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 156

Good

Over: E BRANCH EIGHT MILE RV

0.6 MI E OF ROUTE 82, CT

Built 1988 Load: 48.5 t ADT: 2,500

US ROUTE 44

Good

Over: MOUNT HOPE RIVER

.1 MI WEST OF ROUTE 89, CT

Built 1990 Load: 48.5 t ADT: 6,300

ROUTE 8

Good

Over: LONG HILL AVENUE

0.5 MI S OF ROUTE 110, CT

Built 1950 Load: 48.6 t ADT: 66,000

LAKE AVENUE

Good

Over: ROUTE 15

4.8 MI S OF ROUTE 104, CT

Built 1940 Load: 48.6 t ADT: 1,800

ROUTE 15 RAMP 161

Good

Over: ROUTE 15

15 SB RAMP TO BRAINARD RD, CT

Built 2010 Load: 48.6 t ADT: 5,600

PROSPECT AVENUE

Good

Over: INTERSTATE 84

0.33 MI E OF OAKWOOD AVE, CT

Built 1965 Load: 48.6 t ADT: 9,800

US ROUTE 1

Good

Over: STONY BROOK

2.2 MI E OF ROUTE 161, CT

Built 2013 Load: 48.6 t ADT: 5,600

SR 616

Good

Over: GILLETT BROOK

1.9 MI E OF COLCHESTER TL, CT

Built 1923 Load: 48.6 t ADT: 1,600

ROUTE 82

Good

Over: SUCCOR BROOK

0.5 MI EAST OF CONN RIVER, CT

Built 2014 Load: 48.6 t ADT: 6,600

MILL STREET

Good

Over: SUMNER BROOK

0.1 MI N OF SAYBROOK ROAD, CT

Built 1953 Load: 48.6 t ADT: 158

MERRITT STREET

Good

Over: HORSE TAVERN BROOK

AT THE JCT OF VALLEY ROAD, CT

Built 2013 Load: 48.6 t ADT: 386

US ROUTE 1

Good

Over: WEST RIVER

1.0 MI N OF I-95, CT

Built 1994 Load: 48.6 t ADT: 14,300

SELLECK HILL ROAD

Good

Over: WACHOCASTINOOK BROOK

JCT FACTORY STREET, CT

Built 2002 Load: 48.8 t ADT: 645

DOBSON ROAD

Good

Over: DOBSONVILLE POND

0.2 MILES SO. OF RTE. 30, CT

Built 1986 Load: 48.8 t ADT: 5,200

WHEELERS FARMS RD.

Good

Over: SR 796

0.2 MI N OF I-95, CT

Built 1941 Load: 48.9 t ADT: 5,900

ROUTE 66

Good

Over: JEREMYS RIVER

0.4 MI W OF ROUTE 85, CT

Built 1967 Load: 48.9 t ADT: 6,300

MILL BRIDGE RD # 1

Good

Over: BUNGEE BROOK

1650 NORTH OF ROUTE 244, CT

Built 2017 Load: 48.9 t ADT: 265

HARBOR ROAD

Good

Over: MILL RIVER

400 FT SOUTH OF US RTE 1, CT

Built 1927 Load: 48.9 t ADT: 1,600

STEPNEY ROAD

Good

Over: ASPETUCK RIVER

Poverty Hollow/ Stepney, CT

Built 2016 Load: 48.9 t ADT: 625

ROUTE 219

Good

Over: WEST BRANCH SALMON BROOK

100 FT. SOUTH OF ROUTE 20, CT

Built 1959 Load: 49.0 t ADT: 7,200

SR 478(N SHORE RD)

