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

INTERSTATE-691 EB

Good

Over: KNOTTER DRIVE

1.1 MI W OF ROUTE 10, New Haven, CT

Built 1986 Load: 40.5 t ADT: 28,500

BROOKSVALE AVENUE

Good

Over: JEPP BROOK

1/4 mi.west of Route 10, New Haven, CT

Built 2013 Load: 40.5 t ADT: 850

SR 616

Good

Over: BARTLETT BROOK

.7 MI E COLCHESTER TL, New London, CT

Built 2014 Load: 40.5 t ADT: 1,600

WOODLAND STREET

Good

Over: CENTRAL NEW ENGLAND RR

50' SOUTH OF HOMESTEAD ST, Hartford, CT

Built 2005 Load: 40.8 t ADT: 10,900

ROUTE 69

Good

Over: PAN AM RAILROAD

0.2 MILE NORTH OF ROUTE 6, Hartford, CT

Built 1992 Load: 40.8 t ADT: 5,600

U.S. ROUTE 44

Good

Over: NORTH BRANCH PARK RIVER

0.3 MILE EAST OF RTE. 189, Hartford, CT

Built 1993 Load: 40.8 t ADT: 15,000

WEST SIDE ROAD

Good

Over: WEST SIDE POND BROOK

AT BARTHOLOMEW HILL ROAD, Litchfield, CT

Built 1955 Load: 40.8 t ADT: 211

US ROUTE 7

Good

Over: BLACKBERRY RIVER

0.2 MI SOUTH OF JCT US 44, Litchfield, CT

Built 1989 Load: 40.8 t ADT: 6,200

WALNUT STREET

Good

Over: FALLS RIVER

90 FT S OF MAIN STREET, Middlesex, CT

Built 2018 Load: 40.8 t ADT: 963

MERRITT AVENUE

Good

Over: WEST RIVER

100 FT E OF ROUTE 69, New Haven, CT

Built 1940 Load: 40.8 t ADT: 1,328

RUBBER AVENUE

Good

Over: LONG MEADOW POND BROOK

AT NAUGATUCK HIGH SCHOOL, New Haven, CT

Built 1983 Load: 40.8 t ADT: 7,000

ROUTE 2

Good

Over: LAKE OF ISLES DRIVE

1.9 MI E OF ROUTE 164, New London, CT

Built 2009 Load: 40.8 t ADT: 9,600

ADAMS STREET

Good

Over: HOCKANUM RIVER

0.6 MI S OF TOLLAND TPKE, Hartford, CT

Built 1983 Load: 40.9 t ADT: 12,100

BECKLEY ROAD

Good

Over: SPRUCE BROOK

0.7 MI N OF ROUTE 372, Hartford, CT

Built 2012 Load: 41.1 t ADT: 2,060

LAUREL LANE

Good

Over: MOUNT HOPE RIVER

.1 MI EAST OF ROUTE 89, Tolland, CT

Built 2013 Load: 41.1 t ADT: 6

ROUND HILL ROAD

Good

Over: CONVERSE POND BROOK

NEAR EXIT 28-ROUTE 15, Fairfield, CT

Built 2018 Load: 41.5 t ADT: 6,760

ROUTE 10

Good

Over: QUINNIPIAC RIVER

0.8 MI N OF I-84, Hartford, CT

Built 1972 Load: 41.5 t ADT: 13,500

HARTFORD ROAD

Good

Over: SOUTH FORK HOCKANUM RIV

2000 FT EAST OF SR 502, Hartford, CT

Built 2020 Load: 41.5 t ADT: 5,800

NEHANTIC TRAIL #2

Good

Over: MUD CREEK

50' SOUTH/RED BIRD TRAIL, Middlesex, CT

Built 2003 Load: 41.5 t ADT: 268

ROUTE 152

Good

Over: RACE BROOK

0.7 MI S OF ROUTE 34, New Haven, CT

Built 1983 Load: 41.5 t ADT: 3,500

SR 616

Good

Over: BROOK

3.1 MI E OF ROUTE 85, New London, CT

Built 2014 Load: 41.7 t ADT: 1,800

BROOKLYN STREET

Good

Over: HOCKANUM RIVER

100 FT FR JCT ROUTE 74, Tolland, CT

Built 1988 Load: 41.7 t ADT: 733

EDMOND ROAD

Good

Over: UNNAMED TRIBUTARY

SW OF I-84 EXIT10 ON-RAMP, Fairfield, CT

Built 2020 Load: 41.8 t ADT: 2,000

ROUTE 317

Good

Over: POMPERAUG RIVER

1.4 MILES WEST OF ROUTE 6, Litchfield, CT

Built 1989 Load: 41.8 t ADT: 5,200

INTERSTATE-95

Good

Over: LONG HILL ROAD

0.4 MI S OF ROUTE 77, New Haven, CT

Built 1958 Load: 41.8 t ADT: 59,300

BEACH ROAD

Good

Over: BRIDE BROOK

