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-691 WB

Fair

Over: ROUTE 15

2 MI WEST OF RTE 15 EXIT, CT

Built 1965 Load: 26.2 t ADT: 40,100

US ROUTE 6 EB

Fair

Over: NEW ENGLAND CENTRAL RR

1 MI EAST OF COVENTRY TL, CT

Built 1971 Load: 26.2 t ADT: 6,900

INTERSTATE-91 SB

Fair

Over: ROUTE 9 SB & I-91 TR 818

1.5 MI N ROUTE 372, CT

Built 1965 Load: 26.2 t ADT: 52,100

I-84 TR 813

Fair

Over: ROUTE 72 SOUTHBOUND

INTERSTATE-84 EB EXIT 33, CT

Built 1969 Load: 26.2 t ADT: 4,900

KENNEDY DRIVE

Fair

Over: I-395 & I-395 RAMP 061

INTERSTATE 395 AT EXIT 45, CT

Built 1967 Load: 26.2 t ADT: 8,400

SR721-NO MAIN ST

Fair

Over: ROUTE 8

.8M N OF RT 67 (EX 22 RT8, CT

Built 1981 Load: 26.2 t ADT: 1,800

NEW LONDON TPK

Fair

Over: ROARING BROOK

700Ft. N. of Jct Rte 83, CT

Built 1939 Load: 26.2 t ADT: 3,246

BALLOUVILLE ROAD

Fair

Over: CANAL

1 MI EAST OF ROUTE 12, CT

Built 1961 Load: 26.2 t ADT: 2,254

I-84 RAMP #253

Fair

Over: INTERSTATE-84

.63 MI E OF MANCHESTER TL, CT

Built 1982 Load: 26.2 t ADT: 13,203

NEWFIELD AVENUE

Fair

Over: SO. BRANCH OF PARK RIVER

700 FEET NORTH OF SR 529, CT

Built 1987 Load: 26.2 t ADT: 10,800

ROUTE 47

Fair

Over: SPRAIN BROOK

0.4 MILE SO OF ROXBURY TL, CT

Built 1989 Load: 26.2 t ADT: 1,800

INTERSTATE-91 NB

Fair

Over: CT SOUTHERN RR

0.5 MILE NORTH OF I-84, CT

Built 1990 Load: 26.2 t ADT: 76,000

INTERSTATE-291

Fair

Over: ROUTE 159 & DEERFIELD RD

0.25 MILE WEST OF I-91, CT

Built 1992 Load: 26.2 t ADT: 58,100

ROUTE 12

Fair

Over: PROV & WORC RAILROAD

1 MILE NORTH OF ROUTE 201, CT

Built 1930 Load: 26.3 t ADT: 4,800

BALDWIN AVENUE

Fair

Over: ROUTE 15

.3 MILES NORTH I-691, CT

Built 1946 Load: 26.3 t ADT: 3,600

EAST AVENUE

Fair

Over: INTERSTATE 95

INTERSTATE-95 EXIT NO. 16, CT

Built 1957 Load: 26.6 t ADT: 20,000

ROUTE 2 WESTBOUND

Fair

Over: ROUTE 149

ROUTE 2 EXIT NO 16, CT

Built 1959 Load: 26.6 t ADT: 17,100

ROUTE 4

Fair

Over: SO BRANCH BUNNELL BROOK

0.5 MILES WEST OF RTE. 69, CT

Built 1956 Load: 26.6 t ADT: 15,300

SR 530 -AIRPORT RD

Fair

Over: ROUTE 15

422 FT E OF I-91, CT

Built 1964 Load: 26.6 t ADT: 20,000

ROUTE 322

Fair

Over: QUINNIPIAC RIVER

SOUTHINGTON-CHESHIRE TL, CT

Built 1948 Load: 26.6 t ADT: 10,600

SR 800

Fair

Over: GULF STREAM

1.06 MI NO LITCHFIELD TL., CT

Built 1962 Load: 26.6 t ADT: 5,900

ROUTE 80

Fair

Over: WEST RIVER

265 FT W OF ROUTE 77, CT

Built 1934 Load: 26.6 t ADT: 7,100

INTERSTATE 84 WB

Fair

Over: PETER ROAD

.9 MI E OF ROUTE 172, CT

Built 1963 Load: 26.6 t ADT: 36,100

FIENEMANN ROAD

Fair

Over: INTERSTATE-84

ADJACENT TO I-84 EXIT 37, CT

Built 1967 Load: 26.6 t ADT: 12,400

ROUTE 9 NORTHBOUND

Fair

Over: RTE 9 RAMP 043 & SR 901

END RT 99 AT RT 9, CT

