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 20

Good

Over: SALMON BROOK

0.6 MI EAST OF RTE 10/202, Hartford, CT

Built 1940 Load: 71.9 t ADT: 12,500

BARBER HILL ROAD

Good

Over: MOOSUP RIVER

300 FT SOUTH OF ROUTE 14, Windham, CT

Built 1930 Load: 72.7 t ADT: 402

NORTH STERLING RD

Good

Over: QUANDUCK BROOK

600' FROM JCT MAIN STREET, Windham, CT

Built 1940 Load: 72.7 t ADT: 490

SANDY BROOK ROAD

Good

Over: SANDY BROOK

1.9 MILES E OF ROUTE 183, Litchfield, CT

Built 2023 Load: 72.9 t ADT: 670

VILLAGE HILL ROAD

Good

Over: ROARING BROOK

0.4 MI EAST OF ROUTE 32, Tolland, CT

Built 2003 Load: 72.9 t ADT: 806

US ROUTE 202

Good

Over: BANTAM RIVER

.75 MI E OF JCT RTE 63, Litchfield, CT

Built 2019 Load: 73.9 t ADT: 3,600

U.S. ROUTE 1

Good

Over: NOROTON RIVER

AT THE DARIEN TOWN LINE, Fairfield, CT

Built 1913 Load: 74.2 t ADT: 7,900

US ROUTE 7

Good

Over: ROCKY RIVER

1MI SO OF JCT BOARDMAN RD, Litchfield, CT

Built 1988 Load: 74.6 t ADT: 9,000

ROSE HILL AVENUE

Good

Over: STILL RIVER

ADJ.TO STETSON HATFACTORY, Fairfield, CT

Built 2008 Load: 74.8 t ADT: 7,440

COMLY AVENUE

Good

Over: BYRAM RIVER

OVER BYRAM RIVER, Fairfield, CT

Built 1959 Load: 75.0 t ADT: 2,483

RTE 106 (WOLFPIT R

Good

Over: NORWALK RIVER

0.25 MI S JCT RT7 & RT33, Fairfield, CT

Built 1996 Load: 75.3 t ADT: 5,900

ROUTE 150

Good

Over: WHARTON BROOK

1.5 MI NE OF I-91, New Haven, CT

Built 2019 Load: 76.1 t ADT: 8,500

INTERSTATE-84 EB

Good

Over: RAILS TO TRAILS PATHWAY

0.5 MILE WEST OF EXIT 66, Tolland, CT

Built 2009 Load: 76.1 t ADT: 46,100

ROMFORD ROAD

Good

Over: SHEPAUG RIVER

0.8 MI S OF US ROUTE 202, Litchfield, CT

Built 2018 Load: 76.5 t ADT: 393

LOUISIANA AVENUE

Good

Over: COPPER MINE BROOK

200' FR JCT BROOK STREET, Hartford, CT

Built 2021 Load: 76.8 t ADT: 4,763

MAPLE AVENUE

Good

Over: ALLYN BROOK

0.20 MI S OF ROUTE 68, Middlesex, CT

Built 1957 Load: 77.1 t ADT: 1,124

SAW MILL HILL ROAD

Good

Over: ROUNDS BROOK

0.5 MI WEST OF RHODE ISL., Windham, CT

Built 1984 Load: 77.7 t ADT: 340

SR 800 (MAIN ST)

