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

PROSPECT STREET

Fair

Over: SR 598

0.16 MI E OF PULASKI CIR., CT

Built 1947 Load: 27.2 t ADT: 2,600

U.S. ROUTE 44

Fair

Over: RATTLESNAKE BROOK

0.8 MILE WEST OF SR 565, CT

Built 1939 Load: 27.2 t ADT: 20,000

US ROUTE 6 EB

Fair

Over: HOP RIVER

1400 EAST OF RTE 66, CT

Built 1971 Load: 27.2 t ADT: 8,950

U.S. ROUTE 6 EB

Fair

Over: MANSFIELD CITY ROAD

1.29 MI E OF WINDHAM T L, CT

Built 1972 Load: 27.2 t ADT: 9,000

ROUTE 130

Fair

Over: YELLOW MILL POND

NEAR EXIT 29 I-95, CT

Built 1926 Load: 27.2 t ADT: 13,600

GRAND AVENUE

Fair

Over: QUINNIPIAC RIVER

100 E OF FRONT STREET, CT

Built 1900 Load: 27.2 t ADT: 2,400

EIGHTH STREET

Fair

Over: SHETUCKET RIVER

.2 MI EAST OF ROUTE 12, CT

Built 1937 Load: 27.2 t ADT: 4,600

HUNTINGTON STREET

Fair

Over: FARMILL RIVER

0.5 MI S OF RPUTE 108, CT

Built 1934 Load: 27.2 t ADT: 14,974

ROUTE 72

Fair

Over: PEQUABUCK RIVER

0.1 MILE E OF EXPWY END, CT

Built 1980 Load: 27.2 t ADT: 28,600

MULBERRY POINT RD

Fair

Over: AMTRAK RAILROAD

100 FT S OF ROUTE 146, CT

Built 1988 Load: 27.2 t ADT: 2,930

SILVERMINE ROAD

Fair

Over: HOUSATONIC RR

0.5 mi east of US Rt 202, CT

Built 1910 Load: 27.2 t ADT: 4,780

ROUTE 12

Fair

Over: POQUETANUCK COVE

0.9 MI S OF ROUTE 2A, CT

Built 1990 Load: 27.2 t ADT: 7,900

INTERSTATE 95

Fair

Over: CRESCENT ST & MNRR

0.2 MI S OF NORWALK RV, CT

Built 1958 Load: 27.5 t ADT: 112,200

US ROUTE 6 WB

Fair

Over: US ROUTE 44 EASTBOUND

1/4 M E OF INTERSTATE 384, CT

Built 1952 Load: 27.5 t ADT: 9,100

US ROUTE 7

Fair

Over: NORWALK RIVER

0.4 MI N OF ROUTE 107, CT

Built 1957 Load: 27.5 t ADT: 18,800

WOODIN STREET

Fair

Over: ROUTE 15

2.3 MI S OF ROUTE 10, CT

Built 1949 Load: 27.5 t ADT: 6,000

ROUTE 85

Fair

Over: JUDD BROOK

1.6 MI N OF ROUTE 16, CT

Built 1925 Load: 27.5 t ADT: 5,400

ROUTE 195

Fair

Over: US ROUTE 6

0.2 MI NO. OF WINDHAM TL, CT

Built 1973 Load: 27.5 t ADT: 15,400

ROUTE 32 NB

Fair

Over: I-95 SB TR 818

0.2 MI N OF I-95, CT

Built 1973 Load: 27.5 t ADT: 2,900

COLUMBUS AVENUE

Fair

Over: AMTRAK RAILROAD

0.2 MI S OF ROUTE 156, CT

Built 1967 Load: 27.5 t ADT: 2,740

OLD KINGS HWY NORT

Fair

Over: GOODWIVES RIVER

0.1 MI NO OF SEDGWICK AVE, CT

Built 1956 Load: 27.5 t ADT: 5,855

FIRETOWN ROAD

Fair

Over: BISSELL BROOK

OFF ROUTE 309, CT

Built 1949 Load: 27.5 t ADT: 1,800

I-84 TR 834

Fair

Over: I-84 I-84 RAMPS 295-296

I-84 WB TO I-691 EB, CT

Built 1987 Load: 27.5 t ADT: 9,600

INTERSTATE-91 SB

Fair

Over: CONNECTICUT SOUTHERN RR

0.5 MILE NORTH OF I-84, CT

Built 1989 Load: 27.5 t ADT: 76,500

SR 641

Fair

Over: ROUTE 32

0.3 MI S OF I-95, CT

Built 1973 Load: 27.8 t ADT: 7,200

