State profile · Below median Poor share

Connecticut bridge safety

According to the Federal Highway Administration's 2024 National Bridge Inventory, condition ratings, load ratings, and Poor-condition shares for every public highway bridge in Connecticut.

4,365
Public bridges
27.8%
Good condition
4.7%
Poor condition

Connecticut holds 4,365 public highway bridges (#38 of 52 by inventory) with a 4.72% Poor share (#36 of 52 by Poor share).

That is 4.7% of the state's inventory, against an average of 7.5% across the 54 states and territories with Poor-rated bridges on file, which places it 17 of 54 ordered from the lowest Poor share upward. A bridge is rated Poor when its weakest applicable component scores 4 or below on the inspecting agency's 0-9 scale, so the category is a maintenance and funding signal rather than a closure order or a live crossing-safety verdict.

Inventory: FHWA NBI 2024 · last ETL August 2026

Total Bridges

4,365

Public highway bridges in Connecticut

Good Condition

27.8%

1,213 bridges rated 7-9

-22.2pp vs 50% benchmark

Poor Condition

4.7%

206 bridges whose lowest applicable component is rated 0-4

-2.8pp vs national avg 7.5%

Connecticut vs national bridge condition

Connecticut - Good condition share 27.8%
National avg

Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).

Connecticut - Poor-condition share 15.7%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.5%.

Connecticut in the national condition pattern

Each point is a state or territory in the FHWA NBI; the highlighted point is this profile.

