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

NEW CITY ROAD

Good

Over: NEW CITY BROOK

0.4 MILE NORTH OF RTE 19, Tolland, CT

Built 2008 Load: 32.7 t ADT: 450

HATHEWAY ROAD

Good

Over: BROAD BROOK

0.3 MILE NORTH OF RTE 140, Tolland, CT

Built 1986 Load: 32.7 t ADT: 917

ROUTE 30

Good

Over: CRYSTAL LAKE BROOK

0.4 MI SOUTH OF ROUTE 190, Tolland, CT

Built 1988 Load: 32.7 t ADT: 3,800

SR 533 (TUNNEL RD)

Good

Over: TANKERHOOSEN RIVER

.5 MI S OF INTERSTATE-84, Tolland, CT

Built 1989 Load: 32.7 t ADT: 5,100

US ROUTE 44

Good

Over: BOLTON POND BROOK

0.3 MI W OF COVENTRY TL, Tolland, CT

Built 1989 Load: 32.7 t ADT: 9,600

SHENIPSIT LAKE RD

Good

Over: CHARTER BROOK

1.8 MI NORTH OF ROUTE 74, Tolland, CT

Built 1991 Load: 32.7 t ADT: 202

GURLEYVILLE ROAD

Good

Over: STREAM

.7 MILE EAST OF ROUTE 195, Tolland, CT

Built 1980 Load: 32.7 t ADT: 1,697

ROUTE 83 & 74

Good

Over: HOCKANUM RIVER

300' WEST OF WEST STREET, Tolland, CT

Built 1993 Load: 32.7 t ADT: 10,100

DEPOT ROAD

Good

Over: MILL BROOK

0.5 MILE FROM JCT RTE 32, Tolland, CT

Built 1996 Load: 32.7 t ADT: 491

PINE ROAD

Good

Over: CRYSTAL LAKE BROOK

150 FT. EAST OF ROUTE 30, Tolland, CT

Built 1999 Load: 32.7 t ADT: 124

HUNTING LODGE ROAD

Good

Over: CEDAR SWAMP BROOK

.1 MI E OF HUNTING HT DR, Tolland, CT

Built 1990 Load: 32.7 t ADT: 4,400

NINTH DISTRICT ROA

Good

Over: GULF STREAM

0.2 MI SOUTH OF ROUTE 190, Tolland, CT

Built 2014 Load: 32.7 t ADT: 3,800

BEECHER ROAD

Good

Over: BLACKWELL BROOK

.4 MI E OF ROUTE 169, Windham, CT

Built 2000 Load: 32.7 t ADT: 1,135

WAUREGAN ROAD

Good

Over: BLACKWELL BROOK

3400FT FR JCT ROUTE 169, Windham, CT

Built 1930 Load: 32.7 t ADT: 572

SAND HILL ROAD

Good

Over: LITTLE RIVER

0.3 MI EAST OF BIGELOW RD, Windham, CT

Built 1996 Load: 32.7 t ADT: 250

COOK HILL ROAD

Good

Over: WHETSTONE BROOK

350' SOUTH OF ROUTE 101, Windham, CT

Built 2002 Load: 32.7 t ADT: 614

ROUTE 244

Good

Over: STILL RIVER

.2 MILE EAST OF ROUTE 198, Windham, CT

Built 1991 Load: 32.7 t ADT: 2,200

ROUTE 32

Good

Over: LARRABE BROOK

300 FT SOUTH OF ROUTE 203, Windham, CT

Built 2003 Load: 32.7 t ADT: 8,600

US ROUTE 7

Good

Over: NORWALK RIVER

0.6 MI N OF ROUTE 33 JCT, Fairfield, CT

Built 2008 Load: 33.0 t ADT: 20,000

SPRING STREET

Good

Over: QUINNIPIAC RIVER

0.6 MI W. OF ROUTE 10, Hartford, CT

Built 2022 Load: 33.0 t ADT: 4,105

ROUTE 322

Good

Over: LINDSLEY BROOK

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

Built 2013 Load: 33.0 t ADT: 4,800

U.S. ROUTE 44

Good

Over: WEST NORFOLK BROOK

0.8 MI E OF NO. CANAAN TL, Litchfield, CT

Built 2008 Load: 33.3 t ADT: 4,600

SKILTON ROAD

Good

Over: NONEWAUG RIVER

OFF GUERNSEYTOWN ROAD, Litchfield, CT

Built 1860 Load: 33.4 t ADT: 394

LOWER RIVER RD #1

Good

Over: MILL BROOK

200 FT N OF RTE 128, Litchfield, CT

Built 2012 Load: 33.4 t ADT: 100

ROUTE 154

Good

Over: CHESTER CREEK

320 FT S OF ROUTE 148, Middlesex, CT

Built 2010 Load: 33.4 t ADT: 4,400

