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 66

Fair

Over: BLACKLEDGE RIVER

0.9 MI W HEBRON TL, CT

Built 1927 Load: 21.7 t ADT: 8,800

US ROUTE 7 & RTE 4

Fair

Over: HOUSATONIC RV RR LOCL RD

CORNWALL-SHARON TOWN-LINE, CT

Built 1930 Load: 21.7 t ADT: 3,800

ROUTE 372

Fair

Over: SPRUCE BROOK

.5 MI EAST OF ROUTE 15, CT

Built 1942 Load: 21.7 t ADT: 13,000

INTERSTATE-691

Fair

Over: BUNKER AVENUE

.58 MI WEST OF ROUTE 5, CT

Built 1971 Load: 21.7 t ADT: 79,300

INTERSTATE-91

Fair

Over: I-91 RAMPS & AMTRAK

0.8 MI N OF I-95, CT

Built 1965 Load: 21.7 t ADT: 140,300

COUNTY ROAD

Fair

Over: STILL RIVER

0.1 MI NORTH OF ROUTE 198, CT

Built 1936 Load: 21.7 t ADT: 432

US RTE 44 & RTE 10

Fair

Over: FARMINGTON RIVER

0.3 MILE WEST OF ROUTE 10, CT

Built 1996 Load: 21.7 t ADT: 29,800

PORTLAND AVENUE

Fair

Over: NORWALK RIVER

BRANCHVILLE STATION LOT, CT

Built 1928 Load: 21.8 t ADT: 3,790

INTERSTATE-91 SB

Fair

Over: STATE ST MILL RIV RAMPS

1.4 MI N OF I-95, CT

Built 1965 Load: 21.9 t ADT: 73,400

BEACH PARK ROAD

Fair

Over: HAMMOCK RIVER

0.5 MI S. OF US ROUTE 1, CT

Built 1947 Load: 21.9 t ADT: 3,039

INTERSTATE-395

Fair

Over: HUNTS BROOK

1.6 MI N OF ROUTE 85, CT

Built 1957 Load: 22.0 t ADT: 30,700

INTERSTATE-395

Fair

Over: ROUTE 163

I-395 EXIT NO. 79, CT

Built 1958 Load: 22.0 t ADT: 49,500

GARELLA ROAD

Fair

Over: INTERSTATE 84

.4 MI EAST OF BETHEL TL, CT

Built 1962 Load: 22.0 t ADT: 1,784

ROUTE 128

Fair

Over: HOUSATONIC RIVER

.05MI E OF US ROUTE 7 JCT, CT

Built 1841 Load: 22.0 t ADT: 1,500

NEW PARK AVENUE

Fair

Over: TROUT BROOK

0.2 MILE NORTH OF SR 529, CT

Built 1966 Load: 22.0 t ADT: 17,907

HOLLOW TREE ROAD

Fair

Over: METRO-NORTH RAILROAD

W. of Noroton Heights Sta, CT

Built 1900 Load: 22.0 t ADT: 2,700

ROUTE 72

Fair

Over: CRONK RD PAN AM PEQ. R.

