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 2A

Fair

Over: INTERSTATE-395

0.9 MI W OF ROUTE 32, CT

Built 1967 Load: 46.1 t ADT: 14,400

ROUTE 68

Fair

Over: FULLING MILL BROOK

1.0 MI E OF ROUTE 63, CT

Built 1933 Load: 46.2 t ADT: 12,300

ROUTE 72

Fair

Over: POLAND RIVER

1 MILE NORTH OF ROUTE 6, CT

Built 1940 Load: 46.2 t ADT: 3,200

INTERSTATE-95

Fair

Over: SR 628 {SPRING BROOK RD}

0.6 MI S OF ROUTE 9, CT

Built 1957 Load: 46.3 t ADT: 47,200

INTERSTATE-395

Fair

Over: ROPER ROAD

2 MILES NORTH OF ROUTE 14, CT

Built 1958 Load: 46.3 t ADT: 27,700

ROUTE 9 NORTHBOUND

Fair

Over: BARTHOLOMEW ROAD

0.6 MI S OF ROUTE 155, CT

Built 1959 Load: 46.3 t ADT: 22,700

ROUTE 9 NORTHBOUND

Fair

Over: AMTRAK RAILROAD

1.25 MI(S)ELLIS ST O-PASS, CT

Built 1962 Load: 46.3 t ADT: 45,300

ROUTE 8 NORTHBOUND

Fair

Over: STEELE BROOK

1 MILE SOUTH OF EXIT 36, CT

Built 1965 Load: 46.3 t ADT: 26,300

INTERSTATE-95 SB

Fair

Over: I-95 RAMP 313

0.7 MI N OF THAMES RIVER, CT

Built 1964 Load: 46.3 t ADT: 38,300

I-84 TR 806

Fair

Over: I84 TR 808 809 RIVERSIDE

RAMP FROM 84 EB TO 8 NB, CT

Built 1965 Load: 46.3 t ADT: 7,100

ROUTE 57

Fair

Over: SAUGATUCK RVER

0.1 MI N OF ROUTE 33, CT

Built 1966 Load: 46.3 t ADT: 15,000

BRISTOL STREET #1

Fair

Over: NAUGATUCK RIVER

OFF PLATTS MILL ROAD, CT

Built 1956 Load: 46.3 t ADT: 2,100

ROUTE 40 NB

Fair

Over: SOUTH NEW ROAD

0.2 MI S OF ROUTE 10, CT

Built 1976 Load: 46.3 t ADT: 11,300

BRIDGE STREET

Fair

Over: QUINEBAUG RIVER

0.5 MI SOUTH OF ROUTE 171, CT

Built 1958 Load: 46.3 t ADT: 7,000

GREYSTONE ROAD #1

Fair

Over: PAN AM RAILROAD

0.5 MI EAST OF ROUTE 262, CT

Built 1960 Load: 46.3 t ADT: 2,500

EAGLE ROAD

Fair

Over: STILL RIVER

0.4 MI W OF SR 806, CT

Built 1960 Load: 46.3 t ADT: 15,400

FARMILL CROSSING

Fair

Over: FARMILL RIVER

0.1 MI E OF RTE 8 EXIT 12, CT

Built 1982 Load: 46.3 t ADT: 1,173

INTERSTATE 691 WES

Fair

Over: PRATT STREET

0.3 MI W OF ROUTE 322, CT

Built 1984 Load: 46.3 t ADT: 30,800

U.S. ROUTE 6

Fair

Over: PEQUABUCK RIVER

0.8 MILE WEST OF ROUTE 72, CT

Built 1986 Load: 46.3 t ADT: 16,600

ROUTE 207

Fair

Over: BEAVER BROOK

0.5 MI WEST OF ROUTE 97, CT

Built 1991 Load: 46.3 t ADT: 2,900

ROUTE 15 & US 5

Fair

Over: ROUTE 175

0.1 MI N OF NEWINGTON TL, CT

Built 1942 Load: 46.4 t ADT: 32,200

INTERSTATE-91 SB

Fair

Over: US ROUTE 5

I-91 EXIT NO. 12, CT

Built 1965 Load: 46.5 t ADT: 33,300

GRAND AVENUE

Fair

Over: MILL RIVER EAST

.2 MI EAST OF EAST STREET, CT

Built 1982 Load: 46.5 t ADT: 14,400

GURLEYVILLE ROAD

Fair

Over: FENTON RIVER

1.3 MI EAST OF ROUTE 195, CT

Built 1970 Load: 46.5 t ADT: 1,512

OMELIA ROAD

Fair

Over: SCANTIC RIVER

JCT ELLSWORTH ROAD, CT

Built 1986 Load: 46.5 t ADT: 3,622

