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-91 SB

Good

Over: WESTON STREET

0.3 MILE SOUTH OF RTE 159, Hartford, CT

Built 1991 Load: 58.6 t ADT: 68,400

ROUTE 154

Good

Over: DEEP RIVER

0.6 MI N OF ROUTE 80, Middlesex, CT

Built 1984 Load: 58.6 t ADT: 5,000

RECREATION PARK ST

Good

Over: LITTLE RIVER

1/8 MILE EAST OF SABIN ST, Windham, CT

Built 2020 Load: 58.6 t ADT: 772

DEFCO PARK ROAD

Good

Over: AMTRAK RAILROAD

500' WEST OF ROUTE 5, New Haven, CT

Built 1961 Load: 58.7 t ADT: 4,480

ROUTE 74

Good

Over: KNOWLTON BROOK

1.5 MILE WEST OF ROUTE 44, Windham, CT

Built 1939 Load: 58.7 t ADT: 4,600

ROUTE 219

Good

Over: NEPAUG RIVER

0.6 MILE NORTH OF RTE 202, Litchfield, CT

Built 1988 Load: 58.8 t ADT: 3,400

RUBBER AVENUE EXT.

Good

Over: LONG MEADOW POND BROOK

OVER LONG MEADOW POND BRK, New Haven, CT

Built 1956 Load: 58.9 t ADT: 2,600

ROUTE 37

Good

Over: PADANARAM BROOK

0.3 MI NORTH OF I-84, Fairfield, CT

Built 1960 Load: 59.0 t ADT: 20,800

ROUTE 15

Good

Over: MILL RIVER

0.5 MI S OF ROUTE 58, Fairfield, CT

Built 2010 Load: 59.3 t ADT: 70,000

OLD NORWALK ROAD

Good

Over: FIVE MILE RIVER

100' EAST OF MAIN STREET, Fairfield, CT

Built 1956 Load: 59.3 t ADT: 3,825

DINGS ROAD

Good

Over: NEPAUG RIVER

100FT W OF CARPENTER ROAD, Litchfield, CT

Built 1956 Load: 59.3 t ADT: 270

WHITES WOODS RD #1

Good

Over: BANTAM RIVER

OVER BANTAM RIVER, Litchfield, CT

Built 2017 Load: 59.3 t ADT: 520

RESERVOIR ROAD

Good

Over: MENUNKETESUCK RIVER

0.4 MI N. OF ROUTE 80, Middlesex, CT

Built 2009 Load: 59.3 t ADT: 306

ROUTE 183

Good

Over: SANDY BROOK

1.5 MILE SO OF NORFOLK TL, Litchfield, CT

Built 1958 Load: 59.6 t ADT: 550

U.S. ROUTE 6

Good

Over: LITTLE RIVER

1 MILE EAST OF ROUTE 97, Windham, CT

Built 1949 Load: 59.6 t ADT: 6,400

PACKERVILLE ROAD

Good

Over: MILL BROOK

1.5 MI SOUTH OF ROUTE 14A, Windham, CT

Built 1850 Load: 59.6 t ADT: 994

INTERSTATE-95

Good

Over: LIBERTY STREET NO. 1

0.5 MI N OF ROUTE 81, Middlesex, CT

Built 1957 Load: 59.9 t ADT: 60,600

VELVET STREET

Good

Over: MUDDY RIVER

0.5 Mi. West of Rte 17, New Haven, CT

Built 1988 Load: 59.9 t ADT: 1,400

I-384 WB ON RAMP

Good

Over: HOP BROOK & BIKE PATH

EXIT 3 RAMP FROM SR 534, Hartford, CT

Built 1969 Load: 60.2 t ADT: 4,800

EMMONS LANE

Good

Over: WHITING RIVER

SOUTH OF CANAAN VALLEY RD, Litchfield, CT

Built 2009 Load: 60.2 t ADT: 255

US ROUTE 7

Good

Over: HOUSATONIC RIVER

T.L. CANAAN & SALISBURY, Litchfield, CT

Built 1931 Load: 60.3 t ADT: 3,500

CROSS ROAD

Good

Over: STILL RIVER

700' EAST OF US ROUTE 7, Litchfield, CT

Built 1993 Load: 60.3 t ADT: 663

INTERSTATE-91 NB

Good

Over: STODDARD AVENUE

RTE5 TO BROADWY TO ELM ST, New Haven, CT

Built 1965 Load: 60.5 t ADT: 95,200

TUFTS DRIVE

Good

Over: TUCKER BROOK

0.5 MI S OF MEADOWBROOK, Hartford, CT

Built 2005 Load: 60.6 t ADT: 530

SR 617

Good

Over: SHUNOCK RIVER

0.4 MI E OF ROUTE 2, New London, CT

Built 1970 Load: 60.6 t ADT: 1,500

OLIVE STREET

Good

