Total Bridges
4,277
Public highway bridges in Connecticut
State profile · Below national median SD
Connecticut bridge safety
Condition ratings, load ratings, and structural-deficiency data for every public highway bridge in Connecticut — drawn straight from the FHWA National Bridge Inventory.
- 4,277
- Public bridges
- 24.0%
- Good condition
- 4.0%
- Poor condition
- 4.0%
- Structurally deficient
Good Condition
24.0%
1,025 bridges rated 7-9
-26.0pp vs 50% benchmark
Poor Condition
4.0%
169 bridges rated 0-4
Structurally Deficient
4.0%
169 bridges flagged for repair priority
-3.0pp vs national avg 7.0%
Connecticut vs national bridge condition
Connecticut — Good condition share 24.0%
National avg
Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).
Connecticut — Structurally deficient share 13.2%
National avg
Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.
Condition Distribution
Bridge inventory deck-condition mix — Connecticut (FHWA NBI)
Connecticut vs nearby ranks
Adjacent states on the structurally deficient leaderboard (lower share = better)
States are ranked by share of bridges flagged structurally deficient — the FHWA classification for any span where deck, superstructure, or substructure carries a condition rating of 4 or below. Lower percentages indicate stronger maintenance funding and inspection follow-through. States here sit immediately above and below Connecticut on the same metric.
Bridges Needing Most Attention in Connecticut
Six lowest-condition bridges in Connecticut, ranked by composite NBI rating. Each is inspected at least every 24 months.
SHERMAN STREET
Structurally DeficientOver: YANTIC RIVER
1 MILE WEST ROUTE 2, New London, CT
Built 1920 Load: 3.9 t
RIVER BANK ROAD
Structurally DeficientOver: EAST BRANCH MIANUS RIVER
0.8 MI N OF ROUTE 15, Fairfield, CT
Built 1957 Load: 8.1 t ADT: 1,500
TRACY ROAD #1
PoorOver: KITT BROOK
0.5 MI SOUTH OF ROUTE 14, Windham, CT
Built 1928 Load: 8.7 t ADT: 176
ROUTE 136
PoorOver: SAUGATUCK RIVER
BETWEEN I-95 EXIT 17 & 18, Fairfield, CT
Built 1870 Load: 10.0 t ADT: 14,500
KENSINGTON ROAD
PoorOver: MATTABESSET RIVER
0.2 MI S OF ROUTE 372, Hartford, CT
Built 1958 Load: 10.0 t ADT: 4,200
SR 664
PoorOver: SNAKE MEADOW BROOK
3 MI NORTH OF ROUTE 14, Windham, CT
Built 1925 Load: 11.3 t ADT: 600
All Bridges in Connecticut
ROUTE 254
GoodOver: NORTHFIELD BROOK
.20 MI NORTH OF SR807 JCT, Litchfield, CT
Built 1970 Load: 97.2 t ADT: 5,800
WEST WOODS RD NO.2
GoodOver: GUINEA BROOK
0.2 M E OF S ELLSWORTH RD, Litchfield, CT
Built 2016 Load: 97.2 t ADT: 106
ROUTE 154
GoodOver: PLUM BANK CREEK
1.1 MI S OF US ROUTE 1, Middlesex, CT
Built 2021 Load: 97.2 t ADT: 3,600
NORTH ROAD EXTENS.
