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
YALE AVENUE
UnknownOver: ROUTE 15
0.5 MI N OF ROUTE 68, New Haven, CT
Built 1947 ADT: 76,400
BALDWIN AVENUE
UnknownOver: ROUTE 15
.3 MILES NORTH I-691, New Haven, CT
Built 1946 ADT: 24,600
CHURCH ST SOUTH #1
UnknownOver: ROUTE 34
BTWN N & S FRONTAGE ROADS, New Haven, CT
Built 1960 ADT: 43,000
INTERSTATE-84 WB
UnknownOver: ROUTE 70
2.4 MI W OF I-691, New Haven, CT
Built 1961 ADT: 13,700
INTERSTATE-84 EB
UnknownOver: ROUTE 70
2.4 MI W OF I-691, New Haven, CT
Built 1961 ADT: 13,700
AMTRAK
UnknownOver: ROUTE 71
0.3 MI S OF US ROUTE 5, New Haven, CT
Built 1841 ADT: 10,700
BRANFORD STEAM RR
UnknownOver: ROUTE 80
0.1 MI W OF ROUTE 139, New Haven, CT
Built 2006 ADT: 19,100
ICHABOD ROAD
UnknownOver: INTERSTATE 84
BTWN I-84 EXITS 13 & 14, New Haven, CT
Built 1963 ADT: 75,100
INTERSTATE 84 EB
UnknownOver: ROUTE 172
AT EXIT 14, New Haven, CT
Built 1963 ADT: 8,200
INTERSTATE 84 WB
UnknownOver: ROUTE 172
EXIT 14, New Haven, CT
Built 1963 ADT: 8,200
BULLET HILL ROAD
UnknownOver: INTERSTATE 84 & RAMP 40
0.3 MI W OF US ROUTE 6, New Haven, CT
Built 1963 ADT: 66,400
INTERSTATE 84 EB
UnknownOver: US RTE 6, RTE 67, STREAM
INTERSTATE-84 EXIT 15, New Haven, CT
Built 1963 ADT: 15,800
INTERSTATE 84 WB
UnknownOver: US RTE 6, RTE 67, STREAM
I-84 WB EXIT NO. 15, New Haven, CT
Built 1963 ADT: 15,800
BUCKS HILL ROAD
UnknownOver: INTERSTATE 84
.7 MI WEST OF ROUTE 188, New Haven, CT
Built 1964 ADT: 72,100
INTERSTATE 84 EB
UnknownOver: ROUTE 188
EXIT 16 FROM I-84, New Haven, CT
Built 1964 ADT: 9,900
INTERSTATE 84 WB
UnknownOver: ROUTE 188
EXIT 16 FROM I-84, New Haven, CT
Built 1964 ADT: 9,900
BENSON ROAD
UnknownOver: INTERSTATE 84
0.8 MI EAST OF ROUTE 188, New Haven, CT
Built 1964 ADT: 71,100
CHRISTIAN ROAD
UnknownOver: INTERSTATE 84
1.4 MI EAST OF EXIT 16, New Haven, CT
Built 1964 ADT: 73,700
SOUTH STREET
UnknownOver: INTERSTATE 84
2.3 MI E SOUTHBURY TL, New Haven, CT
Built 1964 ADT: 71,100
INTERSTATE 84 EB
UnknownOver: ROUTE 188
.7 MI WEST OF ROUTE 63, New Haven, CT
Built 1964 ADT: 4,000
INTERSTATE 84 WB
UnknownOver: ROUTE 188
.7 MI W OF EXIT 17, New Haven, CT
Built 1964 ADT: 4,000
INTERSTATE 84 EB
UnknownOver: ROUTE 63
.5 MI S OF JCT 63 & 64, New Haven, CT
Built 1964 ADT: 13,200
INTERSTATE 84 WB
UnknownOver: ROUTE 63
1 MI S OF INT 63 & 64, New Haven, CT
Built 1964 ADT: 13,200
HARPERS FERRY ROAD
UnknownOver: INTERSTATE-84
I-84 EXIT NO. 25, New Haven, CT
Built 2018 ADT: 86,700
AUSTIN ROAD
UnknownOver: INTERSTATE 84
I-84 EB EXIT 25A, New Haven, CT
Built 1961 ADT: 84,100
MARION ROAD
UnknownOver: INTERSTATE 84
1.8 MI E ROUTE 70, New Haven, CT
Built 1961 ADT: 106,300
AMTRAK RAILROAD
UnknownOver: ROUTE 146
3.5 MILES S. GUILFORD TL, New Haven, CT
Built 1917 ADT: 1,400
AMTRAK RAILROAD
UnknownOver: ROUTE 146
100' S OF SAM HILL ROAD, New Haven, CT
Built 1900 ADT: 3,200
WHEELERS FARMS RD.
