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 NORTHBOUND
UnknownOver: RTE 9 RAMP 043 & SR 901
END RT 99 AT RT 9, Middlesex, CT
Built 1968 ADT: 70
ROUTE 372
UnknownOver: ROUTE 9
ROUTE 9 EXIT NO. 19, Middlesex, CT
Built 1967 ADT: 56,400
ROUTE 3
UnknownOver: ROUTE 9
2.44 MI SOUTH OF OP I-91, Middlesex, CT
Built 1967 ADT: 75,400
EVERGREEN ROAD
UnknownOver: ROUTE 9
1.1 MI S OF JCT ROUTE I91, Middlesex, CT
Built 1967 ADT: 75,400
COLES ROAD
UnknownOver: ROUTE 9 SB & RAMP
0.9 MILE NORTH OF ROUTE 3, Middlesex, CT
Built 1967 ADT: 32,300
COLES ROAD
UnknownOver: ROUTE 9 NORTHBOUND
.42 MI SOUTH JCT RTE I91, Middlesex, CT
Built 1968 ADT: 35,200
NORTH ROAD
UnknownOver: ROUTE 9 SOUTHBOUND
OVERPASS ROUTE 9 SB, Middlesex, CT
Built 1988 ADT: 35,000
NORTH ROAD
UnknownOver: ROUTE 9 NB & RAMP
OVERPASS ROUTE 9 NB, Middlesex, CT
Built 1988 ADT: 35,000
I-91 NB TR 818
UnknownOver: INTERSTATE-91 NORTHBOUND
1.4 MI N OF ROUTE 373, Middlesex, CT
Built 1988 ADT: 49,100
Interstate 95
UnknownOver: ROUTE 9 NB & I-95 TR 816
1.4 MI N OF ROUTE 154, Middlesex, CT
Built 1992 ADT: 10,900
NOROTON AVENUE
UnknownOver: INTERSTATE 95
AT EXIT 10, New Haven, CT
Built 1958 ADT: 119,100
I-95 & I-95 RAMP 1
UnknownOver: I-95 RAMPS 115 & 117
1.7 MI N OF ROUTE 130, New Haven, CT
Built 1957 ADT: 1,600
PLAINS ROAD NO. 1
UnknownOver: INTERSTATE-95
0.9 MI S OF SR 796, New Haven, CT
Built 1957 ADT: 92,700
HIGH STREET
UnknownOver: I-95 & I-95 SB TR 807
0.1 MI S OF SR 796, New Haven, CT
Built 1957 ADT: 7,000
INTERSTATE-95
UnknownOver: SR 796 (MILFORD PARKWAY)
I-95 EXIT NO 38, New Haven, CT
Built 1957 ADT: 35,200
WEST RIVER STREET
UnknownOver: INTERSTATE-95
0.2 MI S OF ROUTE 121, New Haven, CT
Built 1958 ADT: 113,500
INTERSTATE-95
UnknownOver: ROUTE 121
0.8 MI S OF US ROUTE 1, New Haven, CT
Built 1958 ADT: 6,800
FOREST ROAD
UnknownOver: INTERSTATE-95
.2 MI S OF US ROUTE 1, New Haven, CT
Built 1958 ADT: 113,500
INTERSTATE-95
UnknownOver: US ROUTE 1
EXIT 39A & 39B I-95, New Haven, CT
Built 1958 ADT: 24,900
QUARRY ROAD
UnknownOver: INTERSTATE-95
1.7 MI N OF US ROUTE 1, New Haven, CT
Built 1958 ADT: 107,000
MARSH HILL ROAD
UnknownOver: I-95 & I-95 RAMP 352
0.8 MI S OF US1, New Haven, CT
Built 2001 ADT: 5,500
MORGAN LANE
UnknownOver: INTERSTATE 95
1.2 MI S OF ROUTE 162, New Haven, CT
Built 1957 ADT: 107,900
INTERSTATE 95
UnknownOver: ROUTE 162
I-95 AT EXIT 42, New Haven, CT
Built 2005 ADT: 18,800
STEVENS AVENUE
UnknownOver: INTERSTATE 95
0.7 MI N OF ROUTE 162, New Haven, CT
Built 1957 ADT: 114,100
INTERSTATE-95
UnknownOver: SR 745 (FIRST AVENUE)
0.9 MI S OF ROUTE 10, New Haven, CT
Built 1956 ADT: 16,600
INTERSTATE-95
UnknownOver: WEST RIVER & SR 745