Good

Over: SUCKER BROOK

100 WEST OF JCT RTE 45, CT

Built 1957 Load: 49.0 t ADT: 550

CRANE HOLLOW RD #3

Good

Over: WEEKEEPEEMEE RIVER

.5 MI N OF WOODBURY TL, CT

Built 1988 Load: 49.0 t ADT: 595

ROUTE 104

Good

Over: RIPPOWAM RIVER

20 FT S OF CLOVER HILL DR, CT

Built 1991 Load: 49.0 t ADT: 14,800

MALL LOADING DOCKS

Good

Over: UNNAMED STREAM

MASHANTUCKET PEQUOT RESER, CT

Built 2006 Load: 49.0 t ADT: 1,000

FLAT ROCK HILL RD

Good

Over: INTERSTATE-95

3.1 MI N OF US ROUTE 1, CT

Built 1958 Load: 49.1 t ADT: 143

INTERSTATE 95

Good

Over: LAFAYETTE STREET NO. 2

0.1 MI N OF ROUTE 8, CT

Built 1959 Load: 49.2 t ADT: 102,700

US ROUTE 1

Good

Over: NIANTIC RIVER

0.5 MI N OF I-95, CT

Built 2017 Load: 49.2 t ADT: 10,600

ROUTE 14A

Good

Over: CEDAR SWAMP BROOK

1.4 M EAST OF ROUTE 49 EB, CT

Built 2019 Load: 49.2 t ADT: 2,200

I-84 TR 831

Good

Over: INTERSTATE-84 EB

RTE 2/84 EB EXIT 70 GOV, CT

Built 1964 Load: 49.2 t ADT: 1,400

ROUTE 49

Good

Over: PENDLETON HILL BROOK

50 FT S OF ROUTE 216, CT

Built 2019 Load: 49.2 t ADT: 1,600

PLEASANT VALLEY RD

Good

Over: MENUNKETESUCK RIVER

0.5 MI W. OF ROUTE 145, CT

Built 2022 Load: 49.2 t ADT: 938

SO MAIN STREET #1

Good

Over: FAWN BROOK

.75 MI. S OF RT 2WB EX15, CT

Built 2020 Load: 49.2 t ADT: 600

CROSBY ST CONNECTO

Good

Over: STILL RIVER

350 EAST OF ROUTE 53, CT

Built 1963 Load: 49.2 t ADT: 3,195

WALKER BROOK RD#3

Good

Over: WALKER BROOK

0.8 MI SOUTH OF ROUTE 109, CT

Built 2001 Load: 49.4 t ADT: 184

PRIVATE ROAD

Good

Over: INTERSTATE-95

0.4 MI N OF ROUTE 100, CT

Built 2004 Load: 49.6 t ADT: 57

INTERSTATE-95

Good

Over: GRANITE ROAD

2.6 MI S OF ROUTE 77, CT

Built 1958 Load: 49.6 t ADT: 59,500

US ROUTE 44

Good

Over: SR 500

.7 MI EAST OF HARTFORD TL, CT

Built 1959 Load: 49.6 t ADT: 8,200

ROUTE 82

Good

Over: EAST BR EIGHT MILE RIVER

0.8 MI W OF ROUTE 11, CT

Built 2021 Load: 49.6 t ADT: 3,300

ROUTE 163

Good

Over: OAKDALE BROOK

3.3 MI N OF I-395, CT

Built 2014 Load: 49.6 t ADT: 1,700

SPRING ROAD

Good

Over: MUDDY RIVER

0.8 MI N OF ROUTE 17, CT

Built 1954 Load: 49.6 t ADT: 4,300

DUCK FARM ROAD

Good

Over: MILL RIVER

0.1 MI NO OF HUNTER ROAD, CT

Built 2023 Load: 49.6 t ADT: 2,270

US ROUTE 7 SB

Good

Over: PARK AVENUE

DUE EAST OF DANBURY MALL, CT

Built 1987 Load: 49.6 t ADT: 24,100

I-95 SB - ON RAMP

Good

Over: FULTON TERRACE

0.1 MI S OF US ROUTE 1, CT

Built 2006 Load: 49.6 t ADT: 11,900

INTERSTATE-95

Good

Over: FORD STREET

1.3 MI S OF ROUTE 121, CT

Built 1957 Load: 49.9 t ADT: 103,600

ROUTE 272

Good

Over: HALL MEADOW BROOK

2.1 MI NORTH OF GOSHEN TL, CT

Built 2010 Load: 49.9 t ADT: 1,000

ROUTE 302

Good

Over: BROOK

0.8 MILE EAST OF ROUTE 53, CT

Built 1995 Load: 49.9 t ADT: 10,200

ROUTE 25 SB

Good

Over: ROUTE 25 NB TR801

0.1 MI NORTH OF ROUTE 15, CT

Built 1980 Load: 49.9 t ADT: 14,700

EAST FLAT HILL RD

Good

Over: TRANSYLVANIA BROOK

.5 MI WEST OF ROUTE 172, CT

Built 2019 Load: 49.9 t ADT: 630

ROUTE 108

Good

Over: ROUTE 15 TR 810

2.7 MI N OF US ROUTE 1, CT

Built 1982 Load: 49.9 t ADT: 25,200

US ROUTE 7

Good

Over: MORRISEY BROOK

.79 MI S OF RT 55 JCT, CT

Built 1989 Load: 49.9 t ADT: 6,600

Showing 3,701-3,750 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.