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

Interstate 95

Fair

Over: ROUTE 9 NB & I-95 TR 816

1.4 MI N OF ROUTE 154, CT

Built 1992 Load: 35.3 t ADT: 55,700

ROUTE 20 EASTBOUND

Fair

Over: OLD COUNTY ROAD

2.5MI E OF WINDSOR LKS TL, CT

Built 1961 Load: 35.4 t ADT: 25,650

ROUTE 20 WESTBOUND

Fair

Over: OLD COUNTY ROAD

2.5MI E OF WINDSOR LKS TL, CT

Built 1961 Load: 35.4 t ADT: 25,650

ROUTE 63

Fair

Over: BANTAM RIVER

1.25 MI N OF MORRIS T.L., CT

Built 1942 Load: 35.4 t ADT: 3,400

ROUTE 229

Fair

Over: INTERSTATE-84

AT INTERSTATE-84 EXIT 31, CT

Built 1963 Load: 35.4 t ADT: 17,400

ROUTE 123

Fair

Over: FIVE MILE RIVER

100 NO OF FOREST ST JCT, CT

Built 1962 Load: 35.5 t ADT: 8,400

US ROUTE 6 & 44 EB

Fair

Over: INTERSTATE 384

0.5 MI WEST JCT ROUTE 44, CT

Built 1968 Load: 35.5 t ADT: 4,700

INTERSTATE 84 WB

Fair

Over: ALPINE DRIVE

.5 MI SO OF SOUTHBURY TL, CT

Built 1978 Load: 35.5 t ADT: 37,800

INTERSTATE-95

Fair

Over: WEST AVENUE

160 FT N OF US ROUTE 7, CT

Built 1956 Load: 35.6 t ADT: 108,000

INTERSTATE-95

Fair

Over: METRO NORTH & CITY STS

BETWEEN EXITS 26 & 27, CT

Built 1999 Load: 35.6 t ADT: 133,800

MARGARET HENRY RD

Fair

Over: SR 695

3 MILE EAST OF I-395, CT

Built 1958 Load: 35.6 t ADT: 1,873

ROUTE 15

Fair

Over: SR 707(WHITNEY AVE.)

1.3 MI EAST OF ROUTE 10, CT

Built 1946 Load: 35.6 t ADT: 67,800

NORTH AVENUE #1

Fair

Over: ROUTE 15

1.1 MI W OF TOWN LINE, CT

Built 1939 Load: 35.6 t ADT: 9,660

ROUTE 17 NB

Fair

Over: EAST MAIN STREET

100 NORTH OF MAPLE STREE, CT

Built 1954 Load: 35.6 t ADT: 8,000

ROUTE 37

Fair

Over: QUAKER BROOK

.5MI S OF HARDSCRABBLE RD, CT

Built 1957 Load: 35.6 t ADT: 2,900

ROUTE 63

Fair

Over: WEST BR. BANTAM RIVER

3MILES NORTH OF ROUTE 202, CT

Built 1961 Load: 35.6 t ADT: 2,700

ROUTE 67

Fair

Over: LITTLE RIVER

1.4 MI WEST OF ROUTE 42, CT

Built 1933 Load: 35.6 t ADT: 9,100

ROUTE 71

Fair

Over: INTERSTATE-691

.5 MI WEST OF LEWIS AVE, CT

Built 1971 Load: 35.6 t ADT: 10,800

US ROUTE 6 WB

Fair

Over: ROUTE 32

.5 MI EAST OF COVENTRY TL, CT

Built 1971 Load: 35.6 t ADT: 7,850

ROUTE 128

Fair

Over: MILL BROOK

.20 MI E OF US 7, CT

Built 1924 Load: 35.6 t ADT: 1,100

INTERSTATE-91 NB

Fair

Over: SR 715 (MONTOWESE AVE.)

EXIT 9 ON I-91, CT

Built 1965 Load: 35.6 t ADT: 53,400

INTERSTATE-91 NB

Fair

Over: EVERGREEN ROAD

.69 MI SO OF RTE 9 O-PASS, CT

Built 1965 Load: 35.6 t ADT: 57,700

ROUTE 8

Fair

Over: SR 847 - SOUTH MAIN ST.

