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

DAVIS AVENUE #2

Good

Over: INDIAN HARBOR

.5 MI S OF EXIT 4 I-95NB, CT

Built 2022 Load: 41.1 t ADT: 7,215

LAUREL LANE

Good

Over: MOUNT HOPE RIVER

.1 MI EAST OF ROUTE 89, CT

Built 2013 Load: 41.1 t ADT: 6

BECKLEY ROAD

Good

Over: SPRUCE BROOK

0.7 MI N OF ROUTE 372, CT

Built 2012 Load: 41.1 t ADT: 2,060

LYNN ROAD

Good

Over: FALLS RIVER

40 FT N. OF POND MEADOW R, CT

Built 2019 Load: 41.1 t ADT: 515

ROUTE 10

Good

Over: QUINNIPIAC RIVER

0.8 MI N OF I-84, CT

Built 1972 Load: 41.5 t ADT: 13,500

HARTFORD ROAD

Good

Over: SOUTH FORK HOCKANUM RIV

2000 FT EAST OF SR 502, CT

Built 2020 Load: 41.5 t ADT: 5,800

NEHANTIC TRAIL #2

Good

Over: MUD CREEK

50 SOUTH/RED BIRD TRAIL, CT

Built 2003 Load: 41.5 t ADT: 268

ROUTE 152

Good

Over: RACE BROOK

0.7 MI S OF ROUTE 34, CT

Built 1983 Load: 41.5 t ADT: 3,500

ROUND HILL ROAD

Good

Over: CONVERSE POND BROOK

NEAR EXIT 28-ROUTE 15, CT

Built 2018 Load: 41.5 t ADT: 6,760

SR 616

Good

Over: BROOK

3.1 MI E OF ROUTE 85, CT

Built 2014 Load: 41.7 t ADT: 1,800

BROOKLYN STREET

Good

Over: HOCKANUM RIVER

100 FT FR JCT ROUTE 74, CT

Built 1988 Load: 41.7 t ADT: 733

INTERSTATE-95

Good

Over: LONG HILL ROAD

0.4 MI S OF ROUTE 77, CT

Built 1958 Load: 41.8 t ADT: 59,300

I-84 TR 829

Good

Over: I-84 EB & I-84 TR 828

.20 MI E OF HARTFORD TL, CT

Built 2019 Load: 41.8 t ADT: 8,800

SR 500 SB TR 805

Good

Over: I-84 EB TR 833 & 831

0.26 MI S OF GOVERNOR ST, CT

Built 2017 Load: 41.8 t ADT: 9,000

ROUTE 317

Good

Over: POMPERAUG RIVER

1.4 MILES WEST OF ROUTE 6, CT

Built 1989 Load: 41.8 t ADT: 5,200

BEACH ROAD

Good

Over: BRIDE BROOK

OUTLET ROAD FROM BEACH, CT

Built 1992 Load: 41.8 t ADT: 3,323

I-95 SB RAMP 347A

Good

Over: INTERSTATE-95

0.1 MI S OF ROUTE 337, CT

Built 2006 Load: 41.8 t ADT: 2,000

ROUTE 2

Good

Over: MILLTOWN ROAD

0.2 MI E OF ROUTE 214, CT

Built 2009 Load: 41.8 t ADT: 9,300

EDMOND ROAD

Good

Over: UNNAMED TRIBUTARY

SW OF I-84 EXIT10 ON-RAMP, CT

Built 2020 Load: 41.8 t ADT: 2,000

ROUTE 9 NORTHBOUND

Good

Over: EAST STREET #2

0.9 MILE SOUTH RTE 175, CT

Built 1975 Load: 42.1 t ADT: 38,800

ROUTE 74

Good

Over: HOCKANUM RIVER

.5 MI WEST OF ROUTE 83, CT

Built 2016 Load: 42.1 t ADT: 5,300

ROUTE 155

Good

Over: SUMNER BROOK

0.7 MI W OF ROUTE 9, CT

Built 1936 Load: 42.1 t ADT: 9,100

MERRYALL ROAD

Good

Over: WEST ASPETUCK RIVER

SOUTH OF W MEETING HOUSE, CT

Built 2004 Load: 42.1 t ADT: 1,665

SUNNYSIDE AVENUE

Good

Over: TURKEY BROOK

100 FT EAST OF FALLS AVE, CT

Built 2012 Load: 42.1 t ADT: 4,914

BEACHSIDE AVENUE

Good

Over: INTERSTATE-95

2.7 MILE NORTH OF RTE 136, CT

Built 2021 Load: 42.4 t ADT: 3,790

