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

WEST CEDAR STREET

Poor

Over: FIVE MILE RIVER

800 FT WEST RICHARDS AVE, CT

Built 1910 Load: 32.7 t ADT: 5,020

CENTER STREET

Poor

Over: HARBOR BROOK

250 FT NO OF PRATT STREET, CT

Built 1871 Load: 32.7 t ADT: 6,186

NEWELL STREET

Poor

Over: QUINNIPIAC RIVER

0.2 MI N OF WEST QUEEN ST, CT

Built 1964 Load: 32.7 t ADT: 2,116

RUSSELL AVENUE

Poor

Over: PHILO BROOK

875WEST OF WENDOVER ROAD, CT

Built 1969 Load: 32.7 t ADT: 1,033

BROOK ROAD #2

Poor

Over: MERRICK BROOK

0.8 MI N OF JCT ROUTE 14, CT

Built 1970 Load: 32.7 t

BASS ROAD

Poor

Over: MERRICK BROOK

0.25 mi S GAGER HILL RD, CT

Built 1932 Load: 32.7 t

HYDEVILLE ROAD

Poor

Over: FURNACE BROOK

300 FT FR JCT ROUTE 19, CT

Built 1935 Load: 32.7 t ADT: 644

FORGE HILL ROAD

Poor

Over: PACHAUG RIVER

0.6 MI NORTH OF ROUTE 165, CT

Built 1920 Load: 32.7 t ADT: 463

MOREHOUSE HWY #1

Poor

Over: MILL RIVER

AT JCT OF CANTERBURY LANE, CT

Built 1970 Load: 32.7 t ADT: 1,930

JUDGES HOLLOW RD

Poor

Over: ASPETUCK RIVER

AT THE WESTON TOWN LINE, CT

Built 1957 Load: 32.7 t ADT: 310

GREENS FARMS ROAD

Poor

Over: SASCO BROOK

FAIRFIELD TOWN LINE., CT

Built 1973 Load: 32.7 t ADT: 3,500

LOVERS LANE

Poor

Over: COMSTOCK BROOK

300 FT NORTH OF ROUTE 33, CT

Built 1930 Load: 32.7 t ADT: 420

RINGS END ROAD

Poor

Over: GORHAMS POND

0.5 MI EAST OF US ROUTE 1, CT

Built 1929 Load: 32.7 t ADT: 2,600

GEO.WASHINGTON HWY

Poor

Over: MIRY BROOK

0.25 MILE W OF DANBURY TL, CT

Built 1986 Load: 32.7 t ADT: 3,160

DEPOT ROAD

Poor

Over: NORWALK RIVER

90 FEET EAST OF ROUTE 7, CT

Built 1910 Load: 32.7 t

INTERSTATE-84 EB

Poor

Over: I-84WB RTE8 NAUGATUCK RV

I-84 EXIT 20, CT

Built 1967 Load: 33.0 t ADT: 63,000

BOGUE ROAD #1

Poor

Over: NAUGATUCK RIVER

TORRINGTON-HARWINTON T.L., CT

Built 1956 Load: 33.0 t ADT: 933

I-84 TR 809

Poor

Over: ROUTE 8 NB RIVERSIDE ST

SB RTE 8 EXIT 31TO EB I84, CT

Built 1966 Load: 33.4 t ADT: 14,600

INTERSTATE 84 WB

Poor

Over: RTE 8 NAUG RIV M-N RR

WATERBURY LOWER LEVEL, CT

Built 1967 Load: 33.6 t ADT: 33,600

SHERMAN STREET

Poor

Over: YANTIC RIVER

1 MILE WEST OF ROUTE 2, CT

Built 1955 Load: 33.6 t ADT: 5,227

QUARRY ROAD

Poor

Over: INTERSTATE-95

1.7 MI N OF US ROUTE 1, CT

Built 1958 Load: 33.7 t ADT: 4,198

ROUTE 15 & U.S. 5

Poor

Over: P&W RR & HARTFORD AVE

0.2 MI SO. OF HARTFORD TL, CT

Built 1942 Load: 33.7 t ADT: 42,200

24 BUMPER ROAD

Poor

Over: ROUTE 8

RTE 8 BETWEEN EX 42 & 43, CT

Built 1966 Load: 33.7 t ADT: 665

ROUTE 146

Poor

Over: WEST RIVER

0.4 MI W OF ROUTE 77, CT

Built 1910 Load: 33.7 t ADT: 5,500

ROUTE 31

Poor

Over: NEW ENGLAND CENTRAL RR

0.1 MI S OF COVENTRY T.L., CT

Built 1947 Load: 34.1 t ADT: 4,600

RIVER ROAD #2

Poor

Over: STRICKLAND BROOK

AT STRICKLAND ROAD, CT

Built 1977 Load: 34.2 t ADT: 6,300

ROUTE 15 NB

Poor

Over: QUINNIPIAC RIVER

1 MI NO OF JCT ROUTE 150, CT

Built 1946 Load: 34.5 t ADT: 33,700

ROUTE 32

Poor

Over: NEW ENGLAND CENTRAL RR.

