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 32

Fair

Over: NEW ENGLAND CENTRAL RR

2.5 MILES NORTH OF I-84, CT

Built 1954 Load: 33.0 t ADT: 7,100

ROUTE 116

Fair

Over: TITICUS RIVER

0.4 MI NORTH OF ROUTE 35, CT

Built 1957 Load: 33.0 t ADT: 6,100

INTERSTATE 84 EB

Fair

Over: BIOSKI ROAD

1.6 MI W OF ROUTE 63, CT

Built 1964 Load: 33.0 t ADT: 36,900

INTERSTATE-84 WB

Fair

Over: DNBY TERM/HOUSATONIC RR

I-84 WB EXIT 4, CT

Built 1962 Load: 33.0 t ADT: 40,400

ROUTE 334

Fair

Over: NAUGATUCK RIVER & MN RR

50 FT WEST OF ROUTE 115, CT

Built 1958 Load: 33.0 t ADT: 9,300

ROUTE 2 EASTBOUND

Fair

Over: QUARRY ROAD

.49 MI(W)OF JCT ROUTE 83, CT

Built 1964 Load: 33.0 t ADT: 22,700

ROUTE 83

Fair

Over: ROUTE 2

OVER ROUTE 2, CT

Built 1964 Load: 33.0 t ADT: 4,900

INTERSTATE-95 NB

Fair

Over: ANGUILLA BROOK

2.6 MI N OF ROUTE 234, CT

Built 1964 Load: 33.0 t ADT: 18,200

INTERSTATE-691 EB

Fair

Over: LEWIS AVE

0.35 MI EAST OF RT 71, CT

Built 1971 Load: 33.0 t ADT: 35,550

US ROUTE 6 WB

Fair

Over: WILLIMANTIC RIVER

1.5 MILE EAST OF ROUTE 66, CT

Built 1971 Load: 33.0 t ADT: 8,950

ROUTE 275

Fair

Over: WILLIMANTIC RIVER

1.7 MILES EAST OF RTE 31, CT

Built 1900 Load: 33.0 t ADT: 1,800

WALNUT STREET

Fair

Over: INTERSTATE-395

.3 MI S OF ROUTE US 44, CT

Built 1965 Load: 33.0 t ADT: 2,703

LOWELL DAVIS ROAD

Fair

Over: INTERSTATE-395

3.0 MI SOUTH MASS SL., CT

Built 1967 Load: 33.0 t ADT: 212

MARSH HILL ROAD

Fair

Over: METRO-NORTH RAILROAD

0.4 MI S OF I-95, CT

Built 1893 Load: 33.0 t ADT: 18,900

POND HILL ROAD

Fair

Over: WHARTON BROOK

0.1 MI E OF S. ELM ST, CT

Built 1900 Load: 33.0 t ADT: 4,525

ROUTE 174 E. MAIN

Fair

Over: ROUTE 9 NORTHBOUND

.2 MI EAST OF ROUTE 71, CT

Built 1978 Load: 33.0 t ADT: 11,200

STEELE ROAD

Fair

Over: NEPAUG RIVER

0.2 MILE NORTH OF RTE 202, CT

Built 1955 Load: 33.0 t ADT: 272

TOLLAND TURNPIKE

Fair

Over: INTERSTATE-84 & RAMPS

1.2 MI E OF JNCT RT44&I84, CT

Built 1984 Load: 33.0 t ADT: 20,285

ROUTE 67

Fair

Over: LITTLE RIVER

1.8 MILE WEST OF RTE. 188, CT

Built 1933 Load: 33.1 t ADT: 9,100

SR 598 WESTBOUND

Fair

Over: CT SOUTHERN RAILROAD

EXIT 29A OFF I-91 NB, CT

Built 1964 Load: 33.1 t ADT: 7,900

STATION ROAD

Fair

Over: MERRICK BROOK

500 FROM JCT WALDO ROAD, CT

Built 1935 Load: 33.2 t ADT: 590

ROUTE 177

Fair

Over: SCOTT SWAMP BROOK

185 FEET NORTH OF ROUTE 6, CT

Built 1989 Load: 33.2 t ADT: 16,400

INTERSTATE 95 SOUT

Fair

Over: US1 QUINNIPIAC RV P&W RR

OVER QUINNIPIAC RIVER, CT

Built 2015 Load: 33.3 t ADT: 56,600

INTERSTATE 91 SOUT

Fair

Over: FARMINGTON RIVER

.6 MILE NORTH OF ROUTE 75, CT

Built 1958 Load: 33.3 t ADT: 64,100

WILLOW CREEK AVE

Fair

Over: WILLOW CREEK

0.1 MILE FROM ROUTE 75, CT

Built 1997 Load: 33.3 t ADT: 113

