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

ASYLUM AVENUE

Fair

Over: EAST BRANCH TROUT BROOK

40 E OF TROUT BROOK DR., CT

Built 1984 Load: 32.7 t ADT: 6,542

FARMINGTON AVENUE

Fair

Over: TROUT BROOK

50 W. OF TROUT BROOK DR, CT

Built 1983 Load: 32.7 t ADT: 16,162

TROUT BROOK DRIVE

Fair

Over: EAST BRANCH TROUT BROOK

850 S INT ASYLUM AVENUE, CT

Built 1983 Load: 32.7 t ADT: 16,760

BUDDINGTON ROAD

Fair

Over: FARMILL RIVER

0.1 MI E OF HUNTINGTON RD, CT

Built 1981 Load: 32.7 t ADT: 1,100

ROUTE 161

Fair

Over: LATIMERS BROOK

1.0 MI S OF ROUTE 85, CT

Built 1984 Load: 32.7 t ADT: 3,000

SHARON VALLEY RD

Fair

Over: INDIAN POND CREEK

.4 MI N. OF ROUTE 343, CT

Built 1984 Load: 32.7 t ADT: 664

WHITNEY AVENUE #2

Fair

Over: PEQUONNOCK RIVER

0.3 MI EAST OF ROUTE 111, CT

Built 1985 Load: 32.7 t ADT: 3,756

DALEVILLE SCHL RD

Fair

Over: FENTON RIVER

AT JCT OF DALEVILLE ROAD, CT

Built 1940 Load: 32.7 t ADT: 152

ROUTE 175

Fair

Over: BASS BROOK

0.1 MI W. OF NEWINGTON TL, CT

Built 1985 Load: 32.7 t ADT: 17,500

JOBS HILL ROAD

Fair

Over: BROAD BROOK

0.5 MILE NORTH OF RTE 140, CT

Built 1986 Load: 32.7 t ADT: 3,500

KING HILL ROAD

Fair

Over: INDIAN POND CREEK

600 FT E. SHARON VALLY RD, CT

Built 1986 Load: 32.7 t ADT: 1,829

STATE STREET NORTH

Fair

Over: UNION STATION PUMP HOUSE

BETWEEN US1 & FAIR STREET, CT

Built 1968 Load: 32.7 t ADT: 2,100

SHADDUCK ROAD

Fair

Over: HOP BROOK

0.3 MI S OF ROUTE 188, CT

Built 1986 Load: 32.7 t ADT: 754

EAST OLD ROUTE 6

Fair

Over: LITTLE RIVER

0.8 MILES EAST OF RTE 97, CT

Built 1921 Load: 32.7 t ADT: 500

ROUTE 167

Fair

Over: HOP BROOK POND

0.4 MI WEST OF RTE 10/202, CT

Built 1986 Load: 32.7 t ADT: 12,200

ROUTE 67

Fair

Over: LITTLE RIVER

1.3 MILES WEST OF ROUTE 8, CT

Built 1987 Load: 32.7 t ADT: 16,900

MUNSON ROAD

Fair

Over: SCOVILLE RESERVOIR

0.4 MI E OF ROUTE 69, CT

Built 1986 Load: 32.7 t ADT: 2,394

HAYESTOWN AVE

Fair

Over: PADANARAM BROOK

0.1 MI E OF ROUTE 37, CT

Built 1987 Load: 32.7 t ADT: 20,015

ROUTE 196

Fair

Over: POCOTOPAUG CREEK

0.64 MILES SOUTH OF RT-66, CT

Built 1913 Load: 32.7 t ADT: 3,100

JAIL HILL ROAD

Fair

Over: BEAVER MEADOW BROOK

1.1 MI West OF ROUTE 154, CT

Built 1986 Load: 32.7 t ADT: 1,045

GAGER ROAD

Fair

Over: GARDNER BROOK

500 FT. EAST OF ROUTE 163, CT

Built 1984 Load: 32.7 t ADT: 271

PARKS ROAD

Fair

Over: BROAD BROOK

0.3 MI N OF ROUTE 164, CT

Built 1900 Load: 32.7 t ADT: 145

BEAVER MEADOW ROAD

Fair

Over: BEAVER MEADOW BROOK

0.2 MI WEST OF ROUTE 9, CT

Built 1983 Load: 32.7 t ADT: 1,000

SOUTH MAIN STREET

Fair

Over: BLACKLEDGE RIVER

.25MI S OF EXIT 15 RT 2WB, CT

Built 1920 Load: 32.7 t ADT: 1,200

PORTAGE ROAD

Fair

Over: NORTH BRANCH PARK RIVER

