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

I-91 NB RAMP 138

Fair

Over: MILL RIVER

I-91 NB EXIT NO. 5, CT

Built 1965 Load: 45.4 t ADT: 11,300

INTERSTATE-91 SB

Fair

Over: AMTRAK RAILROAD

.14 MILES S OF ROUTE 22, CT

Built 1965 Load: 45.4 t ADT: 45,400

I-84 RAMP 115

Fair

Over: AMTRAK AND PARKING LOT

.33 MI N OF JCT SR 503 WB, CT

Built 1965 Load: 45.4 t ADT: 9,500

I-95 SB TR 821

Fair

Over: I-95 NB & I-95 SB TR 822

0.6 MI N OF ROUTE 12, CT

Built 1966 Load: 45.4 t ADT: 3,700

INTERSTATE-84 WB

Fair

Over: PARKING LOT

.27 MI WEST SIGOURNEY ST, CT

Built 1969 Load: 45.4 t ADT: 64,800

ROUTE 8 NORTHBOUND

Fair

Over: ROUTE 130 EAST BOUND

0.6 MI N OF I-95, CT

Built 1968 Load: 45.4 t ADT: 48,300

ROUTE 69

Fair

Over: STREAM

0.6 MI. SO. OF WOLCOTT TL, CT

Built 1969 Load: 45.4 t ADT: 23,400

NEW STATE ROAD

Fair

Over: HOCKANUM RIVER

0.5 MI NORTH OF RTE 6/44, CT

Built 2004 Load: 45.4 t ADT: 5,300

CAMP STREET #1

Fair

Over: HARBOR BROOK

0.3 MI W OF US ROUTE 5, CT

Built 1895 Load: 45.4 t ADT: 2,870

ROUTE 218

Fair

Over: WASH BROOK

100 FT EAST OF ROUTE 189, CT

Built 1982 Load: 45.4 t ADT: 25,800

US ROUTE 1

Fair

Over: MILL RIVER

NEAR SASCO HILL ROAD, CT

Built 1990 Load: 45.4 t ADT: 13,900

LOPUS ROAD

Fair

Over: METRO-NORTH RAILROAD

.4 MILES S OF MAIN STREET, CT

Built 1991 Load: 45.4 t ADT: 500

ROUTE 68

Fair

Over: FULLING MILL BROOK

1.3 MI E OF ROUTE 63, CT

Built 1933 Load: 45.5 t ADT: 12,300

OLD HARTFORD ROAD

Fair

Over: JEREMY RIVER

0.5 MI EAST OF ROUTE 149, CT

Built 1998 Load: 45.5 t ADT: 1,600

INTERSTATE-95

Fair

Over: BRENTWOOD AVENUE

0.3 MI N OF US ROUTE 1, CT

Built 1958 Load: 45.7 t ADT: 120,200

ROUTE 2 WESTBOUND

Fair

Over: ROUTE 163

1.88 MI WEST OF NORWIC TL, CT

Built 1961 Load: 45.7 t ADT: 11,900

ROUTE 8 NORTHBOUND

Fair

Over: CAMPVILLE ROAD

ROUTE 8 EXT 41, CT

Built 1960 Load: 45.7 t ADT: 12,200

INTERSTATE 84 EAST

Fair

Over: HRRC & BOULEVARD ROAD

1.5 MI WEST OF SR 816, CT

Built 1962 Load: 45.7 t ADT: 38,000

US ROUTE 5

Fair

Over: I-91 AMTRAK RAMP B

0.36N OF RTE 22 BISHOP ST, CT

Built 1973 Load: 45.7 t ADT: 17,700

I-91 SB & RAMP C

Fair

Over: WILLOW STREET

330 FT W OF US RT 5, CT

Built 1965 Load: 45.7 t ADT: 67,400

INTERSTATE 84 WB

Fair

Over: BANK STREET & RAMP 199

.2 MILES WEST OF SR 847, CT

Built 1965 Load: 45.7 t ADT: 57,800

ROUTE 8 SOUTHBOUND

Fair

Over: NAUGATUCK RAILROAD CO.

0.3 MI N OF ROUTE 222, CT

Built 1966 Load: 45.7 t ADT: 10,700

US ROUTE 7 SB

Fair

Over: STILL RIV & GRAYS BR RD

0.6 MI NO OF FEDERAL RD, CT

Built 1976 Load: 45.7 t ADT: 14,700

FARRELL ROAD

Fair

Over: HOUSATONIC RR

N OF OLD HAWLEYVILLE RD, CT

Built 1912 Load: 45.7 t ADT: 333

SR 533 (TUNNEL RD)

