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

ROUTE 171

Fair

Over: SAW MILL BROOK

0.5 MILE WEST OF RTE 169, CT

Built 1951 Load: 66.8 t ADT: 10,400

ROUTE 32 SB

Fair

Over: WILLIAMS STREET NO 1

0.2 MI S OF I-95, CT

Built 1975 Load: 67.2 t ADT: 10,500

MCDERMOTT ROAD

Fair

Over: LITTLE RIVER

0.47 M. S OF Rte 103, CT

Built 1960 Load: 67.4 t ADT: 335

NORTH MOUNTAIN RD

Fair

Over: I-84 EB AND TR 816

BETWEEN EXITS 35&36 I-84, CT

Built 1969 Load: 67.7 t ADT: 675

RICHMOND HILL AVE

Fair

Over: RIPPOWAM RIVER

OPP GREENWICH AVE, CT

Built 1957 Load: 67.7 t ADT: 10,200

US ROUTE 6

Fair

Over: ROUTE 10

0.4 MILE EAST OF SR 552, CT

Built 1933 Load: 67.9 t ADT: 18,500

ROUTE 67

Fair

Over: LITTLE RIVER

0.6 MILE WEST OF ROUTE 8, CT

Built 1934 Load: 67.9 t ADT: 17,200

WINCHESTER ROAD

Fair

Over: BAKERSVILLE BROOK

.2 MI W OF MAPLE HOLLOWRD, CT

Built 1955 Load: 67.9 t ADT: 398

MINOR BRIDGE ROAD

Fair

Over: SHEPAUG RIVER

PARK OFF SOUTH STREET, CT

Built 1962 Load: 68.0 t ADT: 800

ROUTE 72 TR 801

Fair

Over: ROUTE 72 NORTHBOUND

OVER RTE 72 NB, CT

Built 1978 Load: 68.2 t ADT: 10,400

INTERSTATE-95

Fair

Over: US ROUTE 1

EXIT 39A & 39B I-95, CT

Built 1958 Load: 68.4 t ADT: 108,900

INTERSTATE-395

Fair

Over: ROUTE 14A

OVER ROUTE 14A, CT

Built 1958 Load: 68.4 t ADT: 24,900

INTERSTATE 84

Fair

Over: ROCKWELL ROAD

.2 MI WEST OF US 7 EXIT 7, CT

Built 1962 Load: 68.4 t ADT: 120,000

ROUTE 72 EASTBOUND

Fair

Over: SR 555 (WEST MAIN ST.)

