State profile · Below median Poor share

Connecticut bridge safety

Condition ratings, load ratings, and Poor-condition data for every public highway bridge in Connecticut, based on the FHWA National Bridge Inventory.

4,277
Public bridges
24.0%
Good condition
4.0%
Poor condition

Data updated May 2026

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 whose lowest applicable component is rated 0-4

-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 - Poor-condition share 13.2%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.

Condition Distribution

Connecticut31.7%63.1%GoodFairPoor
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 by Poor-condition share (lower share = better)

States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below Connecticut on the same metric.

AL

Alabama

3.35% top marginal rate
Structure
Progressive
Burden @ $100K
$13,471

MN

Minnesota

3.63% top marginal rate
Structure
Progressive
Burden @ $100K
$11,969
Selected

CT

Connecticut

3.95% top marginal rate
Structure
Progressive
Burden @ $100K
$4,277

TN

Tennessee

3.97% top marginal rate
Structure
Progressive
Burden @ $100K
$20,426

MD

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 the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.

SHERMAN STREET

Poor

Over: YANTIC RIVER

1 MILE WEST ROUTE 2, New London, CT

Built 1920 Load: 3.9 t

RIVER BANK ROAD

Poor

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

YALE AVENUE

Unknown

Over: ROUTE 15

0.5 MI N OF ROUTE 68, New Haven, CT

Built 1947 ADT: 76,400

BALDWIN AVENUE

Unknown

Over: ROUTE 15

.3 MILES NORTH I-691, New Haven, CT

Built 1946 ADT: 24,600

CHURCH ST SOUTH #1

Unknown

Over: ROUTE 34

BTWN N & S FRONTAGE ROADS, New Haven, CT

Built 1960 ADT: 43,000

INTERSTATE-84 WB

Unknown

Over: ROUTE 70

2.4 MI W OF I-691, New Haven, CT

Built 1961 ADT: 13,700

INTERSTATE-84 EB

Unknown

Over: ROUTE 70

2.4 MI W OF I-691, New Haven, CT

Built 1961 ADT: 13,700

AMTRAK

Unknown

Over: ROUTE 71

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

Built 1841 ADT: 10,700

BRANFORD STEAM RR

Unknown

Over: ROUTE 80

0.1 MI W OF ROUTE 139, New Haven, CT

Built 2006 ADT: 19,100

ICHABOD ROAD

Unknown

Over: INTERSTATE 84

BTWN I-84 EXITS 13 & 14, New Haven, CT

Built 1963 ADT: 75,100

INTERSTATE 84 EB

Unknown

Over: ROUTE 172

AT EXIT 14, New Haven, CT

Built 1963 ADT: 8,200

INTERSTATE 84 WB

Unknown

Over: ROUTE 172

EXIT 14, New Haven, CT

Built 1963 ADT: 8,200

BULLET HILL ROAD

Unknown

Over: INTERSTATE 84 & RAMP 40

0.3 MI W OF US ROUTE 6, New Haven, CT

Built 1963 ADT: 66,400

INTERSTATE 84 EB

Unknown

Over: US RTE 6, RTE 67, STREAM

INTERSTATE-84 EXIT 15, New Haven, CT

Built 1963 ADT: 15,800

INTERSTATE 84 WB

Unknown

Over: US RTE 6, RTE 67, STREAM

I-84 WB EXIT NO. 15, New Haven, CT

Built 1963 ADT: 15,800

BUCKS HILL ROAD

Unknown

Over: INTERSTATE 84

.7 MI WEST OF ROUTE 188, New Haven, CT

Built 1964 ADT: 72,100

INTERSTATE 84 EB

Unknown

Over: ROUTE 188

EXIT 16 FROM I-84, New Haven, CT

Built 1964 ADT: 9,900

INTERSTATE 84 WB

Unknown

Over: ROUTE 188

EXIT 16 FROM I-84, New Haven, CT

Built 1964 ADT: 9,900

BENSON ROAD

Unknown

Over: INTERSTATE 84

0.8 MI EAST OF ROUTE 188, New Haven, CT

Built 1964 ADT: 71,100

CHRISTIAN ROAD

Unknown

Over: INTERSTATE 84

1.4 MI EAST OF EXIT 16, New Haven, CT

Built 1964 ADT: 73,700

SOUTH STREET

Unknown

Over: INTERSTATE 84

2.3 MI E SOUTHBURY TL, New Haven, CT

Built 1964 ADT: 71,100

INTERSTATE 84 EB

Unknown

Over: ROUTE 188

.7 MI WEST OF ROUTE 63, New Haven, CT

Built 1964 ADT: 4,000

INTERSTATE 84 WB

Unknown

Over: ROUTE 188

.7 MI W OF EXIT 17, New Haven, CT

