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

ROUTE 114

Good

Over: WEPAWAUG RIVER

1.1 MI N OF ROUTE 243, New Haven, CT

Built 1996 Load: 30.8 t ADT: 7,200

SR 796 RAMP 001

Good

Over: MEADOW STREET

0.1 MI N OF US ROUTE 1, New Haven, CT

Built 1941 Load: 30.8 t ADT: 6,200

BROOK STREET

Good

Over: WILMOT BROOK

0.2 MI W OF ROUTE 15, New Haven, CT

Built 1950 Load: 30.8 t ADT: 5,200

CHESTNUT HILL ROAD

Good

Over: HAMMONASSET RIVER

0.3 MI E. OF ROUTE 79, New Haven, CT

Built 1935 Load: 30.8 t ADT: 841

MAPLEDALE ROAD

Good

Over: RACE BROOK

0.3 MI N OF ROUTE 152, New Haven, CT

Built 1983 Load: 30.8 t ADT: 2,449

CANAL STREET

Good

Over: DERBY CANAL

25' WEST OF ROUTE 34, New Haven, CT

Built 2005 Load: 30.8 t ADT: 292

GOSHEN HILL ROAD

Good

Over: PEASE BROOK

1 MILE WEST OF RTE. 87, New London, CT

Built 2003 Load: 30.8 t ADT: 459

WINDERMERE AVENUE

Good

Over: HOCKANUM RIVER

500 FT FR JCT ROUTE 286, Tolland, CT

Built 2009 Load: 30.8 t ADT: 1,900

SHODDY MILL ROAD

Good

Over: BURNAP BROOK

1.0 MI EAST OF HEBRON RD, Tolland, CT

Built 1947 Load: 30.8 t ADT: 541

US ROUTE 6 RMP 002

Good

Over: SNAKE MEADOW BROOK

2 MILES EAST OF I-395, Windham, CT

Built 1946 Load: 30.8 t ADT: 850

ROUTE 171

Good

Over: HAMILTON RESERVOIR BROOK

.3 MILE WEST OF I-84, Tolland, CT

Built 1954 Load: 31.0 t ADT: 1,200

ROUTE 47

Good

Over: SPRAIN BROOK

0.5 MI N. OF ROUTE 132, Litchfield, CT

Built 1988 Load: 31.1 t ADT: 3,000

ROUTE 63

Good

Over: BEACON HILL BROOK

1.2 MILES N OF ROUTE 42, New Haven, CT

Built 1966 Load: 31.1 t ADT: 7,700

BROOKSIDE AVENUE

Good

Over: WINTERGREEN BROOK

500 FT EAST OF WILMOT RD, New Haven, CT

Built 2015 Load: 31.1 t ADT: 550

Farmington Drive

Good

Over: Farm River

880 feet South of Route 1, New Haven, CT

Built 2015 Load: 31.1 t ADT: 101

ROUTE 216

Good

Over: GREEN FALLS RIVER

1.3 MI W OF I-95, New London, CT

Built 1949 Load: 31.1 t ADT: 1,500

BOSTON NECK ROAD

Good

Over: STONY BROOK

750' WEST OF MATHER ROAD, Hartford, CT

Built 1910 Load: 31.4 t ADT: 2,444

SUNNY LANE

Good

Over: TURKEY BROOK

150 FT W OF FALLS AVENUE, Litchfield, CT

Built 2005 Load: 31.4 t ADT: 50

ROUTE 151

Good

Over: SALMON RIVER

0.4 MILES FROM JCT 196, Middlesex, CT

Built 2008 Load: 31.4 t ADT: 3,700

SCHMITZ AVENUE

Good

Over: BEACON HILL BROOK

0.1 MI WEST OF ROUTE 63, New Haven, CT

Built 1982 Load: 31.4 t ADT: 162

BEACON VALLEY RD 1

Good

Over: BEACON HILL BROOK

350' SO OF ROUTE 63, New Haven, CT

Built 1982 Load: 31.7 t ADT: 1,200

SPRING ROAD

Good

Over: FIVE MILE BROOK

AT INT W ALEXANDER DRIVE, New Haven, CT

Built 1936 Load: 31.8 t ADT: 4,300

GOVERNORS HILL RD

Good

Over: LITTLE RIVER

50 FEET WEST OF ROUTE 67, New Haven, CT

Built 1990 Load: 31.8 t ADT: 2,100

CHATFIELD HOLLOW R

Good

Over: CHATFIELD HOLLOW BROOK

0.5 MI N OF PARK ENTRANC, Middlesex, CT

Built 2002 Load: 31.9 t ADT: 306

HIGH BRIDGE ROAD

Good

Over: HOUSATONIC RAILROAD

ONE MILE EAST OF ROUTE 25, Fairfield, CT

Built 1989 Load: 32.1 t ADT: 1,115

