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 337

Poor

Over: MORRIS CREEK

2.8 MI S. OF US ROUTE 1, New Haven, CT

Built 1936 Load: 41.4 t ADT: 2,600

US RTE 1 W BROAD S

Poor

Over: PAWCATUCK RIVER

CT AND RI BORDER, New London, CT

Built 1932 Load: 41.6 t ADT: 16,400

EAST ALBERT STREET

Poor

Over: NAUGATUCK RIVER

850 FEET EAST OF MAIN ST., Litchfield, CT

Built 1959 Load: 41.7 t ADT: 9,350

ROUTE 40 SB

Poor

Over: AMTRAK RAILROAD

0.5 MILES N OF I-91, New Haven, CT

Built 1971 Load: 41.7 t ADT: 23,200

BRIDGE STREET

Poor

Over: MAD RIVER

INTERSECTION OF ROUTE 44, Litchfield, CT

Built 1956 Load: 41.8 t ADT: 5,410

VAN CAR ROAD

Poor

Over: EAST ASPETUCK RIVER

1 MILE WEST OF ROUTE 202, Litchfield, CT

Built 1957 Load: 41.9 t ADT: 890

US ROUTE 1

Poor

Over: WEST RIVER

0.1 MI S OF ROUTE 10, Fairfield, CT

Built 1950 Load: 42.8 t ADT: 20,500

CASE AVENUE

Poor

Over: MAD RIVER

AT THE INTERSECTION-RT 44, Litchfield, CT

Built 1956 Load: 42.8 t ADT: 1,995

CLAPBOARD HILL RD

Poor

Over: EAST RIVER

.1 MI E OF EAST RIVER RD, New Haven, CT

Built 1950 Load: 42.8 t ADT: 3,000

ROUTE 2

Poor

Over: HOCKANUM RIVER

.4 MILE EAST OF PITKIN ST, Hartford, CT

Built 1962 Load: 43.1 t ADT: 74,600

MILLS LANE #1

Poor

Over: WASH BROOK

400' EAST OF ROUTE 189, Hartford, CT

Built 1974 Load: 43.1 t ADT: 1,440

VALLEY ROAD

Poor

Over: ASPETUCK RIVER

0.6 MI E OF ROUTE 58, Fairfield, CT

Built 1955 Load: 43.4 t ADT: 440

FLANDERS ROAD

Poor

Over: WILLIMANTIC RIVER

AT MANSFIELD TOWN LINE, Tolland, CT

Built 1914 Load: 44.7 t ADT: 800

RIVER ROAD #1

Poor

Over: SUMNER BROOK

75 FEET EAST OF ROUTE 9, Middlesex, CT

Built 1920 Load: 45.0 t ADT: 2,836

NEW LONDON TPKE

Poor

Over: YANTIC RIVER

.1 MILE SOUTH OF SR 642, New London, CT

Built 1963 Load: 46.3 t ADT: 9,300

COTTON BRIDGE ST

Poor

Over: QUINEBAUG RIVER

1850' FROM JCT LAKE ROAD, Windham, CT

Built 1956 Load: 46.3 t ADT: 148

WEST BROAD STREET

Poor

Over: RIPPOWAM RIVER

0.2 MI W OF ROUTE 137, Fairfield, CT

Built 1954 Load: 46.6 t ADT: 14,220

US ROUTE 202

Poor

Over: SHEPAUG RIVER

100' EAST OF JCT RTE 341, Litchfield, CT

Built 1957 Load: 47.0 t ADT: 4,800

WALLENS STREET

Poor

Over: STILL RIVER

INTERSECTION OF ROUTE 8, Litchfield, CT

Built 1955 Load: 47.2 t ADT: 1,825

EAGLE STREET

Poor

Over: NAUGATUCK RIVER

JCT OF EAGLE ST & SR 847, New Haven, CT

Built 1956 Load: 47.3 t ADT: 3,007

RIVER PLACE

Poor

Over: BLACKBERRY RIVER

NEAR INT. OF US RTE 44, Litchfield, CT

Built 1957 Load: 47.6 t ADT: 100

INTERSTATE-95

Poor

Over: MILL PLAIN ROAD

INTERSTATE-95 EXIT NO 21, Fairfield, CT

Built 1958 Load: 48.0 t ADT: 115,000

ROUTE 8 SOUTHBOUND

Poor

Over: REYNOLDS BRIDGE ROAD

0.1 MI NORTH WATERTOWN TL, Litchfield, CT

Built 1964 Load: 48.0 t ADT: 17,000

GAGER HILL ROAD

Poor

Over: MERRICK BROOK

1500 FT WEST OF ROUTE 97, Windham, CT

Built 1936 Load: 48.1 t ADT: 357

NEWFIELD ROAD

Poor

Over: E BR NAUGATUCK RIVER

