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 10

Good

Over: HOP BROOK

0.1 MI SOUTH OF ROUTE 167, Hartford, CT

Built 1957 Load: 55.4 t ADT: 11,100

INTERSTATE-95

Good

Over: WOODMONT ROAD NO. 1

3.7 MI S OF ROUTE 162, New Haven, CT

Built 2003 Load: 55.4 t ADT: 92,200

ROUTE 139

Good

Over: BRANFORD RIVER

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

Built 2017 Load: 55.4 t ADT: 8,500

PLEASANT STREET

Good

Over: YANTIC RIVER

70FT N OTROBANDO AVENUE, New London, CT

Built 1969 Load: 55.4 t ADT: 1,027

INTERSTATE-395

Good

Over: ABANDONED RAILROAD

.5 MI SOUTH JCT ROUTE 14, Windham, CT

Built 1958 Load: 55.4 t ADT: 27,800

ROCK AVENUE

Good

Over: FIVE MILE RIVER

1500 FT WEST OF ROUTE 12, Windham, CT

Built 1959 Load: 55.4 t ADT: 1,180

ROUTE 9 SOUTHBOUND

Good

Over: BARTHOLOMEW ROAD

0.6 MI S OF ROUTE 155, Middlesex, CT

Built 1959 Load: 55.7 t ADT: 22,900

INTERSTATE-95 SB

Good

Over: OIL MILL ROAD

0.7 MI EST OF US ROUTE 1, New London, CT

Built 1958 Load: 55.7 t ADT: 22,600

MACINTOSH ROAD

Good

Over: EIGHT MILE RIVER

500FT W OF ROUTE 156, New London, CT

Built 2023 Load: 55.7 t ADT: 178

ROUTE 14

Good

Over: MOOSUP RIVER

0.5 MI WEST OF ROUTE 12, Windham, CT

Built 1962 Load: 55.7 t ADT: 3,700

CHATFIELD HOLLOW R

Good

Over: CHATFIELD HOLLOW BROOK

0.3 MI N OF MAIN ENTRANCE, Middlesex, CT

Built 1934 Load: 55.9 t ADT: 359

MOREY ROAD

Good

Over: NATCHAUG RIVER

0.25 MI SOUTH OF RTE. 198, Windham, CT

Built 2000 Load: 55.9 t ADT: 265

ROUTE 123

Good

Over: NORWALK RIVER

0.2 MI N OF US ROUTE 7, Fairfield, CT

Built 1860 Load: 56.1 t ADT: 13,300

US ROUTE 7 SB

Good

Over: WOOSTER HEIGHTS ROAD

500 FT FROM DANBURY AP, Fairfield, CT

Built 2009 Load: 56.1 t ADT: 10,300

INTERSTATE-384 WB

Good

Over: PARK MAINTENANCE ROAD

.2 MI EAST OF ROUTE 83, Hartford, CT

Built 1969 Load: 56.1 t ADT: 19,900

ROUTE 9

Good

Over: GAME AREA ROAD

1.1 MI NO. OF RT 99, Middlesex, CT

Built 1968 Load: 56.1 t ADT: 61,300

I-91 TR 807,SR 702

Good

Over: POND HILL ROAD

I-91 TR 805, New Haven, CT

Built 1965 Load: 56.1 t ADT: 8,300

MILL ROAD

Good

Over: FARM RIVER

0.8 MI W OF ROUTE 22, New Haven, CT

Built 1998 Load: 56.1 t ADT: 2,800

BLACKBERRY STREET

Good

Over: BLACKBERRY RIVER

NEAR INT. OF US 44, Litchfield, CT

Built 1937 Load: 56.2 t ADT: 498

BOWMAN DRIVE

Good

Over: BEACON HILL BROOK

500' SO OF ROUTE 63 JCT, New Haven, CT

Built 1982 Load: 56.2 t ADT: 660

MAIN STREET

Good

Over: FRENCH RIVER

100 FT WEST OF ROUTE 12, Windham, CT

Built 1989 Load: 56.2 t ADT: 528

INTERSTATE-91 NB

Good

Over: POOL ROAD

0.4 MI N OF US ROUTE 5, New Haven, CT

Built 1965 Load: 56.4 t ADT: 78,500

SHELDON ROAD

Good

Over: DOANVILLE POND

0.5 MI SOUTH OF ROUTE 138, New London, CT

Built 2020 Load: 56.4 t ADT: 551

EAGLE ROAD

Good

Over: HOUSATONIC RR

0.1 MI N OF I-84, Fairfield, CT

Built 2009 Load: 56.5 t ADT: 12,260

US ROUTE 5

Good

Over: MEETING HOUSE BROOK

0.2 MI N OF ROUTE 15, New Haven, CT

Built 1989 Load: 56.5 t ADT: 26,400

