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
US ROUTE 7 SB
FairOver: HRRC,STILL RV, MALL ACC.
SOUTH OF I-84 EXIT 3, Fairfield, CT
Built 1962 Load: 31.4 t ADT: 26,600
ROUTE 177
FairOver: PEQUABUCK RIVER
.39 MI SOUTH OF ROUTE 72, Hartford, CT
Built 1947 Load: 31.4 t ADT: 11,900
ROUTE 8 NORTHBOUND
FairOver: NAUGATUCK RIVER & R.R.
.1 MI NORTH ROUTE 109, Litchfield, CT
Built 1966 Load: 31.4 t ADT: 14,800
WALL STREET
FairOver: E BRANCH NAUGATUCK RIVER
100' NORTH OF ROUTE 202, Litchfield, CT
Built 1961 Load: 31.4 t ADT: 4,000
ROUTE 9 NORTHBOUND
FairOver: BEAVER MEADOW ROAD
ROUTE 9 EXIT NO. 8, Middlesex, CT
Built 1966 Load: 31.4 t ADT: 15,100
SR 853
FairOver: NAUGATUCK RIVER,S DIV ST
0.1 MI W OF ROUTE 115, New Haven, CT
Built 2004 Load: 31.4 t ADT: 14,700
INTERSTATE-95 NB
FairOver: COW HILL ROAD
0.8 MI SOUTH OF ROUTE 27, New London, CT
Built 1964 Load: 31.4 t ADT: 26,200
ROUTE 207
FairOver: RAYMOND BROOK
0.2 MI EAST OF JCT RTE 85, Tolland, CT
Built 1940 Load: 31.4 t ADT: 2,400
FLANDERS RIVER RD
FairOver: HOP RIVER
300 FT NORTH OF RT 66, Tolland, CT
Built 1910 Load: 31.4 t ADT: 769
ROUTE 11 NB
FairOver: WITCH MEADOW ROAD
3.0 MI N OF ROUTE 82, New London, CT
Built 1971 Load: 31.6 t ADT: 4,550
ROUTE 177
FairOver: PAN AM RAILROAD
.4 MI SOUTH OF ROUTE 72, Hartford, CT
Built 1961 Load: 31.7 t ADT: 11,100
ESSEX STREET
FairOver: PRATT COVE
0.5 MI E OF ROUTE 154, Middlesex, CT
Built 1999 Load: 31.7 t ADT: 1,400
ROUTE 15 NB
FairOver: WINTERGREEN AVE & BROOK
0.7 MI N OF ROUTE 69, New Haven, CT
Built 1949 Load: 31.7 t ADT: 39,400
ROUTE 15 SB
FairOver: WINTERGREEN AVE & BROOK
0.7 MI N OF ROUTE 69, New Haven, CT
Built 1949 Load: 31.7 t ADT: 39,960
INTERSTATE-84
FairOver: WILLIMANTIC RIVER
0.1 MILE EAST TOLLAND TL, Tolland, CT
Built 1953 Load: 31.7 t ADT: 58,100
MANSFIELD ROAD
FairOver: NATCHAUG RIVER
0.3 MILE WEST OF US RTE 6, Windham, CT
Built 1995 Load: 31.7 t ADT: 268
U.S. ROUTE 7 SB
FairOver: NORWALK RIVER
1.3 MILE NORTH OF I-95, Fairfield, CT
Built 1970 Load: 31.8 t ADT: 27,900
ROUTE 372
FairOver: MATTABESSET RIVER
28 FT WEST OF CROMWELL TL, Hartford, CT
Built 1933 Load: 31.8 t ADT: 11,000
INTERSTATE-91 SB
FairOver: ELM STREET
0.7 MILE SOUTH OF ROUTE 3, Hartford, CT
Built 1964 Load: 31.8 t ADT: 75,450
ROUTE 191
FairOver: BROAD BROOK
1.4 MILES SOUTH OF RT 140, Hartford, CT
Built 1989 Load: 31.8 t ADT: 2,000
STRICKLAND ROAD
FairOver: COGINCHAUG RIVER
0.3 MI E OF RTE 157, Middlesex, CT
Built 1936 Load: 31.8 t ADT: 1,234
ROUTE 2 EASTBOUND
FairOver: WALL STREET
0.4 MILE WEST OF ROUTE 16, New London, CT
Built 1966 Load: 31.8 t ADT: 14,100
INTERSTATE-395
FairOver: PLAINFIELD ROAD
.5 MI SOUTH OF ROUTE 14, Windham, CT
Built 1958 Load: 31.8 t ADT: 30,400
ROUTE 8SB OFF RAMP
FairOver: NORTH WASHINGTON AVENUE
0.1 MI S OF EXIT 3, Fairfield, CT
Built 1969 Load: 31.9 t ADT: 8,900
ROUTE 15
FairOver: PERRY AVENUE
0.2 MI S OF US ROUTE 7, Fairfield, CT
