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

I-84 EB EXIT 25 RA

Good

Over: MAD RIVER

INTERSCT HARPERS FERRY RD, New Haven, CT

Built 2018 Load: 45.0 t ADT: 5,500

JORDAN COVE ROAD

Good

Over: JORDAN COVE

0.1 MI W OF SHORE ROAD, New London, CT

Built 1937 Load: 45.0 t ADT: 1,799

ROUTE 43

Good

Over: HOLLENBECK RIVER

.388 MI NORTH OF JCT 128, Litchfield, CT

Built 1989 Load: 45.2 t ADT: 400

MILL PLAIN ROAD

Good

Over: MILL RIVER

2.0 MI N OF I-95, Fairfield, CT

Built 2011 Load: 45.3 t ADT: 8,800

ROUTE 58

Good

Over: ASPETUCK RIVER

0.4 MI N OF ROUTE 136, Fairfield, CT

Built 1947 Load: 45.4 t ADT: 4,600

MARION AVENUE

Good

Over: EIGHT MILE RIVER

475 FT E OF I-84, Hartford, CT

Built 1979 Load: 45.4 t ADT: 12,400

NORTON ROAD

Good

Over: AMTRAK RAILROAD

300 FT EAST KENSINGTON RD, Hartford, CT

Built 1979 Load: 45.4 t ADT: 5,300

SMOKEY HOLLOW ROAD

Good

Over: BANTAM RIVER

1 MI NORTH OF ROUTE 109, Litchfield, CT

Built 1956 Load: 45.4 t ADT: 247

RUBBER AVENUE

Good

Over: LONG MEADOW POND BROOK

AT EDWARDS STREET, New Haven, CT

Built 2010 Load: 45.4 t ADT: 10,900

ROUTE 70

Good

Over: QUINNIPIAC RIVER

1 MILE WEST OF RTE 71 JCT, New Haven, CT

Built 1988 Load: 45.4 t ADT: 8,200

ROUTE 114

Good

Over: WEPAWAUG RIVER

0.3 MI N OF ROUTE 243, New Haven, CT

Built 1936 Load: 45.4 t ADT: 7,200

RANDI DRIVE

Good

Over: HUZZLE GUZZLE BROOK

0.2 MI E OF ROUTE 79, New Haven, CT

Built 1986 Load: 45.4 t ADT: 153

ENTRANCE TO MGM GA

Good

Over: UNNAMED STREAM

MASHANTUCKET PEQUOT RESER, New London, CT

Built 2006 Load: 45.4 t ADT: 100

INTERSTATE-395 NB

Good

Over: EAST FRANKLIN STREET

0.2 MI NORTH OF US RTE 6, Windham, CT

Built 1963 Load: 45.4 t ADT: 12,100

ROUTE 17

Good

Over: HUBBARD STREET

1.14 MI SOUTH OF WB RTE 2, Hartford, CT

Built 1953 Load: 45.7 t ADT: 13,000

STANTON HILL RD EX

Good

Over: YANTIC RIVER

75 FT N OF GILMAN ROAD, New London, CT

Built 1963 Load: 45.7 t ADT: 400

ROUTE 163

Good

Over: OXOBOXO BROOK

1.6 MILES NORTH OF I-395, New London, CT

Built 1993 Load: 45.7 t ADT: 5,600

US ROUTE 6

Good

Over: BLACKWELL BROOK

1 MILE WEST OF ROUTE 169, Windham, CT

Built 1985 Load: 45.9 t ADT: 9,100

ROUTE 8 SOUTHBOUND

Good

Over: CAPITOL AVENUE

2.4 MI N. OF I-95, Fairfield, CT

Built 1972 Load: 46.0 t ADT: 46,600

ROUTE 8 NORTHBOUND

Good

Over: CAPITOL AVENUE

2.4 MILES NORTH OF I-95, Fairfield, CT

Built 1972 Load: 46.0 t ADT: 44,500

ROUTE 4

Good

Over: FARMINGTON RIVER

.2 MI WEST JCT ROUTE 10, Hartford, CT

Built 1955 Load: 46.0 t ADT: 23,900

KNIFE SHOP ROAD

Good

Over: NORTHFIELD POND BROOK

200' NORTH OF RT 254, Litchfield, CT

Built 2007 Load: 46.0 t ADT: 800

US ROUTE 1

Good

Over: BRANFORD RIVER

0.5 MI S OF I-95, New Haven, CT

Built 1958 Load: 46.0 t ADT: 14,400

DODGE AVENUE

Good

Over: TUTTLE BROOK

0.5 MI W OF HEMINGWAY AVE, New Haven, CT

Built 2010 Load: 46.0 t ADT: 3,100

SKIFF STREET

Good

Over: MILL RIVER

0.4 MI E OF ROUTE 10, New Haven, CT

Built 1931 Load: 46.0 t ADT: 24,000

TUTTLE AVENUE

