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

WATER STREET

Good

Over: HOUSATONIC RIVER

CANAAN-SALISBURY TOWNLINE, Litchfield, CT

Built 2016 Load: 34.3 t ADT: 280

COBBLE ROAD

Good

Over: COBBLE BROOK

0.1 MI SOUTH JUNC US 7, Litchfield, CT

Built 2011 Load: 34.3 t ADT: 161

SHEAR SHOP ROAD

Good

Over: MASHEPAUG RIVER

0.2 mi North of Milton Rd, Litchfield, CT

Built 2008 Load: 34.3 t ADT: 100

OLD RTE 254-UPPER

Good

Over: NORTHFIELD BROOK

4.8 KM SW OF THOMASTON, Litchfield, CT

Built 1955 Load: 34.3 t ADT: 60

DISH MILL ROAD

Good

Over: PONSET BROOK

160 FT W OF ROUTE 81, Middlesex, CT

Built 1963 Load: 34.3 t ADT: 153

ROUTE 156

Good

Over: EIGHT MILE RIVER

0.3 E OF ROUTE 82, New London, CT

Built 1986 Load: 34.3 t ADT: 2,700

MAIN PARK ROAD

Good

Over: E.BRANCH NAUGATUCK RIVER

0.5 MI S OF NEWFIELD ROAD, Litchfield, CT

Built 1969 Load: 34.5 t ADT: 1

ROUTE 72

Good

Over: MARSH BROOK

0.5 MILE NORTH OF ROUTE 6, Litchfield, CT

Built 2015 Load: 34.7 t ADT: 3,400

ROUTE 15

Good

Over: MILL RIVER

0.1 MI N OF SR 717, New Haven, CT

Built 1943 Load: 34.7 t ADT: 72,300

US ROUTE 1

Good

Over: PATTAGANSETT RIVER

0.6 MI S OF ROUTE 161, New London, CT

Built 2017 Load: 34.7 t ADT: 7,300

MOSHER STREET

Good

Over: AMTRAK RAILROAD

0.4 MI E OF ROUTE 215, New London, CT

Built 1936 Load: 34.7 t ADT: 3,680

WRIGHTS CROSSING R

Good

Over: MASHAMOQUET BROOK

.2 MI NORTH OF ROUTE 101, Windham, CT

Built 1999 Load: 34.7 t ADT: 643

FLAT ROCK PLACE

Good

Over: WETLANDS

0.2 MI EAST OF ROUTE 153, Middlesex, CT

Built 1996 Load: 35.0 t ADT: 3,518

INTERSTATE-95

Good

Over: NECK RIVER

0.9 MI S OF ROUTE 79, New Haven, CT

Built 1957 Load: 35.0 t ADT: 72,100

WILLOW ROAD

Good

Over: FARM RIVER

0.1 MI EAST OF RTE #100, New Haven, CT

Built 1980 Load: 35.0 t ADT: 828

GIBSON HILL ROAD

Good

Over: QUANDUCK BROOK

100' SOUTH OF RIVER ROAD, Windham, CT

Built 1950 Load: 35.0 t ADT: 518

US ROUTE 44

Good

Over: ABINGTON BROOK

0.4 MILE EAST OF ROUTE 97, Windham, CT

Built 1942 Load: 35.2 t ADT: 6,600

PARK STREET

Good

Over: ABANDONED RAILROAD

AT INTERSECTION W/ NEW ST, Hartford, CT

Built 1941 Load: 35.3 t ADT: 1,887

US ROUTE 44

Good

Over: HOUSATONIC RIVER

INT US 44 & CT RTE 126, Litchfield, CT

Built 1990 Load: 35.3 t ADT: 4,300

WEST MAIN STREET

Good

Over: HOCKANUM RIVER

500 FEET EAST OF SR 527, Tolland, CT

Built 2014 Load: 35.3 t ADT: 697

HANOVER ROAD

Good

Over: HOUSATONIC RAILROAD

JCT OF BLVD & HANOVER RD, Fairfield, CT

Built 1919 Load: 35.4 t ADT: 1,300

SOUTH MAIN STREET

Good

Over: MOOSUP RIVER

2000' WEST OF ROUTE 14, Windham, CT

Built 1997 Load: 35.4 t ADT: 2,482

ASH CREEK BLVD

Good

Over: MNRR & CONST COMMENT WAY

0.2 MI SOUTH ROUTE 1, Fairfield, CT

Built 2010 Load: 35.5 t ADT: 4,373

ROUTE 213

Good

Over: AMTRAK RAILROAD

1.0 MI S OF US ROUTE 1, New London, CT

Built 1930 Load: 35.5 t ADT: 11,000

ONEIDA DRIVE

Good

Over: SMITH COVE

0.25 MILE SOUTH OF I-95, Fairfield, CT

Built 2021 Load: 35.6 t ADT: 220

STILLWELL DRIVE

