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

CROSBY ST CONNECTO

Good

Over: STILL RIVER

350' EAST OF ROUTE 53, Fairfield, CT

Built 1963 Load: 49.2 t ADT: 3,195

SO MAIN STREET #1

Good

Over: FAWN BROOK

.75 MI. S OF RT 2WB EX15, Hartford, CT

Built 2020 Load: 49.2 t ADT: 600

PLEASANT VALLEY RD

Good

Over: MENUNKETESUCK RIVER

0.5 MI W. OF ROUTE 145, Middlesex, CT

Built 2022 Load: 49.2 t ADT: 938

US ROUTE 1

Good

Over: NIANTIC RIVER

0.5 MI N OF I-95, New London, CT

Built 2017 Load: 49.2 t ADT: 10,600

ROUTE 49

Good

Over: PENDLETON HILL BROOK

50 FT S OF ROUTE 216, New London, CT

Built 2019 Load: 49.2 t ADT: 1,600

ROUTE 14A

Good

Over: CEDAR SWAMP BROOK

1.4 M EAST OF ROUTE 49 EB, Windham, CT

Built 2019 Load: 49.2 t ADT: 2,200

WALKER BROOK RD#3

Good

Over: WALKER BROOK

0.8 MI SOUTH OF ROUTE 109, Litchfield, CT

Built 2001 Load: 49.4 t ADT: 184

DUCK FARM ROAD

Good

Over: MILL RIVER

0.1 MI NO OF HUNTER ROAD, Fairfield, CT

Built 2023 Load: 49.6 t ADT: 2,270

US ROUTE 7 SB

Good

Over: PARK AVENUE

DUE EAST OF DANBURY MALL, Fairfield, CT

Built 1987 Load: 49.6 t ADT: 24,100

INTERSTATE-95

Good

Over: GRANITE ROAD

2.6 MI S OF ROUTE 77, New Haven, CT

Built 1958 Load: 49.6 t ADT: 59,500

SPRING ROAD

Good

Over: MUDDY RIVER

0.8 MI N OF ROUTE 17, New Haven, CT

Built 1954 Load: 49.6 t ADT: 4,300

I-95 SB - ON RAMP

Good

Over: FULTON TERRACE

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

Built 2006 Load: 49.6 t ADT: 11,900

ROUTE 82

Good

Over: EAST BR EIGHT MILE RIVER

0.8 MI W OF ROUTE 11, New London, CT

Built 2021 Load: 49.6 t ADT: 3,300

ROUTE 163

Good

Over: OAKDALE BROOK

3.3 MI N OF I-395, New London, CT

Built 2014 Load: 49.6 t ADT: 1,700

ROUTE 302

Good

Over: BROOK

0.8 MILE EAST OF ROUTE 53, Fairfield, CT

Built 1995 Load: 49.9 t ADT: 10,200

291 RMP & DEERF RD

Good

Over: DECKER'S BROOK

0.1 MILE EAST OF RTE. 159, Hartford, CT

Built 1993 Load: 49.9 t ADT: 10,000

ROUTE 272

Good

Over: HALL MEADOW BROOK

2.1 MI NORTH OF GOSHEN TL, Litchfield, CT

Built 2010 Load: 49.9 t ADT: 1,000

US ROUTE 7

Good

Over: MORRISEY BROOK

.79 MI S OF RT 55 JCT, Litchfield, CT

Built 1989 Load: 49.9 t ADT: 6,600

Mud Pond Road

Good

Over: Bull Mountain Brook

300-ft N of Long Mtn Rd, Litchfield, CT

Built 2022 Load: 49.9 t ADT: 20

INTERSTATE-95

Good

Over: FORD STREET

1.3 MI S OF ROUTE 121, New Haven, CT

Built 1957 Load: 49.9 t ADT: 103,600

EAST FLAT HILL RD

Good

Over: TRANSYLVANIA BROOK

.5 MI WEST OF ROUTE 172, New Haven, CT

Built 2019 Load: 49.9 t ADT: 630

I-84 WB EXIT 24 ON

Good

Over: MAD RIVER

AT HARPERS FERRY RD INTER, New Haven, CT

Built 2018 Load: 49.9 t ADT: 4,000

WOODMONT ROAD

Good

Over: METRO NORTH RAILROAD

0.5 MI S OF I-95, New Haven, CT

Built 1987 Load: 50.0 t ADT: 16,400

US ROUTE 202

Good

Over: STILL RIVER

RT 7 NORTH FED. ROAD EXIT, Fairfield, CT

Built 1976 Load: 50.2 t ADT: 31,100

OLD MILL ROAD

Good

Over: EAST ASPETUCK RIVER

0.25 M EAST OF ROUTE 202, Litchfield, CT

Built 2001 Load: 50.2 t ADT: 62

PINEWOODS ROAD

