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

OLD DIKE ROAD

Fair

Over: BOOTH HILL BROOK

100 W OF HEMLOCK TRAIL, CT

Built 1988 Load: 32.7 t ADT: 956

ROUTE 149

Fair

Over: MOODUS RIVER

1.1 MI N OF ROUTE 151, CT

Built 1989 Load: 32.7 t ADT: 3,200

SR 518 -ROBERTS ST

Fair

Over: I-84 AND EXIT 58 RAMPS

0.1 MILE NORTH OF SR 502, CT

Built 1987 Load: 32.7 t ADT: 15,500

US ROUTE 7

Fair

Over: SAUGATUCK RIVER

75 NO OF BENNETS POND RD, CT

Built 1990 Load: 32.7 t ADT: 24,600

ROUTE 71

Fair

Over: WILLOW BROOK

NEW BRITAIN-BERLIN TOWN L, CT

Built 1990 Load: 32.7 t ADT: 12,100

TOPSTONE ROAD

Fair

Over: NORWALK RIVER

APPROX 200 E OF ROUTE 7, CT

Built 1955 Load: 32.7 t ADT: 2,010

ROUTE 189

Fair

Over: EAST BRANCH SALMON BROOK

1.05 MI SOUTH OF MASS SL, CT

Built 1990 Load: 32.7 t ADT: 1,400

SR 736

Fair

Over: CALF PEN MEADOW CREEK

1.2 MI. EAST OF ROUTE 162, CT

Built 1990 Load: 32.7 t ADT: 3,000

RASTED LANE

Fair

Over: MEETINGHOUSE BROOK

0.1 MI E OF S CURTIS ST, CT

Built 1962 Load: 32.7 t ADT: 51

SANDY BROOK ROAD

Fair

Over: SANDY BROOK

0.3 MILES WEST OF ROUTE 8, CT

Built 1948 Load: 32.7 t ADT: 673

WESTERN BOULEVARD1

Fair

Over: SALMON BROOK

.5 MI NO OF INT ROUTE 94, CT

Built 1988 Load: 32.7 t ADT: 2,364

ROUTE 39

Fair

Over: BALL POND BROOK

0.25 MI N OF RTE 37 INT, CT

Built 1990 Load: 32.7 t ADT: 7,100

FIELD POINT ROAD

Fair

Over: HORSENECK BROOK

2800 NORTH OF I-95, CT

Built 1894 Load: 32.7 t ADT: 12,240

ROOD AVE & PLYMOUT

Fair

Over: DECKERS BROOK

0.2 MILES WEST OF RTE.159, CT

Built 1979 Load: 32.7 t ADT: 1,800

DEPOT ROAD

Fair

Over: WILLIMANTIC RIVER

.2 MI FROM JRT ROUTE 32, CT

Built 1900 Load: 32.7 t ADT: 527

CATO CORNER ROAD

Fair

Over: PINE BROOK

0.8 MI S OF ROUTE 149, CT

Built 1990 Load: 32.7 t ADT: 468

INTERSTATE-91 SB

Fair

Over: SR 510 (MAIN STREET)

