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

SIMMONS ROAD

Fair

Over: INTERSTATE-84

0.3 MILE NORTH OF SR 502, CT

Built 1985 Load: 47.6 t ADT: 2,900

ROUTE 341

Fair

Over: HOUSATONIC RIVER

.2 MI WEST OF ROUTE 7, CT

Built 1991 Load: 47.6 t ADT: 2,000

INTERSTATE-291

Fair

Over: I-91 & BRIARWOOD DRIVE

0.2 MILES WEST OF RTE 159, CT

Built 1992 Load: 47.6 t ADT: 14,500

INTERSTATE-95

Fair

Over: ROUTE 77

0.5 MI N OF US ROUTE 1, CT

Built 1958 Load: 47.7 t ADT: 53,600

INTERSTATE-84 WB

Fair

Over: ABANDONED B&M RAILROAD

.2 MI W EXIT 32 ROUTE 10, CT

Built 1963 Load: 47.7 t ADT: 44,700

NORTH MAIN STREET

Fair

Over: NORWALK RIVER

250 FT W OF ROUTE 107, CT

Built 1953 Load: 47.7 t ADT: 103

ROUTE 15

Fair

Over: ROUTE 33

ROUTE 15 AT EXIT NO. 41, CT

Built 1937 Load: 47.7 t ADT: 63,420

SR 734 (DANIELS FA

Fair

Over: ROUTE 25

1.4 MI N OF ROUTE 15, CT

Built 1975 Load: 47.8 t ADT: 9,400

US ROUTE 7 NB

Fair

Over: PARK AVENUE

500 E OF DANBURY MALL, CT

Built 1987 Load: 47.8 t ADT: 23,100

ROUTE 67

Fair

Over: LITTLE RIVER

JUNCTION ROUTE 42 AND 67, CT

Built 1933 Load: 47.8 t ADT: 13,900

I-95 & I-95 RAMP 0

Fair

Over: GREENWICH AVE RIPPOWAM

INTERSTATE-95 EXIT NO. 7, CT

Built 1958 Load: 48.0 t ADT: 122,600

INTERSTATE-95

Fair

Over: HAMILTON AVENUE

0.2 MI N OF US ROUTE 1, CT

Built 1958 Load: 48.0 t ADT: 113,800

INTERSTATE-95

Fair

Over: NORTH PINE CREEK ROAD

BETWEEN EXITS 20 & 21, CT

Built 1958 Load: 48.0 t ADT: 117,200

ROUTE 2 EASTBOUND

Fair

Over: FITCHVLLE POND&BOZRAH ST

1.53MI WEST OF NORWICH TL, CT

Built 1961 Load: 48.0 t ADT: 14,200

ROUTE 2 WESTBOUND

Fair

Over: FITCHVLLE POND&BOZRAH ST

1.53MI WEST OF NORWICH TL, CT

Built 1961 Load: 48.0 t ADT: 12,900

ROUTE 8

Fair

Over: SR 727 SB PERSHING DRIVE

0.6 MI N OF ROUTE 34, CT

Built 1951 Load: 48.0 t ADT: 63,600

ROUTE 8

Fair

Over: FULLING MILL BROOK

0.9 MILE SO. WATERBURY TL, CT

Built 1960 Load: 48.0 t ADT: 51,400

ROUTE 8 SOUTHBOUND

Fair

Over: FENN ROAD

0.9 MI S OF LITCHFIELD TL, CT

Built 1960 Load: 48.0 t ADT: 12,600

ROUTE 9 NORTHBOUND

Fair

Over: ROUTE 155

2.49 MI NO OF HADDAM TL, CT

Built 1959 Load: 48.0 t ADT: 45,700

ROUTE 15

Fair

Over: CIRCULAR AVENUE

O/CIRCULAR AVENUE, CT

Built 1948 Load: 48.0 t ADT: 77,800

ROUTE 17

Fair

Over: MAIN STREET EXTENSION

0.15 MI OFF RT9SB EXIT 13, CT

Built 1955 Load: 48.0 t ADT: 10,200

ROUTE 19

Fair

Over: FURNACE BROOK

3.3 MI NORTH OF ROUTE 190, CT

Built 1957 Load: 48.0 t ADT: 2,000

INTERSTATE 84

Fair

Over: SR 847 (SOUTH MAIN ST.)

