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

LITTLE CITY ROAD

Fair

Over: CANDLEWOOD HILL BROOK

JCT CANDLEWOOD HILL ROAD, CT

Built 1991 Load: 32.7 t ADT: 700

PUTNAM MEMORIAL

Fair

Over: DECKERS BROOK

100 FEET EAST OF RTE 159, CT

Built 1993 Load: 32.7 t ADT: 3,200

MOOSE MEADOW ROAD

Fair

Over: FENTON RIVER

1.6 MILES NORTH OF RTE 74, CT

Built 1990 Load: 32.7 t ADT: 61

SPRUCE BROOK ROAD

Fair

Over: SPRUCE BROOK

+/- 180 FT EAST OF NEW RD, CT

Built 1989 Load: 32.7 t ADT: 1,125

POND BROOK ROAD

Fair

Over: POND BROOK

100 WEST OF HANOVER RD, CT

Built 1994 Load: 32.7 t ADT: 210

BUCKLAND ROAD

Fair

Over: PLUM GULLY BROOK

0.1 MILE SOUTH OF RTE 30, CT

Built 1960 Load: 32.7 t ADT: 20,500

ROUTE 218

Fair

Over: MUCKY BROOK

.5MI EAST OF ROUTE 189, CT

Built 1992 Load: 32.7 t ADT: 27,000

PINE LEDGE ROAD

Fair

Over: STREAM

2.4 MI E OF CEDAR SWAMP, CT

Built 1930 Load: 32.7 t ADT: 120

HURRICANE BROOK RD

Fair

Over: HURRICANE BROOK

EAST OFF OF ROUTE 20, CT

Built 1934 Load: 32.7 t ADT: 20

BASIN MAIN ROAD

Fair

Over: MAD RIVER

OLD ROUTE 44, CT

Built 1940 Load: 32.7 t ADT: 42

MAIN PARK ROAD

Fair

Over: HALL MEADOW BROOK

JOHN MINETTO STATE PARK, CT

Built 1970 Load: 32.7 t ADT: 20

ROUTE 17

Fair

Over: FIVE MILE BROOK

1.3 MI N OF ROUTE 103, CT

Built 1995 Load: 32.7 t ADT: 8,000

ROCKWELL ROAD

Fair

Over: LIMEKILN BROOK

1000 NORTH OF JCT RT 302, CT

Built 1995 Load: 32.7 t ADT: 1,010

GREAT HILL ROAD

Fair

Over: BRANCH BROOK

1.5 MI WEST OF ROUTE 77, CT

Built 1994 Load: 32.7 t ADT: 608

BACKUS AVENUE

Fair

Over: BROOK

DANBURY MALL WEST ENTRAN, CT

Built 1987 Load: 32.7 t ADT: 10,190

ROUTE 109

Fair

Over: MALLORY BROOK

1.1 MI E OF ROUTE 47, CT

Built 1996 Load: 32.7 t ADT: 2,300

ELM STREET EXT.

