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-84 EB & RAMP 196

Fair

Over: EAST RIVER DRIVE

.2 MI EAST OF HARTFORD TL, CT

Built 1964 Load: 53.2 t ADT: 64,750

COLES ROAD

Fair

Over: ROUTE 9 NORTHBOUND

.42 MI SOUTH JCT RTE I91, CT

Built 1968 Load: 53.3 t ADT: 3,573

ROUTE 234

Fair

Over: INTERSTATE-95 SOUTHBOUND

2.2 MI N OF ROUTE 27, CT

Built 1964 Load: 53.4 t ADT: 1,400

INTERSTATE-95

Fair

Over: STEAMBOAT ROAD

0.1 MI N OF EXIT NO. 3, CT

Built 1958 Load: 53.5 t ADT: 101,800

INTERSTATE-95

Fair

Over: MAPLE AVENUE

0.1 MI S OF US ROUTE 1, CT

Built 1958 Load: 53.5 t ADT: 122,500

INTERSTATE-95

Fair

Over: ROUTE 136

JCT RT 136 EXIT 12, CT

Built 1952 Load: 53.5 t ADT: 122,500

ROUTE 17 NB

Fair

Over: ROUTE 9

1.17 MILES FROM RTE 66, CT

Built 1955 Load: 53.5 t ADT: 5,800

US ROUTE 44

Fair

Over: WILLIMANTIC RIVER

AT COVENTRY TOWN LINE, CT

Built 1930 Load: 53.5 t ADT: 3,800

ROUTE 163

Fair

Over: PEARSONS BROOK

1.65 MI. SO. OF RTE 2 EB, CT

Built 1925 Load: 53.5 t ADT: 2,500

INTERSTATE-91 NB

Fair

Over: MIDDLETOWN AVENUE

APPROX 1 M SO OF ROUTE 3, CT

Built 1964 Load: 53.5 t ADT: 71,500

ROUTE 11 SB

Fair

Over: SR 637 (LAKE HAYWARD RD)