Built 1936 Load: 32.1 t ADT: 65,320
ROUTE 108
FairOver: FARMILL RIVER
3.4 MI N. OF ROUTE 15, Fairfield, CT
Built 1932 Load: 32.1 t ADT: 3,000
U.S. ROUTE 1
FairOver: ROOSTER RIVER
0.5 MI W OF ROUTE 59, Fairfield, CT
Built 1963 Load: 32.1 t ADT: 12,200
ROUTE 20
FairOver: WEST BRANCH SALMON BROOK
0.4 MI WEST OF ROUTE 219, Hartford, CT
Built 1934 Load: 32.1 t ADT: 1,900
ROUTE 47
FairOver: BEE BROOK
150 FT SOUTH OF ROUTE 202, Litchfield, CT
Built 1959 Load: 32.1 t ADT: 1,700
DUCK POND ROAD
FairOver: BUTTERNUT BROOK
NORTH OF BRUSH HILL ROAD, Litchfield, CT
Built 1992 Load: 32.1 t ADT: 66
SR 625
FairOver: AMTRAK RAILROAD
0.2 MI N OF US ROUTE 1, Middlesex, CT
Built 1890 Load: 32.1 t ADT: 3,700
ROUTE 15
FairOver: MILLER AVENUE
.8 MI N WALFRD & MERDN TL, New Haven, CT
Built 1946 Load: 32.1 t ADT: 71,100
ROUTE 22
FairOver: MUDDY RIVER
1.8 MI W OF ROUTE 17, New Haven, CT
Built 1947 Load: 32.1 t ADT: 10,800
COLLEGE STREET
FairOver: NORTH SERVICE DRIVE
COLLEGE ST OVER N SERV DR, New Haven, CT
Built 2015 Load: 32.1 t ADT: 13,587
INTERSTATE-95 SOUT
FairOver: GROTON RESERVOIR
1.2 MI N OF ROUTE 112, New London, CT
Built 1964 Load: 32.1 t ADT: 30,500
ROUTE 349
FairOver: POQUONNOCK ROAD
1.0 MI S OF US ROUTE 1, New London, CT
Built 1966 Load: 32.1 t ADT: 10,700
RIVER ROAD
FairOver: BLACKLEDGE RIVER
1.3 MI W OF ROUTE 149, New London, CT
Built 1975 Load: 32.1 t ADT: 357
INTERSTATE-95
FairOver: WEST BROAD STREET
INTERSTATE-95 EXIT NO. 32, Fairfield, CT
Built 1958 Load: 32.4 t ADT: 91,400
I-95 SB TR 803
FairOver: WEST AVENUE
I-95 SB EXIT NO. 15, Fairfield, CT
Built 1970 Load: 32.4 t ADT: 14,600
SR 790 (SOUTH STAT
FairOver: RIPPOWAM RIVER
NEAR EXIT 7 I-95 NB, Fairfield, CT
Built 1847 Load: 32.4 t ADT: 9,600
SAWMILL ROAD
FairOver: SAWMILL BROOK
0.15 MI S OF ROUTE 37 INT, Fairfield, CT
Built 1936 Load: 32.4 t ADT: 631
ROUTE 15
FairOver: MATTABESSET RIVER
.3 MI S OF JCT ROUTE 160, Hartford, CT
Built 1926 Load: 32.4 t ADT: 25,100
ROUTE 20
FairOver: VALLEY BROOK
3.2 MILES WEST OF RTE 179, Hartford, CT
Built 1990 Load: 32.4 t ADT: 450
INTERSTATE-91 SB
FairOver: EVERGREEN ROAD
.69 MI SO OF RTE 9 O-PASS, Middlesex, CT
Built 1965 Load: 32.4 t ADT: 58,900
SSR 453
FairOver: MILL RIVER
0.1 MI E OF ROUTE 10, New Haven, CT
Built 1936 Load: 32.4 t ADT: 5,900
ROUTE 8 SOUTHBOUND
FairOver: WEST MAIN STREET #1
0.4 MILE NORTH OF I-84 WB, New Haven, CT
Built 1965 Load: 32.4 t ADT: 37,400
INTERSTATE-395
FairOver: ROODE ROAD
1.5 MI NORTH OF ROUTE 201, New London, CT
Built 1958 Load: 32.4 t ADT: 30,000
US ROUTE 1
FairOver: STREAM
0.9 MI N OF US ROUTE 1A, New London, CT
Built 1939 Load: 32.4 t ADT: 5,700
RTE I95
FairOver: FOX ISLAND ROAD, BYRAM R
I95 AT N Y STATE LINE, Fairfield, CT
Built 1956 Load: 32.7 t ADT: 58,294
U.S. ROUTE 1
FairOver: FIVE MILE RIVER
200 FT NORTH OF DARIEN TL, Fairfield, CT
Built 1850 Load: 32.7 t ADT: 21,900
Showing 1,401-1,450 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 |