0.1 MILE NORTH OF EXIT 29, CT

Built 1965 Load: 35.6 t ADT: 50,700

ROUTE 8 RAMP 131

Fair

Over: WEST MAIN STREET #1

NB ON-RAMP FROM RIVERSIDE, CT

Built 1965 Load: 35.6 t ADT: 1,800

ROUTE 8 SB

Fair

Over: RIVERSIDE STREET SB

Route 8 SB at Exit 33, CT

Built 1965 Load: 35.6 t ADT: 25,500

ROUTE 9 SOUTHBOUND

Fair

Over: FLORAL PARK ROAD

0.7 MI N OF I-95, CT

Built 1966 Load: 35.6 t ADT: 15,100

ROUTE 72 SB

Fair

Over: HARTFORD SQUARE

0.8 MI S OF PLAINVILLE TL, CT

Built 1970 Load: 35.6 t ADT: 34,200

ROUTE 9 NORTHBOUND

Fair

Over: SOUTH ROAD

SOUTH OF INTERSTATE-84, CT

Built 1969 Load: 35.6 t ADT: 26,200

INTERSTATE-384 EB

Fair

Over: FINLEY STREET

0.25 MI WEST OF BOLTON TL, CT

Built 1968 Load: 35.6 t ADT: 15,300

HOP RIVER ROAD

Fair

Over: HOP RIVER

.3 MI NORTH OF RTE 6, CT

Built 1955 Load: 35.6 t ADT: 268

WIG HILL ROAD

Fair

Over: PATTACONK BROOK

90 FT N OF ROUTE 148, CT

Built 1950 Load: 35.6 t ADT: 150

ROUTE 15 NB

Fair

Over: ROUTE 8 & RT 8 RAMP 143

ROUTE 15 EXIT NO. 52, CT

Built 1983 Load: 35.6 t ADT: 28,200

US ROUTE 44 EB

Fair

Over: I-91 NB I-91 COL SW RDWY

ACCESS 84EB FROM MORGANST, CT

Built 1960 Load: 35.6 t ADT: 10,400

ROUTE 20 WESTBOUND

Fair

Over: INTERSTATE-91

I-91 NB EXIT 40, CT

Built 1992 Load: 35.6 t ADT: 14,800

INTERSTATE-291 WB

Fair

Over: ROUTE 30

0.5 MILE NORTH OF US RT 5, CT

Built 1993 Load: 35.6 t ADT: 25,000

SUMOLA ROAD

Fair

Over: QUANDUCK BROOK

75 south of River Road, CT

Built 2018 Load: 35.6 t ADT: 100

SSR 450

Fair

Over: INTERSTATE-95

1.2 MI N OF US ROUTE 1, CT

Built 1957 Load: 35.8 t ADT: 12,200

ROUTE 63

Fair

Over: LONG MEADOW BROOK

0.5 MILE SOUTH OF ROUTE 8, CT

Built 1961 Load: 35.8 t ADT: 10,800

ROUTE 2A

Fair

Over: ROUTE 32

ROUTE 2A EXIT NO. 1, CT

Built 1967 Load: 35.8 t ADT: 20,800

ROUTE 8 SOUTHBOUND

Fair

Over: NAUGATUCK RIVER & RR

1.5 MILE SOUTH OF RTE 118, CT

Built 1960 Load: 35.9 t ADT: 12,900

INTERSTATE 84 EB

Fair

Over: ROUTE 63

.5 MI S OF JCT 63 & 64, CT

Built 1964 Load: 35.9 t ADT: 31,100

SSR 450

Fair

Over: AMTRAK & SCOTLAND ROAD

0.1 MI S OF I-95, CT

Built 1957 Load: 35.9 t ADT: 8,500

CHESTNUT HILL ROAD

Fair

Over: FIVE MILE RIVER

350 FROM JCT WARE ROAD, CT

Built 1937 Load: 35.9 t ADT: 999

N PORCHUCK ROAD

Fair

Over: E BRANCH OF BYRAM RIVER

.7M NW OF EX 28 ROUTE 15, CT

Built 2006 Load: 35.9 t ADT: 228

SAW MILL HILL ROAD

Fair

Over: SR 695

3.5 M EAST INTERSTATE-395, CT

Built 1958 Load: 36.0 t ADT: 326

ROUTE 66

Fair

Over: WILLIMANTIC RIVER

COLUMBIA WINDHAM TOWN LNE, CT

Built 1937 Load: 36.0 t ADT: 7,300

CHRISTIAN LANE

Fair

Over: ROUTE 9

ROUTE 9 EXIT NO. 23, CT

Built 1962 Load: 36.0 t ADT: 12,100

INTERSTATE-291 EB

Fair

Over: AMTRAK & BIKE PATH

.5 MI E OF ROUTE 159 JCT, CT

Built 1958 Load: 36.0 t ADT: 33,050

I-84 TR 821

Fair

Over: SR 501 NB & TROUT BROOK

EB ON-RAMP FROM PARK ROAD, CT

Built 1965 Load: 36.0 t ADT: 6,400

INTERSTATE-95 NB

Fair

Over: RIVER RD & MYSTIC RIVER

0.4 MI S OF ROUTE 27, CT

Built 1964 Load: 36.0 t ADT: 26,200

Showing 1,201-1,250 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.