UnknownOver: SR 796
0.2 MI N OF I-95, New Haven, CT
Built 1941 ADT: 59,100
ROUTE 8 RAMP 079
UnknownOver: SR 846 NORTHBOUND
RTE 8 SOUTHBOUND EXIT 34, New Haven, CT
Built 1965 ADT: 5,300
ROUTE 8
UnknownOver: SR 846 NORTHBOUND
0.6 MILES NORTH OF I-84, New Haven, CT
Built 1965 ADT: 5,300
ROUTE 8 SOUTHBOUND
UnknownOver: ROUTE 73 WESTBOUND
1.1MI NO OF INTERSTATE-84, New Haven, CT
Built 1965 ADT: 13,800
SR 845 (CHASE PARK
UnknownOver: INTERSTATE 84 & RAMP 053
CHASE PRKWY AT I-84 EX 18, New Haven, CT
Built 1965 ADT: 79,200
ROUTE 15 NB
UnknownOver: INTERSTATE-91 & RAMP 145
2.8 MILES NORTH OF RTE 5, New Haven, CT
Built 1964 ADT: 2,700
I-91 RAMP 145
UnknownOver: ROUTE 15 SOUTHBOUND
0.8 MI S OF I-91, New Haven, CT
Built 1964 ADT: 35,900
EAST MAIN STREET
UnknownOver: I-91,ROUTE 15 & RAMP 147
ROUTE 15 & I91 MERGE, New Haven, CT
Built 1965 ADT: 93,100
I-91 TR 811
UnknownOver: ROUTE 15 SOUTHBOUND
.12M S OF JCT I-91SB, New Haven, CT
Built 1964 ADT: 24,900
ROUTE 15 NB
UnknownOver: INTERSTATE-91 & TR 3
ADJ TO EXIT#68 TO I691 WB, New Haven, CT
Built 1964 ADT: 47,800
INTERSTATE-691 EB
UnknownOver: ROUTE 15
02 MI WEST EXIT ROUTE 15, New Haven, CT
Built 1965 ADT: 23,900
INTERSTATE-691 WB
UnknownOver: ROUTE 15
2 MI WEST OF RTE 15 EXIT, New Haven, CT
Built 1965 ADT: 23,900
INTERSTATE-691 EB
UnknownOver: INTERSTATE-91
03 WEST OF ACCESS I-91NB, New Haven, CT
Built 1965 ADT: 81,400
INTERSTATE-691 WB
UnknownOver: INTERSTATE-91
500' EAST EXIT 10-691 WB., New Haven, CT
Built 1965 ADT: 81,400
INTERSTATE-691 EB
UnknownOver: INTERSTATE-691 TR 802
ROUTE 691 OVER TR 802, New Haven, CT
Built 1965 ADT: 18,200
INTERSTATE 691 EB
UnknownOver: I-91 TR 813
66 EASTBOUND OVER 91813, New Haven, CT
Built 1965 ADT: 5,000
I-91 TR 816
UnknownOver: ROUTE 66 WB
.25 MILES EAST OF EXIT 10, New Haven, CT
Built 1965 ADT: 15,200
ROUTE 68
UnknownOver: AMTRAK & US ROUTE 5
3 MILE WEST OF I-91 X-CRS, New Haven, CT
Built 1965 ADT: 22,800
PEDESTRIAN WALK
UnknownOver: INTERSTATE 691
0.21 MILES EAST OF RT 322, New Haven, CT
Built 1971 ADT: 66,600
ROUTE 71
UnknownOver: INTERSTATE-691
.5 MI WEST OF LEWIS AVE, New Haven, CT
Built 1971 ADT: 66,900
I-691 RAMP 009
UnknownOver: I-691RMP 008,COLUMBIA ST
OVER ENT RAMP FROM LEWIS, New Haven, CT
Built 1971 ADT: 8,100
INTERSTATE-691 EB
UnknownOver: US ROUTE 5
1.3 MI W OF I-91, New Haven, CT
Built 1971 ADT: 20,800
Showing 701-750 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 |