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

WILCOX STREET

Fair

Over: SUMNER BROOK

0.2 MI E OF MILLBROOK RD, CT

Built 2010 Load: 41.7 t ADT: 338

US ROUTE 202

Fair

Over: BUTTERNUT BROOK

1 MILE NORTH OF ROUTE 209, CT

Built 1988 Load: 41.7 t ADT: 7,200

BULLS BRIDGE ROAD

Fair

Over: SPOONER DAM OVERFLOW

.3 MI WEST OF RTE 7, CT

Built 1991 Load: 41.7 t ADT: 506

INTERSTATE-395

Fair

Over: LEFFINGWELL ROAD

0.8 MI S OF ROUTE 82, CT

Built 1958 Load: 41.8 t ADT: 54,600

ROUTE 8

Fair

Over: ROUTE 8 SB ON RAMP

AT EXIT 28, CT

Built 1960 Load: 41.8 t ADT: 51,400

ROUTE 15

Fair

Over: ROUTE 137

ROUTE 15 EXIT 35, CT

Built 1937 Load: 41.8 t ADT: 66,520

ROUTE 313

Fair

Over: LITTLE RIVER

200 FEET EAST OF ROUTE 67, CT

Built 1936 Load: 41.8 t ADT: 3,000

INTERSTATE-84 WB

Fair

Over: SR 501 NB & I-84 TR 821

.31MI EAST OF JC SR501 SB, CT

Built 1965 Load: 41.8 t ADT: 57,600

INTERSTATE-84 EB

Fair

Over: PARKING LOT

.57 MI EAST OF OLIVE ST, CT

Built 1969 Load: 41.8 t ADT: 64,400

SR 503 EASTBOUND

Fair

Over: PARKING LOT

RAMP SISSON AVE TO I84 EB, CT

Built 1969 Load: 41.8 t ADT: 10,000

BLAKE STREET

Fair

Over: WEST RIVER

2 TENTHS EAST OF ROUTE 63, CT

Built 1995 Load: 41.8 t ADT: 7,000

DRAKE HILL ROAD

Fair

Over: FARMINGTON RIVER

110 W. OF RIVERSIDE RD, CT

Built 1988 Load: 41.8 t ADT: 4,700

ROUTE 2 WESTBOUND

Fair

Over: WALL STREET

0.5 MILE WEST OF ROUTE 16, CT

Built 1966 Load: 41.9 t ADT: 14,400

INTERSTATE-95

Fair

Over: RIVER RD &HAMMONASSET RV

2 MI N. OF ROUTE 79, CT

Built 1957 Load: 42.1 t ADT: 52,200

INTERSTATE 84 WB

Fair

Over: US ROUTE 7 NORTHBOUND

JCT US 7NB AND I-84 WB, CT

Built 1960 Load: 42.1 t ADT: 39,100

ROUTE 15

Fair

Over: ROUTE 110

ROUTE 15 - EXIT NO. 53, CT

Built 1940 Load: 42.1 t ADT: 83,800

ROUTE 110

Fair

Over: FARMILL RIVER

1.0 MI N OF ROUTE 15, CT

Built 1959 Load: 42.1 t ADT: 17,500

I-84 RAMP 199

Fair

Over: MEADOW ST & MNRR ROADWAY

BANK ST TO I-84 WB, CT

Built 1965 Load: 42.1 t ADT: 1,900

NORTH MAIN STREET

Fair

Over: WEST BRANCH TROUT BROOK

0.3 MILE NORTH OF FERN ST, CT

Built 1901 Load: 42.1 t ADT: 10,909

ROUTE 25 NB

Fair

Over: FAIRCHILD MEMORIAL PARK

0.7 MI S OF ROUTE 15, CT

Built 1971 Load: 42.1 t ADT: 21,500

MAIN STREET #1

Fair

Over: ROUTE 72 & RAMPS

AT ROUTE 72 EXIT 1C, CT

Built 1976 Load: 42.1 t ADT: 7,900

YORK STREET

Fair

Over: PARKING GARAGE

1 MILE WEST OF I-95, CT

Built 1980 Load: 42.1 t ADT: 5,600

US ROUTE 7 NB

Fair

Over: SR 805 (FEDERAL ROAD)

