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

GREYSTONE ROAD #1

Fair

Over: GREYSTONE POND

0.5 MI EAST OF ROUTE 262, CT

Built 1964 Load: 51.9 t ADT: 1,581

INTERSTATE 395

Fair

Over: QUINEBAUG RV & P&W RR

0.2 MILE NORTH OF RTE 12, CT

Built 1958 Load: 52.0 t ADT: 39,300

INTERSTATE-95

Fair

Over: ROUND HILL ROAD

0.2 MI S OF ROUTE 135, CT

Built 1958 Load: 52.2 t ADT: 109,500

INTERSTATE-95

Fair

Over: UNION AVENUE

0.4 MI N OF ROUTE 130, CT

Built 1959 Load: 52.2 t ADT: 115,000

INTERSTATE-95

Fair

Over: ORANGE AVENUE

0.3 MI N OF ROUTE 121, CT

Built 1958 Load: 52.2 t ADT: 113,500

ROUTE 15

Fair

Over: GILBERT AVE

1.2 MILE WEST OF ROUTE 10, CT

Built 1949 Load: 52.2 t ADT: 77,800

ROUTE 190

Fair

Over: INTERSTATE-84

1.2 MILES EAST OF RTE. 89, CT

Built 1955 Load: 52.2 t ADT: 2,300

INTERSTATE 84

Fair

Over: KOHANZA STREET

.4 MI WEST OF RT 39, CT

Built 1962 Load: 52.2 t ADT: 108,000

I-95 RAMP 313

Fair

Over: AMTRAK RAILROAD

I-95 EXIT NO. 85, CT

Built 1943 Load: 52.2 t ADT: 12,400

SR 702

Fair

Over: INTERSTATE-91 SOUTHBOUND

0.5 MI S OF EXIT 91 SB, CT

Built 1965 Load: 52.2 t ADT: 4,600

I-84 RAMP 169

Fair

Over: I-84 TR 805 & 808

EB RAMP FROM HIGHLAND AVE, CT

Built 1966 Load: 52.2 t ADT: 5,400

SILVERMINE ROAD

Fair

Over: US ROUTE 7 & STILL RIVER

0.9 MI N OF ROUTE 133, CT

Built 1976 Load: 52.2 t ADT: 6,700

KIBBE GROVE ROAD

Fair

Over: SCANTIC RIVER

0.25 MI WEST OF ROUTE 83, CT

Built 1939 Load: 52.2 t ADT: 250

HICKS AVENUE

Fair

Over: AMTRAK RAILROAD

.2 MILE W OF N COLONY ST, CT

Built 1988 Load: 52.2 t ADT: 1,600

ROUTE 69

Fair

Over: PEQUABUCK RIVER

200 FT NORTH OF ROUTE 72, CT

Built 1957 Load: 52.3 t ADT: 8,300

ROUTE 83

Fair

Over: GULF STREAM

.12 MI SOUTH OF ROUTE 190, CT

Built 1957 Load: 52.3 t ADT: 4,200

INTERSTATE-95

Fair

Over: WEST AVENUE

INTERSTATE-95 EXIT NO. 6, CT

Built 1958 Load: 52.4 t ADT: 107,900

ROUTE 8 SOUTHBOUND

Fair

Over: HUNTINGDON AVENUE

.4MI S OF WTRBY WTOWN TL, CT

Built 1964 Load: 52.4 t ADT: 17,500

US ROUTE 7 NB

Fair

Over: UNION PARK SOUTH

ADJ INTERSECT W- ROUTE 1, CT

Built 1970 Load: 52.5 t ADT: 27,400

CHESTNUT STREET

Fair

Over: ROUTE 9 SOUTHBOUND

RT9 SOUTHBOUND EXIT27, CT

Built 1975 Load: 52.5 t ADT: 4,500

US RTE 7 RAMP 048

Fair

Over: US 7 SB &SUGAR HOLLOW RD

DANBURY MALL TO US 7 NB, CT

Built 1986 Load: 52.5 t ADT: 8,800

NEW ROAD

Fair

Over: ROCKY BROOK

0.5 MI S OF E THOMPSON RD, CT

Built 1960 Load: 52.5 t ADT: 364

US ROUTE 6

Fair

Over: SR 607

3 MILES EAST OF ROUTE 12, CT

Built 1961 Load: 52.6 t ADT: 7,300

ROUTE 57

Fair

Over: ASPETUCK RIVER

NORTH OF ROUTE 15 EXIT 42, CT

Built 1930 Load: 52.6 t ADT: 13,700

ROUTE 118

Fair

Over: NAUGATUCK RAILROAD

0.2 MI W OF ROUTE 8, CT

Built 1963 Load: 52.6 t ADT: 3,900

ROUTE 2 WESTBOUND

Fair