SR 569

Fair

Over: DIBBLE HOLLOW BROOK

0.1 MI SOUTH OF ROUTE 159, CT

Built 1992 Load: 46.5 t ADT: 5,600

KELLY ROAD

Fair

Over: HOCKANUM RIVER

0.3 MILES WEST OF RT.83, CT

Built 1981 Load: 46.6 t ADT: 3,500

PALMER NECK ROAD

Fair

Over: AMTRAK RAILROAD

0.8 MI S OF US ROUTE 1, CT

Built 1926 Load: 46.6 t ADT: 1,080

STUART AVENUE

Fair

Over: INTERSTATE-95

BETWEEN EXIT 14 AND 15, CT

Built 1958 Load: 46.7 t ADT: 2,800

INTERSTATE-95

Fair

Over: STAGG STREET

0.5 MI N OF ROUTE 113, CT

Built 1959 Load: 46.7 t ADT: 101,700

FEATHERBED LANE

Fair

Over: INTERSTATE-95

0.3 MI S OF US ROUTE 1, CT

Built 1958 Load: 46.7 t ADT: 2,438

KENOSIA AVENUE

Fair

Over: I-84 & HOUSATONIC RR

1 MI W RT 7 & 84 SPLIT, CT

Built 1962 Load: 46.7 t ADT: 10,100

ROUTE 8 SOUTHBOUND

Fair

Over: GRAHAM VILLAGE ROAD

BETWEEN EXITS 44 & 45, CT

Built 1964 Load: 46.7 t ADT: 8,800

ROUTE 193

Fair

Over: INTERSTATE 395

1 MI NORTH OF US ROUTE 44, CT

Built 1965 Load: 46.7 t ADT: 2,700

ROUTE 2 EASTBOUND

Fair

Over: BLACKLEDGE RIVER

0.68 M W COLCHESTER TL, CT

Built 1968 Load: 46.7 t ADT: 17,850

LONGBROOK AVENUE

Fair

Over: METRO NORTH RAILROAD

300 FT N OF US ROUTE 1, CT

Built 1901 Load: 46.7 t ADT: 5,146

I-84 EB & RAMP 061

Fair

Over: HOCKANUM RIVER

.25 MILE WEST OF EXIT 64, CT

Built 1981 Load: 46.7 t ADT: 52,950

RIVER ROAD

Fair

Over: CANOE BROOK

500 FT S OF ROUTE 47, CT

Built 1956 Load: 46.7 t ADT: 951

ROUTE 71 (HARTFORD

Fair

Over: ROUTE 9

.2MI SOUTH FARMINGTON TL, CT

Built 1991 Load: 46.7 t ADT: 18,700

RT 2A RAMP 005 007

Fair

Over: ROUTE 2A

1 MI E. OF ROUTE 32, CT

Built 1996 Load: 46.7 t ADT: 4,600

SAND PIT ROAD

Fair

Over: EAST ASPETUCK RIVER

90 NORTH OF OLD MILL RD, CT

Built 1957 Load: 46.8 t ADT: 77

INTERSTATE-95

Fair

Over: METRO NORTH RAILROAD

275 FT N OF ROUTE 136, CT

Built 1954 Load: 47.0 t ADT: 122,500

ROUTE 8 NORTHBOUND

Fair

Over: FENN ROAD

0.9 MI S OF LITCHFIELD TL, CT

Built 1960 Load: 47.0 t ADT: 12,600

ROUTE 184

Fair

Over: ROUTE 12

0.2 MI E OF I-95, CT

Built 2002 Load: 47.0 t ADT: 16,400

ROUTE 14

Fair

Over: MOOSUP RIVER

4 MI E OF INTERSTATE 395, CT

Built 1928 Load: 47.0 t ADT: 2,200

I-91 RP 153

Fair

Over: PARKING AREA

ACCESS I-91SB @ MORGAN ST, CT

Built 1961 Load: 47.0 t ADT: 17,200

ROUTE 8 SOUTHBOUND

Fair

Over: ROUTE 4 (EAST ELM ST.)

AT EXIT 44, CT

Built 1964 Load: 47.0 t ADT: 6,000

I-84 TR 823

Fair

Over: PARKING LOT

I-84 EXT TO SISSON AVENUE, CT

Built 1969 Load: 47.0 t ADT: 4,500

PERRY AVE

Fair

Over: NORWALK RIVER

0.2 MI E OF US ROUTE 7, CT

Built 1956 Load: 47.0 t ADT: 3,948

FARMS ROAD

Fair

Over: MIANUS RIVER

OPP RIVER BANK ROAD, CT

Built 2008 Load: 47.0 t ADT: 705

Showing 2,001-2,050 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.