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

Total Bridges

4,277

Public highway bridges in Connecticut

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)

Connecticut23.965396305821837%47.79050736497545%GoodFairPoorStructurally Deficient
Bridge inventory deck-condition mix — Connecticut (FHWA NBI)

Counties (8)

Fairfield 840 Hartford 893 Litchfield 466 Middlesex 304 New Haven 891 New London 431 Tolland 188 Windham 264

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.

01

Alabama

3.35% top marginal rate
Structure
Progressive
Burden @ $100K
$13,471

27

Minnesota

3.63% top marginal rate
Structure
Progressive
Burden @ $100K
$11,969
Selected

09

Connecticut

3.95% top marginal rate
Structure
Progressive
Burden @ $100K
$4,277

47

Tennessee

3.97% top marginal rate
Structure
Progressive
Burden @ $100K
$20,426

24

Maryland

4.27% top marginal rate
Structure
Progressive
Burden @ $100K
$5,527

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 Deficient

Over: YANTIC RIVER

1 MILE WEST ROUTE 2, New London, CT

Built 1920 Load: 3.9 t

RIVER BANK ROAD

Structurally Deficient

Over: 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

Poor

Over: KITT BROOK

0.5 MI SOUTH OF ROUTE 14, Windham, CT

Built 1928 Load: 8.7 t ADT: 176

ROUTE 136

Poor

Over: SAUGATUCK RIVER

BETWEEN I-95 EXIT 17 & 18, Fairfield, CT

Built 1870 Load: 10.0 t ADT: 14,500

KENSINGTON ROAD

Poor

Over: MATTABESSET RIVER

0.2 MI S OF ROUTE 372, Hartford, CT

Built 1958 Load: 10.0 t ADT: 4,200

SR 664

Poor

Over: SNAKE MEADOW BROOK

3 MI NORTH OF ROUTE 14, Windham, CT

Built 1925 Load: 11.3 t ADT: 600

All Bridges in Connecticut

MAPLEWOOD COURT

Good

Over: GARDNER BROOK

0.1MI. SO. OF RTE 82, New London, CT

Built 2008 Load: 62.5 t ADT: 116

US ROUTE 7 NB

Good

Over: STILL RIVER

.50 MI N OF I-84/ 7 SPLIT, Fairfield, CT

Built 1976 Load: 62.6 t ADT: 27,600

SR707/WHITNEY AVE

Good

Over: MILL RIVER

.1 MILE SOUTH OF ROUTE 15, New Haven, CT

Built 1991 Load: 62.6 t ADT: 12,500

US ROUTE 7

Good

Over: NORWALK RIVER

0.1 MI N OF ROUTE 102, Fairfield, CT

Built 2017 Load: 62.9 t ADT: 16,500

LAKEVIEW AVENUE

Good

Over: FIVE MILE RIVER

JCT OF MILL PORT AVENUE, Fairfield, CT

Built 1957 Load: 62.9 t ADT: 1,225

U.S. ROUTE 7 BYPAS

Good

Over: WETLAND 'A'

