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 9
FairOver: WILLOW BROOK
0.4 MILE NORTH OF EXIT 23, Hartford, CT
Built 1962 Load: 99.9 t ADT: 91,800
ROUTE 15
FairOver: PUMPING STATION OUTLET
0.3 MI N OF ROUTE 99, Hartford, CT
Built 1941 Load: 99.9 t ADT: 52,600
INTERSTATE-84
FairOver: EIGHT MILE RIVER
1.0 MI E OF ROUTE 229, Hartford, CT
Built 1963 Load: 99.9 t ADT: 99,300
INTERSTATE-84 WB
FairOver: QUINNIPIAC RIVER
.30 MI. WEST OF EXIT 32, Hartford, CT
Built 1963 Load: 99.9 t ADT: 44,700
INTERSTATE-84 EB
FairOver: QUINNIPIAC RIVER
.3 MI WEST OF EXIT 32, Hartford, CT
Built 1963 Load: 99.9 t ADT: 40,800
INTERSTATE-91
FairOver: GOFF BROOK
200' NO. OF ROCKY HILL TL, Hartford, CT
Built 1964 Load: 99.9 t ADT: 143,400
INTERSTATE-91
FairOver: BEAVER BROOK
0.5 MI N OF ROCKY HILL TL, Hartford, CT
Built 1964 Load: 99.9 t ADT: 130,000
ROUTE 173
FairOver: PIPER BROOK
1.3 MI NORTH OF ROUTE 175, Hartford, CT
Built 1937 Load: 99.9 t ADT: 14,100
SR 501
FairOver: ROCKLEDGE BROOK
0.6 MILE SOUTH OF PARK RD, Hartford, CT
Built 1965 Load: 99.9 t ADT: 27,200
ROUTE 2
FairOver: DARK HOLLOW BROOK
0.9 MI EAST OF WASSUC RD, Hartford, CT
Built 1964 Load: 99.9 t ADT: 45,500
INTERSTATE-84
FairOver: HOCKANUM RIVER
0.2 MI EAST OF EXIT 56, Hartford, CT
Built 1964 Load: 99.9 t ADT: 112,400
ROUTE 72 & RAMPS
FairOver: QUINNIPIAC RIVER
1.80 MILE SOUTH ROUTE 177, Hartford, CT
Built 1969 Load: 99.9 t ADT: 57,300
VACANT RTE. 9 RAMP
FairOver: INTERSTATE-84
THIRD LEVEL-EXIT 39A, Hartford, CT
Built 1969 Load: 99.9 t
INTERSTATE-384
FairOver: GLOBE HOLLOW BROOK
.24 MI WEST OF ROUTE 83, Hartford, CT
Built 1971 Load: 99.9 t ADT: 53,700
REV MOODY OVERPASS
FairOver: CT SOUTHERN RAILROAD
0.4 MI SOUTH OF WESTON ST, Hartford, CT
Built 1983 Load: 99.9 t ADT: 7,344
ROUTE 9
FairOver: PIPER BROOK
.1 MI N OF NEW BRITAIN TL, Hartford, CT
Built 1985 Load: 99.9 t ADT: 73,800
ROUTE 9 & BUSWAY
FairOver: BASS BROOK
.13 MI SOUTH OF ROUTE 175, Hartford, CT
Built 1985 Load: 99.9 t ADT: 73,800
ROUTE 9 RAMP 058
FairOver: BASS BROOK
SB ON RAMP FROM ROUTE 175, Hartford, CT
Built 1985 Load: 99.9 t ADT: 10,600
ROUTE 9 AND RAMP
FairOver: SPRUCE BROOK
400' S OF RTE 372 O/PASS, Hartford, CT
Built 1988 Load: 99.9 t ADT: 61,500
I-91 RAMPS F & H
FairOver: MEADOW BROOK
I-91 NORTH EXIT 34, Hartford, CT
Built 1990 Load: 99.9 t ADT: 4,100
I-291 & KING ST.