Built 1968 Load: 26.6 t ADT: 32,300

FAIR STREET

Fair

Over: METRO NORTH RAILROAD

275 FT E. OF STATE STREET, CT

Built 1998 Load: 26.6 t ADT: 2,200

STILLMAN AVENUE

Fair

Over: PAWCATUCK RIVER

0.5 MI E OF ROUTE 2, CT

Built 1953 Load: 26.6 t ADT: 5,452

FROST ROAD

Fair

Over: MAD RIVER

0.2 MILE EAST OF ROUTE 69, CT

Built 1965 Load: 26.6 t ADT: 11,000

CLARK HILL ROAD

Fair

Over: ROARING BROOK

1.7 MI E. OF ROUTE 82, CT

Built 1935 Load: 26.6 t ADT: 2,121

RESERVOIR HILL RD

Fair

Over: WHIGVILLE BROOK

JCT STONY HILL ROAD, CT

Built 2005 Load: 26.6 t ADT: 458

KENNEDY ROAD

Fair

Over: INTERSTATE-91

1.4 MILES N OF ROUTE 75, CT

Built 1992 Load: 26.6 t ADT: 10,718

COOK TOWN ROAD

Fair

Over: BROOK

0.7 MI E OF ROUTE 164, CT

Built 1988 Load: 26.8 t ADT: 120

RIVERSIDE AVENUE

Fair

Over: INTERSTATE-95

.7 MI EAST OF MIANUS RV, CT

Built 1958 Load: 26.9 t ADT: 9,500

ROUTE 15

Fair

Over: ROUTE 57

ROUTE 15 EXIT 42, CT

Built 1938 Load: 26.9 t ADT: 61,720

ROUTE 15

Fair

Over: HILLSIDE ROAD

1.9 MI EAST WESTPORT TL, CT

Built 1940 Load: 26.9 t ADT: 66,420

ROUTE 17

Fair

Over: NEW LONDON TURNPIKE

.47 S OF ROUTE 94 INTER., CT

Built 1952 Load: 26.9 t ADT: 14,300

ROUTE 20

Fair

Over: STILL RIVER

0.1 MILE EAST OF ROUTE 8, CT

Built 1935 Load: 26.9 t ADT: 2,300

ROUTE 20 EASTBOUND

Fair

Over: HAMILTON ROAD

1 MI EAST OF WL TOWN LINE, CT

Built 1961 Load: 26.9 t ADT: 20,650

ROUTE 67

Fair

Over: EIGHT MILE BROOK

OXFORD-SOUTHBURY T.L., CT

Built 1934 Load: 26.9 t ADT: 11,800

ROUTE 195

Fair

Over: WILLIMANTIC RIVER

.7 MI NORTH JCT ROUTE 32, CT

Built 1959 Load: 26.9 t ADT: 11,600

ROUTE 32 RAMP 002

Fair

Over: INTERSTATE 95 & SR 623

1.4 MILE N OF ROUTE 85, CT

Built 1973 Load: 26.9 t ADT: 6,400

SR 635

Fair

Over: RT 32+RAMP 3 I-95 TR 817

0.4 MI N OF I-95, CT

Built 1973 Load: 26.9 t ADT: 4,300

POMPERAUG ROAD

Fair

Over: POMPERAUG RIVER

OFF ROUTE 6 NEAR RTE 64, CT

Built 1956 Load: 26.9 t ADT: 212

BARBOURTOWN ROAD

Fair

Over: CHERRY BROOK

NEAR INT. WITH ROUTE 179, CT

Built 1986 Load: 26.9 t ADT: 1,640

INTERSTATE-95

Fair

Over: DELAVAN AVENUE

I-95 EXIT NO. 2, CT

Built 1958 Load: 27.2 t ADT: 96,600

FOUR MILE RIVER RD

Fair

Over: INTERSTATE-95

5.5 MI N OF ROUTE 9, CT

Built 1958 Load: 27.2 t ADT: 5,500

WALNUT STREET

Fair

Over: ROUTE 9

.28MI S OF JCT NB RTE 17, CT

Built 1958 Load: 27.2 t ADT: 2,509

ROUTE 12

Fair

Over: PACHAUG RIVER - P & W RR

0.9 MILE NORTH OF I-395, CT

Built 1930 Load: 27.2 t ADT: 8,200

ROUTE 15

Fair

Over: CUTSPRING ROAD

1.5 MI S OF ROUTE 110, CT

Built 1940 Load: 27.2 t ADT: 119,800

SOUTH STREET

Fair

Over: INTERSTATE 84

2.3 MI E SOUTHBURY TL, CT

Built 1964 Load: 27.2 t ADT: 1,700

Showing 251-300 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.