SR 724 Westbound

Good

Over: INTERSTATE 91 & US 1

0.2 MI N OF ROUTE 34, CT

Built 2016 Load: 42.4 t ADT: 15,200

ROUTE 77

Good

Over: BROOK

3.7 MI N OF ROUTE 80, CT

Built 2011 Load: 42.4 t ADT: 4,500

ROUTE 77

Good

Over: WEST RIVER

0.3 MI N OF ROUTE 80, CT

Built 1988 Load: 42.4 t ADT: 5,400

PEARL STREET

Good

Over: P & W RAILROAD

1/4 MI. NORTH OF RTE.66, CT

Built 2009 Load: 42.5 t ADT: 2,958

BUTTON SHOP ROAD

Good

Over: HOUSATONIC RR

.5 MI.EAST OF RTE.25, CT

Built 1911 Load: 42.6 t ADT: 2,200

PUTNAM ROAD

Good

Over: FIVE MILE RIVER

100 NORTH OF RIVER ROAD, CT

Built 1999 Load: 42.6 t ADT: 129

RIVERSIDE STREET

Good

Over: STEELE BROOK

200 FT NORTH OF ROUTE 73, CT

Built 1992 Load: 42.7 t ADT: 2,686

ROUTE 109

Good

Over: WIGWAM RESERVOIR

ON THOMASTON TOWN LINE, CT

Built 2019 Load: 42.8 t ADT: 2,500

ROUTE 39

Good

Over: MORRISSEY BROOK

1.2 MI N OF INT OF 37&39, CT

Built 2006 Load: 42.8 t ADT: 1,300

SMITH PLACE

Good

Over: MILL BROOK

INT SMITH PLACE & RTE 128, CT

Built 1955 Load: 42.8 t ADT: 25

ROUTE 164

Good

Over: BROAD BROOK

1.7 MI NORTH OF ROUTE 165, CT

Built 1940 Load: 42.8 t ADT: 4,000

ROUTE 61

Good

Over: NONNEWAUG RIVER

0.2 MILE NORTH OF ROUTE 6, CT

Built 1989 Load: 42.8 t ADT: 3,400

ROUTE 127

Good

Over: PEQUONNOCK RIVER

0.4 MI N OF ROUTE 15, CT

Built 1980 Load: 42.9 t ADT: 11,400

FABYAN WOODSTCK RD

Good

Over: QUINNEBAUG RIVER

0.6 MI SOUTH OF ROUTE 131, CT

Built 1999 Load: 42.9 t ADT: 2,295

BUTTON BALL ROAD

Good

Over: AMTRAK RAILROAD

0.8 MI N OF ROUTE 156, CT

Built 1933 Load: 43.0 t ADT: 433

ROUTE 47

Good

Over: SHEPAUG RIVER

2 MILES SOUTH OF U.S. 202, CT

Built 1929 Load: 43.1 t ADT: 1,900

CENTRAL AVENUE

Good

Over: METRO NORTH RAILROAD

0.5 MI SOUTH OF ROUTE 1, CT

Built 1903 Load: 43.1 t ADT: 7,600

BITGOOD ROAD

Good

Over: HOPEVILLE POND

0.8 MI NORTH OF ROUTE 138, CT

Built 2014 Load: 43.1 t ADT: 347

EASTERN BOULEVARD

Good

Over: SALMON BROOK

APPROX 370NORTH OF RT 94, CT

Built 2018 Load: 43.1 t ADT: 6,492

COMMERCE DRIVE

Good

Over: STREAM

300 FT S OF JUNC OF SR565, CT

Built 2000 Load: 43.1 t ADT: 104

ROUTE 8

Good

Over: ROSE STREET

0.6 MI SOUTH OF ROUTE 67, CT

Built 1961 Load: 43.4 t ADT: 53,800

ROUTE 72

Good

Over: PEQUABUCK RIVER

1 MILE NORTH OF ROUTE 69, CT

Built 1995 Load: 43.4 t ADT: 12,000

I-84 & EXIT RAMP28

Good

Over: JUDD BROOK

0.3 MI W OF ROUTE 322, CT

Built 1961 Load: 43.4 t ADT: 60,300

INTERSTATE-291 WB

Good

Over: MAIN STREET

0.3 MILE WEST OF EXIT 4, CT

Built 1993 Load: 43.4 t ADT: 31,000

ROUTE 17A

Good

Over: CARR BROOK

2.3 MI N OF ROUTE 66, CT

Built 2014 Load: 43.4 t ADT: 4,900

Showing 3,501-3,550 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.