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

PULASKI STREET

Fair

Over: WEST BRANCH RIPPOWAM RV

300 W OF WASHINGTON ST, CT

Built 1988 Load: 42.4 t ADT: 9,230

SSR 437

Fair

Over: NE CENTRAL RR & DRIVEWAY

0.3 MI E OF ROUTE 32, CT

Built 1990 Load: 42.4 t ADT: 350

SR 693 NB

Fair

Over: ROUTE 32

1.0 MI S OF I-395, CT

Built 1958 Load: 42.5 t ADT: 9,300

HIGH STREET

Fair

Over: P & W RAILROAD

0.3 MI N OF ROUTE 66, CT

Built 1982 Load: 42.5 t ADT: 3,166

US ROUTE 1

Fair

Over: MENUNKETESUCK RIVER

1.8 MI S OF ROUTE 153, CT

Built 2003 Load: 42.6 t ADT: 6,700

ROUTE 67

Fair

Over: LITTLE RIVER

1.1 MI E OF ROUTE 42, CT

Built 1933 Load: 42.6 t ADT: 13,700

MAIN STREET

Fair

Over: QUANDUCK BROOK

500FT NORTH OF RIVER ROAD, CT

Built 1939 Load: 42.6 t ADT: 607

ROUTE 89

Fair

Over: MOUNT HOPE RIVER

0.2 MI NORTH OF ROUTE 44, CT

Built 1930 Load: 42.6 t ADT: 2,100

INTERSTATE 95

Fair

Over: INDIAN RIVER

0.5 MI S OF US ROUTE 1, CT

Built 1958 Load: 42.8 t ADT: 107,800

INTERSTATE-95

Fair

Over: SR 745 (FIRST AVENUE)

0.9 MI S OF ROUTE 10, CT

Built 1956 Load: 42.8 t ADT: 111,100

INTERSTATE-95

Fair

Over: INDIAN LAKE

0.2 MI N OF ROUTE 81, CT

Built 1957 Load: 42.8 t ADT: 60,600

US ROUTE 1

Fair

Over: NORWALK RIVER

0.2 MI N OF US ROUTE 7, CT

Built 1958 Load: 42.8 t ADT: 12,700

ROUTE 2 WESTBOUND

Fair

Over: BLACKLEDGE RIVER

0.7 MI W OF COLCHESTER TL, CT

Built 1959 Load: 42.8 t ADT: 17,850

INTERSTATE-91

Fair

Over: US ROUTE 5 AND ROUTE 15

.34MI N OF HRFD-WETH TL, CT

Built 1964 Load: 42.8 t ADT: 116,100

INTERSTATE-84 EB

Fair

Over: SR 535 (RIDGEWOOD ROAD)

