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 114

Fair

Over: ROUTE 15

0.9 MI N OF ROUTE 34, CT

Built 1949 Load: 30.8 t ADT: 9,100

JOHNSON ROAD

Fair

Over: ROUTE 15

1.1 MI N OF ROUTE 114, CT

Built 1949 Load: 30.8 t ADT: 1,700

ROUTE 32

Fair

Over: ROARING BROOK

0.3 MILES NORTH OF I-84, CT

Built 1939 Load: 30.8 t ADT: 8,400

INTERSTATE-84

Fair

Over: CONNECTICUT RIVER

1 MI EAST OF I-91, CT

Built 1906 Load: 30.8 t ADT: 144,200

ROUTE 73

Fair

Over: STEELE BROOK

250 EAST OF WATERTOWN TL, CT

Built 1914 Load: 30.8 t ADT: 11,300

BURRITT STREET

Fair

Over: INTERSTATE-84

0.5 MI NORTH RT 322, CT

Built 2005 Load: 30.8 t ADT: 1,688

ROUTE 189 NB

Fair

Over: TARIFFVILLE ROAD #1

0.5 MI NO. OF JCT RTE 187, CT

Built 1960 Load: 30.8 t ADT: 7,300

SR 717

Fair

Over: MILL RIVER

0.3 MI E OF ROUTE 10, CT

Built 1948 Load: 30.8 t ADT: 18,600

ROUTE 317

Fair

Over: HESSEKY BROOK

0.9 MILE WEST OF ROUTE 6, CT

Built 1957 Load: 30.8 t ADT: 3,700

WASSUC ROAD

Fair

Over: ROUTE 2

.66 MI SOUTH OF ROUTE 83, CT

Built 1964 Load: 30.8 t ADT: 1,400

INTERSTATE-691 EB

Fair

Over: RESERVOIR AVE & STREAM

0.6 MI E OF I 691 EXIT 4, CT

Built 1970 Load: 30.8 t ADT: 34,800

ROUTE 123

Fair

Over: FIVE MILE RIVER

0.4 MI NORTH OF ROUTE 106, CT

Built 1933 Load: 30.8 t ADT: 9,300

US ROUTE 44

Fair

Over: CANAL

0.2 MI WEST OF ROUTE 12, CT

Built 1935 Load: 30.8 t ADT: 7,000

ROUTE 190

Fair

Over: CONN RIVER & AMTRAK RR

0.41 MI E OF OVLP RTE 159, CT

Built 1966 Load: 30.8 t ADT: 21,500

I-84 RAMP 190

Fair

Over: BROAD STREET & AMTRAK RR

EXIT 48 INTERSTATE-84 EB, CT

Built 1966 Load: 30.8 t ADT: 11,600

ROUTE 72 SOUTHBOUN

Fair

Over: WOOSTER STREET

0.1 MILE SOUTH OF I-84, CT

Built 1970 Load: 30.8 t ADT: 37,000

RIVER STREET

Fair

Over: WEPAWAUG RIVER

0.2 MI E OF ROUTE 162, CT

Built 1934 Load: 30.8 t ADT: 15,210

GLENVILLE STREET

Fair

Over: BYRAM RIVER

0.6 MILE EAST OF ROUTE 15, CT

Built 1948 Load: 30.8 t ADT: 12,160

LANE STREET

Fair

Over: WILMOT BROOK

100 FT N OF ROUTE 15, CT

Built 1949 Load: 30.8 t ADT: 4,200

BRIDGE STREET

Fair

Over: RIPPOWAM RIVER

100 FT W OF ROUTE 137, CT

Built 1955 Load: 30.8 t ADT: 12,530

INTERLAKEN ROAD

Fair

Over: N STAMFORD RES OUTLET

OPP RT 137 N OF ROUTE 15, CT

Built 1941 Load: 30.8 t ADT: 3,400

WOODWAY ROAD

Fair

Over: NOROTON RIVER

0.1 MI W OF ROUTE 106, CT

Built 1948 Load: 30.8 t ADT: 4,795

ROUTE 174

Fair

Over: ROUTE 9 SB

E MAIN ST OVER ROUTE 9 SB, CT

Built 1978 Load: 30.8 t ADT: 10,800

ROUTE 106

Fair

Over: METRO NORTH RAILROAD

0.8 MI N OF US ROUTE 1, CT

Built 1982 Load: 30.8 t ADT: 14,100

WORTHINGTON RIDGE

Fair

Over: MATTABESSET RIVER

0.2 MI S OF ROUTE 160, CT

Built 1996 Load: 30.8 t ADT: 464

JOSHUATOWN ROAD

Fair

