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 9 SOUTHBOUND

Fair

Over: ROUTE 372

AT EXIT 21, CT

Built 1988 Load: 47.0 t ADT: 32,300

ROUTE 218

Fair

Over: INTERSTATE 91 NORTHBOUND

3.7 MILES NORTH OF I-84, CT

Built 1990 Load: 47.0 t ADT: 17,400

UNIVERSAL DR NORTH

Fair

Over: CSX RAILROAD

0.2 MI. N Montowese Ave., CT

Built 1983 Load: 47.0 t ADT: 671

GRAND AVENUE

Fair

Over: MILL RIVER WEST

1 TENTH EAST OF EAST ST, CT

Built 1982 Load: 47.1 t ADT: 14,400

US ROUTE 6 WB

Fair

Over: INTERSTATE-84

75 EAST OF DANBURY TL, CT

Built 1962 Load: 47.2 t ADT: 18,400

ROUTE 15

Fair

Over: PRVT ACCESS RD AND BROOK

2.3 MI N OF NY STATE LINE, CT

Built 1935 Load: 47.2 t ADT: 57,020

ROUTE 8 RAMP 079

Fair

Over: SR 846 NORTHBOUND

RTE 8 SOUTHBOUND EXIT 34, CT

Built 1965 Load: 47.2 t ADT: 3,100

ROUTE 8 NORTHBOUND

Fair

Over: WINTHROP STREET

0.6 MILE NORTH OF EXIT 44, CT

Built 1964 Load: 47.2 t ADT: 9,400

INTERSTATE-91 NB

Fair

Over: MUDDY RIVER

.8 MI SO OF ROUTE 40, CT

Built 1965 Load: 47.2 t ADT: 55,750

NORTH STREET

Fair

Over: FIVE MILE RIVER

0.5 MI WEST OF ROUTE 12, CT

Built 1973 Load: 47.2 t ADT: 3,978

SOUTH ROAD

Fair

Over: LEADMINE BROOK

WEST OF ROUTE 222 JCT, CT

Built 1999 Load: 47.2 t ADT: 390

US ROUTE 7 NB

Fair

Over: WOOSTER HEIGHTS ROAD

500 E OF DANBURY AIRPORT, CT

Built 1987 Load: 47.2 t ADT: 12,850

RESERVOIR LANE

Fair

Over: RIPPOWAM RIVER

AT STAMFORD TOWN LINE, CT

Built 1990 Load: 47.2 t ADT: 410

INTERSTATE-395

Fair

Over: KATE DOWNING ROAD

3 MILES NORTH OF ROUTE201, CT

Built 1958 Load: 47.3 t ADT: 30,000

MOOSUP POND ROAD

Fair

Over: INTERSTATE-395

1.3 M NORTH OF ROUTE 14, CT

Built 1958 Load: 47.3 t ADT: 1,768

ROUTE 2 EASTBOUND

Fair

Over: ROUTE 163

1.88 MI WEST OF NORWICH, CT

Built 1961 Load: 47.3 t ADT: 13,400

US ROUTE 7

Fair

Over: HOUSATONIC RAILROAD

500 N OF SALISBURY TL, CT

Built 1931 Load: 47.3 t ADT: 3,400

ROUTE 8

Fair

Over: ROUTE 8 RAMP 069

EXIT 28 ROUTE 8 SB, CT

Built 1960 Load: 47.3 t ADT: 49,900

US ROUTE 202

Fair

Over: GULF STREAM

1.52 MI. NO.LITCHFIELD TL, CT

Built 1957 Load: 47.3 t ADT: 4,900

SR 510 DEPOT HILL

Fair

Over: INTERSTATE-91

.8 MILE N OF E WINDSOR TL, CT

Built 1959 Load: 47.3 t ADT: 4,200

ROUTE 20

Fair

Over: HIGLEY BROOK

.2 MI EAST OF ROUTE 219, CT

Built 1934 Load: 47.3 t ADT: 8,100

SR 500 TR 805

Fair

Over: PITKIN STREET

.1 MILE S OF GOVERNOR ST, CT

Built 1964 Load: 47.3 t ADT: 3,900

ROUTE 2 WESTBOUND

Fair

Over: PITKIN STREET

0.6 MILE E OF HARTFORD TL, CT

Built 1964 Load: 47.3 t ADT: 27,500

SR 636 NB

Fair

Over: ROUTE 32 & I-95SB TR 817

0.8 MI N OF I-95, CT

Built 1973 Load: 47.3 t ADT: 2,800

ROUTE 72 EB

Fair

Over: ROUTE 372

0.5 MI W OF I-84 INTRCHNG, CT

Built 1975 Load: 47.3 t ADT: 26,800

DR FOOTE ROAD