0.4 MI N WINDSOR LOCKS TL, CT

Built 1959 Load: 32.7 t ADT: 54,800

THAYER ROAD

Fair

Over: BIBLE ROCK BROOK

165 FT W. OF ROUTE 154, CT

Built 1990 Load: 32.7 t ADT: 484

SCHOOL HOUSE ROAD

Fair

Over: AMTRAK RAILROAD

0.3 MI N OF US ROUTE 1, CT

Built 1933 Load: 32.7 t ADT: 2,000

WAVERLY PARK ROAD

Fair

Over: BROOK

0.1 MI N OF ROUTE 148, CT

Built 1990 Load: 32.7 t ADT: 210

GREEN HILL ROAD

Fair

Over: NECK RIVER

1.1 MI W OF ROUTE 79, CT

Built 1983 Load: 32.7 t ADT: 2,996

OLD MILL LANE

Fair

Over: WATER SUPPLY BROOK

1 MILE NORTH OF ROUTE 4, CT

Built 1983 Load: 32.7 t ADT: 270

PAUL MANAFORT DR

Fair

Over: STREAM

0.1 MI W OF JCT W/SR 175, CT

Built 1970 Load: 32.7 t ADT: 270

SCOVILLE ROAD

Fair

Over: CHIDSEY BROOK

1000 EAST OF ROUTE 167, CT

Built 1981 Load: 32.7 t ADT: 1,257

SPRUCE STREET

Fair

Over: FOLLY BROOK

200 W OF FOLLYBROOK BLVD, CT

Built 1977 Load: 32.7 t ADT: 70

STOCKING MILL ROAD

Fair

Over: TWO STONE BROOK

0.1 MI NO. OF HIGHLAND ST, CT

Built 1981 Load: 32.7 t ADT: 135

LITTLE BROOK ROAD

Fair

Over: TOKENEKE BROOK

0.2 MI W OF RAYMOND ST, CT

Built 1966 Load: 32.7 t ADT: 58

ROUTE 68

Fair

Over: MUDDY RIVER

0.3 MI E OF INTERSTATE-91, CT

Built 1992 Load: 32.7 t ADT: 14,700

HERITAGE DRIVE

Fair

Over: STOCKING BROOK

0.3 MI W OF ROUTE 71, CT

Built 1985 Load: 32.7 t ADT: 238

HEMLOCK ROAD

Fair

Over: CLAPBOARD OAK BROOK

0.8MI W OF INT RTE133&867, CT

Built 1950 Load: 32.7 t ADT: 133

INTERSTATE-95

Fair

Over: ROUTE 85

INTERSTATE-95 EXIT NO. 82, CT

Built 1991 Load: 32.7 t ADT: 44,900

BROAD STREET

Fair

Over: FERRY CREEK

200 FT EAST OF ROUTE 130, CT

Built 1981 Load: 32.7 t ADT: 590

FLAX HILL ROAD

Fair

Over: KEELERS BROOK

0.1 MI EAST OF KEELER AVE, CT

Built 1980 Load: 32.7 t ADT: 9,610

NEWTOWN AVENUE

Fair

Over: STONY BROOK

0.5 MI NORTH OF ROUTE 53, CT

Built 1983 Load: 32.7 t ADT: 2,785

MARTIN L KING DR

Fair

Over: BROOK

AT RTE 136 INTERSECTION, CT

Built 1984 Load: 32.7 t ADT: 12,300

CORN HILL ROAD

Fair

Over: FARMILL RIVER

1 MI WEST OF ROUTE 108, CT

Built 1983 Load: 32.7 t ADT: 113

BLOOMINGDALE ROAD

Fair

Over: HUNTS BROOK

375 S MILLERS POND ROAD, CT

Built 1970 Load: 32.7 t ADT: 678

CROSS ROAD

Fair

Over: JORDAN BROOK

200 FT S OF ROUTE 85, CT

Built 1987 Load: 32.7 t ADT: 4,002

MCCLAVE ROAD

Fair

Over: NORTH BROOK

0.8 MILE EAST OF RTE. 183, CT

Built 2002 Load: 32.7 t ADT: 122

HOWARD STREET

Fair

Over: BROOK

150 FT N OF HAMILTON ST, CT

Built 1975 Load: 32.7 t ADT: 10,500

LAUREL AVENUE

Fair

Over: ROOSTER RIVER CONDUIT

300 EAST OF ROUTE 59, CT

Built 1984 Load: 32.7 t ADT: 6,212

ROUTE 171

Fair

Over: MILL BROOK

1.7 MILES WEST OF RTE 169, CT

Built 1992 Load: 32.7 t ADT: 4,600

BRIDGE STREET

Fair

Over: HORSENECK BROOK

200 EAST OF PROSPECT ST, CT

Built 1980 Load: 32.7 t ADT: 320

DALENE DRIVE

Fair

Over: WEST BRANCH SALMON BROOK

200 SOUTH OF PEDERSEN RD, CT

Built 1945 Load: 32.7 t ADT: 129

GARAMELLA BLVD

Fair

Over: PADANARAM BROOK

0.2 MI E OF ROUTE 53, CT

Built 1986 Load: 32.7 t ADT: 11,265

STONY BROOK ROAD

Fair

Over: STONY BROOK

850 FT FROM NORWALK TL, CT

Built 1985 Load: 32.7 t ADT: 245

PARTRICK ROAD

Fair

Over: STONY BROOK

0.6 MI NORTH OF ROUTE 53, CT

Built 1985 Load: 32.7 t ADT: 255

LONGMEADOWS ROAD

Fair

Over: E. BRANCH SILVERMINE RVR

EAST OF ROUTE 33, CT

Built 1980 Load: 32.7 t ADT: 395

ELMDALE ROAD

Fair

Over: KITT BROOK

1.15 MILES S OF ROUTE 169, CT

Built 1970 Load: 32.7 t ADT: 176

DOROTHY DRIVE

Fair

Over: WASH BROOK

0.2 MILE FROM ROUTE 189, CT

Built 1973 Load: 32.7 t ADT: 130

Showing 901-950 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.