NB US ROUTE 7 OVER SR 805, CT

Built 1962 Load: 42.3 t ADT: 25,800

SSR 476

Fair

Over: METRO-NORTH RAILROAD

SO OF I-95 EXIT 18, CT

Built 1958 Load: 42.3 t ADT: 1,000

FAIRHAVEN ROAD

Fair

Over: PATTAGANSETT RIVER

0.3 MI E OF ROUTE 156, CT

Built 1970 Load: 42.3 t ADT: 1,700

ROSELAND PARK ROAD

Fair

Over: MUDDY BROOK

2 MILE NORTH OF ROUTE 169, CT

Built 1930 Load: 42.3 t ADT: 1,887

BLACHLEY ROAD

Fair

Over: INTERSTATE 95

0.2 MI S OF US ROUTE 1, CT

Built 1958 Load: 42.4 t ADT: 1,755

INTERSTATE-95

Fair

Over: HANCOCK AVENUE

1.0 MI S OF ROUTE 8, CT

Built 1959 Load: 42.4 t ADT: 129,100

US ROUTE 1

Fair

Over: FARM RIVER

0.1 MI S OF ROUTE 142, CT

Built 1938 Load: 42.4 t ADT: 25,500

U.S. ROUTE 6

Fair

Over: PEQUABUCK RIVER

0.2 MILE WEST OF ROUTE 72, CT

Built 1935 Load: 42.4 t ADT: 15,700

ROUTE 16

Fair

Over: SALMON RIVER

5.3 MI E OF ROUTE 66, CT

Built 1932 Load: 42.4 t ADT: 6,800

ROUTE 34

Fair

Over: METRO NORTH RAILROAD

0.1 MI E OF ROUTE 8, CT

Built 1951 Load: 42.4 t ADT: 42,300

ROUTE 59

Fair

Over: MILL RIVER

625 FT N OF ROUTE 15, CT

Built 1939 Load: 42.4 t ADT: 10,800

ROUTE 69

Fair

Over: MAD RIVER

0.7 MI S OF ROUTE 322, CT

Built 1935 Load: 42.4 t ADT: 10,400

ROUTE 133

Fair

Over: HOUSATONIC RIVER

BRIDGEWATER/BROOKFIELD TN, CT

Built 1954 Load: 42.4 t ADT: 2,800

ROUTE 156

Fair

Over: AMTRAK RAILROAD

1.2 MI E OF I-95, CT

Built 1961 Load: 42.4 t ADT: 5,400

INTERSTATE-395 SB

Fair

Over: ROUTE 12

.3 MI NO OF DOG HILL ROAD, CT

Built 1962 Load: 42.4 t ADT: 16,050

ROUTE 8 NORTHBOUND

Fair

Over: ROUTE 262

1.3 MI N OF WATERBURY TL, CT

Built 1964 Load: 42.4 t ADT: 14,900

ROUTE 8 SOUTHBOUND

Fair

Over: HILL STREET

0.3 MI SOUTH OF ROUTE 202, CT

Built 1966 Load: 42.4 t ADT: 10,400

I-84 TR 811

Fair

Over: I-84 TR 812 & NAUGATUCK

NB RTE 8 TO EB 84 EXIT 31, CT

Built 1966 Load: 42.4 t ADT: 11,000

U.S. ROUTE 7 NB

Fair

Over: MAPLE STREET

0.7 MILE NORTH OF I-95, CT

Built 1970 Load: 42.4 t ADT: 27,400

U.S. ROUTE 7 SB

Fair

Over: MAPLE STREET

0.7 MILE NORTH OF I-95, CT

Built 1970 Load: 42.4 t ADT: 27,500

ROUTE 8 NORTHBOUND

Fair

Over: KENNEDY DRIVE

AT EXIT 45, CT

Built 1967 Load: 42.4 t ADT: 6,600

MAPLE AVENUE

Fair

Over: POLKVILLE BROOK

.20 MI EAST OF ROUTE 69, CT

Built 1956 Load: 42.4 t ADT: 11,253

ROUTE 133

Fair

Over: US ROUTE 7 & STILL RIVER

1 MILES N OF FEDERAL ROAD, CT

Built 1976 Load: 42.4 t ADT: 8,100

INTERSTATE 84 EB

Fair

Over: ALPINE DRIVE

.5 MI SO OF SOUTHBURY TL, CT

Built 1978 Load: 42.4 t ADT: 38,500

ROUTE 9 SOUTHBOUND

Fair

Over: EAST STREET #2

0.9 MILE SOUTH RTE 175, CT

Built 1975 Load: 42.4 t ADT: 35,000

DARLING ROAD

Fair

Over: EIGHT MILE RIVER

1.9 MI W OF ROUTE 156, CT

Built 1935 Load: 42.4 t ADT: 836

PLAINS ROAD

Fair

Over: SHETUCKET RIVER

0.6 MILE EAST OF ROUTE 32, CT

Built 1947 Load: 42.4 t ADT: 1,600

COLLEGE HILL ROAD

Fair

Over: WHITING RIVER

200 S OF CANAAN VALLEY RD, CT

Built 1999 Load: 42.4 t ADT: 448

Showing 1,701-1,750 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.