0.4 MILES EAST ROUTE 372, CT

Built 1973 Load: 68.4 t ADT: 35,100

INTERSTATE-91

Fair

Over: I-91 RAMP 002

0.5 MI N OF I-95, CT

Built 1965 Load: 68.4 t ADT: 141,200

INTERSTATE-84 WB

Fair

Over: SLATER STREET

0.6 MILE WEST OF EXIT 63, CT

Built 1984 Load: 68.8 t ADT: 63,300

FRENCHTOWN ROAD

Fair

Over: ROUTE 15

0.5 MI N OF ROUTE 111, CT

Built 1942 Load: 68.9 t ADT: 2,224

SR 608

Fair

Over: YANTIC RIVER

0.49 MI WEST OF SR 612, CT

Built 1934 Load: 68.9 t ADT: 3,200

INTERSTATE-84 EB

Fair

Over: SLATER STREET

0.6 MILE WEST OF EXIT 63, CT

Built 1984 Load: 68.9 t ADT: 63,300

ROUTE 97

Fair

Over: COLD BROOK

1.1 MI SOUTH OF ROUTE 207, CT

Built 2020 Load: 69.0 t ADT: 2,900

INTERSTATE-91

Fair

Over: BRAINARD ROAD

0.5 MILE SOUTH OF EXIT 49, CT

Built 1960 Load: 69.0 t ADT: 85,900

I-84 RAMPS & LOCAL

Fair

Over: PARK RIVER CONDUIT

SO BRANCH - ARMORY PUMP, CT

Built 1964 Load: 69.0 t ADT: 33,900

I-84 RAMPS 203 204

Fair

Over: TROUT BROOK

150N TROUT BROOK DRIVE, CT

Built 1965 Load: 69.3 t ADT: 2,800

ROUTE 176

Fair

Over: MILL BROOK

0.2 MI NO OF STODDARD AVE, CT

Built 1990 Load: 69.3 t ADT: 9,000

ROUTE 32

Fair

Over: MIDDLE RIVER

250 FT SOUTH OF ROUTE 190, CT

Built 1952 Load: 69.7 t ADT: 4,400

US ROUTE 6

Fair

Over: BLACKMANS BROOK

1.24 MI WEST COLUMBIA TL, CT

Built 2000 Load: 69.7 t ADT: 10,600

ROUTE 174

Fair

Over: ROUTE 9 TR 813

OVER RTE 9S TO ROUTE 72 N, CT

Built 1978 Load: 69.8 t ADT: 12,600

ROUTE 9 NORTHBOUND

Fair

Over: MATTABESSET RIVER

1.5 MI SOUTH OF ROUTE 72, CT

Built 1988 Load: 69.8 t ADT: 32,900

INTERSTATE-291 EB

Fair

Over: I-84 RAMP 306

0.3 MI W OF JCT I-84 EB, CT

Built 1986 Load: 69.8 t ADT: 7,700

ROUTE 66

Fair

Over: FAWN BROOK

1.13 M E HEBRON MARLBR TL, CT

Built 1927 Load: 70.0 t ADT: 5,600

ROUTE 66

Fair

Over: NEW ENGLAND CENTRAL RR

0.3 MILE WEST OF ROUTE 32, CT

Built 1938 Load: 70.3 t ADT: 7,300

I-95 RAMP 101 & RO

Fair

Over: JOHNSONS CREEK

I-95 NORTHOUND EXIT 30, CT

Built 1959 Load: 70.3 t ADT: 27,900

FORBES STREET

Fair

Over: HOCKANUM RIVER

120 FT FR JCT GOODWIN LA, CT

Built 1904 Load: 70.3 t ADT: 6,700

SEYMOUR AVENUE

Fair

Over: ROUTE 8

0.9 MI N OF ROUTE 34, CT

Built 1952 Load: 70.7 t ADT: 9,096

INTERSTATE-95

Fair

Over: COMMERCE DRIVE

I-95 VICINITY EXIT 25, CT

Built 1959 Load: 71.0 t ADT: 110,600

US ROUTE 202

Fair

Over: NEPAUG RIVER

1.5 MILE NO. OF ROUTE 219, CT

Built 2008 Load: 71.0 t ADT: 10,500

ROUTE 30

Fair

Over: PODUNK RIVER

2.32 MILES NORTH OF RTE 5, CT

Built 1938 Load: 71.0 t ADT: 8,600

ROUTE 101

Fair

Over: FIVE MILE RIVER

.6 MI W OF INTERSTATE-395, CT

Built 1940 Load: 71.0 t ADT: 11,400

SR 844

Fair

Over: MAD RIVER

.2 MILE EAST OF ROUTE 69, CT

Built 1935 Load: 71.1 t ADT: 9,700

ROUTE 64

Fair

Over: OLD SHERMAN HILL ROAD

150 WEST O MIDDLEBURY TL, CT

Built 1931 Load: 71.3 t ADT: 7,400

ROUTE 222

Fair

Over: LEADMINE BROOK

0.2 MI NORTH THOMASTON TL, CT

Built 1960 Load: 71.3 t ADT: 850

ROUTE 174

Fair

Over: AMTRAK RAILROAD

1 MI E OF NEW BRITAIN TL, CT

Built 1940 Load: 71.4 t ADT: 13,000

INTERSTATE-95

Fair

Over: ROUTE 130 (FAIRFIELD AV)

INTERSTATE-95 EXIT NO. 25, CT

Built 2006 Load: 71.7 t ADT: 110,600

PIE HILL ROAD

Fair

Over: BANTAM RIVER

1 MILE EAST OF ROUTE 63, CT

Built 1950 Load: 72.3 t ADT: 192

CIRCLE DRIVE

Fair

Over: PUMPKIN GROUND BROOK

0.2 MI N OF CUTSPRING RD, CT

Built 1976 Load: 72.3 t ADT: 103

EAST LAKE STREET

Fair

Over: EAST LAKE BROOK

INT MORGAN ROAD, CT

Built 1984 Load: 72.8 t ADT: 1,185

ERICKSON ROAD

Fair

Over: HOUSATONIC RAILROAD

1 MILE EAST OF ROUTE 7, CT

Built 1992 Load: 72.9 t ADT: 760

SCOTT HILL ROAD #1

Fair

Over: ROUTE 2

2 MI WEST OF RTE 163, CT

Built 1971 Load: 73.5 t ADT: 550

CHAPEL HILL ROAD

Fair

Over: WEST ASPETUCK RIVER

0.25 MI N OF BIG BEAR RD, CT

Built 1975 Load: 73.9 t ADT: 613

SR502 E. RIVER DR

Fair

Over: HOCKANUM RIVER

SR 502 (SILVER LANE EXT.), CT

Built 1992 Load: 73.9 t ADT: 5,200

Showing 2,701-2,750 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.