Over: AMTRAK RAILROAD

100' EAST OF STATE STREET, New Haven, CT

Built 1998 Load: 60.7 t ADT: 4,800

ROUTE 82

Good

Over: HEMLOCK VALLEY BROOK

1.5 MI E OF ROUTE 151, Middlesex, CT

Built 2017 Load: 60.9 t ADT: 2,700

CANAL STREET

Good

Over: PEQUABUCK RIVER

0.2 MILE WEST OF ROUTE 72, Litchfield, CT

Built 2008 Load: 61.0 t ADT: 2,700

INTERSTATE 84 WEST

Good

Over: CENTER STREET

.17 MI W OF HOUSATONIC RV, Fairfield, CT

Built 1977 Load: 61.2 t ADT: 36,800

ROUTE 71

Good

Over: MATTABESSET RIVER

1.5 MI NORTH OF ROUTE 71A, Hartford, CT

Built 1974 Load: 61.2 t ADT: 2,400

INTERSTATE-95

Good

Over: COPSE ROAD

0.5 MI SOUT OF ROUTE 79, New Haven, CT

Built 1957 Load: 61.2 t ADT: 57,100

SPRING STREET

Good

Over: HOCKANUM RIVER

75FT FR JCT WEST MAIN ST, Tolland, CT

Built 2010 Load: 61.2 t ADT: 1,489

US ROUTE 6

Good

Over: RAILROAD (ABANDONED)

1.06 MI WEST COLUMBIA TL, Tolland, CT

Built 2000 Load: 61.2 t ADT: 17,100

I-384 WB OFF RAMP

Good

Over: HOP BROOK & BIKE PATH

EXIT 3 OFF RAMP TO SR 534, Hartford, CT

Built 1969 Load: 61.5 t ADT: 1,300

HOLABIRD AVENUE

Good

Over: STILL RIVER

250 FT EAST OF ROUTE 8, Litchfield, CT

Built 2018 Load: 61.6 t ADT: 3,309

WINTHROP ROAD

Good

Over: FALLS RIVER

1.8 MI S OF ROUTE 80, Middlesex, CT

Built 2016 Load: 61.6 t ADT: 210

PARKWAY SOUTH

Good

Over: JORDAN BROOK

0.7 MI E. OF CROSS ROAD, New London, CT

Built 1964 Load: 61.6 t ADT: 468

ROUTE 59

Good

Over: HORSE TAVERN BROOK

2.2 MI S OF ROUTE 15, Fairfield, CT

Built 1949 Load: 61.7 t ADT: 9,000

MARION ROAD

Good

Over: TEN MILE RIVER

0.2 MI W OF ROUTE 70, New Haven, CT

Built 1991 Load: 61.8 t ADT: 668

I-91 SB ON RAMP

Good

Over: AMTRAK RAILROAD

EXIT 34 RAMP FROM RTE 159, Hartford, CT

Built 1990 Load: 61.9 t ADT: 4,900

US ROUTE 7 SB

Good

Over: STILL RIVER

.56 MI S OF US 202 JCT., Fairfield, CT

Built 1975 Load: 62.0 t ADT: 14,700

BLATCHLEY AVENUE

Good

Over: AMTRAK RAILROAD

.1 MILES SOUTH ROUTE 5, New Haven, CT

Built 1989 Load: 62.0 t ADT: 3,770

REMINGTON STREET

Good

Over: STONY BROOK

75 FEET N OF PROSPECT ST, Hartford, CT

Built 2020 Load: 62.2 t ADT: 2,525

STANFORD DRIVE

Good

Over: TUCKER BROOK

50 FT EAST OF VERNON ST, Hartford, CT

Built 1998 Load: 62.2 t ADT: 148

SHERMAN AVENUE

Good

Over: FARMINGTON CANAL GREENWA

0.2 MI W OF ROUTE 10, New Haven, CT

Built 1980 Load: 62.2 t ADT: 8,400

WAWECUS STREET

Good

Over: YANTIC RIVER

0.5 MILE SOUTH OF SR 642, New London, CT

Built 1959 Load: 62.2 t ADT: 3,093

SOUTH STREET

Good

Over: HOP RIVER

450FT FR JCT RTE 6, Tolland, CT

Built 1900 Load: 62.2 t ADT: 1,500

ROUTE 2

Good

Over: DICKERSON CREEK

.3 MI EAST OF WEST RD, Hartford, CT

Built 1964 Load: 62.5 t ADT: 40,200

JONES HOLLOW ROAD

Good

Over: BLACKLEDGE RIVER

3.6 MILES NORTH OF RTE 66, Hartford, CT

Built 2020 Load: 62.5 t ADT: 300

SHARON ROAD

Good

Over: MAD RIVER

.3 MI EAST OF ROUTE 69, New Haven, CT

Built 1975 Load: 62.5 t ADT: 8,600

Showing 3,901-3,950 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.