SILVER STREET

Fair

Over: ROUTE 9

1.5 M SOUTH OF ROUTE 66, CT

Built 1958 Load: 27.9 t ADT: 7,969

ROUTE 59

Fair

Over: ROUTE 15

AT EXIT 46, CT

Built 1936 Load: 27.9 t ADT: 11,000

ROUTE 20 WESTBOUND

Fair

Over: HAMILTON ROAD

1 MI E OF WINDSOR LKS TL, CT

Built 1961 Load: 27.9 t ADT: 20,650

ROUTE 97

Fair

Over: SHETUCKET RIVER

AT INTERSECTION OF RT 207, CT

Built 1941 Load: 27.9 t ADT: 2,400

ROUTE 185

Fair

Over: TUMBLE BROOK

0.1 MILE WEST OF RTE. 218, CT

Built 1949 Load: 27.9 t ADT: 9,300

ASYLUM STREET

Fair

Over: I-84 WESTBOUND

BR AT INT OF I-84 EB, CT

Built 1966 Load: 27.9 t ADT: 12,200

INTERSTATE-95 NB

Fair

Over: ROUTE 12

0.3 M N OF THAMES RIVER, CT

Built 1964 Load: 27.9 t ADT: 25,600

INTERSTATE-691

Fair

Over: COLONY STREET

0.6 MI WEST OF ROUTE 5, CT

Built 1971 Load: 27.9 t ADT: 72,400

SEVENTH STREET

Fair

Over: ROUTE 8

1.5 MI N NAUGTK/WATBRY TL, CT

Built 1965 Load: 27.9 t ADT: 1,700

INTERSTATE-84 WB

Fair

Over: SR 536 (WOODFORD AVENUE)

1.13 MI W NEW BRITAIN TL, CT

Built 1969 Load: 27.9 t ADT: 38,700

US ROUTE 1

Fair

Over: ROUTE 349 AND RAMPS

0.3 MI S OF ROUTE 12, CT

Built 1966 Load: 27.9 t ADT: 19,000

LOWE STREET

Fair

Over: METRO NORTH RAILROAD

BTWN ELY AVE & ML KING DR, CT

Built 1938 Load: 27.9 t ADT: 1,507

COTTAGE STREET

Fair

Over: ROARING BROOK

30 FEET WEST OF ROUTE 167, CT

Built 1966 Load: 27.9 t ADT: 400

RIVER ROAD #2

Fair

Over: MILL RIVER

0.4 MI E OF ROUTE 10, CT

Built 1939 Load: 27.9 t ADT: 717

INTERSTATE-691 EB

Fair

Over: TEN MILE RIVER

7.5 MI W OF INTERSTATE-91, CT

Built 1986 Load: 27.9 t ADT: 28,500

DICKERMAN ROAD

Fair

Over: INTERSTATE-691

0.5 MI WEST OF ROUTE 10, CT

Built 1986 Load: 27.9 t ADT: 648

WESTVILLE AVE EXT

Fair

Over: INTERSTATE 84

0.7 MI E OF US ROUTE 7, CT

Built 1962 Load: 28.0 t ADT: 4,422

ROUTE 188

Fair

Over: LONG SWAMP BROOK

0.4 MI S OF I-84, CT

Built 1944 Load: 28.0 t ADT: 3,200

ROUTE 15

Fair

Over: ROUTE 10

ROUTE 15 EXIT NO. 60, CT

Built 1948 Load: 28.1 t ADT: 67,800

ROUTE 32

Fair

Over: OBWEBETUCK BROOK

1 MI NORTH OF RTE 203, CT

Built 1940 Load: 28.1 t ADT: 8,900

ROUTE 184

Fair

Over: GREAT BROOK

1.5 MI EAST JCT ROUTE 121, CT

Built 1945 Load: 28.1 t ADT: 12,900

INTERSTATE-95

Fair

Over: KINGS HWY-GOODWIVES RV

0.4 MI S OF ROUTE 136, CT

Built 1952 Load: 28.2 t ADT: 129,600

FOREST ROAD

Fair

Over: INTERSTATE-95

.2 MI S OF US ROUTE 1, CT

Built 1958 Load: 28.2 t ADT: 3,000

CHAPMAN MILLPOND R

Fair

Over: INTERSTATE-95

0.3 MI N OF ROUTE 145, CT

Built 1957 Load: 28.2 t ADT: 269

ROUTE 2

Fair

Over: ROUTE 642

.3 MI EAST OF ROUTE 32, CT

Built 1959 Load: 28.2 t ADT: 29,900

Showing 301-350 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.