ROUTE 217

Good

Over: MATTABESSET RIVER

JCT OF ROUTE 372, Middlesex, CT

Built 2004 Load: 33.4 t ADT: 14,900

ROUTE 148

Good

Over: GREAT BROOK

0.7 MI W OF ROUTE 154, Middlesex, CT

Built 2012 Load: 33.4 t ADT: 1,600

FLAT ROCK PLACE

Good

Over: WETLANDS

0.4 MI E OF ROUTRE 153, Middlesex, CT

Built 1996 Load: 33.4 t ADT: 3,380

ROUTE 150

Good

Over: MUDDY RIVER

1.4 MI S OF I-91, New Haven, CT

Built 1938 Load: 33.4 t ADT: 4,300

WATER STREET

Good

Over: MOOSUP RIVER

0.1 MI SOUTH OF ROUTE 14, Windham, CT

Built 1997 Load: 33.6 t ADT: 1,491

ROUTE 15

Good

Over: HOUSATONIC RIVER & MNRR

RTE 15 BETWEEN EX 53 & 54, Fairfield, CT

Built 2004 Load: 33.7 t ADT: 98,800

ROUTE 72

Good

Over: PEQUABUCK RIVER

0.1 MILE EAST OF RTE 229, Hartford, CT

Built 2009 Load: 33.7 t ADT: 8,400

PALMER BRIDGE ST

Good

Over: NAUGATUCK RIVER

500' EAST OF ROUTE 800, Litchfield, CT

Built 1961 Load: 33.7 t ADT: 1,854

INTERSTATE-84

Good

Over: BEAVER POND BROOK

0.3 MI W OF SCOTT ROAD, New Haven, CT

Built 1960 Load: 33.7 t ADT: 92,200

US ROUTE 1

Good

Over: BROOK

AT OLD POST ROAD, New London, CT

Built 2016 Load: 33.7 t ADT: 3,700

ROUTE 66

Good

Over: NATCHAUG RIVER

.5 MI EAST JCT 195 & 14, Windham, CT

Built 2020 Load: 33.7 t ADT: 7,800

SIMPAUG TURNPIKE

Good

Over: METRO-NORTH RAILROAD

300-FT EAST O MARCHANT RD, Fairfield, CT

Built 2012 Load: 33.9 t ADT: 1,800

ROUTE 8 NORTHBOUND

Good

Over: ARMSTRONG ROAD

2.5 NORTH OF ROUTE 15, Fairfield, CT

Built 1975 Load: 34.0 t ADT: 31,800

WEST MAIN STREET

Good

Over: QUINNIPIAC RIVER

760 FT W OF ROUTE 10, Hartford, CT

Built 1979 Load: 34.0 t ADT: 8,300

TUNNEL ROAD

Good

Over: KIRBY BROOK

SOUTH OF SPRINGHILL ROAD, Litchfield, CT

Built 1956 Load: 34.0 t ADT: 31

ROUTE 47

Good

Over: SPRAIN BROOK

2 MILES NO. OF ROUTE 132, Litchfield, CT

Built 1988 Load: 34.0 t ADT: 2,100

JONES HILL ROAD

Good

Over: EIGHT MILE RIVER

580 FT E OF SSR 434, Middlesex, CT

Built 2006 Load: 34.0 t ADT: 93

PLANK ROAD

Good

Over: MAD RIVER

100'W OF HARPERS FERRY RD, New Haven, CT

Built 2015 Load: 34.0 t ADT: 3,100

REEDS GAP ROAD

Good

Over: FARM RIVER

0.5 MI S OF ROUTE 17, New Haven, CT

Built 2010 Load: 34.0 t ADT: 300

MANSFIELD DRIVE

Good

Over: FARM RIVER

1/4 mi. east of Route 17, New Haven, CT

Built 2004 Load: 34.0 t ADT: 1,020

I-95 & PARKWAY N.

Good

Over: JORDAN BROOK

0.9 MI S OF ROUTE 85, New London, CT

Built 1964 Load: 34.0 t ADT: 58,100

SR 695

Good

Over: QUANDUCK BROOK

4.7 MILES EAST OF I-395, Windham, CT

Built 1958 Load: 34.0 t ADT: 4,800

TECHNOLOGY PARK DR

Good

Over: QUINEBAUG RIVER

400 FT W KENNEDY DR, Windham, CT

Built 2015 Load: 34.0 t ADT: 106

SHARON STATION RD

Good

Over: WEBATUCK CREEK

.7 MI W. OF ROUTE 361, Litchfield, CT

Built 2000 Load: 34.2 t ADT: 713

GULF STREET

Good

Over: GULF POND

0.8 MI S OF ROUTE 162, New Haven, CT

Built 2006 Load: 34.2 t ADT: 5,182

Showing 3,351-3,400 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.