Inventory size and Poor-condition share are different measures: Connecticut has 4,365 bridges and a 4.7% Poor-condition share in the 2024 NBI, rank #17 of 54 jurisdictions ordered from the lowest share upward. The dashed comparisons mark the national average state rate and the midpoint of the plotted inventory range; neither is a live safety or closure threshold. Scatter plot of 54 data points. 0%10%20%30%40% 0k20k40k60k Public bridges in inventory (thousands) Poor-condition share (%) CT, Public bridges in inventory (thousands): 4.4k · Poor-condition share (%): 4.72%AL, Public bridges in inventory (thousands): 16.2k · Poor-condition share (%): 3.35%AK, Public bridges in inventory (thousands): 1.7k · Poor-condition share (%): 7.89%AZ, Public bridges in inventory (thousands): 8.6k · Poor-condition share (%): 1.15%AR, Public bridges in inventory (thousands): 13k · Poor-condition share (%): 5.43%CA, Public bridges in inventory (thousands): 25.8k · Poor-condition share (%): 5.91%CO, Public bridges in inventory (thousands): 9k · Poor-condition share (%): 4.82%DE, Public bridges in inventory (thousands): 0.9k · Poor-condition share (%): 1.26%DC, Public bridges in inventory (thousands): 0.3k · Poor-condition share (%): 1.95%FL, Public bridges in inventory (thousands): 13k · Poor-condition share (%): 2.79%GA, Public bridges in inventory (thousands): 15.1k · Poor-condition share (%): 1.59%GU, Public bridges in inventory (thousands): 0k · Poor-condition share (%): 12.77%HI, Public bridges in inventory (thousands): 1.2k · Poor-condition share (%): 6.53%ID, Public bridges in inventory (thousands): 4.6k · Poor-condition share (%): 4.9%IL, Public bridges in inventory (thousands): 26.9k · Poor-condition share (%): 9.35%IN, Public bridges in inventory (thousands): 19.5k · Poor-condition share (%): 5.22%IA, Public bridges in inventory (thousands): 23.7k · Poor-condition share (%): 19.16%KS, Public bridges in inventory (thousands): 24.9k · Poor-condition share (%): 5.26%KY, Public bridges in inventory (thousands): 14.5k · Poor-condition share (%): 7.37%LA, Public bridges in inventory (thousands): 12.7k · Poor-condition share (%): 11.48%ME, Public bridges in inventory (thousands): 2.5k · Poor-condition share (%): 15.41%MD, Public bridges in inventory (thousands): 5.5k · Poor-condition share (%): 4.56%MA, Public bridges in inventory (thousands): 5.3k · Poor-condition share (%): 8.88%MI, Public bridges in inventory (thousands): 11.4k · Poor-condition share (%): 11.27%MN, Public bridges in inventory (thousands): 13.5k · Poor-condition share (%): 4.44%MS, Public bridges in inventory (thousands): 16.7k · Poor-condition share (%): 6.03%MO, Public bridges in inventory (thousands): 24.6k · Poor-condition share (%): 8.95%MT, Public bridges in inventory (thousands): 5.2k · Poor-condition share (%): 6.81%NE, Public bridges in inventory (thousands): 15.4k · Poor-condition share (%): 7.9%NV, Public bridges in inventory (thousands): 2.1k · Poor-condition share (%): 1.14%NH, Public bridges in inventory (thousands): 2.5k · Poor-condition share (%): 7.51%NJ, Public bridges in inventory (thousands): 6.8k · Poor-condition share (%): 6.01%NM, Public bridges in inventory (thousands): 4k · Poor-condition share (%): 4.51%NY, Public bridges in inventory (thousands): 17.6k · Poor-condition share (%): 9.43%NC, Public bridges in inventory (thousands): 19.2k · Poor-condition share (%): 6.76%ND, Public bridges in inventory (thousands): 4.3k · Poor-condition share (%): 10.98%OH, Public bridges in inventory (thousands): 26.7k · Poor-condition share (%): 4.74%OK, Public bridges in inventory (thousands): 22.9k · Poor-condition share (%): 7.7%OR, Public bridges in inventory (thousands): 8.3k · Poor-condition share (%): 4.61%PA, Public bridges in inventory (thousands): 23.3k · Poor-condition share (%): 12.58%PR, Public bridges in inventory (thousands): 2.4k · Poor-condition share (%): 13.92%RI, Public bridges in inventory (thousands): 0.8k · Poor-condition share (%): 15.2%SC, Public bridges in inventory (thousands): 9.5k · Poor-condition share (%): 6.17%SD, Public bridges in inventory (thousands): 5.9k · Poor-condition share (%): 16.36%TN, Public bridges in inventory (thousands): 20.4k · Poor-condition share (%): 4.41%TX, Public bridges in inventory (thousands): 56.7k · Poor-condition share (%): 1.23%UT, Public bridges in inventory (thousands): 3.1k · Poor-condition share (%): 2.91%VT, Public bridges in inventory (thousands): 2.9k · Poor-condition share (%): 2.9%VI, Public bridges in inventory (thousands): 0k · Poor-condition share (%): 29.17%VA, Public bridges in inventory (thousands): 14.1k · Poor-condition share (%): 3.39%WA, Public bridges in inventory (thousands): 8.5k · Poor-condition share (%): 5.45%WV, Public bridges in inventory (thousands): 7.3k · Poor-condition share (%): 18.64%WI, Public bridges in inventory (thousands): 14.4k · Poor-condition share (%): 6.52%WY, Public bridges in inventory (thousands): 3.1k · Poor-condition share (%): 6.51%
Inventory size and Poor-condition share are different measures: Connecticut has 4,365 bridges and a 4.7% Poor-condition share in the 2024 NBI, rank #17 of 54 jurisdictions ordered from the lowest share upward. The dashed comparisons mark the national average state rate and the midpoint of the plotted inventory range; neither is a live safety or closure threshold.

Connecticut vs all states by public bridge inventory

Where this state's FHWA NBI public-highway bridge count sits among every state and territory on PlainBridges

4,365 38th of 54 higher than 16 of 54 states

States and territories, banded by public bridge inventory size

Each bar is a band; taller bars hold more states. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source FHWA National Bridge Inventory · 2024

Read the rank neighborhood for Connecticut

The highlighted point is Connecticut: 4,365 bridges and 4.72% in Poor condition, rank #17 of 54 jurisdictions ordered from the lowest share upward. The five jurisdictions immediately above and below Connecticut on that same Poor-share ordering:

  • Maryland: 5,484 bridges · 4.56% Poor
  • Oregon: 8,305 bridges · 4.61% Poor
  • Connecticut: 4,365 bridges · 4.72% Poor
  • Ohio: 26,729 bridges · 4.74% Poor
  • Colorado: 8,965 bridges · 4.82% Poor

The full national sortable table lives on the rankings page.