APPR .5 MI WEST OF RTE 10, CT

Built 1980 Load: 22.0 t ADT: 54,800

UNION STREET

Fair

Over: DEEP RIVER

350 FT N OF ROUTE 80, CT

Built 1930 Load: 22.0 t ADT: 1,600

ROUTE 142

Fair

Over: FARM RIVER

.75 MI EAST OF ROUTE 704, CT

Built 1942 Load: 22.0 t ADT: 4,500

WEST MOUNTAIN ROAD

Fair

Over: SPRAIN BROOK

OFF NETTLETOWN HOLLOW RD, CT

Built 1994 Load: 22.0 t ADT: 20

ROUTE 207

Fair

Over: MINT BROOK

.23MI E OF JCT RTE 85, CT

Built 1945 Load: 22.4 t ADT: 2,400

ROUTE 40 NB

Fair

Over: ROUTE 22 & MILL RIVER

0.3 MILE S. OF ROUTE 10, CT

Built 1976 Load: 22.4 t ADT: 11,300

RIVER ROAD

Fair

Over: HAMMONASSET RIVER

0.1 MI S OF NOD ROAD, CT

Built 1935 Load: 22.4 t ADT: 2,833

NORTHWEST DRIVE

Fair

Over: PEQUABUCK RIVER

0.5 MI WEST OF ROUTE 10, CT

Built 1983 Load: 22.4 t ADT: 7,100

WAWECUS HILL ROAD

Fair

Over: INTERSTATE-395

.6 MI NORTH OF ROUTE 82, CT

Built 1958 Load: 22.7 t ADT: 750

ROUTE 82

Fair

Over: ROUTE 9

EXIT 7 RTE 9 TO RTE 82, CT

Built 1971 Load: 22.7 t ADT: 3,800

US ROUTE 6 WB

Fair

Over: NEW ENGLAND CENTRAL RR

1 MI EAST OF COVENTRY TL, CT

Built 1971 Load: 22.7 t ADT: 8,950

INTERSTATE-84 EB

Fair

Over: AMTRAK;LOCAL RDS;PARKING

EASTBOUND, CT

Built 1965 Load: 22.7 t ADT: 74,400

INTERSTATE-84 EB

Fair

Over: HAMILTON STREET

0.5 MILE EAST OF EXIT 45, CT

Built 1967 Load: 22.7 t ADT: 68,900

ROUTE 8 NB & TR 80

Fair

Over: I-95 S FRONTAGE RD S.AVE

I-95 EXIT 27A INTCHGNO 14, CT

Built 1999 Load: 22.7 t ADT: 41,200

ROUTE 8 NORTHBOUND

Fair

Over: PEQUONNOCK RV & TRAIL

4.1 MI N OF I-95, CT

Built 1971 Load: 22.7 t ADT: 28,000

NORTH ROAD

Fair

Over: FIVE MILE RIVER

100 EAST OF STONE ROAD, CT

Built 1991 Load: 22.7 t ADT: 417

OLD TURNPIKE ROAD

Fair

Over: FENTON BROOK

0.2 MILE WEST OF U.S. 44, CT

Built 1970 Load: 22.7 t ADT: 64

INTERSTATE-95

Fair

Over: SR 796 (MILFORD PARKWAY)

I-95 EXIT NO 38, CT

Built 1957 Load: 23.0 t ADT: 106,100

ROUTE 31

Fair

Over: SKUNGAMAUG RIVER

1 MILE SOUTH OF ROUTE 44, CT

Built 1923 Load: 23.0 t ADT: 6,000

ROUTE 185

Fair

Over: FARMINGTON RIVER

0.18 MILES EAST OF RTE 10, CT

Built 1954 Load: 23.0 t ADT: 16,100

SR 736 - BUCKINGHA

Fair

Over: GULF POND

0.4 MI E OF ROUTE 162, CT

Built 1951 Load: 23.0 t ADT: 5,300

RI 78 WEST BY-PASS

Fair

Over: PAWCATUCK RIVER

0.41 miles from Rte 2, CT

Built 1974 Load: 23.0 t ADT: 13,100

BRICKYARD ROAD

Fair

Over: MENUNKETESUCK RIVER

400 N OF FAIRY DELL ROAD, CT

Built 1934 Load: 23.0 t ADT: 919

ROUTE 156

Fair

Over: NIANTIC RIVER & LOCAL RD

.80 MI E OF JCT ROUTE 161, CT

Built 1991 Load: 23.0 t ADT: 6,700

HORTON HILL RD.

Fair

Over: MARKS BROOK

.13 mi. north of Route 63, CT

Built 1940 Load: 23.0 t ADT: 2,700

I-95 NB Ramp 092

Fair

Over: Route 130 & Kossuth St

I-95NB EXIT 28 (Off Ramp), CT

Built 2000 Load: 23.3 t ADT: 5,600

INTERSTATE-95

Fair

Over: SURF AVENUE

0.2 MI N OF ROUTE 113, CT

Built 1959 Load: 23.3 t ADT: 93,800

ROUTE 8 RAMP 26

Fair

Over: HULL AVE & RIVERDALE AVE

RT 8 EXT 14 (JCT RTE 110), CT

Built 1990 Load: 23.3 t ADT: 8,100

VAIL ROAD

Fair

Over: INTERSTATE 84

BETWEEN EXITS 8 & 9, CT

Built 1962 Load: 23.3 t ADT: 2,557

INTERSTATE-291

Fair

Over: CONNECTICUT RIV & PRV RD

1.03 MI E OF I-91 JNCT, CT

Built 1958 Load: 23.3 t ADT: 66,100

ROUTE 219

Fair

Over: FARMINGTON RIVER

0.1 MILE NORTH OF RTE. 44, CT

Built 1959 Load: 23.3 t ADT: 4,200

LAKE STREET

Fair

Over: ROUTE 72

200FT WEST COLUMBUS BLV, CT

Built 1974 Load: 23.3 t ADT: 3,900

SR 649

Fair

Over: BROOK

1.5 MI W OF US ROUTE 1, CT

Built 1966 Load: 23.3 t ADT: 2,600

ROUTE 200

Fair

Over: INTERSTATE-395

3 MI N OF US ROUTE 44, CT

Built 1967 Load: 23.3 t ADT: 4,500

Showing 101-150 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.