Good

Over: EAST BRANCH NAUGATUCK RV

0.1 MILE SOUTH OF ROUTE 4, Litchfield, CT

Built 1987 Load: 78.4 t ADT: 8,300

INTERSTATE 95

Good

Over: WARREN STREET

INTERSTATE 95 EXIT 27, Fairfield, CT

Built 1959 Load: 79.4 t ADT: 85,600

ROUTE 80

Good

Over: FARM RIVER

1.2 MI E OF ROUTE 100, New Haven, CT

Built 2020 Load: 79.7 t ADT: 12,100

BOZRAH STREET EXT

Good

Over: FITCHVILLE POND

700 FT E OF ROUTE 163, New London, CT

Built 1930 Load: 79.7 t ADT: 2,734

SR 827 (SOUTH KENT

Good

Over: HOUSATONIC RAILROAD

1000'EA OF JCT SPOONER HL, Litchfield, CT

Built 1935 Load: 79.8 t ADT: 900

EDWARDS STREET

Good

Over: CENTRAL NEW ENGLAND RR

350' (N) OF INT MYRTLE ST, Hartford, CT

Built 1912 Load: 80.7 t ADT: 3,300

EAGLE ROAD

Good

Over: INTERNATIONAL DRIVE

EAGLE ROAD SHOPPING CNTR, Fairfield, CT

Built 2009 Load: 81.6 t ADT: 12,260

US ROUTE 6

Good

Over: SNAKE MEADOW BROOK

3 MI WEST OF R.I., Windham, CT

Built 1950 Load: 82.6 t ADT: 7,500

ROUTE 14

Good

Over: MOOSUP RIVER

100' WEST OF MAIN STR., Windham, CT

Built 2021 Load: 83.6 t ADT: 2,400

INTERSTATE-84 & Pl

Good

Over: BEAVER POND BROOK

.1MI E OF HARPRS FERRY RD, New Haven, CT

Built 2018 Load: 83.9 t ADT: 92,200

INTERSTATE-95

Good

Over: VALLEY RAILROAD

0.1 MI S OF ROUTE 154, Middlesex, CT

Built 1957 Load: 84.6 t ADT: 61,700

PICKET LANE

Good

Over: HERSIG BROOK

0.1 m S of Maiden Lane, Middlesex, CT

Built 2022 Load: 84.6 t ADT: 1,900

US ROUTE 1

Good

Over: JORDAN BROOK

0.9 MI S OF ROUTE 156, New London, CT

Built 1916 Load: 87.5 t ADT: 8,100

U.S. ROUTE 6

Good

Over: EAST MEADOW BROOK

0.7 MILE EAST OF ROUTE 47, Litchfield, CT

Built 2007 Load: 89.1 t ADT: 5,600

US ROUTE 1

Good

Over: YELLOW MILL CHANNEL

0.6 MI N OF ROUTE 127, Fairfield, CT

Built 1910 Load: 91.0 t ADT: 25,800

ROUTE 341

Good

Over: MACEDONIA BROOK

2.19 MI E OF NEW YORK SL, Litchfield, CT

Built 2011 Load: 91.4 t ADT: 1,500

ROUTE 69

Good

Over: MAD RIVER

0.5 MI S OF ROUTE 322, New Haven, CT

Built 2021 Load: 91.4 t ADT: 12,400

DERBY-MILFORD ROAD

Good

Over: WEPAWAUG RIVER

50 FT N OF ROUTE 121, New Haven, CT

Built 2019 Load: 92.0 t ADT: 7,200

KNOTTER DRIVE

Good

Over: JUDD BROOK

0.2 MI S OF I-691, New Haven, CT

Built 1971 Load: 92.3 t ADT: 3,638

ROUTE 9 SOUTHBOUND

Good

Over: BASS BROOK

0.2 MI (N) OF ROUTE 175, Hartford, CT

Built 1991 Load: 92.4 t ADT: 23,400

ROUTE 9 NORTHBOUND

Good

Over: BASS BROOK

0.2 MILE (N) OF ROUTE 175, Hartford, CT

Built 1991 Load: 92.4 t ADT: 25,300

ROUTE 4

Good

Over: W BRANCH LEADMINE BROOK

100 FT E OF TORRINGTON TL, Litchfield, CT

Built 1959 Load: 96.9 t ADT: 8,500

ARCTIC STREET

Good

Over: PEMBROKE LAKES

0.3 MI S OF US ROUTE 1, Fairfield, CT

Built 2017 Load: 97.2 t ADT: 2,700

EVANS HILL ROAD

Good

Over: WIMISINK BROOK

INT RTE55 GOLF COURSE ENT, Fairfield, CT

Built 2002 Load: 97.2 t ADT: 368

ROUTE 94

Good

Over: BLACKLEDGE RIVER

.34 MI WEST OF HEBRON TL, Hartford, CT

Built 1956 Load: 97.2 t ADT: 4,000

ROUTE 2

Good

Over: HUBBARD BROOK

0.20 (E) COMMERCE ST, Hartford, CT

Built 1964 Load: 97.2 t ADT: 70,300

TOMLINSON AVENUE

Good

Over: QUINNIPIAC RIVER

600' FROM CYRENUS STREET, Hartford, CT

Built 2022 Load: 97.2 t ADT: 2,790

INTERSTATE-384 EB

Good

Over: BIKEWAY

300 FT WEST OF EXIT 1, Hartford, CT

Built 1986 Load: 97.2 t ADT: 41,800

TOBEY AVENUE

Good

Over: DECKERS BROOK

0.3 MILES WEST OF RTE 159, Hartford, CT

Built 1955 Load: 97.2 t ADT: 262

MEADOWBROOK DRIVE

Good

Over: DRAINAGE

100' East of Chatham Dr., Hartford, CT

Built 1995 Load: 97.2 t ADT: 2,121

ROUTE 341

Good

Over: BOG HOLLOW BROOK

500' E OF MACEDONIA BK RD, Litchfield, CT

Built 2011 Load: 97.2 t ADT: 1,300

MILTON ROAD

Good

Over: MARSHEPAUG RIVER

SOUTH OF SHEAR SHOP ROAD, Litchfield, CT

Built 1940 Load: 97.2 t ADT: 477

ROUTE 254

Good

Over: NORTHFIELD BROOK

600'N OF INT.OF 254 & 807, Litchfield, CT

Built 1970 Load: 97.2 t ADT: 5,800

Showing 4,001-4,050 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.