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

SR 800

Good

Over: BURR POND BROOK

1.25 MI SO WINCHESTER TL, Litchfield, CT

Built 1996 Load: 32.7 t ADT: 5,300

BEMIS STREET

Good

Over: PEQUABUCK RIVER

1 MI WEST OF RTE 72, Litchfield, CT

Built 2004 Load: 32.7 t ADT: 1,442

ECHO LAKE ROAD #1

Good

Over: STEELE BROOK

.3 MI EAST OF RTE 63, Litchfield, CT

Built 1929 Load: 32.7 t ADT: 5,600

CATLIN ROAD

Good

Over: LAKE HARWINTON DAM

N OF 118 OFF DAVIS ROAD, Litchfield, CT

Built 2009 Load: 32.7 t ADT: 174

RIVER ROAD

Good

Over: LITTLE JACKS BROOK

BTWN HIGH BR RD& SOUTH ST, Litchfield, CT

Built 1934 Load: 32.7 t ADT: 518

WILSON ROAD

Good

Over: GULF STREAM

INTERSECTION TOLLGATE RD., Litchfield, CT

Built 2001 Load: 32.7 t ADT: 190

TRUMBULL STREET

Good

Over: BANTAM RIVER

50 FT S. OF ROUTE 202, Litchfield, CT

Built 1986 Load: 32.7 t ADT: 125

ROUTE 272

Good

Over: HALL MEADOW BROOK

AT GOSHEN TOWN LINE, Litchfield, CT

Built 1987 Load: 32.7 t ADT: 1,000

NONNEWAUG ROAD

Good

Over: EAST SPRING BROOK

50 EAST OF PORTER HILL RD, Litchfield, CT

Built 1988 Load: 32.7 t ADT: 3,400

MAPLE HOLLOW ROAD

Good

Over: NORTH NEPAUG RIVER

1 MILE NORTH OF ROUTE 202, Litchfield, CT

Built 1987 Load: 32.7 t ADT: 540

ASHPOHTAG ROAD

Good

Over: NORTH BROOK

200' NORTH OF ROUTE 44, Litchfield, CT

Built 1979 Load: 32.7 t ADT: 117

ROUTE 63

Good

Over: HOLLENBECK RIVER O/FLOW

.25 MI NORTH OF ROUTE 126, Litchfield, CT

Built 1992 Load: 32.7 t ADT: 1,600

WOODWARD ROAD

Good

Over: EAST MORRIS BROOK

0.2 M SOUTH JUNC SR109, Litchfield, CT

Built 1997 Load: 32.7 t ADT: 536

RIVERVIEW ROAD

Good

Over: BULL MOUNTAIN BROOK

350 FT N OF STATION ROAD, Litchfield, CT

Built 2018 Load: 32.7 t ADT: 104

FALLS AVENUE NO. 2

Good

Over: TURKEY BROOK

0.1 MI N OF SUNNYSIDE AVE, Litchfield, CT

Built 2005 Load: 32.7 t ADT: 2,200

CAMPS FLAT ROAD

Good

Over: BULL MOUNTAIN BROOK

.01 mi. West of Mud Pond, Litchfield, CT

Built 1989 Load: 32.7 t ADT: 1,060

FLAT ROCKS ROAD

Good

Over: W BRANCH SHEPAUG RIVER

+/- 2 MI west of Rte. 45, Litchfield, CT

Built 2017 Load: 32.7 t ADT: 53

NORTH MAIN STREET

Good

Over: GREAT BROOK

0.3 MI N OF ROUTE 148, Middlesex, CT

Built 2001 Load: 32.7 t ADT: 800

CARTER HILL ROAD

Good

Over: MENUNKETESUCK RIVER

335 FT S OF VALLEY RD, Middlesex, CT

Built 2022 Load: 32.7 t ADT: 352

NORTH MAIN STREET

Good

Over: GREAT BROOK

0.3 MI N OF ROUTE 148, Middlesex, CT

Built 1983 Load: 32.7 t ADT: 800

MAIN ST. #2

Good

Over: BROOK

50 E OF CHENEY ST, Middlesex, CT

Built 1983 Load: 32.7 t ADT: 3,442

DEPOT ROAD

Good

Over: CANDLEWOOD HILL BROOK

30 FT N OF ROUTE 154, Middlesex, CT

Built 1986 Load: 32.7 t ADT: 469

BOULDER DELL ROAD

Good

Over: BIBLE ROCK BROOK

100 FT E OF ROUTE 154, Middlesex, CT

Built 1986 Load: 32.7 t ADT: 57

MILL STREET

Good

Over: LONG HILL BROOK

0.2 MI N. OF ROUTE 17, Middlesex, CT

Built 2001 Load: 32.7 t ADT: 1,544

BOARDMAN LANE NO 1

Good

Over: SAWMILL BROOK

0.3 MI W OF MIDDLE STREET, Middlesex, CT

