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
CHURCH STREET
FairOver: CHURCH STREET TUNNEL
100' SOUTH OF GEORGE ST, New Haven, CT
Built 1963 Load: 44.7 t ADT: 15,300
ROUTE 197
FairOver: MUDDY BROOK
.5 MI EAST OF RTE 169, Windham, CT
Built 1987 Load: 44.7 t ADT: 2,600
CANAAN MOUNTAIN RD
FairOver: WANGUM LAKE BROOK
NORTH OF UNDER MTN RD, Litchfield, CT
Built 1988 Load: 44.8 t ADT: 125
BEACHSIDE AVENUE
FairOver: SASCO BROOK
AT FAIRFIELD TOWN LINE, Fairfield, CT
Built 1989 Load: 44.9 t ADT: 3,100
ROUTE 15
FairOver: METRO-NORTH RAILROAD
0.2 MI N OF US ROUTE 7, Fairfield, CT
Built 1937 Load: 45.0 t ADT: 54,320
ROUTE 15
FairOver: CONVERSE POND BROOK
0.3 MI N OF EXIT NO. 28, Fairfield, CT
Built 1934 Load: 45.0 t ADT: 59,020
OLD TOWN ROAD
FairOver: PEQUONNOCK RV & TRAIL
150 FT W OF ROUTE 127, Fairfield, CT
Built 1971 Load: 45.0 t ADT: 15,050
GRASMERE AVENUE
FairOver: METRO NORTH RAILROAD
JCT KINGS HWY EAST, Fairfield, CT
Built 1900 Load: 45.0 t ADT: 4,700
ROUTE 71
FairOver: BASS BROOK
1 MI SO. OF FARMINGTON TL, Hartford, CT
Built 1958 Load: 45.0 t ADT: 9,300
VINEYARD ROAD
FairOver: BURLINGTON BROOK
300' WEST OF RTE 4, Hartford, CT
Built 2016 Load: 45.0 t ADT: 1,323
NEW STREET
FairOver: STILL RIVER
200 FEET EAST OF SR 800, Litchfield, CT
Built 1970 Load: 45.0 t ADT: 1,060
INTERSTATE-95
FairOver: COW HILL ROAD
0.4 MI S OF ROUTE 81, Middlesex, CT
Built 1957 Load: 45.0 t ADT: 52,200
INTERSTATE-95
FairOver: MILL PLAIN ROAD
0.1 MI N OF US ROUTE 1, New Haven, CT
Built 1958 Load: 45.0 t ADT: 70,500
GRAND AVENUE
FairOver: METRO NORTH RAILROAD
50' EAST OF STATE STREET, New Haven, CT
Built 1933 Load: 45.0 t ADT: 9,800
INTERSTATE-395
FairOver: OTROBANDO AVENUE
.3 MI N OF ROUTES 2 & 32, New London, CT
Built 1958 Load: 45.0 t ADT: 37,800
STANTON ROAD
FairOver: YANTIC RIVER
600 FT N OF ROUTE 608, New London, CT
Built 1957 Load: 45.0 t ADT: 401
ROUTE 200
FairOver: ABANDONED RAILROAD
.4 E OF BUCKLEY HILL RD, Windham, CT
Built 1960 Load: 45.0 t ADT: 4,800
ROUTE 169
FairOver: BLACKWELL BROOK
5 MILES NORTH OF ROUTE 14, Windham, CT
Built 1927 Load: 45.3 t ADT: 2,300
US ROUTE 1
FairOver: MILL RIVER
NEAR SASCO HILL ROAD, Fairfield, CT
Built 1990 Load: 45.4 t ADT: 13,900
ROUTE 179
FairOver: MILL RACE
2 MILES NORTH OF ROUTE 4, Hartford, CT
Built 1959 Load: 45.4 t ADT: 10,400
I-84 RAMP 115
FairOver: AMTRAK AND PARKING LOT
.33 MI N OF JCT SR 503 WB, Hartford, CT
Built 1965 Load: 45.4 t ADT: 9,500
INTERSTATE-84 WB
FairOver: PARKING LOT
.27 MI WEST SIGOURNEY ST, Hartford, CT
Built 1969 Load: 45.4 t ADT: 64,800
NEW STATE ROAD
FairOver: HOCKANUM RIVER
0.5 MI NORTH OF RTE 6/44, Hartford, CT
Built 2004 Load: 45.4 t ADT: 5,300
ROUTE 218
FairOver: WASH BROOK
100 FT EAST OF ROUTE 189, Hartford, CT
Built 1982 Load: 45.4 t ADT: 25,800
ROUTE 4
FairOver: LEADMINE BROOK
0.1 MILE EAST OF RTE. 118, Litchfield, CT
Built 1927 Load: 45.4 t ADT: 13,100
U.S. ROUTE 7
FairOver: GUNN BROOK