Fair

Over: INTERSTATE-84

0.3 MILE SOUTH OF RTE 30, CT

Built 1978 Load: 45.7 t ADT: 5,100

WEST STREET

Fair

Over: MIDDLE RIVER

0.2 MILE SOUTH OF RTE 190, CT

Built 1956 Load: 45.7 t ADT: 1,600

KENOSIA AVENUE

Fair

Over: MILL PLAIN SWAMP

0.4 MI S OF US ROUTE 6, CT

Built 1930 Load: 45.7 t ADT: 4,900

INTERSTATE 691 EAS

Fair

Over: PRATT STREET

0.3 MI W OF ROUTE 322, CT

Built 1984 Load: 45.7 t ADT: 30,700

SR 527

Fair

Over: HOCKANUM RIVER

0.1 MILE SOUTH OF RTE 74, CT

Built 1990 Load: 45.7 t ADT: 7,200

CHAPEL STREET

Fair

Over: PROV & WORC RAILROAD

100FT EAST OF EAST STREET, CT

Built 1912 Load: 45.8 t ADT: 8,452

PROSPECT STREET

Fair

Over: HOP BROOK

100 FT S OF HARTFORD ROAD, CT

Built 1997 Load: 45.8 t ADT: 1,210

INTERSTATE 95

Fair

Over: US ROUTE 1 SOUTHBOUND

INTERSTATE-95 EXIT NO. 24, CT

Built 1958 Load: 46.0 t ADT: 107,700

INTERSTATE-95

Fair

Over: IVY STREET

1.7 MI S. OF US ROUTE 1, CT

Built 1958 Load: 46.0 t ADT: 70,500

WILDWOOD AVE. #1

Fair

Over: INTERSTATE-95

1.9 MI S OF ROUTE 79, CT

Built 1957 Load: 46.0 t ADT: 2,900

INTERSTATE-395

Fair

Over: ROUTE 82

1.2 MI N OF FITCH HILL RD, CT

Built 1958 Load: 46.0 t ADT: 46,800

PRESTON ALLEN ROAD

Fair

Over: INTERSTATE-395

.5 MI SOUTH OF ROUTE 169, CT

Built 1958 Load: 46.0 t ADT: 1,091

ROUTE 8 SB

Fair

Over: NB ACC LOWER DERBY AVE

3.7 MI NORTH OF ROUTE 34, CT

Built 1961 Load: 46.0 t ADT: 27,000

US ROUTE 44 & RTE

Fair

Over: INDIAN MEADOW BROOK

0.4 MILE WEST OF RTE. 263, CT

Built 1940 Load: 46.0 t ADT: 6,200

INTERSTATE-395 NB

Fair

Over: WHETSTONE BROOK

.6 MILE S OF ROUTE 101, CT

Built 1962 Load: 46.0 t ADT: 15,100

INTERSTATE-395 SB

Fair

Over: WHETSTONE BROOK

.6 MILE SOUTH OF RTE 101, CT

Built 1962 Load: 46.0 t ADT: 16,600

ROUTE 8 NORTHBOUND

Fair

Over: GRAHAM VILLAGE ROAD

BETWEEN EXITS 44 & 45, CT

Built 1964 Load: 46.0 t ADT: 9,400

INTERSTATE-95 NB

Fair

Over: JERRY BROWNE ROAD

0.6 MI N OF ROUTE 27, CT

Built 1964 Load: 46.0 t ADT: 22,400

ROUTE 17

Fair

Over: LITTLE RIVER

200 FT EAST OF I-91, CT

Built 1965 Load: 46.0 t ADT: 23,100

ROUTE 8 NORTHBOUND

Fair

Over: WASHINGTON AVENUE

.7 MI SOUTH OF I-84, CT

Built 1965 Load: 46.0 t ADT: 25,400

ROUTE 63

Fair

Over: HOP BROOK

1 MI SOUTH OF RT 84, CT

Built 1966 Load: 46.0 t ADT: 13,300

ROUTE 8 NORTHBOUND

Fair

Over: CATHERINE ST & SB MAIN

1.3 MI N OF I-95, CT

Built 1970 Load: 46.0 t ADT: 88,000

ROUTE 8 SOUTHBOUND

Fair

Over: CATHERINE ST & RTE 8 SB

1.3 MI N OF I-95, CT

Built 1970 Load: 46.0 t ADT: 44,200

ROUTE 320 (RUBY RD

Fair

Over: INTERSTATE-84

INTERSTATE-84 EXIT 71, CT

Built 1978 Load: 46.0 t ADT: 3,400

I-84 RAMP 248

Fair

Over: HOCKANUM RIVER

EXIT 63 ON RAMP TO I84 EB, CT

Built 1981 Load: 46.0 t ADT: 6,700

US ROUTE 5

Fair

Over: SCANTIC RIVER

0.3 MILE NORTH OF RTE 194, CT

Built 1941 Load: 46.0 t ADT: 19,100

Showing 1,951-2,000 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.