Built 1981 Load: 32.7 t ADT: 168

ROUTE 68

Good

Over: COGINCHAUG RIVER

0.5 MILE WEST OF ROUTE 17, Middlesex, CT

Built 1989 Load: 32.7 t ADT: 8,900

HERITAGE BOULEVARD

Good

Over: MINER BROOK

400 FT W OF ROUTE 217, Middlesex, CT

Built 1986 Load: 32.7 t ADT: 330

GRAPEVINE ROAD

Good

Over: CANDLEWOOD HILL BROOK

0.1 MI N CANDLEWOOD H.RD, Middlesex, CT

Built 1990 Load: 32.7 t ADT: 254

ROUTE 148

Good

Over: PATTACONK BROOK

0.2 MI W OF ROUTE 9, Middlesex, CT

Built 1991 Load: 32.7 t ADT: 4,800

NORTH MAIN STREET

Good

Over: GREAT BROOK

540 FT N OF ROUTE 148, Middlesex, CT

Built 1990 Load: 32.7 t ADT: 800

HAYWARDVILLE ROAD

Good

Over: EIGHT MILE RIVER

0.2 MI E OF SSR 434, Middlesex, CT

Built 1970 Load: 32.7 t ADT: 1,000

WILCOX HILL ROAD

Good

Over: RESERVOIR BROOK

200 FT. EAST OF ROUTE 17, Middlesex, CT

Built 1995 Load: 32.7 t ADT: 228

MAIN STREET

Good

Over: POCOTOPAUG CREEK

0.5 MI N OF ROUTE 16, Middlesex, CT

Built 2009 Load: 32.7 t ADT: 3,646

INTERSTATE 95

Good

Over: CANAL DOCK ROAD

0.5 MI S OF US ROUTE 1, New Haven, CT

Built 2015 Load: 32.7 t ADT: 187,800

ROUTE 22

Good

Over: BRANFORD RIVER

425 FT E OF ROUTE 80, New Haven, CT

Built 1928 Load: 32.7 t ADT: 6,400

W DAYTON HILL RD

Good

Over: MUDDY RIVER

0.1 MI. W OF ROUTE 150, New Haven, CT

Built 2007 Load: 32.7 t ADT: 985

COOPER STREET

Good

Over: HARBOR BROOK

430 FT E OF ROUTE 71, New Haven, CT

Built 2021 Load: 32.7 t ADT: 1,275

SAW MILL ROAD

Good

Over: WEST RIVER

425 FT N OF HUBBARD RD, New Haven, CT

Built 2021 Load: 32.7 t ADT: 369

FLAT MEADOW ROAD

Good

Over: WEST RIVER

330 FT W OF ROUTE 77, New Haven, CT

Built 1999 Load: 32.7 t ADT: 2,700

BURR STREET

Good

Over: TUTTLE BROOK

100' W OF GERRISH AVENUE, New Haven, CT

Built 1978 Load: 32.7 t ADT: 2,209

LAKEMERE DRIVE

Good

Over: LEE BROOK

2 MI S TROOP A BARRACKS, New Haven, CT

Built 2001 Load: 32.7 t ADT: 630

OLD LANE ROAD

Good

Over: MILL RIVER

0.5 MI E OF ROUTE 10, New Haven, CT

Built 1985 Load: 32.7 t ADT: 306

ROUTE 67

Good

Over: LITTLE RIVER

5.3 MI W OF ROUTE 8, New Haven, CT

Built 1986 Load: 32.7 t ADT: 10,100

JEWETT STREET

Good

Over: BEAVER BROOK

0.7 MI N OF ROUTE 243, New Haven, CT

Built 2001 Load: 32.7 t ADT: 2,200

FENN ROAD

Good

Over: HOP BROOK

165 FT W OF REGAN ROAD, New Haven, CT

Built 1983 Load: 32.7 t ADT: 209

TUCKER HILL ROAD

Good

Over: HOP BROOK

200 FT S. OF ROUTE 64, New Haven, CT

Built 1989 Load: 32.7 t ADT: 1,500

MT SANFORD ROAD #2

Good

Over: WILLOW BROOK

0.5 MI W OF ROUTE 10, New Haven, CT

Built 1988 Load: 32.7 t ADT: 689

COOK HILL ROAD

Good

Over: MILL RIVER

0.5 MI E OF ROUTE 10, New Haven, CT

Built 1990 Load: 32.7 t ADT: 4,600

HARRISON ROAD

Good

Over: MUNGER BROOK

0.2 MI EAST OF ROUTE 139, New Haven, CT

Built 1985 Load: 32.7 t ADT: 1,135

ROUTE 17

Good

Over: BROOK

1.7 MI N OF ROUTE 22, New Haven, CT

Built 1990 Load: 32.7 t ADT: 7,500

Showing 3,251-3,300 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.