ROUTE 11 EXIT NO. 6, CT

Built 1972 Load: 53.5 t ADT: 4,800

HERITAGE ROAD

Fair

Over: INTERSTATE-395

1.69 MI SO THOMPSON TL., CT

Built 1965 Load: 53.5 t ADT: 4,000

LOPUS ROAD

Fair

Over: ROUTE 8

BET. RTE 8 EXIT 23 & 24, CT

Built 1981 Load: 53.5 t ADT: 410

WOODWARD ROAD

Fair

Over: BLACKWELL BROOK

1.5 MILES WEST OF RTE 169, CT

Built 1985 Load: 53.5 t ADT: 607

WEST THOMPSON ROAD

Fair

Over: FRENCH RIVER

0.1 MILE WEST OF ROUTE 12, CT

Built 1935 Load: 53.5 t ADT: 3,716

INTERSTATE 95

Fair

Over: NEW CREEK ROAD

BETWEEN EXITS 18 & 19, CT

Built 1958 Load: 53.6 t ADT: 110,400

INTERSTATE-395 SB

Fair

Over: EAST FRANKLIN STREET

2.14 M N OF PLAINFIELD TL, CT

Built 1963 Load: 53.6 t ADT: 11,300

ONEILL ROAD

Fair

Over: EIGHT MILE BROOK

0.2 MI WEST OF ROUTE 188, CT

Built 1956 Load: 53.7 t ADT: 490

ROUTE 8

Fair

Over: DIVISION STREET

1.5 MI NORTH OF ROUTE 34, CT

Built 1956 Load: 53.8 t ADT: 59,000

INTERSTATE-95 SB

Fair

Over: JERRY BROWNE ROAD

0.5 MI N OF ROUTE 27, CT

Built 1964 Load: 53.8 t ADT: 22,400

ROUTE 59

Fair

Over: ROOSTER RIVER

0.3 MI N OF US ROUTE 1, CT

Built 1981 Load: 53.9 t ADT: 8,620

ROUTE 8 RAMP 143

Fair

Over: ROUTE 8 NB TR 801

0.2 MI N OF ROUTE 108, CT

Built 1983 Load: 54.0 t ADT: 4,800

ROUTE 67

Fair

Over: POMPERAUG RIVER

.5 WEST OF RT. 6 & 67, CT

Built 1958 Load: 54.1 t ADT: 5,900

INTERSTATE-691 WB

Fair

Over: FUTURE I-691 TR 804

0.06 MI N OF WB OP RTE 15, CT

Built 1965 Load: 54.1 t ADT: 40,100

ROUTE 32 SB

Fair

Over: I-95 US 1 NB SR 623&641

0.47 MI N OF JCT SSR 437, CT

Built 1974 Load: 54.1 t ADT: 7,300

ROUTE 302

Fair

Over: DEEP BROOK

0.2 MI WEST OF SUGAR LANE, CT

Built 2008 Load: 54.1 t ADT: 7,100

TEMPLE STREET

Fair

Over: FARMINGTON CANAL GREENWA

0.1 MI S OF TRUMBULL ST., CT

Built 1900 Load: 54.1 t ADT: 4,200

US ROUTE 1

Fair

Over: ISLAND BROOK

0.4 MI N OF ROUTE 8, CT

Built 1972 Load: 54.1 t ADT: 16,300

ROUTE 8 NORTHBOUND

Fair

Over: METRO NORTH & NAUGTCK RV

RTE 8 EXIT 24, CT

Built 1981 Load: 54.1 t ADT: 24,800

ROUTE 15

Fair

Over: US RTE 7 & C-D RDWY 601

US ROUTE 7 EXIT NO. 3, CT

Built 1991 Load: 54.1 t ADT: 65,320

I-95 SB TR 805

Fair

Over: SOUTH AVE & WARREN ST

I-95 SB EXIT NO. 27A, CT

Built 1968 Load: 54.2 t ADT: 17,900

INTERSTATE-95

Fair

Over: DAVIS MILL POND

BETWEEN EXITS 3 & 4, CT

Built 1958 Load: 54.3 t ADT: 117,700

INTERSTATE-395

Fair

Over: ROUTE 169

1.4 MI NORTH OF ROUTE 97, CT

Built 1958 Load: 54.4 t ADT: 37,900

ROUTE 181

Fair

Over: MORGAN BROOK

0.3 MILE NORTH OF U.S. 44, CT

Built 1957 Load: 54.4 t ADT: 1,700

ROUTE 8 SOUTHBOUND

Fair

Over: HARWINTON AVENUE

0.4 MI N. OF HARWINTON TL, CT

Built 1966 Load: 54.4 t ADT: 10,400

ROUTE 8 SOUTHBOUND

Fair

Over: LAUREL HILL ROAD

0.2 MILE SOUTH OF EXIT 43, CT

Built 1966 Load: 54.4 t ADT: 10,400

INTERSTATE 691 EB

Fair

Over: I-91 TR 813

66 EASTBOUND OVER 91813, CT

Built 1965 Load: 54.4 t ADT: 22,500

ROUTE 2 EASTBOUND

Fair

Over: PITKIN STREET

0.6 MILE E OF HARTFORD TL, CT

Built 1964 Load: 54.4 t ADT: 13,750

LONG HILL CROSS RD

Fair

Over: ROUTE 8

.6 MI NORTH OF EXIT 12, CT

Built 1975 Load: 54.4 t ADT: 5,199

INTERSTATE 84 WB

Fair

Over: ROUTE 34

0.25 MI EAST OF EXIT 11, CT

Built 1972 Load: 54.4 t ADT: 37,600

INTERSTATE-91

Fair

Over: GRAND AVENUE

0.7 MI N OF I-95, CT

Built 1965 Load: 54.4 t ADT: 135,400

ROUTE 8 SOUTHBOUND

Fair

Over: WASHINGTON AVENUE

.7 MI SOUTH OF I-84, CT

Built 1965 Load: 54.4 t ADT: 25,600

ROUTE 8 RAMP 128

Fair

Over: RIVERSIDE STREET SB

EXIT 32 ROUTE 8 NB, CT

Built 1966 Load: 54.4 t ADT: 3,000

ROUTE 8 NORTHBOUND

Fair

Over: MAIN STREET NO. 3 NB

1.4 MI N OF I-95, CT

Built 1970 Load: 54.4 t ADT: 45,300

HUNTINGDON AVENUE

Fair

Over: NAUGATUCK RIVER

NEAR EXIT 36 ROUTE 8 NB, CT

Built 1971 Load: 54.4 t ADT: 24,900

INTERSTATE-84

Fair

Over: ROARING BROOK

1.8 MILE EAST OF ROUTE 32, CT

Built 1955 Load: 54.4 t ADT: 54,200

ROUTE 157

Fair

Over: P&W RAILROAD

0.4 MI NORTH OF DURHAM TL, CT

Built 1980 Load: 54.4 t ADT: 4,100

MAPLE STREET

Fair

Over: WEPAWAUG RIVER

0.2 MI SO. OF US ROUTE 1, CT

Built 1951 Load: 54.4 t ADT: 540

MORGAN BROOK ROAD

Fair

Over: MORGAN BROOK

200 FEET EAST OF ROUTE 44, CT

Built 1957 Load: 54.4 t ADT: 646

INTERSTATE 84

Fair

Over: SAW MILL ROAD

EXIT 1, CT

Built 1962 Load: 54.4 t ADT: 72,300

Showing 2,401-2,450 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.