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 84 WEST

Fair

Over: HOUSATONIC RIVER

1.5 MI EAST OF EXIT 11, CT

Built 1977 Load: 32.7 t ADT: 76,300

SOUTH PARK AVENUE

Fair

Over: MILL RIVER

0.3 MI N OF ROUTE 15, CT

Built 1946 Load: 32.7 t ADT: 4,300

WASHINGTON STREET

Fair

Over: ROUTE 72

JCT COLUMBUS BLVD, CT

Built 1975 Load: 32.7 t ADT: 3,700

PATRIOT DR & MNRR

Fair

Over: STILL RIVER

390 FT S OF WHITE STREET, CT

Built 1975 Load: 32.7 t ADT: 19,830

GABB ROAD

Fair

Over: WASH BROOK

1 MILE WEST OF ROUTE 189, CT

Built 1981 Load: 32.7 t ADT: 3,852

RIVER GATE DRIVE

Fair

Over: W BRANCH SAUGATUCK RV

250 FT W OF NEWTOWN TPKE, CT

Built 1980 Load: 32.7 t ADT: 230

MOUNTAIN ROAD #1

Fair

Over: TUMBLE BROOK

200 SO OF BLOOMFIELD TL, CT

Built 1982 Load: 32.7 t ADT: 9,992

WETHERSFIELD ROAD

Fair

Over: MATTABESSET RIVER

0.2 MI S OF ROUTE 160, CT

Built 1970 Load: 32.7 t ADT: 2,081

MILL STREET

Fair

Over: SALMON BROOK

130FT N. of RTE 94, CT

Built 1939 Load: 32.7 t ADT: 252

COUNTRY CLUB RD #2

Fair

Over: COLD BROOK

0.5 MI. WEST OF WASSUC RD, CT

Built 2001 Load: 32.7 t ADT: 1,299

EAST STREET

Fair

Over: BRADLEY BROOK

1.0 Mile East of RTE 189, CT

Built 1937 Load: 32.7 t ADT: 2,630

OLCOTT STREET

Fair

Over: HOP BROOK

0.5 MI WEST OF US RTE 44, CT

Built 1973 Load: 32.7 t ADT: 6,100

WASHINGTON AVE. #3

Fair

Over: MAD RIVER

0.1 MILE WEST OF SR 847, CT

Built 1906 Load: 32.7 t ADT: 6,000

DOWD STREET

Fair

Over: MILL BROOK

50 FEET WEST OF ROUTE 176, CT

Built 1969 Load: 32.7 t ADT: 2,923

BARNDOOR HILLS RD

Fair

Over: BISSELL BROOK

1500 NORTH OF HOLCOMB RD, CT

Built 1956 Load: 32.7 t ADT: 700

CEDAR GLEN

Fair

Over: HOP BROOK

350SOUTH OF CEDAR HLL RD, CT

Built 1978 Load: 32.7 t ADT: 473

MAPLE STREET

Fair

Over: SCANTIC RIVER

0.2 MI SOUTH OF ROUTE 190, CT

Built 1880 Load: 32.7 t ADT: 5,200

CURTISS STREET

Fair

Over: QUINNIPIAC RIVER

0.2 MI W. OF ROUTE 10, CT

Built 1955 Load: 32.7 t ADT: 3,279

LAZY LANE

Fair

Over: QUINNIPIAC RIVER

200 FT W OF ROUTE 10, CT

Built 1950 Load: 32.7 t ADT: 1,754

SOUTH END ROAD

Fair

Over: MISERY BROOK

0.5 MI N OF ROUTE 322, CT

Built 1900 Load: 32.7 t ADT: 5,712

WINDSOR AVENUE

Fair

Over: HOCKANUM RIVER

400 FT FROM JCT ROUTE 74, CT

Built 1900 Load: 32.7 t ADT: 1,655

PHEASANT HILL DR

Fair

Over: ROCKLEDGE BROOK

1200 E OF WESTMINSTER DR, CT

Built 1900 Load: 32.7 t ADT: 375

JAMES ROAD

Fair

Over: MOUNT HOPE RIVER

1000 FT EAST OF ROUTE 89, CT

Built 1970 Load: 32.7 t ADT: 256

WESTFORD HILL ROAD

Fair

Over: MOUNT HOPE RIVER

0.2 MILE WEST OF ROUTE 89, CT

Built 1960 Load: 32.7 t ADT: 333

BISHOP ROAD

Fair

Over: GARDNER BROOK

400 FT SE OF ROUTE 163, CT

Built 2001 Load: 32.7 t ADT: 495