MOXLEY ROAD

Fair

Over: INTERSTATE-395

0.6 MI S OF ROUTE 163, CT

Built 1958 Load: 33.4 t ADT: 616

INTERSTATE-395

Fair

Over: ROUTE 12

2.4 MI NORTH OF ROUTE 169, CT

Built 1958 Load: 33.4 t ADT: 37,400

ROUTE 2

Fair

Over: SHUNOCK RIVER

0.1 E OF ROUTE 201, CT

Built 1959 Load: 33.4 t ADT: 7,700

ROUTE 67

Fair

Over: LITTLE RIVER

0.4 MI W OF ROUTE 8, CT

Built 1950 Load: 33.4 t ADT: 19,400

SR 796 (MILFORD PA

Fair

Over: EAST RUTLAND ROAD

0.7 MILE NORTH OF I-95, CT

Built 1941 Load: 33.4 t ADT: 59,100

INTERSTATE-691 EB

Fair

Over: INTERSTATE-91

03 WEST OF ACCESS I-91NB, CT

Built 1965 Load: 33.4 t ADT: 23,300

ROUTE 11 NB

Fair

Over: EIGHT MILE RIVER

0.5 MI N OF ROUTE 82, CT

Built 1971 Load: 33.4 t ADT: 4,700

U.S. ROUTE 6 WB

Fair

Over: NATCHAUG RIVER

0.1 MI EAST OF WINDHAM TL, CT

Built 1972 Load: 33.4 t ADT: 10,450

I-95 NB TR 819

Fair

Over: SR 641

0.2 MI N OF ROUTE 32, CT

Built 1975 Load: 33.4 t ADT: 7,500

INTERSTATE-91

Fair

Over: AMTRAK RAILROAD

0.2 MI S OF ROUTE 17, CT

Built 1965 Load: 33.4 t ADT: 137,300

INTERSTATE-91 NB

Fair

Over: SACKETT POINT ROAD

0.7 MI S OF ROUTE 40, CT

Built 1965 Load: 33.4 t ADT: 113,300

ROUTE 8 NORTHBOUND

Fair

Over: NAUGATUCK RIVER & ACCESS

.66 MI NORTH OF US 6, CT

Built 1966 Load: 33.4 t ADT: 12,100

US ROUTE 5

Fair

Over: ROUTE 190

2.7 MI N OF I-91, CT

Built 1966 Load: 33.4 t ADT: 11,000

INTERSTATE-84 WB

Fair

Over: NEW PARK AVENUE & AMTRAK

.2 MI E OF W. HARTFORD TL, CT

Built 1967 Load: 33.4 t ADT: 57,900

SR 503 EASTBOUND

Fair

Over: I-84&AMTRAK&LOCAL RDS

.26 MILES S OF JCT I-84WB, CT

Built 1969 Load: 33.4 t ADT: 10,000

ROUTE 8 SOUTHBOUND

Fair

Over: PINEWOODS ROAD

AT EXIT 46, CT

Built 1967 Load: 33.4 t ADT: 6,100

I-84 RAMPS & LOCA

Fair

Over: NO NOTABLE FEATURE

.1 MI WEST OF EXIT 23 EB, CT

Built 1980 Load: 33.4 t ADT: 99,800

ROUTE 106

Fair

Over: PRIVATE ROAD

0.8 MI N OF US ROUTE 1, CT

Built 1900 Load: 33.4 t ADT: 14,100

SCOTT HILL ROAD

Fair

Over: YANTIC RIVER

NORTH OF EX 22 OFF RTE 2, CT

Built 1970 Load: 33.4 t ADT: 1,248

SEGAR STREET

Fair

Over: STILL RIVER

0.2 MI N OF PARK AVENE, CT

Built 1987 Load: 33.4 t ADT: 10,550

E FRANKLIN STREET

Fair

Over: PADANARAM BROOK

595 FT E OF ROUTE 53, CT

Built 1930 Load: 33.4 t ADT: 4,375

INTERSTATE-95

Fair

Over: ROUTE 156

1.0 MI N OF ROUTE 9, CT

Built 1992 Load: 33.4 t ADT: 59,000

I-91 SB TR 823

Fair

Over: I-91 NORTHBOUND

1.7 N OF ROUTE 372, CT

Built 1965 Load: 33.5 t ADT: 14,800

ROUTE 121

Fair

Over: ROUTE 15

1.3 MI S OF ROUTE 34, CT

Built 1941 Load: 33.6 t ADT: 8,700

ROUTE 80

Fair

Over: CHATFIELD HOLLOW BROOK

1.3 MI W OF ROUTE 81, CT

Built 1935 Load: 33.6 t ADT: 5,000

Showing 1,001-1,050 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.