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 82

Good

Over: HEMLOCK VALLEY BROOK

1.5 MI E OF ROUTE 151, CT

Built 2017 Load: 60.9 t ADT: 2,700

Goshen Hill Road

Good

Over: Exeter Brook

1200 feet east of Rt. 16, CT

Built 2021 Load: 60.9 t ADT: 116

CANAL STREET

Good

Over: PEQUABUCK RIVER

0.2 MILE WEST OF ROUTE 72, CT

Built 2008 Load: 61.0 t ADT: 2,700

ROUTE 15

Good

Over: SR 502 SILVER LANE

0.6 MI SOUTH OF JCT I-84, CT

Built 1987 Load: 61.0 t ADT: 56,200

INTERSTATE-95

Good

Over: COPSE ROAD

0.5 MI SOUT OF ROUTE 79, CT

Built 1957 Load: 61.2 t ADT: 57,100

ROUTE 71

Good

Over: MATTABESSET RIVER

1.5 MI NORTH OF ROUTE 71A, CT

Built 1974 Load: 61.2 t ADT: 2,400

INTERSTATE 84 WEST

Good

Over: CENTER STREET

.17 MI W OF HOUSATONIC RV, CT

Built 1977 Load: 61.2 t ADT: 36,800

SPRING STREET

Good

Over: HOCKANUM RIVER

75FT FR JCT WEST MAIN ST, CT

Built 2010 Load: 61.2 t ADT: 1,489

US ROUTE 6

Good

Over: RAILROAD (ABANDONED)