0.1 MILE EAST OF EXIT 21, CT

Built 1965 Load: 48.0 t ADT: 114,900

INTERSTATE-84 WB

Fair

Over: I-84 TR 818

1.73 MI WEST W.HTFD TL, CT

Built 1969 Load: 48.0 t ADT: 38,700

EAST AURORA STREET

Fair

Over: STEELE BROOK

150 FT NORTH OF ROUTE 73, CT

Built 1963 Load: 48.0 t ADT: 8,300

I-84 RAMP 266

Fair

Over: SKUNGAMAUG RIVER

50 WEST OF ROUTE 195, CT

Built 1978 Load: 48.0 t ADT: 7,400

SOUTH STREET

Fair

Over: AMTRAK RAILROAD

.1 MI W OF CHRISTIAN LANE, CT

Built 1979 Load: 48.0 t ADT: 13,900

US ROUTE 7

Fair

Over: MNRR & NORWALK RIVER

0.9 MI S OF ROUTE 15, CT

Built 1992 Load: 48.0 t ADT: 22,500

ROUTE 154

Fair

Over: SOUTH COVE

4.08 MI NORTH OF ROUTE 1, CT

Built 1994 Load: 48.0 t ADT: 1,700

ROUTE 41

Fair

Over: SAGES RAVINE BROOK

0.02MI S OF MA STATELINE, CT

Built 1929 Load: 48.1 t ADT: 1,200

HIGHLAND AVENUE

Fair

Over: ALEWIFE COVE

0.2 MI WEST OF OCEAN AVE., CT

Built 1975 Load: 48.1 t ADT: 1,003

CAMELS BACK ROAD

Fair

Over: AMTRAK RAILROAD

.10 MI E OF KENSINGTON RD, CT

Built 1891 Load: 48.1 t ADT: 3,300

MEETING HSE HLL RD

Fair

Over: SUSQUETONSCUT BROOK

Rt 87to Champ.to Mtg Hse, CT

Built 1940 Load: 48.1 t ADT: 214

BLAIN ROAD

Fair

Over: FRENCH RIVER

200 FEET WEST OF ROUTE 12, CT

Built 1940 Load: 48.1 t ADT: 1,230

NORTH ANGUILLA ROA

Fair

Over: INTERSTATE-95 NB

1.0 MI N OF ROUTE 234, CT

Built 1964 Load: 48.2 t ADT: 696

ROUTE 74

Fair

Over: HOCKANUM RIVER

.5 MILE EAST OF ROUTE 31, CT

Built 1938 Load: 48.2 t ADT: 2,200

U.S. ROUTE 202

Fair

Over: NEPAUG RIVER

2.3 MILES EAST OF RTE 219, CT

Built 1923 Load: 48.2 t ADT: 9,800

INTERSTATE-95

Fair

Over: NEW ENGLAND AVENUE

BETWEEN EXIT 23 & 24, CT

Built 1958 Load: 48.3 t ADT: 121,100

INTERSTATE-95

Fair

Over: SUNSET AVENUE

0.2 MI S OF US ROUTE 1, CT

Built 1958 Load: 48.3 t ADT: 121,100

TAYLOR HILL ROAD

Fair

Over: INTERSTATE-395

.2 MI NORTH OF ROUTE 138, CT

Built 1958 Load: 48.3 t ADT: 630

ROUTE 15

Fair

Over: TACONIC ROAD

6.3 MI E OF STATE LINE, CT

Built 1936 Load: 48.3 t ADT: 65,120

ROUTE 150

Fair

Over: QUINNIPIAC RIVER

AT JCT RTE 68 & RTE 150, CT

Built 1951 Load: 48.3 t ADT: 13,800

ROUTE 118

Fair

Over: ROUTE 8

AT EXIT 42, CT

Built 1966 Load: 48.3 t ADT: 9,000

SAYLE AVENUE

Fair

Over: INTERSTATE-395 NB

.11 SOUTH OF THOMPSON TL., CT

Built 1965 Load: 48.3 t ADT: 410

JAMES STREET

Fair

Over: ROUTE 8

1.1 MI N OF I-95, CT

Built 1969 Load: 48.3 t ADT: 1,900

CHESHIRE STREET

Fair

Over: QUINNIPIAC RIVER

0.3 MI N OF ROUTE 70, CT

Built 1957 Load: 48.3 t ADT: 3,962

SIMPAUG TURNPIKE

Fair

Over: SAUGATUCK RIVER

EAST OF RAILROAD STATION, CT

Built 1956 Load: 48.3 t ADT: 895

I-84 WB & RAMPS

Fair

Over: HOCKANUM RIVER

.1 MILE E OF S.WINDSOR TL, CT

Built 1982 Load: 48.3 t ADT: 52,950

BLACK ROCK TPKE

Fair

Over: METRO NORTH RAILROAD

0.2 MI S OF US ROUTE 1, CT

Built 1900 Load: 48.3 t ADT: 10,800

INTERSTATE-95 SB

Fair

Over: INTERSTATE-395 NB

1.3MI N OF ROUTE 161, CT

Built 1958 Load: 48.5 t ADT: 22,600

Showing 2,101-2,150 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.