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
WILDWOOD AVE. #1
UnknownOver: INTERSTATE-95
1.9 MI S OF ROUTE 79, New Haven, CT
Built 1957 ADT: 54,500
MUNGERTOWN ROAD
UnknownOver: INTERSTATE-95
0.5 MI N OF US ROUTE 1, New Haven, CT
Built 1957 ADT: 54,500
ROUTE 79
UnknownOver: INTERSTATE-95
I-95 EXIT NO. 61, New Haven, CT
Built 1957 ADT: 53,600
HORSEPOND ROAD
UnknownOver: INTERSTATE-95
0.9 MI N OF ROUTE 79, New Haven, CT
Built 1957 ADT: 53,200
NEW ROAD
UnknownOver: INTERSTATE-95
1.4 MI N OF ROUTE 79, New Haven, CT
Built 1957 ADT: 53,200
SSR 450
UnknownOver: INTERSTATE-95
1.2 MI N OF US ROUTE 1, New Haven, CT
Built 1957 ADT: 50,400
CANTERBURY TURNPKE
UnknownOver: INTERSTATE-395
.2 MI SOUTH OF ROUTE 97, New Haven, CT
Built 1958 ADT: 42,400
SR 796
UnknownOver: US ROUTE 1
0.4 MI S OF I95, New Haven, CT
Built 1941 ADT: 17,300
AMTRAK NE CORRIDOR
UnknownOver: US ROUTE 1
200 FT N OF ROUTE 142, New Haven, CT
Built 1928 ADT: 25,300
PRIVATE RAILROAD
UnknownOver: US ROUTE 1
0.3 MI N OF ROUTE 139, New Haven, CT
Built 1913 ADT: 7,500
AMTRAK NE CORRIDOR
UnknownOver: US ROUTE 1
1.4 MI EAST OF RTE 146, New Haven, CT
Built 1926 ADT: 8,900
ROUTE 15
UnknownOver: US ROUTE 5
1.23 MI SOUTH OF MERIDEN, New Haven, CT
Built 1998 ADT: 24,700
ROUTE 8
UnknownOver: ROUTE 34 & RR Drive
ROUTE 8, EXIT 15, New Haven, CT
Built 1951 ADT: 42,300
ROUTE 8
UnknownOver: SR 727 SB PERSHING DRIVE
0.6 MI N OF ROUTE 34, New Haven, CT
Built 1951 ADT: 9,200
HAWKINS STREET
UnknownOver: ROUTE 8
0.9 MILES NORTH ROUTE 34, New Haven, CT
Built 1952 ADT: 66,600
BLUFF STREET
UnknownOver: ROUTE 8
1.3 MI N OF ROUTE 34, New Haven, CT
Built 1959 ADT: 65,000
ROUTE 334
UnknownOver: ROUTE 8
2.9 MI NORTH OF ROUTE 34, New Haven, CT
Built 1959 ADT: 55,300
ROUTE 8
UnknownOver: SR 728 (DERBY AVENUE)
.1 MI N OF EXIT 21 RTE 8N, New Haven, CT
Built 1961 ADT: 3,100
ROUTE 8
UnknownOver: RTE 313 & NAUGATUCK RIV
0.3 MI S OF ROUTE 67, New Haven, CT
Built 1961 ADT: 3,000
ROUTE 8
UnknownOver: RTE 67,METRO N & RAMP 49
ROUTE 8 AT EXIT 22, New Haven, CT
Built 1962 ADT: 2,700
ROUTE 8
UnknownOver: ROUTE 63
1.2 MI NO BEACON FALLS TL, New Haven, CT
Built 1960 ADT: 12,400
ROUTE 8
UnknownOver: SR 709 SOUTH MAIN STREET
AT EXIT 26 ROUTE 8 SB., New Haven, CT
Built 1960 ADT: 5,000
ROUTE 8
UnknownOver: MAPLE & OAK ST, RAMP 063
ROUTE 8 EXIT 27, New Haven, CT
Built 1960 ADT: 3,300
ROUTE 8
UnknownOver: ROUTE 8 RAMP 064
ROUTE 8 EXIT NO. 27, New Haven, CT
Built 1960 ADT: 1,100
ROUTE 8
UnknownOver: ROUTE 8 SB ON RAMP
AT EXIT 28, New Haven, CT
Built 1960 ADT: 4,900
ROUTE 68
UnknownOver: NAUG RV,RTE 8,MNRR,SR710
RT 68 OVER RTE 8,METRO N., New Haven, CT
Built 1960 ADT: 51,400
ROUTE 8
UnknownOver: ROUTE 8 RAMP 069
EXIT 28 ROUTE 8 SB, New Haven, CT
Built 1960 ADT: 4,400
ROUTE 15
UnknownOver: ROUTE 10
ROUTE 15 EXIT NO. 60, New Haven, CT
Built 1948 ADT: 13,500
FARMINGTON CANAL
UnknownOver: ROUTE 10
0.9 MI N OF ROUTE 15, New Haven, CT
Built 1928 ADT: 18,400
ROUTE 15
UnknownOver: SR 707(WHITNEY AVE.)