0.10 MI SOUTH OF ROUTE 45, Litchfield, CT
Built 1924 Load: 45.4 t ADT: 2,100
US ROUTE 44
FairOver: MILL BROOK
1.3 MI EAST COLEBROOK TL, Litchfield, CT
Built 1934 Load: 45.4 t ADT: 5,200
ROUTE 8 NORTHBOUND
FairOver: ECHO LAKE ROAD
1.9 MI NORTH WATERBURY LN, Litchfield, CT
Built 1964 Load: 45.4 t ADT: 15,100
US ROUTE 5
FairOver: QUINNIPIAC RIVER
.2 MI S OF INTERSTATE-91, New Haven, CT
Built 1973 Load: 45.4 t ADT: 19,200
I-91 NB RAMP 138
FairOver: MILL RIVER
I-91 NB EXIT NO. 5, New Haven, CT
Built 1965 Load: 45.4 t ADT: 11,300
INTERSTATE-91 SB
FairOver: AMTRAK RAILROAD
.14 MILES S OF ROUTE 22, New Haven, CT
Built 1965 Load: 45.4 t ADT: 45,400
ROUTE 69
FairOver: STREAM
0.6 MI. SO. OF WOLCOTT TL, New Haven, CT
Built 1969 Load: 45.4 t ADT: 23,400
CAMP STREET #1
FairOver: HARBOR BROOK
0.3 MI W OF US ROUTE 5, New Haven, CT
Built 1895 Load: 45.4 t ADT: 2,870
LOPUS ROAD
FairOver: METRO-NORTH RAILROAD
.4 MILES S OF MAIN STREET, New Haven, CT
Built 1991 Load: 45.4 t ADT: 500
ROUTE 68
FairOver: FULLING MILL BROOK
1.3 MI E OF ROUTE 63, New Haven, CT
Built 1933 Load: 45.5 t ADT: 12,300
OLD HARTFORD ROAD
FairOver: JEREMY RIVER
0.5 MI EAST OF ROUTE 149, New London, CT
Built 1998 Load: 45.5 t ADT: 1,600
INTERSTATE-95
FairOver: BRENTWOOD AVENUE
0.3 MI N OF US ROUTE 1, Fairfield, CT
Built 1958 Load: 45.7 t ADT: 120,200
INTERSTATE 84 EAST
FairOver: HRRC & BOULEVARD ROAD
1.5 MI WEST OF SR 816, Fairfield, CT
Built 1962 Load: 45.7 t ADT: 38,000
US ROUTE 7 SB
FairOver: STILL RIV & GRAYS BR RD
0.6 MI NO OF FEDERAL RD, Fairfield, CT
Built 1976 Load: 45.7 t ADT: 14,700
FARRELL ROAD
FairOver: HOUSATONIC RR
N OF OLD HAWLEYVILLE RD, Fairfield, CT
Built 1912 Load: 45.7 t ADT: 333
KENOSIA AVENUE
FairOver: MILL PLAIN SWAMP
0.4 MI S OF US ROUTE 6, Fairfield, CT
Built 1930 Load: 45.7 t ADT: 4,900
INTERSTATE 691 EAS
FairOver: PRATT STREET
0.3 MI W OF ROUTE 322, Hartford, CT
Built 1984 Load: 45.7 t ADT: 30,700
ROUTE 8 NORTHBOUND
FairOver: CAMPVILLE ROAD
ROUTE 8 EXT 41, Litchfield, CT
Built 1960 Load: 45.7 t ADT: 12,200
ROUTE 8 SOUTHBOUND
FairOver: NAUGATUCK RAILROAD CO.
0.3 MI N OF ROUTE 222, Litchfield, CT
Built 1966 Load: 45.7 t ADT: 10,700
I-91 SB & RAMP C
FairOver: WILLOW STREET
330 FT W OF US RT 5, New Haven, CT
Built 1965 Load: 45.7 t ADT: 67,400
WEST STREET
FairOver: MIDDLE RIVER
0.2 MILE SOUTH OF RTE 190, Tolland, CT
Built 1956 Load: 45.7 t ADT: 1,600
SR 527
FairOver: HOCKANUM RIVER
0.1 MILE SOUTH OF RTE 74, Tolland, CT
Built 1990 Load: 45.7 t ADT: 7,200
PROSPECT STREET
FairOver: HOP BROOK
100 FT S OF HARTFORD ROAD, Hartford, CT
Built 1997 Load: 45.8 t ADT: 1,210
CHAPEL STREET
FairOver: PROV & WORC RAILROAD
100FT EAST OF EAST STREET, New Haven, CT
Built 1912 Load: 45.8 t ADT: 8,452
ROUTE 8 NORTHBOUND
FairOver: CATHERINE ST & SB MAIN
1.3 MI N OF I-95, Fairfield, CT
Built 1970 Load: 46.0 t ADT: 88,000
Showing 2,351-2,400 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 |