OUTLET ROAD FROM BEACH, New London, CT

Built 1992 Load: 41.8 t ADT: 3,323

ROUTE 2

Good

Over: MILLTOWN ROAD

0.2 MI E OF ROUTE 214, New London, CT

Built 2009 Load: 41.8 t ADT: 9,300

ROUTE 9 NORTHBOUND

Good

Over: EAST STREET #2

0.9 MILE SOUTH RTE 175, Hartford, CT

Built 1975 Load: 42.1 t ADT: 38,800

MERRYALL ROAD

Good

Over: WEST ASPETUCK RIVER

SOUTH OF W MEETING HOUSE, Litchfield, CT

Built 2004 Load: 42.1 t ADT: 1,665

SUNNYSIDE AVENUE

Good

Over: TURKEY BROOK

100 FT EAST OF FALLS AVE, Litchfield, CT

Built 2012 Load: 42.1 t ADT: 4,914

ROUTE 155

Good

Over: SUMNER BROOK

0.7 MI W OF ROUTE 9, Middlesex, CT

Built 1936 Load: 42.1 t ADT: 9,100

ROUTE 74

Good

Over: HOCKANUM RIVER

.5 MI WEST OF ROUTE 83, Tolland, CT

Built 2016 Load: 42.1 t ADT: 5,300

ROUTE 77

Good

Over: BROOK

3.7 MI N OF ROUTE 80, New Haven, CT

Built 2011 Load: 42.4 t ADT: 4,500

ROUTE 77

Good

Over: WEST RIVER

0.3 MI N OF ROUTE 80, New Haven, CT

Built 1988 Load: 42.4 t ADT: 5,400

PEARL STREET

Good

Over: P & W RAILROAD

1/4 MI. NORTH OF RTE.66, Middlesex, CT

Built 2009 Load: 42.5 t ADT: 2,958

BUTTON SHOP ROAD

Good

Over: HOUSATONIC RR

.5 MI.EAST OF RTE.25, Fairfield, CT

Built 1911 Load: 42.6 t ADT: 2,200

PUTNAM ROAD

Good

Over: FIVE MILE RIVER

100' NORTH OF RIVER ROAD, Windham, CT

Built 1999 Load: 42.6 t ADT: 129

RIVERSIDE STREET

Good

Over: STEELE BROOK

200 FT NORTH OF ROUTE 73, Litchfield, CT

Built 1992 Load: 42.7 t ADT: 2,686

ROUTE 39

Good

Over: MORRISSEY BROOK

1.2 MI N OF INT OF 37&39, Fairfield, CT

Built 2006 Load: 42.8 t ADT: 1,300

ROUTE 109

Good

Over: WIGWAM RESERVOIR

ON THOMASTON TOWN LINE, Litchfield, CT

Built 2019 Load: 42.8 t ADT: 2,500

SMITH PLACE

Good

Over: MILL BROOK

INT SMITH PLACE & RTE 128, Litchfield, CT

Built 1955 Load: 42.8 t ADT: 25

ROUTE 61

Good

Over: NONNEWAUG RIVER

0.2 MILE NORTH OF ROUTE 6, Litchfield, CT

Built 1989 Load: 42.8 t ADT: 3,400

ROUTE 164

Good

Over: BROAD BROOK

1.7 MI NORTH OF ROUTE 165, New London, CT

Built 1940 Load: 42.8 t ADT: 4,000

ROUTE 127

Good

Over: PEQUONNOCK RIVER

0.4 MI N OF ROUTE 15, Fairfield, CT

Built 1980 Load: 42.9 t ADT: 11,400

FABYAN WOODSTCK RD

Good

Over: QUINNEBAUG RIVER

0.6 MI SOUTH OF ROUTE 131, Windham, CT

Built 1999 Load: 42.9 t ADT: 2,295

BUTTON BALL ROAD

Good

Over: AMTRAK RAILROAD

0.8 MI N OF ROUTE 156, New London, CT

Built 1933 Load: 43.0 t ADT: 433

CENTRAL AVENUE

Good

Over: METRO NORTH RAILROAD

0.5 MI SOUTH OF ROUTE 1, Fairfield, CT

Built 1903 Load: 43.1 t ADT: 7,600

EASTERN BOULEVARD

Good

Over: SALMON BROOK

APPROX 370'NORTH OF RT 94, Hartford, CT

Built 2018 Load: 43.1 t ADT: 6,492

COMMERCE DRIVE

Good

Over: STREAM

300 FT S OF JUNC OF SR565, Hartford, CT

Built 2000 Load: 43.1 t ADT: 104

BITGOOD ROAD

Good

Over: HOPEVILLE POND

0.8 MI NORTH OF ROUTE 138, New London, CT

Built 2014 Load: 43.1 t ADT: 347

Showing 3,551-3,600 of 4,277 bridges

Related

All states → | National rankings → | Understanding conditions → | SD bridges explained →
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.