0.2 MI E OF FARMINGTON TL, CT

Built 1965 Load: 42.8 t ADT: 65,800

INTERSTATE-95 NB

Fair

Over: ROUTE 27

0.4 MI N OF MYSTIC RIVER, CT

Built 1964 Load: 42.8 t ADT: 20,400

INTERSTATE-691 WB

Fair

Over: NOTCH ROAD

0.85 MI EAST OF RT 322, CT

Built 1971 Load: 42.8 t ADT: 35,000

ROUTE 9 SOUTHBOUND

Fair

Over: CANDLEWOOD HILL RD & BRK

0.5 MI W. OF ROUTE 154, CT

Built 1965 Load: 42.8 t ADT: 17,300

ROUTE 40 NB

Fair

Over: AMTRAK RAILROAD

0.1 MI S OF US ROUTE 5, CT

Built 1971 Load: 42.8 t ADT: 22,000

HILL TOP ROAD

Fair

Over: SOUTH BRIDE BROOK ROAD

W. OF ARCADIA ROAD, CT

Built 1962 Load: 42.8 t ADT: 108

US RTE 7 SB TR 811

Fair

Over: PERRY AVENUE

ROUTE 15 NB EXIT NO. 39A, CT

Built 1990 Load: 42.8 t ADT: 5,400

ROUTE 67

Fair

Over: LITTLE RIVER

3.3 MILES WEST OF ROUTE 8, CT

Built 1933 Load: 42.9 t ADT: 14,800

INTERSTATE-84 EB

Fair

Over: SR 805 EAGLE RD & HRR

.42 MI WEST OF US ROUTE 6, CT

Built 1962 Load: 42.9 t ADT: 49,500

DANS HIGHWAY

Fair

Over: MILL RIVER

0.5 MI WEST OF WEST ROAD, CT

Built 1957 Load: 42.9 t ADT: 664

STUDIO ROAD

Fair

Over: RIPPOWAM RIVER

700 FROM WIRE MILL ROAD, CT

Built 2005 Load: 42.9 t ADT: 62

HORSEPOND ROAD

Fair

Over: AMTRAK RAILROAD

100 FT S OF NEW ROAD, CT

Built 1998 Load: 43.0 t ADT: 3,100

MILL HILL ROAD

Fair

Over: INTERSTATE 95

BETWEEN EXIT NOS. 19 & 20, CT

Built 1958 Load: 43.1 t ADT: 4,700

HIGH STREET

Fair

Over: I-95 & I-95 SB TR 807

0.1 MI S OF SR 796, CT

Built 1957 Load: 43.1 t ADT: 10,375

HOSLEY AVENUE

Fair

Over: INTERSTATE-95

0.5 MI N OF US ROUTE 1, CT

Built 1958 Load: 43.1 t ADT: 457

MAPLEWOOD CEM BR

Fair

Over: INTERSTATE-395

.3 MI SOUTH OF ROUTE 82, CT

Built 1958 Load: 43.1 t ADT: 12

I-84 EB & US ROUTE

Fair

Over: US ROUTES 6 AND 202

I-84 WB EXIT 4, CT

Built 1962 Load: 43.1 t ADT: 49,900

ROUTE 8

Fair

Over: ROUTE 63

1.2 MI NO BEACON FALLS TL, CT

Built 1960 Load: 43.1 t ADT: 42,700

ROUTE 22

Fair

Over: FARM RIVER

0.7 MI E OF ROUTE 17, CT

Built 1935 Load: 43.1 t ADT: 12,200

I-91 RAMP 139

Fair

Over: NO NOTABLE FEATURE

I91SB ON RAMP (WILLOW ST), CT

Built 1965 Load: 43.1 t ADT: 6,000

ROUTE 8 SOUTHBOUND

Fair

Over: NICHOLS DRIVE

1.1 MILE SOUTH OF EXIT 30, CT

Built 1965 Load: 43.1 t ADT: 27,600

US ROUTE 7 SB

Fair

Over: US ROUTE 1 (BELDEN AVE)

1.2 MILES NORTH OF I-95, CT

Built 1970 Load: 43.1 t ADT: 24,300

SOUTH LEONARD ST

Fair

Over: NAUGATUCK RIVER

0.1 MI WEST OF SO MAIN ST, CT

Built 1956 Load: 43.1 t ADT: 950

INTERSTATE 691 EAS

Fair

Over: SOUTH END ROAD

1 MI EAST OF RTE 10, CT

Built 1984 Load: 43.1 t ADT: 2,800

ROUTE 162

Fair

Over: OYSTER RIVER

370 FT W OF SR 705, CT

Built 1987 Load: 43.1 t ADT: 8,700

ROUTE 9 SOUTHBOUND

Fair

Over: ROUTE 15

6.3 MI SOUTH OF NEWINGTON, CT

Built 1989 Load: 43.1 t ADT: 29,400

LAPHAM ROAD

Fair

Over: ROUTE 15

0.6 MI S OF ROUTE 124, CT

Built 1937 Load: 43.1 t ADT: 1,781

WALNUT STREET

Fair

Over: AMTRAK & CENTRAL NE RR

500 EAST OF EDWARD ST, CT

Built 1907 Load: 43.3 t ADT: 9,900

INTERSTATE-95

Fair

Over: CANAL STREET

BETWEEN EXITS 7&8, CT

Built 1958 Load: 43.4 t ADT: 94,100

INTERSTATE-95

Fair

Over: UNQUOWA ROAD

0.5 MI S OF ROUTE 135, CT

Built 1958 Load: 43.4 t ADT: 120,600

INTERSTATE-395

Fair

Over: MAPLE AVENUE

0.3 MI S OF ROUTE 163, CT

Built 1958 Load: 43.4 t ADT: 49,500

US ROUTE 1

Fair

Over: SASCO BROOK

WESTPORT FAIRFIELD TL, CT

Built 1927 Load: 43.4 t ADT: 18,300

US ROUTE 7

Fair

Over: BULLS CANAL

0.25 MI S OF BULLS BR RD, CT

Built 1930 Load: 43.4 t ADT: 2,300

SR 724 EASTBOUND

Fair

Over: BREWERY STREET

250FT SOUTH OF US 1, CT

Built 1960 Load: 43.4 t ADT: 47,375

INTERSTATE-291 EB

Fair

Over: MAIN STREET

0.3 MILE WEST OF EXIT 4, CT

Built 1992 Load: 43.4 t ADT: 31,300

INTERSTATE-95 SB

Fair

Over: ROUTE 49

I-95 EXIT NO. 92, CT

Built 1964 Load: 43.4 t ADT: 13,200

Showing 1,751-1,800 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.