOK Connecticut Good 1997 13.4 m 657
W BRANCH NAUGATUCK RIVER Connecticut Fair 1960 24.9 m 655
WEST ASPETUCK RIVER Connecticut Poor 1937 10.7 m 655
SCANTIC RIVER Connecticut Fair 1949 13.7 m 654
ROUTE 15 Connecticut Fair 1938 23.2 m 650
MENUNKETESUCK RIVER Connecticut Good 2022 9.9 m 650
FIVE MILE RIVER Connecticut Fair 2000 6.7 m 650
SANDY BROOK Connecticut Good 1956 8.2 m 650
PEQUONNOCK RIVER Connecticut Good 1979 10.7 m 650
AMTRAK RAILROAD Connecticut Good 1925 11.9 m 650
INTERSTATE-395 Connecticut Poor 1958 63.4 m 645
MERRYALL BROOK Connecticut Good 2014 8.0 m 645
WACHOCASTINOOK BROOK Connecticut Good 2002 14.5 m 645
FURNACE BROOK Connecticut Poor 1935 7.3 m 644
MORRISSEY BROOK Connecticut Good 2003 10.4 m 644
STONY BROOK Connecticut Fair 2001 12.2 m 644
SAWMILL BROOK Connecticut Fair 1936 11.6 m 644
MASHAMOQUET BROOK Connecticut Good 1999 16.4 m 643
TRANSYLVANIA BROOK Connecticut Good 2019 15.1 m 642
LEE BROOK Connecticut Good 2001 7.9 m 642
ROARING BROOK Connecticut Fair 1964 7.8 m 640
DECKERS BROOK Connecticut Good 1979 6.4 m 633
SAUGATUCK RIVER Connecticut Fair 1980 23.5 m 632
ROARING BROOK Connecticut Good 1985 7.6 m 630
WILLIMANTIC RIVER Connecticut Fair 1950 37.5 m 629
BLACKBERRY RIVER Connecticut Fair 1938 24.1 m 628
MARSHEPAUG RIVER Connecticut Fair 1970 18.3 m 627
DECKERS BROOK Connecticut Good 1979 7.6 m 626
WILLOW BROOK Connecticut Poor 1924 9.1 m 625
ASPETUCK RIVER Connecticut Good 2016 6.2 m 625
WEST ASPETUCK RIVER Connecticut Fair 1975 7.9 m 625
WEST ASPETUCK RIVER Connecticut Poor 1956 15.2 m 625
SAUGATUCK RIVER Connecticut Good 2011 27.4 m 622
QUANDUCK BROOK Connecticut Fair 1939 11.3 m 619

Frequently Asked Questions

The National Bridge Inventory (NBI) is a federal database maintained by the Federal Highway Administration containing inspection data for all bridges on public roads in the U.S. with a span of more than 20 feet. Bridge owners must inspect each structure at least every 24 months.

ADT stands for Average Daily Traffic — the average number of vehicles crossing the bridge per day. Bridges are sorted by ADT by default because high-traffic bridges in poor condition pose the greatest risk to the most people.

Yes. Use the search field above to find bridges by name, location, or features crossed. You can also combine the search with state and condition filters to narrow your results.