Good

Over: MILL RIVER

0.2 MI EAST OF ROUTE 10, New Haven, CT

Built 1920 Load: 46.0 t ADT: 974

ROUTE 349 SB

Good

Over: AMTRAK RAILROAD

0.9 MI S OF I-95, New London, CT

Built 1966 Load: 46.0 t ADT: 8,300

ROUTE 349 NB

Good

Over: AMTRAK RAILROAD

1 MILE S OF INTERSTATE-95, New London, CT

Built 1966 Load: 46.0 t ADT: 7,900

US ROUTE 1

Good

Over: LATIMER BROOK

0.1 MI N OF ROUTE 161, New London, CT

Built 1984 Load: 46.0 t ADT: 14,700

DISCOVERY DRIVE

Good

Over: SALAMANDER BROOK

SOUTH OF ROUTE 44 INTER., Tolland, CT

Built 2015 Load: 46.0 t ADT: 3,800

DIVISION STREET

Good

Over: MAD RIVER

ADJ TO ROUTE 44, Litchfield, CT

Built 1956 Load: 46.2 t ADT: 1,364

WEST MIDDLE TPKE.

Good

Over: BIGELOW BROOK

1 MILE EAST OF JCT US 44, Hartford, CT

Built 1975 Load: 46.3 t ADT: 13,300

NORTH POND STREET

Good

Over: PAN AM RAILROAD

NEAR CURTISS STREET, Hartford, CT

Built 1924 Load: 46.3 t ADT: 3,675

BARNES HILL ROAD

Good

Over: BURLINGTON BROOK

100 FT NORTH OF ROUTE 4, Hartford, CT

Built 1956 Load: 46.3 t ADT: 261

INTERSTATE-95

Good

Over: LAUREL STREET

0.1 MI S OF ROUTE 100, New Haven, CT

Built 1958 Load: 46.3 t ADT: 76,400

DAY STREET

Good

Over: BLADENS RIVER

0.2 MILE EAST OF ROUTE 67, New Haven, CT

Built 2009 Load: 46.3 t ADT: 2,689

BEAR HILL ROAD

Good

Over: BLADEN RIVER

660 FT N OF ROUTE 67, New Haven, CT

Built 1999 Load: 46.3 t ADT: 396

OLD ROUTE 79

Good

Over: AMTRAK RAILROAD

200 FT NORTH OF BRADLEY R, New Haven, CT

Built 1992 Load: 46.3 t ADT: 676

SR 796 EASTBOUND

Good

Over: WELLINGTON ROAD EXT.

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

Built 1992 Load: 46.3 t ADT: 18,300

PARKER BRIDGE ROAD

Good

Over: HOP RIVER

3500FT FR JCT BUNKER HILL, Tolland, CT

Built 2008 Load: 46.3 t ADT: 475

WOODSTOCK AVE #1

Good

Over: LITTLE RIVER

1050'SOUTH OF ROUTE 171, Windham, CT

Built 2020 Load: 46.3 t ADT: 1,452

OLD TURNPIKE NORTH

Good

Over: KONKAPOT RIVER

SO OF SODOM RD INT., Litchfield, CT

Built 2009 Load: 46.5 t ADT: 760

OLD CLINTON ROAD

Good

Over: AMTRAK RAILROAD

1.4 MI E OF ROUTE 145, Middlesex, CT

Built 1997 Load: 46.5 t ADT: 2,400

WAVERLY ROAD

Good

Over: FARMILL RIVER

0.5 MI N OF ROUTE 108, Fairfield, CT

Built 2019 Load: 46.7 t ADT: 3,270

SR 806

Good

Over: LIMEKILN BROOK

0.2 MI S OF I-84 EXIT 8, Fairfield, CT

Built 1991 Load: 46.7 t ADT: 24,000

BELL STREET

Good

Over: SALMON BROOK

.25 MI (N) INT RTE 94, Hartford, CT

Built 2008 Load: 46.7 t ADT: 1,773

OLD CLINTONVLLE RD

Good

Over: MUDDY RIVER

0.2 MI EAST OF ROUTE 22, New Haven, CT

Built 2005 Load: 46.7 t ADT: 995

JARVIS STREET

Good

Over: TEN MILE RIVER

1.4 M WEST OF ROUTE 10, New Haven, CT

Built 1979 Load: 46.8 t ADT: 2,200

OLD GREENWOODS RD

Good

Over: GREENWOODS BROOK

AT ROUTE 37 INTERSECTION, Fairfield, CT

Built 2010 Load: 47.0 t ADT: 54

STONEMILL ROAD #1

Good

Over: FENTON RIVER

.1MI SO OF CHAFFEEVLLE RD, Tolland, CT

Built 2012 Load: 47.0 t ADT: 127

Showing 3,651-3,700 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.