2 MI NORTH OF ROUTE 8, Litchfield, CT

Built 1957 Load: 49.0 t ADT: 1,770

MEADOW STREET

Poor

Over: MAD RIVER

JCT ROUTE 44 & MEADOW ST., Litchfield, CT

Built 1956 Load: 49.0 t ADT: 2,955

ROUTE 4

Poor

Over: GUINEA BROOK

JCT. OF EAST ST., Litchfield, CT

Built 1933 Load: 50.1 t ADT: 2,200

FRANKLIN STREET

Poor

Over: E BR NAUGATUCK RIVER

APPRX 750'SOUTH OF US 202, Litchfield, CT

Built 1958 Load: 51.7 t ADT: 2,780

WHITE STREET

Poor

Over: STILL RIVER

50' EAST OF ROUTE 8, Litchfield, CT

Built 1956 Load: 52.6 t ADT: 406

INDUSTRIAL PARK RO

Poor

Over: GAGES BROOK

0.2 MILE SOUTH OF RTE 30, Tolland, CT

Built 1980 Load: 53.5 t ADT: 105

INDUSTRIAL PARK RO

Poor

Over: GAGES BROOK

0.24 MILES SOUTH OF RT 30, Tolland, CT

Built 1980 Load: 53.5 t ADT: 535

FORT PATH ROAD

Poor

Over: AMTRAK RAILROAD

0.3 MI SOUTH OF I-95, New Haven, CT

Built 1910 Load: 56.5 t ADT: 535

PLYMOUTH STREET

Poor

Over: DECKERS BROOK

.6 MILES S OF JCT SR 178, Hartford, CT

Built 1955 Load: 58.0 t ADT: 212

ROUTE 9

Poor

Over: P&W RAILROAD & UNION ST

0.2 MI N OF ROUTE 17, Middlesex, CT

Built 1950 Load: 59.8 t ADT: 59,600

FLOYDVILLE ROAD

Poor

Over: SALMON BROOK

200 FT WEST OF ROUTE 189, Hartford, CT

Built 1947 Load: 62.7 t ADT: 6,968

BEN MERRILL ROAD

Poor

Over: BROOK

0.4 MI W OF IRON WORKS RD, Middlesex, CT

Built 2000 Load: 85.9 t ADT: 312

MOUNTAIN ROAD

Poor

Over: SPAULDING BROOK

200 FT E OF WESTSIDE RD, Litchfield, CT

Built 1955 Load: 97.2 t ADT: 209

COLONY ROAD

Poor

Over: LATIMER BROOK

0.1 MI E OF MATFIELD TER., New London, CT

Built 1982 Load: 97.2 t ADT: 322

BASSETTS BRIDGE RD

Poor

Over: NAUBESATUCK LAKE

1.5 MI EAST OF RTE 195, Tolland, CT

Built 1950 Load: 97.2 t ADT: 2,600

WINWOOD CIRCLE

Poor

Over: WRIGHTS BROOK

500FT West of 186, Tolland, CT

Built 1970 Load: 97.2 t ADT: 535

MAIN STREET EXT.

Poor

Over: SUMNER BROOK

430 FT N OF ROUTE 17, Middlesex, CT

Built 1935 Load: 99.9 t ADT: 10,496

GERBER DRIVE

Poor

Over: GAGES BROOK

0.14 Mi S Ind Park Road E, Tolland, CT

Built 1980 Load: 99.9 t ADT: 535

FALLS ROAD

Structurally Deficient

Over: NONNEWAUG BROOK

300' E OF NONNEWAUG RD, Litchfield, CT

Built 1956 ADT: 95

RIVERVIEW GARAGE E

Structurally Deficient

Over: MOHEGAN SUN BLVD

00000000 004, New London, CT

Built 1

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

WIRE MILL ROAD

Structurally Deficient

Over: HAVILAND BROOK

0.3 MI W OF ROUTE 137, Fairfield, CT

Built 1957 Load: 11.7 t ADT: 1,900

MOUNTAIN ROAD

Structurally Deficient

Over: WATABA LAKE

0.2 MI N OF BENNETTS FARM, Fairfield, CT

Built 1955 Load: 12.3 t ADT: 440

COUNTRY VILLAGE LA

Structurally Deficient

Over: BROOK

0.2 MI EAST OF OLD NOD RD, Middlesex, CT

Built 1970 Load: 13.6 t ADT: 100

TAFT POND ROAD

Structurally Deficient

Over: MASHAMOQUET BROOK

.5 MI NORTH OF ROUTE 97, Windham, CT

Built 1900 Load: 17.8 t ADT: 368

Showing 4,201-4,250 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.