Over: ROUTE 94

OVER ROUTE 94, CT

Built 1964 Load: 52.6 t ADT: 21,250

RTE 2 WB & I84-829

Fair

Over: DARLIN STREET

.3 MI E OF HARTFORD TL, CT

Built 1963 Load: 52.6 t ADT: 4,900

BREWSTER STREET

Fair

Over: ASH CREEK

0.3 MI NORTH OF ROUTE 130, CT

Built 1929 Load: 52.6 t ADT: 4,340

HUNGARY ROAD

Fair

Over: SALMON BROOK

0.3 MI NORTH OF ROUTE 20, CT

Built 1967 Load: 52.6 t ADT: 680

MEADOW STREET

Fair

Over: HIGHLAND LAKE OUTLET

500 WEST OF ROUTE 44, CT

Built 1940 Load: 52.6 t ADT: 3,354

DAVIS STREET

Fair

Over: LAKE WHITNEY

0.2 MI E OF WHITNEY AVE, CT

Built 1992 Load: 52.6 t ADT: 9,355

INTERSTATE-95

Fair

Over: BROOKSIDE DRIVE

0.2 MI S OF SERVICE AREA, CT

Built 1958 Load: 52.7 t ADT: 110,000

ROUTE 63

Fair

Over: HOLLENBECK RIVER

NEAR ROUTE 126 JCT JCT, CT

Built 1928 Load: 52.7 t ADT: 1,600

COPSE ROAD

Fair

Over: AMTRAK RAILROAD

0.5 MI N OF US ROUTE 1, CT

Built 1910 Load: 52.7 t ADT: 1,700

ROUTE 9 NORTHBOUND

Fair

Over: ROUTE 9 RAMPS 31 & 32

ROUTE 9 AT EXIT 10, CT

Built 1959 Load: 52.8 t ADT: 18,100

INTERSTATE-691 EB

Fair

Over: US ROUTE 5

1.3 MI W OF I-91, CT

Built 1971 Load: 52.8 t ADT: 40,700

INTERSTATE-91 SB

Fair

Over: POND HILL ROAD

INTERSTATE-91 EXIT NO. 13, CT

Built 1965 Load: 52.8 t ADT: 36,700

US ROUTE 7 NB

Fair

Over: STILL RIVER

1 MI NORTH OF FED RD EXT, CT

Built 1976 Load: 52.8 t ADT: 14,900

STRAWBERRY ROAD

Fair

Over: ABBEY BROOK

0.3 MILE WEST OF ROUTE 83, CT

Built 2023 Load: 52.8 t ADT: 108

INTERSTATE-95 SB

Fair

Over: POHEGNUT POND

0.3 MI S OF ROUTE 117, CT

Built 1964 Load: 52.9 t ADT: 30,500

I-95 NB & RT 1 NB

Fair

Over: I-95 RAMP 313

1.3 MI NORTH OF GOLDSTAR, CT

Built 1973 Load: 52.9 t ADT: 37,900

INTERSTATE-95

Fair

Over: I-95 RMP 047/FIVE MI RIV

I-95 NB EXIT 13, CT

Built 1956 Load: 53.1 t ADT: 115,900

INTERSTATE-95

Fair

Over: ALLING CROSSING ROAD

0.5 MILE S OF ROUTE 162, CT

Built 1957 Load: 53.1 t ADT: 107,900

INTERSTATE-84

Fair

Over: ROCKLEDGE BROOK

1 MILE EAST FARMINGTON TL, CT

Built 1965 Load: 53.1 t ADT: 128,200

INTERSTATE-395 SB

Fair

Over: RAMP 072 (I-395 NB)

2.1 MI N JCT US ROUTE 44, CT

Built 1965 Load: 53.1 t ADT: 10,100

ROUTE 9 SOUTHBOUND

Fair

Over: INTERSTATE-91 NORTHBOUND

1.6 MI N OF ROUTE 372, CT

Built 1965 Load: 53.1 t ADT: 28,300

ROUTE 8 SOUTHBOUND

Fair

Over: LINDLEY STREET & PARKING

2.2 MI N OF I-95, CT

Built 1972 Load: 53.1 t ADT: 46,600

MILL STREET

Fair

Over: BYRAM RIVER

GREENWICH-PORT CHESTER TL, CT

Built 1992 Load: 53.1 t ADT: 14,600

INTERSTATE-95

Fair

Over: US ROUTE 1 SOUTHBOUND

1.4 MI. SO. BRIDGEPORT TL, CT

Built 1958 Load: 53.2 t ADT: 121,100

RT 189 NB & RAMP 6

Fair

Over: ROUTE 187

1 MI SOUTH OF SIMSBURY TL, CT

Built 1960 Load: 53.2 t ADT: 11,800

Showing 2,351-2,400 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.