ROUTE 74

Good

Over: GRAPEVINE BROOK

0.3 MILE WEST OF I-84, Tolland, CT

Built 2011 Load: 56.7 t ADT: 1,700

PHOENIX STREET

Good

Over: TANKERHOOSEN RIVER

100 FT. S CAMPBELL AVE., Tolland, CT

Built 2012 Load: 56.7 t ADT: 2,800

ROUTE 94

Good

Over: ROARING BROOK

0.9 MILE EAST OF ROUTE 83, Hartford, CT

Built 1938 Load: 56.9 t ADT: 5,900

ROUTE 171

Good

Over: LITTLE RIVER

0.3 MI W OF THOMPSON TL, Windham, CT

Built 1951 Load: 56.9 t ADT: 7,700

SR 529

Good

Over: DRAINAGE

100' EAST OF SOUTH STREET, Hartford, CT

Built 1959 Load: 57.0 t ADT: 15,900

MUNRO STREET

Good

Over: MAD RIVER

AT THE JUNCTION OF RTE 44, Litchfield, CT

Built 1956 Load: 57.0 t ADT: 821

COUNTY ROAD

Good

Over: HAMMONASSET RIVER

1.3 MI. EAST OF ROUTE 79, New Haven, CT

Built 2022 Load: 57.0 t ADT: 163

US ROUTE 44

Good

Over: WAPPOQUIA BROOK

0.14 MILE NORTH OF SR 644, Windham, CT

Built 2016 Load: 57.0 t ADT: 4,300

BIRCH ROAD

Good

Over: AMTRAK RAILROAD

0.4 MI N OF PINE ORCHARD, New Haven, CT

Built 1988 Load: 57.3 t ADT: 1,189

MILITARY HIGHWAY

Good

Over: LONG COVE

0.7 MILE W OF ROUTE 12, New London, CT

Built 1999 Load: 57.3 t ADT: 1,300

Williamson Road

Good

Over: Crystal Lake Brook

1000 ft West of Route 30, Tolland, CT

Built 2021 Load: 57.3 t ADT: 43

RIVER ROAD

Good

Over: FIVE MILE RIVER

350'OF JCT PINEVILLE ROAD, Windham, CT

Built 2012 Load: 57.3 t ADT: 700

ROUTE 63

Good

Over: NAUGATUCK RV, MNRR & ELM

0.1 MI N OF RTE 8 EXIT 26, New Haven, CT

Built 2011 Load: 57.7 t ADT: 14,500

BEACH ROAD

Good

Over: BRIDE BROOK

MAIN ACCESS ROAD TO BEACH, New London, CT

Built 1987 Load: 57.8 t ADT: 3,323

INTERSTATE 84 EAST

Good

Over: CENTER STREET

.25 MI WEST OF ROCHAMBEAU, Fairfield, CT

Built 1978 Load: 58.0 t ADT: 36,950

ROUTE 82

Good

Over: HUNGERFORD BROOK

1.0 MI W OF ROUTE 148, Middlesex, CT

Built 2017 Load: 58.0 t ADT: 2,300

INTERSTATE 91 NB

Good

Over: CHAPEL STREET

0.1 M N OF I-95, New Haven, CT

Built 1965 Load: 58.0 t ADT: 72,800

INTERSTATE 91 SB

Good

Over: CHAPEL STREET

0.5 M N OF I-95, New Haven, CT

Built 1965 Load: 58.0 t ADT: 63,400

ROUTE 97

Good

Over: BEAVER BROOK

.1 MI SOUTH ROUTE 207, New London, CT

Built 1939 Load: 58.0 t ADT: 3,000

MEMORIAL BLVD.

Good

Over: PEQUABUCK RIVER

AT EAST END OF BOULEVARD, Hartford, CT

Built 1921 Load: 58.3 t ADT: 8,980

MEADOWBROOK DRIVE

Good

Over: TUCKER BROOK

300 ft East of Vernon St, Hartford, CT

Built 1994 Load: 58.3 t ADT: 2,121

MILTON ROAD #2

Good

Over: MARSHEPAUG RIVER

JCT. SHEAR-SHOP ROAD, Litchfield, CT

Built 2020 Load: 58.3 t ADT: 318

JOHNSONVILLE ROAD

Good

Over: MOODUS RIVER

0.4 MI NORTH OF ROUTE 149, Middlesex, CT

Built 2019 Load: 58.3 t ADT: 280

OLD NEWTOWN ROAD

Good

Over: STILL RIVER

0.2 MI W OF NEWTOWN RD, Fairfield, CT

Built 2000 Load: 58.4 t ADT: 7,580

INTERSTATE-95

Good

Over: PEMBROKE STREET

0.1 MI N OF ROUTE 127, Fairfield, CT

Built 1959 Load: 58.6 t ADT: 117,900

Showing 3,851-3,900 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.