Fair

Over: ROUTE 2 WESTBOUND

0.5 MI E OF ROUTE 16, CT

Built 1966 Load: 47.3 t ADT: 2,273

ROUTE 9 NORTHBOUND

Fair

Over: P&W RAILROAD

NEXT TO SEWAGE TREAT PLNT, CT

Built 1967 Load: 47.3 t ADT: 32,300

RIVER ROAD

Fair

Over: SAUGATUCK RIVER

1600 EAST OF RTE 57 JCT, CT

Built 1957 Load: 47.3 t ADT: 2,272

ELI BUNKER ROAD

Fair

Over: E. BRANCH SHEPAUG RIVER

1.6 MILES W OF MILTON RD, CT

Built 1965 Load: 47.3 t ADT: 68

US ROUTE 7 RAMP 47

Fair

Over: SUGAR HOLLOW ROAD

MALL EXIT RTE 7 SOUTHBND, CT

Built 1987 Load: 47.3 t ADT: 10,300

OLD MILL ROAD

Fair

Over: HUNTS BROOK

0.2 MI E OF BLOOINGDALE, CT

Built 1940 Load: 47.3 t ADT: 717

HUMPHREY ROAD NO 2

Fair

Over: CHERRY BROOK

0.2 MILE WEST OF RTE. 179, CT

Built 1988 Load: 47.3 t ADT: 134

INTERSTATE-84 EB

Fair

Over: ROUTE 15

0.5 MILE EAST OF ROUTE 5, CT

Built 1987 Load: 47.3 t ADT: 56,200

PEARL STREET

Fair

Over: BLADENS RIVER

0.1 MI SOUTH OF ROUTE 67, CT

Built 1924 Load: 47.4 t ADT: 2,333

I-84 TR 802

Fair

Over: INTERSTATE 84 EB

EXIT 3 ROUTES 7 & 84, CT

Built 1962 Load: 47.5 t ADT: 6,800

INTERSTATE-95

Fair

Over: ATLANTIC STREET

I-95 NB EXIT NO. 8, CT

Built 1958 Load: 47.6 t ADT: 94,100

INTERSTATE-95

Fair

Over: WESTWAY ROAD

0.1 MILE SOUTH OF EXIT 19, CT

Built 1958 Load: 47.6 t ADT: 110,400

ROUTE 8 SOUTHBOUND

Fair

Over: CAMPVILLE ROAD

EXIT 41 OFF ROUTE 8, CT

Built 1960 Load: 47.6 t ADT: 12,200

PONUS RIDGE ROAD

Fair

Over: ROUTE 15

1.0 MI S OF ROUTE 106, CT

Built 1937 Load: 47.6 t ADT: 2,500

INTERSTATE-84 WB

Fair

Over: WEST CENTER STREET EXT.

0.8 MI E OF I-84 EXIT 30, CT

Built 1963 Load: 47.6 t ADT: 49,000

INTERSTATE-84 EB

Fair

Over: WEST CENTER STREET EXT.

0.8 MI E OF I-84 EXIT 30, CT

Built 1963 Load: 47.6 t ADT: 50,300

ROUTE 172

Fair

Over: TRANSYLVANIA BROOK

1 MI SOUTH OF JCT RTE 67, CT

Built 1935 Load: 47.6 t ADT: 3,900

INTERSTATE-395 SB

Fair

Over: BALLARD ROAD

1 MI NORTH OF EXIT 97, CT

Built 1965 Load: 47.6 t ADT: 11,700

INTERSTATE-91 SB

Fair

Over: SACKETT POINT ROAD

0.7 MI S OF ROUTE 40, CT

Built 1965 Load: 47.6 t ADT: 54,700

E. WASHINGTON AVE

Fair

Over: PEQUONNOCK RIVER

0.2 MI E OF ROUTE 8, CT

Built 1916 Load: 47.6 t ADT: 3,310

BRIDGE STREET

Fair

Over: OXOBOXO BROOK

75 FT W OF ROUTE 163, CT

Built 1920 Load: 47.6 t ADT: 1,056

CENTER STREET

Fair

Over: QUINNIPIAC RIVER

160 FT E OF WATER ST, CT

Built 1983 Load: 47.6 t ADT: 3,060

SR 602

Fair

Over: FALLS RIVER

1.1 MI N OF ROUTE 154, CT

Built 1983 Load: 47.6 t ADT: 4,100

US ROUTE 1

Fair

Over: LATIMERS BROOK

0.3 MI N OF I-95, CT

Built 1985 Load: 47.6 t ADT: 10,800

US ROUTE 44

Fair

Over: LITTLE RIVER

0.4 MI WEST OF KENNEDY DR, CT

Built 1987 Load: 47.6 t ADT: 10,600

Showing 2,051-2,100 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.