I-84 TR 820

Good

Over: WOODRUFF ROAD

WB EXIT 39A TO RTE 9 SB, Hartford, CT

Built 1966 Load: 32.1 t ADT: 16,800

WEED ROAD

Good

Over: BANTAM RIVER

500' E OF PUMPING ST. RD., Litchfield, CT

Built 2007 Load: 32.1 t ADT: 294

US ROUTE 1

Good

Over: AMTRAK RAILROAD

.25 MILES SOUTH OF I95, Middlesex, CT

Built 1976 Load: 32.1 t ADT: 19,500

BROOKSIDE AVENUE

Good

Over: LONG MEADOW POND BROOK

AT TOWN DPW, New Haven, CT

Built 1955 Load: 32.1 t ADT: 1,165

ROUTE 2

Good

Over: NEW ENG CENTRAL RR

.7 MILE EAST OF I-395, New London, CT

Built 1959 Load: 32.1 t ADT: 17,800

BIA RTE 407

Good

Over: UNNAMED STREAM

4.9KM NE LEYARD, CT, New London, CT

Built 1993 Load: 32.2 t ADT: 1,000

BROAD STREET

Good

Over: NORWALK RIVER

200 FT W OF US ROUTE 7, Fairfield, CT

Built 1956 Load: 32.4 t ADT: 5,510

WEST QUEEN STREET

Good

Over: QUINNIPIAC RIVER

0.3 MI W OF ROUTE 10, Hartford, CT

Built 1969 Load: 32.4 t ADT: 6,334

SKIPPER AVENUE

Good

Over: TURKEY BROOK

500 FT E OF FALLS AVENUE, Litchfield, CT

Built 2005 Load: 32.4 t ADT: 212

ROUTE 9 SOUTHBOUND

Good

Over: KELSEY HILL ROAD

0.7 MI N OF ROUTE 154, Middlesex, CT

Built 1967 Load: 32.4 t ADT: 16,600

COVERED BRIDGE RD

Good

Over: POND BROOK

NEAR JCT HILLCREST DR, Fairfield, CT

Built 2001 Load: 32.7 t ADT: 50

ROUTE 15

Good

Over: FIVE MILE RIVER

1 MILE SOUTH OF RTE 123, Fairfield, CT

Built 1937 Load: 32.7 t ADT: 72,920

ROUTE 25

Good

Over: POOTATUCK RIVER

NEAR MONROE TOWN LINE, Fairfield, CT

Built 1971 Load: 32.7 t ADT: 16,100

ROUTE 15 RAMP 057

Good

Over: CRICKER BROOK

100 FT EAST OF ROUTE 58, Fairfield, CT

Built 1997 Load: 32.7 t ADT: 9,100

CURRITUCK ROAD

Good

Over: POND BROOK

100' EAST OF ROUTE 25, Fairfield, CT

Built 2000 Load: 32.7 t ADT: 3,475

BAGBURN HILL ROAD

Good

Over: HALFWAY RIVER

0.9 MI N OF ROUTE 111, Fairfield, CT

Built 2002 Load: 32.7 t ADT: 388

BROCK STREET

Good

Over: PEQUONNOCK RIVER

250 FT E OF ROUTE 127, Fairfield, CT

Built 1979 Load: 32.7 t ADT: 1,009

ASTORIA AVENUE

Good

Over: ROOSTER RIVER OVERFLOW

0.2 MI E OF ROUTE 59, Fairfield, CT

Built 2000 Load: 32.7 t ADT: 310

HICKOCK ROAD

Good

Over: SILVERMINE RIVER

1 MI EAST OF VALLEY RD, Fairfield, CT

Built 2012 Load: 32.7 t ADT: 333

DIAMOND HILL ROAD

Good

Over: SAUGATUCK RIVER

500' WEST OF ROUTE 53, Fairfield, CT

Built 2001 Load: 32.7 t ADT: 895

GEORGES HILL ROAD

Good

Over: POND BROOK

AT JCT OF POND BROOK RD., Fairfield, CT

Built 1975 Load: 32.7 t ADT: 133

THORPE STREET EXT

Good

Over: BOGGS POND BROOK

0.1 E OF ROUTE 39, Fairfield, CT

Built 2003 Load: 32.7 t ADT: 3,140

CHESTNUT ST & MNRR

Good

Over: STILL RIVER

0.8 MILE EAST OF ROUTE 53, Fairfield, CT

Built 1974 Load: 32.7 t ADT: 6,430

PATCH STREET

Good

Over: PADANARAM BROOK

0.1 MI E OF ROUTE 53, Fairfield, CT

Built 1987 Load: 32.7 t ADT: 1,255

US ROUTE 7

Good

Over: GEOTZEN BROOK

1.2 MI N OF ROUTE 33, Fairfield, CT

Built 1985 Load: 32.7 t ADT: 17,500

Showing 3,151-3,200 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.