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

SR 712 BRIDGE ST.

Fair

Over: HOUSATONIC RR & LOCAL RD

50 EAST FROM ROUTE 110, CT

Built 1973 Load: 36.0 t ADT: 10,200

I-91 NB & RAMP 136

Fair

Over: EAST STREET

1.2 MI N OF I-95, CT

Built 1965 Load: 36.0 t ADT: 78,800

ROUTE 8 NORTHBOUND

Fair

Over: METRO-NORTH RAILROAD

.7 MI NO NUGTCK WTBRY TL, CT

Built 1966 Load: 36.0 t ADT: 26,900

SR 503 WESTBOUND

Fair

Over: AMTRAK & CAPITOL AVENUE

0.50MI E FROM EXIT 46 I84, CT

Built 1969 Load: 36.0 t ADT: 9,100

US ROUTE 7 SB

Fair

Over: CONNECTICUT AVENUE

0.6 MI N OF I-95, CT

Built 1970 Load: 36.0 t ADT: 27,500

INTERSTATE-84

Fair

Over: ROUTE 32 RIVER ROAD

INTERSTATE 84 EXIT 70, CT

Built 1940 Load: 36.0 t ADT: 52,100

EAST HADDAM - COLC

Fair

Over: MOODUS RESERVOIR

2.9 MI E OF ROUTE 151, CT

Built 2000 Load: 36.0 t ADT: 2,300

ROUTE 85

Fair

Over: RAYMOND BROOK

300 FT SOUTH OF ROUTE 207, CT

Built 1987 Load: 36.0 t ADT: 4,700

INTERSTATE-95

Fair

Over: ROUTE 113 (MAIN ST.)