375 FT EAST OF ROUTE 189, CT

Built 1987 Load: 32.7 t ADT: 2,406

BRIDGE STREET

Fair

Over: BROAD BROOK

0.1 MI FROM JCT CINDY RD., CT

Built 1970 Load: 32.7 t ADT: 135

CEDARWOOD DRIVE

Fair

Over: MEETINGHOUSE BROOK

150 W. OF S. CURTIS ST., CT

Built 1970 Load: 32.7 t ADT: 789

WARPAS ROAD

Fair

Over: NECK RIVER

0.2 MI N GREEN HILL RD, CT

Built 1987 Load: 32.7 t ADT: 1,086

VALLEY ROAD

Fair

Over: BIRDSEYE BROOK

SOUTH OF ESSEX HILL ROAD, CT

Built 1987 Load: 32.7 t ADT: 186

RIVER ROAD

Fair

Over: MILL BROOK

JCT RTE 128 & RIVER RD #1, CT

Built 1987 Load: 32.7 t ADT: 260

SR 816

Fair

Over: POOTATUCK RIVER

CENTER OF SANDY HOOK, CT

Built 1988 Load: 32.7 t ADT: 9,100

SYLVAN ROAD SOUTH

Fair

Over: STONY BROOK

500 FT W OF ROUTE 33, CT

Built 1960 Load: 32.7 t ADT: 2,850

ROUTE 8

Fair

Over: BROOK

0.9 MI N OF WINCHESTER TL, CT

Built 1988 Load: 32.7 t ADT: 3,400

US ROUTE 7

Fair

Over: HOLLENBECK RIVER

.28 MI SO OF RTE 63 INT, CT

Built 1988 Load: 32.7 t ADT: 2,500

STONE BRIDGE ROAD

Fair

Over: LITTLE RIVER

0.6 MI EAST OF ROUTE 171, CT

Built 1914 Load: 32.7 t ADT: 561

ROUTE 140

Fair

Over: ABORN BROOK

1 MI EAST OF RTE 30, CT

Built 1988 Load: 32.7 t ADT: 1,400

ROUTE 145

Fair

Over: MENUNKETESUCK RIVER

0.6 MI S OF I-95, CT

Built 1988 Load: 32.7 t ADT: 7,700

ROUTE 70

Fair

Over: TEN MILE RIVER

1.7 MI EAST OF I-84, CT

Built 1989 Load: 32.7 t ADT: 15,000

ROUTE 160

Fair

Over: ROARING BROOK

0.2 MI WEST RTE 17, CT

Built 1910 Load: 32.7 t ADT: 1,500

BORGLUM ROAD

Fair

Over: SILVERMINE RIVER

WILTON-NEW CANAAN TL, CT

Built 1988 Load: 32.7 t ADT: 500

CHESTNUT HILL ROAD

Fair

Over: PINE BROOK

0.1 MI S OF ROUTE 16, CT

Built 1987 Load: 32.7 t ADT: 280

LAKE AVENUE

Fair

Over: LAKE COMPOUNCE ENTRANCE

AT SOUTHINGTON TOWN LINE, CT

Built 1988 Load: 32.7 t ADT: 3,570

LAUREL HILL ROAD

Fair

Over: BLACKWELL BROOK

1 MI NORTH OF US ROUTE 6, CT

Built 1987 Load: 32.7 t ADT: 539

ROUTE 189

Fair

Over: KENDELL BROOK

1 MILE NORTH ROUTE 10&202, CT

Built 1988 Load: 32.7 t ADT: 6,700

ROUTE 67

Fair

Over: TRANSYLVANIA BROOK

1/10 MI N OF ROUTE 172, CT

Built 1989 Load: 32.7 t ADT: 4,100

ROUTE 171

Fair

Over: BUNGEE BROOK

200 WEST OF JCT RTE 198, CT

Built 1988 Load: 32.7 t ADT: 2,100

ROUTE 151

Fair

Over: MINE BROOK

0.6 MI S OF ROUTE 66, CT

Built 1989 Load: 32.7 t ADT: 2,500

FLAGG ROAD

Fair

Over: HUNTERS POND

0.9 MILE WEST OF ROUTE 44, CT

Built 1985 Load: 32.7 t ADT: 2,457

ATWATER ROAD

Fair

Over: RATTLESNAKE BROOK

100 FT SOUTH OF MAPLE AVE, CT

Built 1979 Load: 32.7 t ADT: 135

ROUTE 189

Fair

Over: MOUNTAIN BROOK

700 FEET SOUTH OF SR 539, CT

Built 1988 Load: 32.7 t ADT: 4,700

Showing 851-900 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.