Over: EIGHT MILE RIVER

0.2 MI W OF ROUTE 156, CT

Built 1936 Load: 30.8 t ADT: 350

GRASSY HILL ROAD

Fair

Over: LATIMER BROOK

0.2 MI S OF ROUTE 85, CT

Built 1940 Load: 30.8 t ADT: 347

RED BRIDGE ROAD

Fair

Over: QUINEBAUG RIVER

600 FT EAST OF FABYAN RD, CT

Built 1956 Load: 30.8 t ADT: 938

DAY ROAD

Fair

Over: BEAVER BROOK

.25 MI WEST OF ROUTE 181, CT

Built 1956 Load: 30.8 t ADT: 262

RIVERSIDE DRIVE

Fair

Over: PROV & WORC RAILROAD

100 FT SOUTH OF ROUTE 138, CT

Built 1988 Load: 30.8 t ADT: 1,040

PAPERMILL ROAD

Fair

Over: EAST ASPETUCK RIVER

.5 MI WEST OF RT 202, CT

Built 1989 Load: 30.8 t ADT: 1,224

ROUTE 4

Fair

Over: EAST BRANCH NAUGATUCK RV

0.1 MILE WEST ROUTE 800, CT

Built 1989 Load: 30.8 t ADT: 12,600

CHATFIELD STREET

Fair

Over: BLADENS RIVER

0.1 MI N OF ROUTE 67, CT

Built 1989 Load: 30.8 t ADT: 354

MOHEGAN SUN BLVD

Fair

Over: RIVERVIEW GARAGE EXIT RO

MOHEGAN SUN BOULEVARD OVE, CT

Built 1999 Load: 30.8 t ADT: 750

EAGLE VIEW GARAGE

Fair

Over: ROCK LEDGE

UPPER LEVEL ENTER AND EXI, CT

Built 1999 Load: 30.8 t ADT: 750

INDIAN SUMMER PARK

Fair

Over: MOHEGAN SUN BLVD

INDIAN SUMMER PARKING GAR, CT

Built 2001 Load: 30.8 t ADT: 750

INTERSTATE-95

Fair

Over: METRO NORTH RR & STATION

COS COB RR STA @ EXIT 4, CT

Built 1958 Load: 31.0 t ADT: 120,300

INTERSTATE-95

Fair

Over: US ROUTE 1

I-95 EXIT NO. 57, CT

Built 1958 Load: 31.1 t ADT: 59,100

ROUTE 145

Fair

Over: INTERSTATE-95

2.4 MI S OF ROUTE 153, CT

Built 1957 Load: 31.1 t ADT: 7,600

ROUTE 2

Fair

Over: WAWECUS STREET

1.2 MI EAST OF ROUTE 32, CT

Built 1959 Load: 31.1 t ADT: 40,000

ROUTE 66

Fair

Over: PROVIDENCE&WORCESTER RR

RTE 66 0.4 MI W ROUTE 32, CT

Built 1937 Load: 31.1 t ADT: 7,300

ROUTE 9 SOUTHBOUND

Fair

Over: ROUTE 155

2.50 MI NO OF HADDAM TL, CT

Built 1959 Load: 31.1 t ADT: 23,200

ROUTE 9 NORTHBOUND

Fair

Over: MATTABESSET RIVER

0.1 MI SO. OF CROMWELL TL, CT

Built 1960 Load: 31.1 t ADT: 33,100

BURR STREET

Fair

Over: ROUTE 15

BETWEEN EXITS 43 & 44, CT

Built 1939 Load: 31.1 t ADT: 1,700

ROUTE 150

Fair

Over: ROUTE 15

AT EXIT 65 OF ROUTE 15 NB, CT

Built 1947 Load: 31.1 t ADT: 12,200

ROUTE 20

Fair

Over: W BRNCH FARMINGTON RIVER

1.4 MI E OF WINCHESTER TL, CT

Built 1940 Load: 31.1 t ADT: 1,300

INTERSTATE 84 WB

Fair

Over: ROUTE 188

EXIT 16 FROM I-84, CT

Built 1964 Load: 31.1 t ADT: 32,800

PARMALEE HILL ROAD

Fair

Over: INTERSTATE 84

1.9 MI EAST OF ROUTE 25, CT

Built 1962 Load: 31.1 t ADT: 753

ROUTE 209

Fair

Over: BANTAM RIVER

SOUTH OF ROUTE 202 JCT, CT

Built 1935 Load: 31.1 t ADT: 2,400

I-91 NB RAMP 140

Fair

Over: MILL RIVER

RAMP FROM WILLOW ST TO 91, CT

Built 1965 Load: 31.1 t ADT: 4,000

Showing 501-550 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.