FairOver: PODUNK RIVER
0.25 MILES WEST OF U.S. 5, Hartford, CT
Built 1958 Load: 99.9 t ADT: 43,900
WOODFIELD CROSSING
FairOver: BROOK
0.2 MI S OF FRANCE STREET, Hartford, CT
Built 1980 Load: 99.9 t ADT: 1,362
ROUTE 9
FairOver: BASS BROOK
0.1 MI N OF ROUTE 175, Hartford, CT
Built 1991 Load: 99.9 t ADT: 48,700
I-84, AMTRAK, CTFA
FairOver: NO. BRANCH OF PARK RIVER
FARMINGTON AVE - JCT BOX, Hartford, CT
Built 1964 Load: 99.9 t ADT: 129,200
NORTHWOODS ROAD
FairOver: EAST BRANCH SALMON BROOK
100' EAST OF RTE.189, Hartford, CT
Built 1982 Load: 99.9 t ADT: 141
ROUTE 4
FairOver: GUINEA BROOK
.5 MI WEST OF JCT RTE 7, Litchfield, CT
Built 1934 Load: 99.9 t ADT: 2,400
US ROUTE 202
FairOver: BAKERSVILLE BROOK
1.4 MI N OF TORRINGTON TL, Litchfield, CT
Built 1959 Load: 99.9 t ADT: 13,500
U.S. ROUTE 44
FairOver: MORGAN BROOK
150' EAST OF DEW ROAD, Litchfield, CT
Built 1947 Load: 99.9 t ADT: 13,900
ROUTE 132
FairOver: WEEKEEPEEMEE RIVER
1.1 MILE SOUTH OF RTE 61, Litchfield, CT
Built 1941 Load: 99.9 t ADT: 1,200
WEST HYERDALE DR
FairOver: MARSHEPAUG RIVER
WEST OF CANTERBURY CT, Litchfield, CT
Built 1970 Load: 99.9 t ADT: 627
ROUTE 199
FairOver: BATTLE SWAMP BROOK
1.8 MILE WEST OF ROUTE 67, Litchfield, CT
Built 1989 Load: 99.9 t ADT: 2,000
ROUTES 9 & 17
FairOver: SUMNER BROOK
JCT OF RTES 9 & 17, Middlesex, CT
Built 1953 Load: 99.9 t ADT: 41,400
ROUTE 17
FairOver: SUMNER BROOK
0.4 MI S OF ROUTE 9, Middlesex, CT
Built 1955 Load: 99.9 t ADT: 4,600
SR 609
FairOver: MOODUS RIVER
0.2 MI WEST OF ROUTE 149, Middlesex, CT
Built 1930 Load: 99.9 t ADT: 1,900
ROUTE 151
FairOver: PINE BROOK
0.8 MI N OF ROUTE 196, Middlesex, CT
Built 1930 Load: 99.9 t ADT: 1,800
ROUTE 9 RAMP 028
FairOver: PONSET BROOK
ROUTE 9 NB EXIT 9 ON RAMP, Middlesex, CT
Built 1965 Load: 99.9 t ADT: 3,500
ROUTE 9
FairOver: FALLS RIVER
0.8 MI S OF ROUTE 154, Middlesex, CT
Built 1967 Load: 99.9 t ADT: 34,000
ROUTE 66
FairOver: ABANDONED RR & DRAINAGE
0.1 MI E OF ROUTE 16, Middlesex, CT
Built 1977 Load: 99.9 t ADT: 8,600
RIDGE ROAD
FairOver: SUMNER BROOK
290 FT W OF MAIN ST EXT, Middlesex, CT
Built 1938 Load: 99.9 t ADT: 3,735
DENNISON ROAD
FairOver: FALLS RIVER
0.2 MI N OF ROUTE 154, Middlesex, CT
Built 1964 Load: 99.9 t ADT: 1,314
INTERSTATE-95
FairOver: WEPAWAUG RIVER
325 FT S OF ROUTE 121, New Haven, CT
Built 1958 Load: 99.9 t ADT: 113,500
ROUTE 15
FairOver: BALDWINS POND
OVER BALDWINS POND, New Haven, CT
Built 1946 Load: 99.9 t ADT: 24,600
ROUTE 34
FairOver: WEPAWAUG RIVER
0.3 MI E OF ROUTE 15, New Haven, CT
Built 1855 Load: 99.9 t ADT: 34,600
INTERSTATE-91&RT15
FairOver: WILLOW BROOK
.12 MI NORTH OF E MAIN ST, New Haven, CT
Built 1964 Load: 99.9 t ADT: 147,500
INTERSTATE-91
FairOver: SPOON SHOP BROOK
I-91NB,200' S. OF EXIT 18, New Haven, CT
Built 1965 Load: 99.9 t ADT: 91,200
INTERSTATE-691 EB
FairOver: SPOON SHOP BROOK
0.2 MI W OF ROUTE 66, New Haven, CT
Built 1965 Load: 99.9 t ADT: 23,300
INTERSTATE-691 WB
FairOver: SPOON SHOP BROOK
0.2 MI WEST OF ROUTE 66, New Haven, CT
Built 1965 Load: 99.9 t ADT: 23,200
INTERSTATE-691
FairOver: HARBOR BROOK
ENTER @ BUNKER AVE PARK, New Haven, CT
Built 1971 Load: 99.9 t ADT: 82,700
ROUTE 15
FairOver: MILL BROOK
1.0 MI N OF ROUTE 10, New Haven, CT
Built 1943 Load: 99.9 t ADT: 72,600
INTERSTATE-691 EB
FairOver: WILLOW BROOK
315 FT E OF ROUTE 15, New Haven, CT
Built 1965 Load: 99.9 t ADT: 22,500
Showing 3,001-3,050 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 |