Good

Over: QUINNIPIAC RIVER

0.6 MI. SOUTH OF ROUTE 10, Hartford, CT

Built 2013 Load: 35.6 t ADT: 2,000

INTERSTATE-91 NB

Good

Over: MDC SEWER PIPE

UNDER CHARTER OAK BRIDGE, Hartford, CT

Built 1991 Load: 35.6 t ADT: 32,800

FORD HILL ROAD

Good

Over: HOLLENBECK RIVER

165 FT W. OF ROUTE 43, Litchfield, CT

Built 1955 Load: 35.6 t ADT: 191

SCHOOL GROUND ROAD

Good

Over: NOTCH HILL BROOK

0.3 MI N. OF US ROUTE 1, New Haven, CT

Built 1941 Load: 35.6 t ADT: 5,500

BITGOOD ROAD

Good

Over: PACHAUG RIVER

1850 FT N OF ROUTE 138, New London, CT

Built 2011 Load: 35.6 t ADT: 364

GOSHEN HILL ROAD #

Good

Over: BARTLETT BROOK

.7 MILES WEST OF RTE. 16, New London, CT

Built 2003 Load: 35.6 t ADT: 775

TOBACCO STREET

Good

Over: TEN MILE RIVER

1.75 WEST OF RTE 87, New London, CT

Built 2010 Load: 35.6 t ADT: 850

ROUTE 190

Good

Over: MIDDLE RIVER

2 MI EAST OF ROUTE 30, Tolland, CT

Built 1936 Load: 35.6 t ADT: 7,400

VALLEY ROAD

Good

Over: HORSE TAVERN BROOK

1000 FT EAST OF ROUTE 59, Fairfield, CT

Built 2019 Load: 36.0 t ADT: 1,250

US RTE 7 SB TR 801

Good

Over: PERRY AVENUE

US ROUTE 7 SB EXIT NO. 3, Fairfield, CT

Built 1990 Load: 36.0 t ADT: 2,900

ROUTE 15

Good

Over: LANE STREET

1.2 MILE WEST OF ROUTE 10, New Haven, CT

Built 1949 Load: 36.0 t ADT: 79,800

INTERSTATE-95

Good

Over: NAUGATUCK AVENUE

ABUTS N END OF 00135, New Haven, CT

Built 2016 Load: 36.0 t ADT: 88,400

ROUTE 2 EASTBOUND

Good

Over: CAMP MOWEEN ROAD

1.2 MILES WEST OF EXIT 22, New London, CT

Built 1970 Load: 36.0 t ADT: 11,900

LATHROP ROAD

Good

Over: LATHROP BROOK

0.1MI SO OF I-395, Windham, CT

Built 2017 Load: 36.0 t ADT: 2,018

ROUTE 110

Good

Over: FREEMAN BROOK

0.4 MI S OF ROUTE 15, Fairfield, CT

Built 2016 Load: 36.3 t ADT: 10,700

ROUTE 4

Good

Over: BLOODY BROOK

2.3 MI E OF ROUTE 7 OVLP, Litchfield, CT

Built 2014 Load: 36.3 t ADT: 2,900

U.S. ROUTE 6

Good

Over: SOUTH BROOK

0.2 MI W OF ROUTE 64, Litchfield, CT

Built 1973 Load: 36.3 t ADT: 11,700

WOOD CREEK ROAD

Good

Over: WEEKEEPEEMEE RIVER

0.2 MI EAST OF JUDGE LANE, Litchfield, CT

Built 1956 Load: 36.3 t ADT: 393

ROUTE 154

Good

Over: FALLS RIVER

0.6 MI S OF ROUTE 9, Middlesex, CT

Built 1982 Load: 36.3 t ADT: 5,800

ROUTE 17

Good

Over: PISTIPAUG POND BROOK

2.4 MI N. OF ROUTE 22, New Haven, CT

Built 2007 Load: 36.3 t ADT: 8,700

ROUTE 40 SB

Good

Over: HARTFORD TURNPIKE

AT EXIT 1 RTE 40, New Haven, CT

Built 1976 Load: 36.3 t ADT: 10,300

WESTFIELD ROAD

Good

Over: HARBOR BROOK

0.3 MI E OF US ROUTE 5, New Haven, CT

Built 1999 Load: 36.5 t ADT: 2,600

ROUTE 53

Good

Over: SAUGATUCK RIVER

2.6 MI N OF ROUTE 107, Fairfield, CT

Built 2016 Load: 36.6 t ADT: 3,900

ROUTE 15

Good

Over: PEQUONNOCK RIVER

0.3 MI N OF ROUTE 25, Fairfield, CT

Built 1935 Load: 36.6 t ADT: 67,000

FARMINGTON AVENUE

Good

Over: MATTABESSET RIVER

500 FT FROM JCT ROUTE 372, Hartford, CT

Built 2017 Load: 36.6 t ADT: 2,983

Showing 3,401-3,450 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.