1.5 MI NORTH OF ROUTE 207, CT

Built 1941 Load: 34.8 t ADT: 11,800

SACKETT POINT ROAD

Poor

Over: QUINNIPIAC RIVER

0.6 MI E OF US ROUTE 5, CT

Built 1936 Load: 35.0 t ADT: 15,090

WHEATON ROAD

Poor

Over: EAST ASPETUCK RIVER

NEAR ROUTE 202, CT

Built 1985 Load: 35.5 t ADT: 890

ROUTE 53

Poor

Over: SAUGATUCK RESERVOIR

JCT RTE 53 & NEWTOWN TPK, CT

Built 1939 Load: 35.6 t ADT: 2,600

I-84 TR 808

Poor

Over: ROUTE 8 SB & RAMP 129

EXIT 33 ROUTE 8 NB, CT

Built 1966 Load: 35.6 t ADT: 4,200

INTERSTATE-95

Poor

Over: ROUTE 33

I-95 AT EXIT NO. 17, CT

Built 1957 Load: 36.3 t ADT: 110,000

US 44 EB & MAIN ST

Poor

Over: I-84 & MORGAN ST RAMP

.29MI EAST OF HIGH ST INT, CT

Built 1963 Load: 36.3 t ADT: 14,700

STONE HOUSE ROAD

Poor

Over: ROARING BROOK

400 FT EAST OF FENTON RD, CT

Built 1958 Load: 36.3 t ADT: 11

ROUTE 8 SOUTHBOUND

Poor

Over: NAUGATUCK RV-LOCAL ROADS

.27 MI NORTH OF TOWN LINE, CT

Built 1966 Load: 36.6 t ADT: 27,600

GROTON LONG PT RD

Poor

Over: PALMER COVE

0.3 MI W OF ROUTE 215, CT

Built 1935 Load: 36.9 t ADT: 1,985

RIVER ROAD

Poor

Over: FALLS RIVER

0.3 MI S OF BOOK HILL RD, CT

Built 1954 Load: 37.3 t ADT: 2,677

MADDOX ROAD #1

Poor

Over: EAST SPRING BROOK

.5 MI E OF NONNEWAUG RD, CT

Built 1956 Load: 37.3 t ADT: 20

LAKESIDE DRIVE

Poor

Over: NORTH STAMFORD RESERVOIR

OPP RT 137 N OF ROUTE 15, CT

Built 1936 Load: 37.6 t ADT: 4,220

INTERSTATE-84 WB

Poor

Over: HAMILTON STREET

0.4 MILE EAST OF EXIT 45, CT

Built 1967 Load: 37.9 t ADT: 68,900

CEDAR HEIGHTS ROAD

Poor

Over: RIPPOWAM RIVER

0.75 MI W OF ROUTE 137, CT

Built 1933 Load: 37.9 t ADT: 3,390

COMMERCE DRIVE

Poor

Over: ASH CREEK

0.2 MILES WEST OF I-95, CT

Built 1950 Load: 37.9 t ADT: 11,970

PEAKE BROOK ROAD

Poor

Over: LITTLE RIVER

.1 MI NORTH OF PUTNAM TL, CT

Built 1987 Load: 37.9 t ADT: 401

INTERSTATE-95 SB

Poor

Over: ROUTE 12

0.6 MI N OF THAMES RIVER, CT

Built 1964 Load: 38.2 t ADT: 27,500

US ROUTE 1

Poor

Over: METRO NORTH RAILROAD

0.5 MI S OF I-95, CT

Built 1933 Load: 38.5 t ADT: 17,400

WHISPERING PINES R

Poor

Over: STREAM

0.1 MILE N OF STONY LANE, CT

Built 1975 Load: 38.6 t ADT: 87

INTERSTATE-95

Poor

Over: ROUTE 161

0.4 MI S OF US ROUTE 1, CT

Built 1958 Load: 39.2 t ADT: 59,100

COBBLE ROAD

Poor

Over: HOLLENBECK RIVER

EAST OF RTE 63 INT, CT

Built 1956 Load: 39.9 t ADT: 378

MELLEN STREET

Poor

Over: PEQUABUCK RIVER

300 FT SOUTH OF ROUTE 72, CT

Built 1956 Load: 40.0 t ADT: 3,130

Showing 4,251-4,300 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.