Fair

Over: GREAT BROOK

0.1 MI EAST OF RTE.202, CT

Built 1996 Load: 32.7 t ADT: 3,895

ORANGE STREET

Fair

Over: GOVT CENTER ACCESS ROAD

ADJACENT TO 360 STATE ST., CT

Built 1975 Load: 32.7 t ADT: 3,000

GEORGE STREET

Fair

Over: CHURCH STREET TUNNEL

BTWN CHURCH & TEMPLE STs, CT

Built 1963 Load: 32.7 t ADT: 9,500

FLAT MEADOW ROAD

Fair

Over: BROOK

660 FT W OF ROUTE 77, CT

Built 1999 Load: 32.7 t ADT: 2,700

PRESTON ROAD

Fair

Over: POLAND RIVER

500 FEET WEST OF ROUTE 72, CT

Built 1996 Load: 32.7 t ADT: 1,648

ROUTE 58

Fair

Over: CRICKER BROOK

160 FT S. OF ROUTE 15, CT

Built 1938 Load: 32.7 t ADT: 16,514

ROUTE 15 RAMP #060

Fair

Over: CRICKER BROOK

RTE 15NB EXIT 45 ON-RAMP, CT

Built 1938 Load: 32.7 t ADT: 6,400

CEMETERY ROAD

Fair

Over: SUCKER BROOK

100 FROM JCT RTE 341, CT

Built 1998 Load: 32.7 t ADT: 76

ROUTE 83

Fair

Over: OGDEN BROOK

1.3 MILES SOUTH OF RTE 74, CT

Built 1974 Load: 32.7 t ADT: 14,300

INTERSTATE 91 & SR

Fair

Over: DRAINAGE

100 FT S OF AIRPORT RD, CT

Built 1964 Load: 32.7 t ADT: 106,600

ROUTE 71

Fair

Over: ROCKLEDGE BROOK

0.2 MI WEST OF ROUTE 173, CT

Built 1975 Load: 32.7 t ADT: 17,600

CIRILLO DRIVE

Fair

Over: BROOK

325 FT. WEST OF WOODBINE, CT

Built 2005 Load: 32.7 t ADT: 152

ROUTE 3

Fair

Over: BEAVER BROOK

250 N OF SPRING ST, CT

Built 2002 Load: 32.7 t ADT: 20,300

CHRISTIAN LANE

Fair

Over: WILLOW BROOK

930 FT N OF DEMING RD., CT

Built 1950 Load: 32.7 t ADT: 7,165

COMMERCE ROAD

Fair

Over: TOM BROOK

0.7 MILES SOUT OF ROUTE 6, CT

Built 1985 Load: 32.7 t ADT: 27

NILES ROAD

Fair

Over: CEDAR SWAMP BROOK

1.6 miles north of Route., CT

Built 1956 Load: 32.7 t ADT: 64

TURKEY HILL ROAD

Fair

Over: POOTATUCK RIVER

50 FT W OF RIVER RUN ROAD, CT

Built 1975 Load: 32.7 t ADT: 520

CHAPMAN AVENUE

Fair

Over: BRANDEGEE LAKE

0.2 Mi West of Pilgrim Rd, CT

Built 1980 Load: 32.7 t ADT: 2,600

RIDGE BOULEVARD

Fair

Over: UNNAMED BROOK

.1 mile west of route 187, CT

Built 2000 Load: 32.7 t ADT: 104

BROOKSIDE DRIVE

Fair

Over: Hart Meadow Brook

1500 from N. Main St., CT

Built 1965 Load: 32.7 t ADT: 209

WINCHESTER DRIVE

Fair

Over: HART MEADOW BROOK

250 east of Frencliff Dr, CT

Built 1965 Load: 32.7 t ADT: 208

MORNINGSIDE DRIVE

Fair

Over: MUDDY BROOK

100 FT SOUTH OF US RTE 1, CT

Built 1999 Load: 32.7 t ADT: 3,640

WATERCHASE DRIVE

Fair

Over: VALLEY BROOK

390 FT W OF ROUTE 99, CT

Built 1989 Load: 32.7 t ADT: 316

NELSON FARM ROAD

Fair

Over: POLKVILLE BROOK

200 south of maple ave., CT

Built 2000 Load: 32.7 t ADT: 53

SUNRISE ROAD

Fair

Over: OLD TANNERY BROOK

200 FT W OF ROUTE 69, CT

Built 2010 Load: 32.7 t ADT: 525

BARTLETT DRIVE

Fair

Over: BROOK

0.2 MI E OF INDIAN TRAIL, CT

Built 2010 Load: 32.7 t ADT: 260

CROSBY COURT

Fair

Over: STREAM

360 N OF OLD TROLLEY RD, CT

Built 1999 Load: 32.7 t ADT: 105

US ROUTE 1

Fair

Over: RIPPOWAM RIVER

0.2 MI S OF ROUTE 137, CT

Built 1976 Load: 32.8 t ADT: 12,500

INTERSTATE 95 NORT

Fair

Over: US1 QUINNIPIAC RV P&W RR

OVER QUINNIPIAC RIVER, CT

Built 2014 Load: 32.9 t ADT: 73,300

RIDGE ROAD # 1

Fair

Over: ROUTE 15

0.5 MI SOUTH OF ROUTE 22, CT

Built 1949 Load: 32.9 t ADT: 4,500

SR 642

Fair

Over: ROUTE 2

1.5 MILES WEST OF I-395, CT

Built 1999 Load: 32.9 t ADT: 17,500

ROUTE 222

Fair

Over: NAUG. RR & PRIVATE ROAD

0.1 MILE WEST OF ROUTE 8, CT

Built 1939 Load: 33.0 t ADT: 8,300

US 202 & ROUTE 67

Fair

Over: HOUSATONIC RIVER

AT INT OF ROUTE 7 & 202, CT

Built 1953 Load: 33.0 t ADT: 16,600

US ROUTE 202

Fair

Over: GULF STREAM

0.1 MI N OF LITCHFIELD TL, CT

Built 1957 Load: 33.0 t ADT: 7,900

Showing 951-1,000 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.