1.3 MI EAST OF ROUTE 10, New Haven, CT
Built 1946 ADT: 13,500
ROUTE 15
UnknownOver: SR 796
0.8 MI N OF ROUTE 110, New Haven, CT
Built 1940 ADT: 28,700
DERBY MILFORD ROAD
UnknownOver: ROUTE 15
3.7 MI N. OF ROUTE 110, New Haven, CT
Built 1941 ADT: 95,800
ROUTE 121
UnknownOver: ROUTE 15
1.3 MI S OF ROUTE 34, New Haven, CT
Built 1941 ADT: 94,600
ROUTE 34
UnknownOver: ROUTE 15
ROUTE 15 EXIT 57/58, New Haven, CT
Built 1941 ADT: 66,100
ROUTE 114
UnknownOver: ROUTE 15
0.9 MI N OF ROUTE 34, New Haven, CT
Built 1949 ADT: 72,300
JOHNSON ROAD
UnknownOver: ROUTE 15
1.1 MI N OF ROUTE 114, New Haven, CT
Built 1949 ADT: 72,300
ROUTE 15
UnknownOver: ROUTE 243
1 MILE WEST OF ROUTE 63, New Haven, CT
Built 1948 ADT: 8,200
ROUTE 15
UnknownOver: ROUTE 63
3.7 MI W. OF ROUTE 10, New Haven, CT
Built 1948 ADT: 11,600
ROUTE 15
UnknownOver: ROUTE 69 & WEST RIVER
.3MI NO OF RT 63 & 69 INT, New Haven, CT
Built 1949 ADT: 15,300
WOODIN STREET
UnknownOver: ROUTE 15
2.3 MI S OF ROUTE 10, New Haven, CT
Built 1949 ADT: 79,200
WINTERGREEN AVENUE
UnknownOver: ROUTE 15
1.5 MI SOUTH OF RTE 10, New Haven, CT
Built 1949 ADT: 73,900
BENHAM STREET
UnknownOver: ROUTE 15
0.3 MI S OF ROUTE 10, New Haven, CT
Built 1949 ADT: 77,800
SKIFF STREET
UnknownOver: ROUTE 15
0.8 MI N OF ROUTE 10, New Haven, CT
Built 1948 ADT: 72,600
ROUTE 15
UnknownOver: SR 717 (DIXWELL AVE)
0.7 MI S OF ROUTE 40, New Haven, CT
Built 1946 ADT: 14,000
RIDGE ROAD # 1
UnknownOver: ROUTE 15
0.5 MI SOUTH OF ROUTE 22, New Haven, CT
Built 1949 ADT: 70,400
HARTFORD TPKE #1
UnknownOver: ROUTE 15
1 TENTH SOUTH OF ROUTE 22, New Haven, CT
Built 1947 ADT: 70,400
ROUTE 22
UnknownOver: ROUTE 15
AT EXIT 63 OF ROUTE 15, New Haven, CT
Built 1947 ADT: 67,800
UPPER STATE STREET
UnknownOver: ROUTE 15
.3 MILES NORTH ROUTE 22, New Haven, CT
Built 1947 ADT: 68,200
ROUTE 150
UnknownOver: ROUTE 15
AT EXIT 65 OF ROUTE 15 NB, New Haven, CT
Built 1947 ADT: 61,100
ROUTE 15
UnknownOver: ROUTE 68
0.3 MI W OF US ROUTE 5, New Haven, CT
Built 1946 ADT: 19,400
Showing 651-700 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 |