GoodOver: COLES BROOK
0.1 MI E OF I-91, Middlesex, CT
Built 2020 Load: 97.2 t ADT: 586
HEATHERWOOD DRIVE
GoodOver: BROOK
0.2 MI E OF SUMMER HILL, New Haven, CT
Built 2022 Load: 97.2 t ADT: 399
BEACON VALLEY ROAD
GoodOver: BEACON HILL BROOK
0.3 MI S OF ROUTE 8, New Haven, CT
Built 1933 Load: 97.2 t ADT: 2,600
AUTUMN RIDGE ROAD
GoodOver: RIGGS STREET BROOK
330 FT E OF RIGGS STREET, New Haven, CT
Built 1994 Load: 97.2 t ADT: 39
INTERSTATE-84 WB
GoodOver: RAILS TO TRAILS PATHWAY
0.5 MILE WEST OF EXIT 66, Tolland, CT
Built 2009 Load: 97.2 t ADT: 46,300
DURKEE ROAD
GoodOver: SCANTIC RIVER
1260 FT FR JCT ROUTE 83, Tolland, CT
Built 1973 Load: 97.2 t ADT: 303
ROUTE 12
GoodOver: MILL BROOK
1.6 MI S OF ROUTE 14A EB, Windham, CT
Built 1920 Load: 97.2 t ADT: 7,200
ROUTE 12
GoodOver: PROV & WORC RAILROAD
3.8 MILES N OF ROUTE 201, Windham, CT
Built 1977 Load: 97.2 t ADT: 3,600
ROUTE 106
GoodOver: FIVE MILE RIVER
475 FT S OF ROUTE 123, Fairfield, CT
Built 1989 Load: 98.8 t ADT: 6,600
INTERSTATE-95
GoodOver: ASH CREEK
1.7 MI SOUTH OF ROUTE 8, Fairfield, CT
Built 2003 Load: 99.9 t ADT: 115,900
ROUTE 104
GoodOver: E BRANCH OF MIANUS RIVER
3.3 MI N OF ROUTE 15, Fairfield, CT
Built 2019 Load: 99.9 t ADT: 6,900
SOUND BEACH AVENUE
GoodOver: CIDER MILL BROOK
0.4 MILE SOUTH OF I-95, Fairfield, CT
Built 2023 Load: 99.9 t ADT: 15,420
GRAYS BRIDGE ROAD
GoodOver: HOUSATONIC RR
2 MI WEST OF 133 & 25 INT, Fairfield, CT
Built 1979 Load: 99.9 t ADT: 9,095
VALLEY FORGE ROAD
GoodOver: SAUGATUCK RIVER
2 MILES EAST OF ROUTE 53, Fairfield, CT
Built 2011 Load: 99.9 t ADT: 610
W STARRS PLAIN RD
GoodOver: SAUGATUCK RIVER
550 FT E OF ROUTE 7, Fairfield, CT
Built 2007 Load: 99.9 t ADT: 985
ROUTE 8
GoodOver: BROOK
0.5 M N OF ROUTE 127, Fairfield, CT
Built 1982 Load: 99.9 t ADT: 69,900
ROUTE 3
GoodOver: KEENEY COVE
1.4 MI N OF I-91, Hartford, CT
Built 1959 Load: 99.9 t ADT: 58,000
INTERSTATE-91
GoodOver: MILL BROOK
0.5 MI NORTH OF ROUTE 305, Hartford, CT
Built 1954 Load: 99.9 t ADT: 132,500
ROUTE 2 WESTBOUND
GoodOver: LYMANS BROOK
.3 MI WEST OF SO MAIN ST, Hartford, CT
Built 1964 Load: 99.9 t ADT: 16,600
ROUTE 2
GoodOver: DARK HOLLOW BROOK
1.3 MI W OF MARLBORO TL, Hartford, CT
Built 1964 Load: 99.9 t ADT: 47,400
I384 RAMP & KEENEY
GoodOver: HOP BROOK
I-384 WB EXIT 2 OFF RAMP, Hartford, CT
Built 1968 Load: 99.9 t ADT: 10,500
ROUTE 83 & RAMP
GoodOver: HOP BROOK
300 FT NORTH OF I-384, Hartford, CT
Built 1970 Load: 99.9 t ADT: 11,600
NAUBUC AVENUE
GoodOver: SALMON BROOK
0.5 MI NORTH OF MAIN ST., Hartford, CT
Built 1970 Load: 99.9 t ADT: 2,000
THRONEBROOK DRIVE
GoodOver: HIGLEY BROOK
JCT OF HIGLEY RD, Hartford, CT
Built 1990 Load: 99.9 t ADT: 61
ROUTE 218
GoodOver: MEADOW BROOK
0.25 MILE WEST OF I-291, Hartford, CT
Built 1993 Load: 99.9 t ADT: 36,600
SR 536
GoodOver: QUINNIPIAC RIVER
0.2 MI W OF EAST JCT 372, Hartford, CT
Built 1969 Load: 99.9 t ADT: 11,300
MILLER POND ROAD
GoodOver: BUCKLAND POND
150 FT N OF BUSH HILL RD, Hartford, CT
Built 2005 Load: 99.9 t ADT: 215