Material families in Connecticut

Exclusive FHWA material families across all 4,365 bridges in this state; continuous variants fold into the parent family. Orthogonal to the Poor-share scatter above.

Who maintains Connecticut’s inventory

State agency holds 65.3% of the 4,365 public highway bridges filed under Connecticut in the 2024 NBI, the agency-of-record split for this state, not a condition verdict.

When Connecticut’s bridges were built

Pre-1950 construction accounts for 18.9% of the 4,365 bridges with a recorded original year in Connecticut. Era bands are orthogonal to the Poor-share ranking above.

Condition Distribution

Connecticut27.8%67.5%GoodFairPoor
Bridge inventory deck-condition mix - Connecticut (FHWA NBI)

Counties (0)

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.

MD

Maryland

4.56% top marginal rate
Structure
Progressive
Burden @ $100K
$5,484

OR

Oregon

4.61% top marginal rate
Structure
Progressive
Burden @ $100K
$8,305
Selected

CT

Connecticut

4.72% top marginal rate
Structure
Progressive
Burden @ $100K
$4,365

OH

Ohio

4.74% top marginal rate
Structure
Progressive
Burden @ $100K
$26,729

CO

Colorado

4.82% top marginal rate
Structure
Progressive
Burden @ $100K
$8,965

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.

FALLS ROAD

Poor

Over: NONNEWAUG BROOK

300 E OF NONNEWAUG RD, CT

Built 1956 Load: 0.0 t ADT: 95

SHERMAN STREET

Poor

Over: YANTIC RIVER

1 MILE WEST ROUTE 2, CT

Built 1920 Load: 3.9 t

ROUTE 191

Poor

Over: SCANTIC RIVER

1.9 MI SOUTH OF RTE. 140, CT

Built 1925 Load: 5.8 t ADT: 1,500

RIVER BANK ROAD

Poor

Over: EAST BRANCH MIANUS RIVER

0.8 MI N OF ROUTE 15, CT

Built 1957 Load: 8.1 t ADT: 1,500

TRACY ROAD #1

Poor

Over: KITT BROOK

0.5 MI SOUTH OF ROUTE 14, CT

Built 1928 Load: 8.7 t ADT: 176

ROUTE 136

Poor

Over: SAUGATUCK RIVER

BETWEEN I-95 EXIT 17 & 18, CT

Built 1870 Load: 10.0 t ADT: 14,500

All Bridges in Connecticut

INTERSTATE-84 EB

Fair

Over: TROUT BK & TROUT BK DR

1 MILE EAST OF EXIT 41, CT

Built 1965 Load: 34.7 t ADT: 54,900

INTERSTATE-95 NB

Fair

Over: ROUTE 49

I-95 EXIT NO. 92, CT

Built 1964 Load: 34.7 t ADT: 13,600

INTERSTATE 91

Fair

Over: N FRONT ST & QUINN RIVER

2.3 MI N OF I-95, CT

Built 1964 Load: 34.7 t ADT: 137,300

INTERSTATE-91 SB

Fair

Over: SR 715 (MONTOWESE AVE)

I-91 SB OVER SR 715, CT

Built 1965 Load: 34.7 t ADT: 54,700

SHUTTLE MEADOW RD

Fair

Over: INTERSTATE-84

I-84 BETWEEN EXITS 32-33, CT

Built 1965 Load: 34.7 t ADT: 3,072

ROUTE 126

Fair

Over: FLAT BROOK

03 MI N OF RTE 63 JCT, CT

Built 1965 Load: 34.7 t ADT: 1,500

ROUTE 2 WESTBOUND

Fair

Over: ROUTE 85

0.7 MI E OF ROUTE 16, CT

Built 1966 Load: 34.7 t ADT: 10,100

ROUTE 80

Fair

Over: DEEP RIVER

0.1 MI W OF ROUTE 9, CT

Built 1967 Load: 34.7 t ADT: 6,100

ROUTE 9 TR 806

Fair

Over: WOODRUFF ROAD

RTE 9 NB EXIT 31 TO 84 EB, CT

Built 1966 Load: 34.7 t ADT: 18,600

ROUTE 9 NORTHBOUND

Fair

Over: SOUTH STREET

0.2 MI NORTH OF BERLIN TL, CT

Built 1968 Load: 34.7 t ADT: 37,700

INTERSTATE 684 NB

Fair

Over: TAMARACK SWAMP

0.5 MI NORTH OF N.Y. S.L., CT

Built 1968 Load: 34.7 t ADT: 35,050

INTERSTATE-95 NB

Fair

Over: WILLIAMS ST (SR 635)