1/2 MI. SO. OF US RT. 202, Fairfield, CT

Built 2009 Load: 62.9 t ADT: 20,800

KELSEYTOWN ROAD

Good

Over: MENUNKETESUCK RIVER

100'W OF BROOKSIDE DRIVE, Middlesex, CT

Built 2021 Load: 62.9 t ADT: 1,116

ROUTE 8 NORTHBOUND

Good

Over: OLD STRATFORD ROAD

3.3 MI N OF ROUTE 15, Fairfield, CT

Built 1975 Load: 63.0 t ADT: 26,300

CLARK STREET

Good

Over: METRO NORTH RAILROAD

0.1 MI N OF BRIDGEPORT AV, New Haven, CT

Built 2006 Load: 63.0 t ADT: 7,905

SNOWBERRY LANE

Good

Over: E. BRANCH SILVERMINE RVR

EAST OF ROUTE 33, Fairfield, CT

Built 1980 Load: 63.2 t ADT: 150

SR 500A

Good

Over: PEQUABUCK RIVER

0.3 MILE EAST OF RTE 229, Hartford, CT

Built 1966 Load: 63.2 t ADT: 5,500

INTERSTATE-91

Good

Over: BEAMANS BROOK

0.4 MILE NORTH OF EXIT 46, Hartford, CT

Built 1987 Load: 63.2 t ADT: 88,700

UPLAND ROAD

Good

Over: EAST ASPETUCK RIVER

APPROX 65' E OF ROUTE 202, Litchfield, CT

Built 1978 Load: 63.2 t ADT: 542

ROUTE 148

Good

Over: PATTACONK BROOK

0.7 MI W OF ROUTE 15, Middlesex, CT

Built 1984 Load: 63.2 t ADT: 4,400

ROUTE 82

Good

Over: SWAMP BROOK

0.8 MI W OF ROUTE 11, New London, CT

Built 2021 Load: 63.2 t ADT: 3,400

PLEASANT VIEW DRIV

Good

Over: HOCKANUM RIVER

900 FT WEST OF ROUTE 83, Tolland, CT

Built 2018 Load: 63.2 t ADT: 1,104

TOBEY HILL ROAD

Good

Over: WHITING RIVER

200' E OF CANAAN VALLEY R, Litchfield, CT

Built 2021 Load: 63.5 t ADT: 257

ROUTE 126

Good

Over: HOLLENBECK RIVER

AT JCT OF RT 126 &SAND RD, Litchfield, CT

Built 1991 Load: 63.5 t ADT: 1,200

ROUTE 80

Good

Over: MENUNKETESUCK RIVER

1.3.MI E. OF ROUTE 81, Middlesex, CT

Built 1983 Load: 63.5 t ADT: 3,600

SR 800

Good

Over: MAD RIVER

100 FEET SOUTH OF U.S. 44, Litchfield, CT

Built 2022 Load: 63.8 t ADT: 3,500

HATFIELD HILL ROAD

Good

Over: WEST RIVER

0.3 MI E OF ROUTE 69, New Haven, CT

Built 1999 Load: 63.8 t ADT: 462

ROUTE 184

Good

Over: WHITFORD BROOK

0.3 MI E OF ROUTE 27, New London, CT

Built 2010 Load: 64.5 t ADT: 3,700

ROUTE 67

Good

Over: JACKS BROOK

2.1 MI. W. OF WOODBURY TL, Litchfield, CT

Built 1990 Load: 64.8 t ADT: 4,700

ROUTE 15

Good

Over: TOELLES ROAD

.3 MILES WEST OF ROUTE 5, New Haven, CT

Built 1947 Load: 64.8 t ADT: 68,200

WALL STREET

Good

Over: WHARTON BROOK

0.1 MI E. OF S. ELM ST, New Haven, CT

Built 2006 Load: 65.0 t ADT: 425

U.S. ROUTE 7

Good

Over: NORWALK RIVER

1.9 MI NORTH OF ROUTE 102, Fairfield, CT

Built 2005 Load: 65.1 t ADT: 15,500

EAST JOHNSON AVE

Good

Over: QUINNIPIAC RIVER

1.1 MI E OF ROUTE 10, New Haven, CT

Built 2016 Load: 65.8 t ADT: 4,700

FERN STREET

Good

Over: TROUT BROOK

30' WEST OF TROUTBROOK DR, Hartford, CT

Built 1983 Load: 66.7 t ADT: 10,686

FLAX MILL LANE

Good