BOYDEN STREET

Fair

Over: HANCOCK BROOK

300 FT. EAST OF SR 847, CT

Built 1930 Load: 32.7 t ADT: 2,300

MILL HILL ROAD

Fair

Over: MEADOW BROOK

0.2 MI S OF ROUTE 2, CT

Built 1979 Load: 32.7 t ADT: 433

SOUTH RIVER ROAD

Fair

Over: SKUNGAMAUG RIVER

300FT FR JCT CASE RD, CT

Built 1973 Load: 32.7 t ADT: 739

NORTH RIVER ROAD

Fair

Over: SKUNGAMAUG RIVER

JUNCTION BROADWAY ROAD, CT

Built 1974 Load: 32.7 t ADT: 1,300

INDUSTRIAL PARK RD

Fair

Over: PATTAGANSETT RIVER

700 FT W OF ROUTE 161, CT

Built 1968 Load: 32.7 t ADT: 2,302

GALES FERRY ROAD

Fair

Over: LEDYARD RESERVOIR OVFL

0.8 MI N OF ROUTE 117, CT

Built 1954 Load: 32.7 t ADT: 688

BALLOUVILLE ROAD

Fair

Over: FIVE MILE RIVER

1 MI EAST OF ROUTE 12, CT

Built 1860 Load: 32.7 t ADT: 2,322

TOWN WOODS ROAD

Fair

Over: MILL BROOK

0.2 MILE N OF US ROUTE 1, CT

Built 1982 Load: 32.7 t ADT: 2,163

SILL LANE #1

Fair

Over: MILL BROOK

0.4 MI N OF US ROUTE 1, CT

Built 1982 Load: 32.7 t ADT: 1,196

FIVE MILE RIVER RD

Fair

Over: FIVE MILE RIVER

.2 MI E OF TUCKER HILL RD, CT

Built 1930 Load: 32.7 t ADT: 875

SPRING STREET

Fair

Over: MIDDLE RIVER

100 FT FR JCT ROUTE 190, CT

Built 1912 Load: 32.7 t ADT: 914

CENTER STREET

Fair

Over: MIDDLE RIVER

130 FT FR JCT WEST STREET, CT

Built 1870 Load: 32.7 t ADT: 600

COOPER LANE

Fair

Over: EDSON BROOK

1000 FT SO. OF RTE. 190, CT

Built 1940 Load: 32.7 t ADT: 385

QUADDICK TOWN FARM

Fair

Over: FIVE MILE RIVER

100 W OF FRED DAVIS RD, CT

Built 2000 Load: 32.7 t ADT: 596

DEPOT ROAD

Fair

Over: PONSET BROOK

0.1 MI FROM RT 154, CT

Built 1983 Load: 32.7 t ADT: 408

SCOVIL ROAD

Fair

Over: CANDLEWOOD HILL BROOK

AT JCT OF CANDLEHILL ROAD, CT

Built 1983 Load: 32.7 t ADT: 463

SILL LANE #2

Fair

Over: MILL BROOK

0.2 MI W OF US ROUTE 1, CT

Built 1982 Load: 32.7 t ADT: 382

SOUTH BROOKSVALE R

Fair

Over: WILLOW BROOK

0.8 MI W OF ROUTE 10, CT

Built 1960 Load: 32.7 t ADT: 1,350

MILL STREET

Fair

Over: HARBOR BROOK

300 FT W OF PRATT STREET, CT

Built 1930 Load: 32.7 t ADT: 808

CEDAR STREET

Fair

Over: HARBOR BROOK

0.2 MI N OF PRATT STREET, CT

Built 1910 Load: 32.7 t ADT: 792

CONCORD DRIVE

Fair

Over: BROOK

0.4 M S OF HEATHERWOOD RD, CT

Built 1978 Load: 32.7 t ADT: 214

CONCORD DRIVE

Fair

Over: BROOK

0.3 MI S HEATHERWOOD RD, CT

Built 1978 Load: 32.7 t ADT: 209

TOMMYS PATH

Fair

Over: GULF BROOK

0.3 MI EAST OF ROUTE 22, CT

Built 1979 Load: 32.7 t ADT: 241

UNIVERSAL DR NORTH

Fair

Over: MUDDY RIVER

0.1 MI S SACKETT PT RD, CT

Built 1960 Load: 32.7 t ADT: 14,364

FOREST STREET

Fair

Over: TUTTLE BROOK

1 MI EAST OF BURR STREET, CT

Built 1978 Load: 32.7 t ADT: 136

Showing 751-800 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.