0.1 MI W OF THAMES RIVER, CT

Built 1975 Load: 34.7 t ADT: 35,100

HELLSTROM ROAD

Fair

Over: FARM RIVER

300 E OF RT 100, CT

Built 1980 Load: 34.7 t ADT: 1,004

POVERTY ROAD

Fair

Over: POMPERAUG RIVER

0.6 MI WEST INT S.MAIN ST, CT

Built 1967 Load: 34.7 t ADT: 4,462

BELLEVIEW AVENUE

Fair

Over: GULF STREAM

200 SOUTH OF US RTE 202, CT

Built 1910 Load: 34.7 t ADT: 510

ROUTE 73

Fair

Over: STEELE BROOK

INT. MAIN & RIVERSIDE STS, CT

Built 1994 Load: 34.7 t ADT: 14,100

BATSON DRIVE

Fair

Over: INTERSTATE-291

0.4 MI E OF S. WINDSOR TL, CT

Built 1994 Load: 34.7 t ADT: 276

INTERSTATE-95-NB

Fair

Over: GROTON RESERVOIR

1.4 MI N OF ROUTE 12, CT

Built 1964 Load: 34.9 t ADT: 59,800

VILLAGE HILL ROAD

Fair

Over: TEN MILE RIVER

100 FT NORTH OF COOK HILL, CT

Built 1870 Load: 34.9 t ADT: 501

LOCKWOOD LANE

Fair

Over: INTERSTATE 95

1 MI W OF STMFRD GRWCH TL, CT

Built 1958 Load: 35.0 t ADT: 4,620

INTERSTATE-95

Fair

Over: POND MEADOW ROAD

1.7 MI N OF US ROUTE 145, CT

Built 1957 Load: 35.0 t ADT: 50,800

US ROUTE 7

Fair

Over: COOPER POND BROOK

100 FT S OF ROUTE 102, CT

Built 1961 Load: 35.0 t ADT: 18,800

INTERSTATE-84 WB

Fair

Over: ROUTE 10

INTERSTATE-84 EXIT NO. 32, CT

Built 1963 Load: 35.0 t ADT: 45,500

ROUTE 15

Fair

Over: SILVERMINE RIVER

0.5 MI S OF U.S. ROUTE 7, CT

Built 1958 Load: 35.0 t ADT: 108,000

I-84 TR 825

Fair

Over: US RT 44EB & COLUMBUS BD

I-84 EB EXIT NO. 51, CT

Built 1961 Load: 35.0 t ADT: 9,800

SR 597 NORTHBOUND

Fair

Over: QUINNIPIAC RIVER

RAMP ROUTE 10 TO I-84 EB, CT

Built 1963 Load: 35.0 t ADT: 4,300

ROUTE 2 EASTBOUND

Fair

Over: ROUTE 94

ROUTE 94, CT

Built 1964 Load: 35.0 t ADT: 21,250

ROUTE 72

Fair

Over: BROOK

0.2 MILE WEST OF ROUTE 69, CT

Built 1954 Load: 35.0 t ADT: 9,400

ROUTE 8 NORTHBOUND

Fair

Over: FREIGHT STREET

0.2 MILE NORTH OF I-84 WB, CT

Built 1966 Load: 35.0 t ADT: 12,550

ROUTE 31

Fair

Over: HOCKANUM RIVER

50 SOUTH OF ROUTE 74, CT

Built 1995 Load: 35.0 t ADT: 4,600

CHRISTIAN HILL RD

Fair

Over: ROUTE 9

2.0 MI N OF ROUTE 81, CT

Built 1965 Load: 35.0 t ADT: 681

I-84 TR 824

Fair

Over: CAPITOL AVENUE & AMTRAK

.10 M SO OF JCT US6&US202, CT

Built 1969 Load: 35.0 t ADT: 4,100

ROUTE 3

Fair

Over: ROUTE 9

2.44 MI SOUTH OF OP I-91, CT

Built 1967 Load: 35.0 t ADT: 9,200

ROUTE 40 NB

Fair

Over: ROUTE 15 (WILBUR CROSS)