1.06 MI WEST COLUMBIA TL, CT

Built 2000 Load: 61.2 t ADT: 17,100

I-384 WB OFF RAMP

Good

Over: HOP BROOK & BIKE PATH

EXIT 3 OFF RAMP TO SR 534, CT

Built 1969 Load: 61.5 t ADT: 1,300

HOLABIRD AVENUE

Good

Over: STILL RIVER

250 FT EAST OF ROUTE 8, CT

Built 2018 Load: 61.6 t ADT: 3,309

PARKWAY SOUTH

Good

Over: JORDAN BROOK

0.7 MI E. OF CROSS ROAD, CT

Built 1964 Load: 61.6 t ADT: 468

WINTHROP ROAD

Good

Over: FALLS RIVER

1.8 MI S OF ROUTE 80, CT

Built 2016 Load: 61.6 t ADT: 210

ROUTE 59

Good

Over: HORSE TAVERN BROOK

2.2 MI S OF ROUTE 15, CT

Built 1949 Load: 61.7 t ADT: 9,000

ROUTE 25 SB

Good

Over: ROUTE 15 & TR 806

1.4 MI N OF ROUTE 8, CT

Built 1981 Load: 61.8 t ADT: 14,300

MARION ROAD

Good

Over: TEN MILE RIVER

0.2 MI W OF ROUTE 70, CT

Built 1991 Load: 61.8 t ADT: 668

I-91 SB ON RAMP

Good

Over: AMTRAK RAILROAD

EXIT 34 RAMP FROM RTE 159, CT

Built 1990 Load: 61.9 t ADT: 4,900

US ROUTE 7 SB

Good

Over: STILL RIVER

.56 MI S OF US 202 JCT., CT

Built 1975 Load: 62.0 t ADT: 14,700

BLATCHLEY AVENUE

Good

Over: AMTRAK RAILROAD

.1 MILES SOUTH ROUTE 5, CT

Built 1989 Load: 62.0 t ADT: 3,770

BROAD HILL ROAD

Good

Over: WEST BRANCH SALMON BROOK

40 FROM SIMSBURY ROAD, CT

Built 1956 Load: 62.1 t ADT: 270

INTERSTATE-95

Good

Over: US ROUTE 1 NORTH BOUND

0.2 MI N OF ROUTE 130, CT

Built 2014 Load: 62.2 t ADT: 88,400

WAWECUS STREET

Good

Over: YANTIC RIVER

0.5 MILE SOUTH OF SR 642, CT

Built 1959 Load: 62.2 t ADT: 3,093

SHERMAN AVENUE

Good

Over: FARMINGTON CANAL GREENWA

0.2 MI W OF ROUTE 10, CT

Built 1980 Load: 62.2 t ADT: 8,400

SOUTH STREET

Good

Over: HOP RIVER

450FT FR JCT RTE 6, CT

Built 1900 Load: 62.2 t ADT: 1,500

REMINGTON STREET

Good

Over: STONY BROOK

75 FEET N OF PROSPECT ST, CT

Built 2020 Load: 62.2 t ADT: 2,525

STANFORD DRIVE

Good

Over: TUCKER BROOK

50 FT EAST OF VERNON ST, CT

Built 1998 Load: 62.2 t ADT: 148

ROUTE 2

Good

Over: DICKERSON CREEK

.3 MI EAST OF WEST RD, CT

Built 1964 Load: 62.5 t ADT: 40,200

JONES HOLLOW ROAD

Good

Over: BLACKLEDGE RIVER

3.6 MILES NORTH OF RTE 66, CT

Built 2020 Load: 62.5 t ADT: 300

SHARON ROAD

Good

Over: MAD RIVER

.3 MI EAST OF ROUTE 69, CT

Built 1975 Load: 62.5 t ADT: 8,600

I-84 RAMP 059

Good

Over: I-84 WESTBOUND ON-RAMP

EXIT 22 I-84 WEST BOUND, CT

Built 1997 Load: 62.5 t ADT: 3,000

MAPLEWOOD COURT

Good

Over: GARDNER BROOK

0.1MI. SO. OF RTE 82, CT

Built 2008 Load: 62.5 t ADT: 116

US ROUTE 7 NB

Good

Over: STILL RIVER

.50 MI N OF I-84/ 7 SPLIT, CT

Built 1976 Load: 62.6 t ADT: 27,600

ROUTE 8 SOUTHBOUND

Good

Over: SR 711 (HUNTINGTON TPKE)

0.6 MI SOUTH OF ROUTE 108, CT

Built 1982 Load: 62.6 t ADT: 34,300

BINA AVENUE

Good

Over: I-91 & HOV LANES

.18 MI NORTH WINDSOR TL, CT

Built 1990 Load: 62.6 t ADT: 2,100

SR707/WHITNEY AVE

Good

Over: MILL RIVER

.1 MILE SOUTH OF ROUTE 15, CT

Built 1991 Load: 62.6 t ADT: 12,500

US ROUTE 7

Good

Over: NORWALK RIVER

0.1 MI N OF ROUTE 102, CT

Built 2017 Load: 62.9 t ADT: 16,500

KELSEYTOWN ROAD

Good

Over: MENUNKETESUCK RIVER

100W OF BROOKSIDE DRIVE, CT

Built 2021 Load: 62.9 t ADT: 1,116

LAKEVIEW AVENUE

Good

Over: FIVE MILE RIVER

JCT OF MILL PORT AVENUE, CT

Built 1957 Load: 62.9 t ADT: 1,225

U.S. ROUTE 7 BYPAS

Good

Over: WETLAND A

1/2 MI. SO. OF US RT. 202, CT

Built 2009 Load: 62.9 t ADT: 20,800

ROUTE 8 NORTHBOUND

Good

Over: OLD STRATFORD ROAD

3.3 MI N OF ROUTE 15, CT

Built 1975 Load: 63.0 t ADT: 26,300

CLARK STREET

Good

Over: METRO NORTH RAILROAD

0.1 MI N OF BRIDGEPORT AV, CT

Built 2006 Load: 63.0 t ADT: 7,905

PLEASANT VIEW DRIV

Good

Over: HOCKANUM RIVER

900 FT WEST OF ROUTE 83, CT

Built 2018 Load: 63.2 t ADT: 1,104

UPLAND ROAD

Good

Over: EAST ASPETUCK RIVER

APPROX 65 E OF ROUTE 202, CT

Built 1978 Load: 63.2 t ADT: 542

ROUTE 82

Good

Over: SWAMP BROOK

0.8 MI W OF ROUTE 11, CT

Built 2021 Load: 63.2 t ADT: 3,400

SR 500A

Good

Over: PEQUABUCK RIVER

0.3 MILE EAST OF RTE 229, CT

Built 1966 Load: 63.2 t ADT: 5,500

INTERSTATE-91

Good

Over: BEAMANS BROOK

0.4 MILE NORTH OF EXIT 46, CT

Built 1987 Load: 63.2 t ADT: 88,700

SNOWBERRY LANE

Good

Over: E. BRANCH SILVERMINE RVR

EAST OF ROUTE 33, CT

Built 1980 Load: 63.2 t ADT: 150

ROUTE 148

Good

Over: PATTACONK BROOK

0.7 MI W OF ROUTE 15, CT

Built 1984 Load: 63.2 t ADT: 4,400

INTERSTATE-91 NB

Good

Over: ROUTE 178 (PARK AVENUE)

AT EXIT 36, CT

Built 1990 Load: 63.3 t ADT: 70,950

TOBEY HILL ROAD

Good

Over: WHITING RIVER

200 E OF CANAAN VALLEY R, CT

Built 2021 Load: 63.5 t ADT: 257

Showing 3,951-4,000 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.