Over: WEPAWAUG RIVER

660 FT W OF ROUTE 121, New Haven, CT

Built 2020 Load: 66.7 t ADT: 707

INGHAM HILL ROAD

Good

Over: AMTRAK RAILROAD

0.4 MI N OF US ROUTE 1, Middlesex, CT

Built 1990 Load: 67.0 t ADT: 1,195

ROUTE 8

Good

Over: JACKSON STREET

2.0 MI N OF ROUTE 34, New Haven, CT

Built 1957 Load: 67.1 t ADT: 63,800

ROUTE 67

Good

Over: GREAT BROOK

100' SOUTH OF RTE 202 JCT, Litchfield, CT

Built 2010 Load: 67.4 t ADT: 6,700

U.S. ROUTE 6

Good

Over: MERRICK BROOK AND TRAIL

0.3 MI EAST CHAPLIN T.L., Windham, CT

Built 1948 Load: 67.7 t ADT: 8,600

ROUTE 9 SOUTHBOUND

Good

Over: MATTABESSET RIVER

1.5 MI SOUTH OF ROUTE 72, Middlesex, CT

Built 1988 Load: 68.0 t ADT: 33,900

GRANDVIEW AVENUE

Good

Over: ROBBINS STREET

AT SW CORNER OF HOSPITAL, New Haven, CT

Built 1995 Load: 68.0 t ADT: 8,100

ARCH STREET

Good

Over: LONG MEADOW POND BROOK

AT JCT OF RUBBER AVE&ARCH, New Haven, CT

Built 1982 Load: 68.0 t ADT: 1,570

OLD ROUTE 63

Good

Over: HOP BROOK

8.05 KM W OF WATERBURY, New Haven, CT

Built 1935 Load: 68.0 t ADT: 30

VERNON STREET

Good

Over: LYDALL BROOK

AT LYDALL STREET NO. 2, Hartford, CT

Built 1987 Load: 68.4 t ADT: 5,100

DUTTON ROAD

Good

Over: LITTLE RIVER

100 FT SOUTH OF ROUTE 67, New Haven, CT

Built 2022 Load: 68.4 t ADT: 240

I-395 TR 803

Good

Over: EAST FRANKLIN STREET

2.14 MI NO PLAINFIELD TL, Windham, CT

Built 1963 Load: 68.4 t ADT: 2,700

DUBLIN HILL ROAD

Good

Over: PONSET BROOK

40 FT N OF DEPOT RD, Middlesex, CT

Built 2019 Load: 68.7 t ADT: 810

GROVE STREET

Good

Over: GREAT BROOK

300-FT SO. RTE 202 INT, Litchfield, CT

Built 2010 Load: 69.0 t ADT: 10,360

OLD KINGS HWY NO.

Good

Over: FIVE MILE RIVER

0.6 MI E OF I-95, Fairfield, CT

Built 1995 Load: 69.3 t ADT: 4,747

HUBBARD ROAD

Good

Over: WEST RIVER

0.2 MI W OF ROUTE 77, New Haven, CT

Built 2007 Load: 69.3 t ADT: 2,362

ROUTE 14

Good

Over: MERRICK BROOK

.1 MILE WEST OF ROUTE 97, Windham, CT

Built 2020 Load: 69.3 t ADT: 4,800

ROUTE 2

Good

Over: SHETUCKET RIVER

.28MI E OF JCT RTE 82 EB, New London, CT

Built 1959 Load: 69.7 t ADT: 16,200

LEONARD ROAD

Good

Over: FURNACE BROOK

130 FT FROM JCT ROUTE 19, Tolland, CT

Built 2022 Load: 69.7 t ADT: 1,200

TATNIC ROAD

Good

Over: STONY BROOK

100 FT E JCT MASON ROAD, Windham, CT

Built 2000 Load: 69.7 t ADT: 1,345

WEST STREET

Good

Over: GREAT BROOK

0.4 MI SOUTH OF ROUTE 202, Litchfield, CT

Built 2002 Load: 70.0 t ADT: 892

ROUTE 83

Good

Over: AVERY BROOK

1.3 MI NORTH OF ROUTE 190, Tolland, CT

Built 1957 Load: 70.3 t ADT: 3,400

Showing 3,951-4,000 of 4,277 bridges

Related

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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.