1.8 MI NORTH OF I-91, CT

Built 1976 Load: 35.0 t ADT: 11,000

CAMP AVENUE

Fair

Over: SPRINGDALE BROOK

WEST OF HIGHVIEW AVENUE, CT

Built 1957 Load: 35.0 t ADT: 9,230

ROUTE 72 TR 801

Fair

Over: ROUTES 174 & 9 SB

RT 174 9 SB, CT

Built 1978 Load: 35.0 t ADT: 8,700

FOUR BRIDGES ROAD

Fair

Over: SCANTIC RIVER

0.6 MILE WEST OF ROUTE 83, CT

Built 1956 Load: 35.0 t ADT: 1,300

ROUTE 2 WESTBOUND

Fair

Over: EAST RIVER DRIVE

.3 MILE WEST OF MAIN ST, CT

Built 1992 Load: 35.0 t ADT: 34,650

US ROUTE 44

Fair

Over: FENTON RIVER

.4 MI WEST WILLINGTON TL, CT

Built 1929 Load: 35.2 t ADT: 3,700

ROUTE 165

Fair

Over: GLASGO POND

0.6 MI EAST OF ROUTE 201, CT

Built 1934 Load: 35.2 t ADT: 2,500

SR 500 TR 803

Fair

Over: I-84 SR 500 TR 801 & 8

0.2 MILE S OF GOVERNOR ST, CT

Built 1964 Load: 35.2 t ADT: 1,600

INTERSTATE-95

Fair

Over: WEST BRANCH WEST RIVER

0.2 MI S OF ROUTE 77, CT

Built 1958 Load: 35.3 t ADT: 59,300

NOD ROAD

Fair

Over: INTERSTATE-95

1.0 MI S OF ROUTE 81, CT

Built 1957 Load: 35.3 t ADT: 2,500

ROUTE 2

Fair

Over: YANTIC RIVER

.8 MI E OF INTERSTATE 395, CT

Built 1959 Load: 35.3 t ADT: 19,000

ROUTE 71

Fair

Over: SR 571

.5MI SO OF NEW BRITAIN TL, CT

Built 1962 Load: 35.3 t ADT: 9,400

ROUTE 2 EASTBOUND

Fair

Over: WEST ROAD

2 MILES WEST OF ROUTE 66, CT

Built 1964 Load: 35.3 t ADT: 20,400

I-84 TR 823

Fair

Over: I84 503 RR CAP AV FOREST

RAMP I-84EB TO SISSON AVE, CT

Built 1969 Load: 35.3 t ADT: 4,500

WHITE STREET

Fair

Over: HOUSATONIC RR

AT JCT FEDERAL ROAD, CT

Built 1915 Load: 35.3 t ADT: 22,068

SR 722

Fair

Over: RTE 8 & RAMPS 006 & 007

EXIT 5 OFF RT 8, CT

Built 1972 Load: 35.3 t ADT: 29,700

ROUTE 3

Fair

Over: ROUTE 2 & RAMP 080 EB

0.24 MI N OF MAIN ST OP, CT

Built 1987 Load: 35.3 t ADT: 26,800

Showing 1,151-1,200 of 4,365 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.

What to do with this

Use Connecticut's inventory picture to drill to a county or a specific span.

  • Browse counties in Connecticut and open the highest-Poor shares first. County list
  • See where this state sits among peers on Poor-condition share. State rankings
  • Compare this state with another jurisdiction on the same measures. State compare

NBI condition ratings are inventory snapshots, not live crossing-safety verdicts.

Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Connecticut Good/Fair/Poor shares and county rollups on this page are computed from the same NBI extract as the national boards; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.