Built 1964 ADT: 4,000

INTERSTATE 84 EB

Unknown

Over: ROUTE 63

.5 MI S OF JCT 63 & 64, New Haven, CT

Built 1964 ADT: 13,200

INTERSTATE 84 WB

Unknown

Over: ROUTE 63

1 MI S OF INT 63 & 64, New Haven, CT

Built 1964 ADT: 13,200

HARPERS FERRY ROAD

Unknown

Over: INTERSTATE-84

I-84 EXIT NO. 25, New Haven, CT

Built 2018 ADT: 86,700

AUSTIN ROAD

Unknown

Over: INTERSTATE 84

I-84 EB EXIT 25A, New Haven, CT

Built 1961 ADT: 84,100

MARION ROAD

Unknown

Over: INTERSTATE 84

1.8 MI E ROUTE 70, New Haven, CT

Built 1961 ADT: 106,300

AMTRAK RAILROAD

Unknown

Over: ROUTE 146

3.5 MILES S. GUILFORD TL, New Haven, CT

Built 1917 ADT: 1,400

AMTRAK RAILROAD

Unknown

Over: ROUTE 146

100' S OF SAM HILL ROAD, New Haven, CT

Built 1900 ADT: 3,200

WHEELERS FARMS RD.

Unknown

Over: SR 796

0.2 MI N OF I-95, New Haven, CT

Built 1941 ADT: 59,100

ROUTE 8 RAMP 079

Unknown

Over: SR 846 NORTHBOUND

RTE 8 SOUTHBOUND EXIT 34, New Haven, CT

Built 1965 ADT: 5,300

ROUTE 8

Unknown

Over: SR 846 NORTHBOUND

0.6 MILES NORTH OF I-84, New Haven, CT

Built 1965 ADT: 5,300

ROUTE 8 SOUTHBOUND

Unknown

Over: ROUTE 73 WESTBOUND

1.1MI NO OF INTERSTATE-84, New Haven, CT

Built 1965 ADT: 13,800

SR 845 (CHASE PARK

Unknown

Over: INTERSTATE 84 & RAMP 053

CHASE PRKWY AT I-84 EX 18, New Haven, CT

Built 1965 ADT: 79,200

ROUTE 15 NB

Unknown

Over: INTERSTATE-91 & RAMP 145

2.8 MILES NORTH OF RTE 5, New Haven, CT

Built 1964 ADT: 2,700

I-91 RAMP 145

Unknown

Over: ROUTE 15 SOUTHBOUND

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

Built 1964 ADT: 35,900

EAST MAIN STREET

Unknown

Over: I-91,ROUTE 15 & RAMP 147

ROUTE 15 & I91 MERGE, New Haven, CT

Built 1965 ADT: 93,100

I-91 TR 811

Unknown

Over: ROUTE 15 SOUTHBOUND

.12M S OF JCT I-91SB, New Haven, CT

Built 1964 ADT: 24,900

ROUTE 15 NB

Unknown

Over: INTERSTATE-91 & TR 3

ADJ TO EXIT#68 TO I691 WB, New Haven, CT

Built 1964 ADT: 47,800

INTERSTATE-691 EB

Unknown

Over: ROUTE 15

02 MI WEST EXIT ROUTE 15, New Haven, CT

Built 1965 ADT: 23,900

INTERSTATE-691 WB

Unknown

Over: ROUTE 15

2 MI WEST OF RTE 15 EXIT, New Haven, CT

Built 1965 ADT: 23,900

INTERSTATE-691 EB

Unknown

Over: INTERSTATE-91

03 WEST OF ACCESS I-91NB, New Haven, CT

Built 1965 ADT: 81,400

INTERSTATE-691 WB

Unknown

Over: INTERSTATE-91

500' EAST EXIT 10-691 WB., New Haven, CT

Built 1965 ADT: 81,400

INTERSTATE-691 EB

Unknown

Over: INTERSTATE-691 TR 802

ROUTE 691 OVER TR 802, New Haven, CT

Built 1965 ADT: 18,200

INTERSTATE 691 EB

Unknown

Over: I-91 TR 813

66 EASTBOUND OVER 91813, New Haven, CT

Built 1965 ADT: 5,000

I-91 TR 816

Unknown

Over: ROUTE 66 WB

.25 MILES EAST OF EXIT 10, New Haven, CT

Built 1965 ADT: 15,200

ROUTE 68

Unknown

Over: AMTRAK & US ROUTE 5

3 MILE WEST OF I-91 X-CRS, New Haven, CT

Built 1965 ADT: 22,800

PEDESTRIAN WALK

Unknown

Over: INTERSTATE 691

0.21 MILES EAST OF RT 322, New Haven, CT

Built 1971 ADT: 66,600

ROUTE 71

Unknown

Over: INTERSTATE-691

.5 MI WEST OF LEWIS AVE, New Haven, CT

Built 1971 ADT: 66,900

I-691 RAMP 009

Unknown

Over: I-691RMP 008,COLUMBIA ST

OVER ENT RAMP FROM LEWIS, New Haven, CT

Built 1971 ADT: 8,100

INTERSTATE-691 EB

Unknown

Over: US ROUTE 5

1.3 MI W OF I-91, New Haven, CT

Built 1971 ADT: 20,800

Showing 701-750 of 4,277 bridges

Related

All states → | National rankings → | Understanding conditions → | Retired SD term explained →
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges.

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). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.

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.

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.