0.5 MI S OF RT 10, New Haven, CT
Built 2018 ADT: 15,000
HOWARD AVENUE
UnknownOver: INTERSTATE-95
0.2 MI N OF ROUTE 10, New Haven, CT
Built 2010 ADT: 131,200
I-95 TR 812
UnknownOver: I95, I91,SR724EB,TR801
EXIT 47 OFF I-95 NB, New Haven, CT
Built 2011 ADT: 85,400
INTERSTATE 95
UnknownOver: I91NB,US1,SR724 & RAMPS
OVER WATER STREET, New Haven, CT
Built 2013 ADT: 4,200
SR 724 Westbound
UnknownOver: INTERSTATE 91 & US 1
0.2 MI N OF ROUTE 34, New Haven, CT
Built 2016 ADT: 9,800
INTERSTATE 95 NORT
UnknownOver: US1,QUINNIPIAC RV,P&W RR
OVER QUINNIPIAC RIVER, New Haven, CT
Built 2014 ADT: 12,400
INTERSTATE 95 SOUT
UnknownOver: US1,QUINNIPIAC RV,P&W RR
OVER QUINNIPIAC RIVER, New Haven, CT
Built 2015 ADT: 9,400
SR 724 Eastbound
UnknownOver: US1, Local Rds, P&W RR
AT WEST END OF Q-BRIDGE, New Haven, CT
Built 2011 ADT: 4,600
I-95 RAMP 164
UnknownOver: INTERSTATE-95
0.2 MI S OF ROUTE 337, New Haven, CT
Built 2006 ADT: 89,600
ROUTE 337
UnknownOver: INTERSTATE-95
1.7 MI N OF I-91, New Haven, CT
Built 2006 ADT: 89,600
US ROUTE 1 NB
UnknownOver: INTERSTATE-95
1.6 MI N OF I-91, New Haven, CT
Built 2006 ADT: 89,600
INTERSTATE-95
UnknownOver: US RT. 1 SB AND AMTRAK
0.3 MI S OF ROUTE 100, New Haven, CT
Built 1958 ADT: 28,620
INTERSTATE-95
UnknownOver: ROUTE 100
0.6 MI N OF US ROUTE 1, New Haven, CT
Built 1958 ADT: 15,000
PRIVATE ROAD
UnknownOver: INTERSTATE-95
0.4 MI N OF ROUTE 100, New Haven, CT
Built 2004 ADT: 84,500
HOSLEY AVENUE
UnknownOver: INTERSTATE-95
0.5 MI N OF US ROUTE 1, New Haven, CT
Built 1958 ADT: 84,500
INTERSTATE-95
UnknownOver: SR 794 WESTBOUND
1.0 MI W OF US ROUTE 1, New Haven, CT
Built 1958 ADT: 4,800
CHERRY HILL ROAD
UnknownOver: INTERSTATE-95
0.5 MI N OF US ROUTE 1, New Haven, CT
Built 1958 ADT: 74,800
TODDS HILL ROAD
UnknownOver: INTERSTATE-95 & RAMP 171
0.3 MI N OF US ROUTE 1, New Haven, CT
Built 2002 ADT: 6,100
INTERSTATE-95
UnknownOver: SR 740 (CEDAR STREET)
0.2 MI N OF US ROUTE 1, New Haven, CT
Built 1958 ADT: 13,800
FEATHERBED LANE
UnknownOver: INTERSTATE-95
0.3 MI S OF US ROUTE 1, New Haven, CT
Built 1958 ADT: 65,200
LEETES ISLAND ROAD
UnknownOver: INTERSTATE-95
0.3 MI S OF US ROUTE 1, New Haven, CT
Built 2003 ADT: 53,600
INTERSTATE-95
UnknownOver: US ROUTE 1
I-95 EXIT NO. 57, New Haven, CT
Built 1958 ADT: 14,200
INTERSTATE-95
UnknownOver: ROUTE 77
0.5 MI N OF US ROUTE 1, New Haven, CT
Built 1958 ADT: 13,500
INTERSTATE-95
UnknownOver: SR 718
1.3 MI N OF ROUTE 77, New Haven, CT
Built 1958 ADT: 10,900
TANNER MARSH ROAD
UnknownOver: INTERSTATE-95
400 FT N. OF US ROUTE 1, New Haven, CT
Built 1958 ADT: 54,500
Showing 601-650 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 |