Good

Over: STILL RIVER

900 FEET WEST OF ROUTE 8, Litchfield, CT

Built 2010 Load: 50.2 t ADT: 3,737

LITTLE CITY ROAD

Good

Over: PONSET BROOK

825 FT W OF ROUTE 81, Middlesex, CT

Built 1961 Load: 50.2 t ADT: 1,500

INTERSTATE-84 EB

Good

Over: PIERPONT ROAD

.8 MI WEST OF CHESHIRE TL, New Haven, CT

Built 2006 Load: 50.2 t ADT: 50,850

I-95 NB & RAMP 346

Good

Over: FULTON TERRACE

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

Built 2006 Load: 50.2 t ADT: 54,500

VALLEY ROAD

Good

Over: BRANFORD RIVER

1/4 mi east of Route 139, New Haven, CT

Built 2004 Load: 50.2 t ADT: 1,525

US ROUTE 6 RMP 003

Good

Over: SNAKE MEADOW BROOK

1.75 Mi West of I-395, Windham, CT

Built 1959 Load: 50.2 t ADT: 750

ROUTE 89

Good

Over: MOUNT HOPE RIVER

1.2 MILES NORTH OF RTE 44, Windham, CT

Built 2010 Load: 50.2 t ADT: 2,100

BLUE SWAMP ROAD

Good

Over: W BRANCH SHEPAUG RIVER

1 MILE EAST OF WARREN TL, Litchfield, CT

Built 2014 Load: 50.5 t ADT: 186

HAZEL PLAIN ROAD

Good

Over: SPRAIN BROOK

300 FEET WEST OF ROUTE 47, Litchfield, CT

Built 2019 Load: 50.5 t ADT: 468

I-84 EB EXIT 25 OF

Good

Over: MAD RIVER

1600'+/- EAST OF ROUTE 69, New Haven, CT

Built 2018 Load: 50.5 t ADT: 5,500

PERRY MERRILL DRIV

Good

Over: STREAM

0.25 mi. west of Tyrol La, New Haven, CT

Built 2010 Load: 50.5 t ADT: 505

RIVER ROAD

Good

Over: FARM RIVER

0.2 MI S OF ROUTE 80, New Haven, CT

Built 2002 Load: 50.8 t ADT: 1,076

BRISTOL TOWN ROAD

Good

Over: EIGHT MILE BROOK

300' EAST FROM ROUTE 188, New Haven, CT

Built 1950 Load: 50.8 t ADT: 270

ROUTE 120

Good

Over: MISERY BROOK

1.5 MI N OF ROUTE 322, Hartford, CT

Built 1963 Load: 50.9 t ADT: 7,200

MAIN STREET

Good

Over: PODUNK RIVER

0.5 MILES SOUTH OF I-291, Hartford, CT

Built 2022 Load: 50.9 t ADT: 1,602

BRADLEY AVENUE

Good

Over: HARBOR BROOK

200 FT N OF COE AVENUE, New Haven, CT

Built 2006 Load: 50.9 t ADT: 7,100

ROUTE 49

Good

Over: WYASSUP BROOK

1.5 MI N OF ROUTE 184, New London, CT

Built 2021 Load: 50.9 t ADT: 1,600

INTERSTATE-395 NB

Good

Over: TRACY ROAD

5.8 MI NORTH OF US RTE 6, Windham, CT

Built 2017 Load: 50.9 t ADT: 14,200

ROUTE 12

Good

Over: FIVE MILE RIVER

AT JCT WITH US ROUTE 6, Windham, CT

Built 1993 Load: 50.9 t ADT: 7,600

MUNYAN ROAD

Good

Over: FIVE MILE RIVER

3000FT FR JCT ROUTE 44, Windham, CT

Built 2000 Load: 51.0 t ADT: 646

WHIPPOORWILL LA #1

Good

Over: PUMPKIN GROUND BROOK

0.5 M N OF RT 110 & 113, Fairfield, CT

Built 2014 Load: 51.2 t ADT: 905

FOXTOWN ROAD

Good

Over: EIGHT MILE RIVER

200 FT E. OF SSR 434, Middlesex, CT

Built 2019 Load: 51.2 t ADT: 362

I-95 SB & RAMP 347

Good

Over: FULTON TERRACE

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

Built 2006 Load: 51.2 t ADT: 44,700

WESTMERE AVENUE

Good

Over: FARM CREEK

SOUTH OF BLUFF AVE, Fairfield, CT

Built 1939 Load: 51.5 t ADT: 2,420

CARTBRIDGE ROAD

Good

Over: SAUGATUCK RIVER

300' WEST LYONS PLAINS RD, Fairfield, CT

Built 2008 Load: 51.5 t ADT: 2,570

Showing 3,751-3,800 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.