0.6 MI N OF ROUTE 130, CT

Built 1958 Load: 36.1 t ADT: 102,500

ROUTE 47

Fair

Over: NONEWAUG RIVER

0.6 MILE NORTH OF ROUTE 6, CT

Built 1956 Load: 36.1 t ADT: 3,900

ORCHARD STREET

Fair

Over: INTERSTATE 91

0.4 MILE SOUTH OF EXIT 24, CT

Built 1964 Load: 36.2 t ADT: 3,470

INTERSTATE-384 WB

Fair

Over: FINLEY STREET

0.25 MI WEST OF BOLTON TL, CT

Built 1968 Load: 36.2 t ADT: 15,000

MONTAUK AVENUE

Fair

Over: AMTRAK RAILROAD

1.0 MI S OF ROUTE 213, CT

Built 1980 Load: 36.2 t ADT: 3,700

MUNGERTOWN ROAD

Fair

Over: INTERSTATE-95

0.5 MI N OF US ROUTE 1, CT

Built 1957 Load: 36.3 t ADT: 4,045

ROUTE 2 & RT 17 SB

Fair

Over: HOUSE STREET

ROUTE 2 AT EXIT NO 7, CT

Built 1964 Load: 36.3 t ADT: 74,400

ROUTE 39

Fair

Over: WIMISINK BROOK

ROUTE 55 JUNCTION, CT

Built 1934 Load: 36.3 t ADT: 1,100

ROUTE 53

Fair

Over: W BRANCH SAUGATUCK RIVER

1 MILE NORTH OF RTE. 33, CT

Built 1957 Load: 36.3 t ADT: 4,000

SR 571

Fair

Over: WILLOW BROOK

.4 MILE WEST OF JCT RTE 9, CT

Built 1962 Load: 36.3 t ADT: 8,300

INTERSTATE 84 EB

Fair

Over: HANOVER ROAD

1.6 MI WEST OF SR 816, CT

Built 1960 Load: 36.3 t ADT: 38,000

JONES HOLLOW ROAD

Fair

Over: ROUTE 2

0.26 MI WEST OF OP RT 66, CT

Built 1964 Load: 36.3 t ADT: 1,769

INTERSTATE-95 SB

Fair

Over: ROUTE 2

.8 MI SOUTH OF ROUTE 49, CT

Built 1964 Load: 36.3 t ADT: 13,200

I-91 TR 816

Fair

Over: ROUTE 66 WB

.25 MILES EAST OF EXIT 10, CT

Built 1965 Load: 36.3 t ADT: 13,400

ROUTE 2 WESTBOUND

Fair

Over: CAMP MOWEEN ROAD

1.2 MILES WEST OF EXIT 22, CT

Built 1970 Load: 36.3 t ADT: 12,300

NORTH WALL STREET

Fair

Over: INTERSTATE-691

0.4 MILE WEST OF ROUTE 15, CT

Built 1965 Load: 36.3 t ADT: 2,600

RT9 NB& I-91 TR821

Fair

Over: I-91 NB & I-91 TR823

.23 MI SO OF JCT I-91 SB, CT

Built 1965 Load: 36.3 t ADT: 23,000

ROUTE 72 NB

Fair

Over: HARTFORD SQUARE

.85 MI SO.PLAINVILLE T.L., CT

Built 1970 Load: 36.3 t ADT: 32,000

HAMILTON STREET

Fair

Over: SOUTH BRANCH PARK RIVER

400 EAST OF I-84, CT

Built 1959 Load: 36.3 t ADT: 7,600

MECHANICSVILLE RD

Fair

Over: EAST BRANCH SALMON BROOK

900 EAST OF ROUTE 189, CT

Built 1969 Load: 36.3 t ADT: 540

ENGLAND ROAD

Fair

Over: NATCHAUG RIVER

0.2 MI EAST OF RTE. 198, CT

Built 1900 Load: 36.3 t ADT: 398

ROUTE 12

Fair

Over: QUINEBAUG RIVER

.1 MI NORTH OF ROUTE 138, CT

Built 1930 Load: 36.3 t ADT: 8,200

INTERSTATE-95

Fair

Over: LIEUTENANT RIVER

0.4 MI N OF US ROUTE 1, CT

Built 1948 Load: 36.3 t ADT: 59,000

INDIAN NECK AVENUE

Fair

Over: BRANFORD RIVER

.5 MI NORTH OF ROUTE 146, CT

Built 1991 Load: 36.3 t ADT: 3,860

SURF AVENUE

Fair

Over: BROOK

330 FEET NORTH OF I-95, CT

Built 1955 Load: 36.3 t ADT: 11,220

HELLSTROM ROAD

Fair

Over: FARM RIVER

750 FT E. OF ROUTE 100, CT

Built 1980 Load: 36.4 t ADT: 986

ROUTE 191

Fair

Over: SCANTIC RIVER

0.1 MI SOUTH OF ROUTE 190, CT

Built 1949 Load: 36.5 t ADT: 6,400

ROUTE 14

Fair

Over: KITT BROOK

1 MI WEST OF ROUTE 169, CT

Built 1962 Load: 36.6 t ADT: 6,300

WEST ROCKS ROAD

Fair

Over: ROUTE 15

RTE 15 UNDER WEST ROCK RD, CT

Built 1938 Load: 36.6 t ADT: 5,000

INTERSTATE 84 EB

Fair

Over: PETER ROAD

.9 MILE EAST OF ROUTE 172, CT

Built 1963 Load: 36.6 t ADT: 36,400

ROUTE 191

Fair

Over: BROAD BROOK

1 MI SOUTH OF ROUTE 140, CT

Built 1922 Load: 36.6 t ADT: 1,000

ROUTE 106

Fair

Over: NOROTON RIVER

1.3 MILE N. OF US ROUTE 1, CT

Built 1968 Load: 36.6 t ADT: 8,300

INTERSTATE-91 NB

Fair

Over: US 5 & AMTRAK & FERRY ST

1.1 MI S OF ROUTE 17, CT

Built 1964 Load: 36.6 t ADT: 67,300

I-91 RAMP 132

Fair

Over: I-91 RAMP 135 & AMTRAK

RMP TRUMBULL ST TO I91 SB, CT

Built 1965 Load: 36.6 t ADT: 7,800

I-84 TR 812

Fair

Over: RIVERSIDE ST NAUGATUCK R

EXIT 19 84 WB TO 8 SB, CT

Built 1966 Load: 36.6 t ADT: 11,700

I-84 RAMP 201

Fair

Over: I-84 RAMP 198 & BANK ST

EXIT 21 84 WB OFF RAMP, CT

Built 1965 Load: 36.6 t ADT: 4,000

ROUTE 8 SOUTHBOUND

Fair

Over: NAUGATUCK RIVER & R.R.

.1 MI NORTH OF EXIT 38, CT

Built 1966 Load: 36.6 t ADT: 15,400

INTERSTATE-84 EB

Fair

Over: WOODRUFF ROAD

0.2 MI W OF W.HARTFORD TL, CT

Built 1969 Load: 36.6 t ADT: 51,100

INTERSTATE-84 WB

Fair

Over: WOODRUFF ROAD

0.2 MI W OF W.HARTFORD TL, CT

Built 1969 Load: 36.6 t ADT: 49,000

ROUTE 9 SOUTHBOUND

Fair

Over: RTE 9 RAMP 043 & SR 901

AT END OF RT 99, CT

Built 1967 Load: 36.6 t ADT: 33,400

ROUTE 8 SOUTHBOUND

Fair

Over: NORTH WASHINGTON AVENUE

1.7 MI N OF I-95, CT

Built 1970 Load: 36.6 t ADT: 46,000

US ROUTE 7 NB

Fair

Over: US ROUTE 1 (BELDEN AVE)

1.2 MI N OF I-95, CT

Built 1970 Load: 36.6 t ADT: 24,300

Showing 1,251-1,300 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.