E LITCHFIELD RD #2
GoodOver: SPRUCE BROOK
EAST LITCHFIELD FIREHOUSE, Litchfield, CT
Built 1956 Load: 99.9 t ADT: 244
SAW MILL ROAD
GoodOver: MARSHEPAUG RIVER
RIGHT ON MINOR RD GO 3 MI, Litchfield, CT
Built 1955 Load: 99.9 t ADT: 184
ROUTE 254
GoodOver: NORTHFIELD BROOK
05 NORTH OF MAIN STREET, Litchfield, CT
Built 1964 Load: 99.9 t ADT: 4,700
CARTER ROAD
GoodOver: KENT FALLS BROOK
1 MILE EAST OF ROUTE 7, Litchfield, CT
Built 2017 Load: 99.9 t ADT: 125
DIBBLE HILL ROAD
GoodOver: MILL BROOK
330 FT S. OF ROUTE 128, Litchfield, CT
Built 1970 Load: 99.9 t ADT: 129
INTERSTATE-91
GoodOver: FALLS BROOK
500-FT SO. OF SMITH ST BR, Middlesex, CT
Built 1965 Load: 99.9 t ADT: 108,700
GLENWOOD ROAD
GoodOver: INDIAN RIVER
1000 FT E OF ROUTE 81, Middlesex, CT
Built 1958 Load: 99.9 t ADT: 2,966
ROUTE 9
GoodOver: GREAT BROOK
0.4 MI N OF ROUTE 82, Middlesex, CT
Built 1967 Load: 99.9 t ADT: 31,100
INTERSTATE-95
GoodOver: FARM RIVER
0.3 MI N OF ROUTE 100, New Haven, CT
Built 1958 Load: 99.9 t ADT: 103,000
INTERSTATE-95
GoodOver: BRANFORD RIVER
0.6 MI S OF US ROUTE 1, New Haven, CT
Built 1958 Load: 99.9 t ADT: 70,500
ROUTE 15
GoodOver: WILMOT BROOK
1.0 MI S OF ROUTE 10, New Haven, CT
Built 1949 Load: 99.9 t ADT: 77,800
INTERSTATE-691
GoodOver: SODOM BROOK
0.4 MI E OF ROUTE 71, New Haven, CT
Built 1971 Load: 99.9 t ADT: 61,100
HARPERS FERRY ROAD
GoodOver: BEAVER POND BROOK
NORTH OF I-84 OVERPASS, New Haven, CT
Built 1952 Load: 99.9 t ADT: 12,900
SR 486 (AIRPORT RD
GoodOver: EIGHT MILE BROOK
100' EAST OF JCT RTE 188, New Haven, CT
Built 1975 Load: 99.9 t ADT: 3,000
PLANK ROAD EAST
GoodOver: BEAVER POND BROOK
175 FT W OF SCOTT ROAD, New Haven, CT
Built 2018 Load: 99.9 t ADT: 2,550
ROUTE 354
GoodOver: DEEP RIVER BROOK
3.5 MI W OF ROUTE 82, New London, CT
Built 1961 Load: 99.9 t ADT: 2,100
I-95 NB RAMP 277
GoodOver: STONY BROOK
I-95 NB EXIT NO. 91, New London, CT
Built 1964 Load: 99.9 t ADT: 4,900
INTERSTATE-95 NB
GoodOver: SHUNOCK RIVER
0.3 MI S OF ROUTE 49, New London, CT
Built 1964 Load: 99.9 t ADT: 13,600
INTERSTATE-95 SB
GoodOver: SHUNOCK RIVER
0.3 MI S OF ROUTE 49, New London, CT
Built 1970 Load: 99.9 t ADT: 13,200
OLD JEWETT CITY RD
GoodOver: BROAD BROOK
50' EAST OF KRUG ROAD, New London, CT
Built 1955 Load: 99.9 t ADT: 566
Showing 4,051-4,100 of 4,277 bridges
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges Editorial.
Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the FHWA National Bridge Inventory (NBI). A "structurally deficient" rating is a repair-priority signal, not a closure or unsafe-to-cross designation. Consult a qualified civil engineer before making decisions based on this data.
Understanding Bridge Conditions
How FHWA rates bridge condition on a 0-9 scale.
Check Your Daily Bridges
How to look up bridge condition data for bridges on your route.
Read our methodology — how this data is sourced, computed, and verified.
| Publisher | Kiznis Studio |
| Sources | FHWA National Bridge Inventory, public U.S. government datasets |