State profile · Near median Poor share

Wisconsin 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 Wisconsin.

14,446
Public bridges
51.0%
Good condition
6.5%
Poor condition

Wisconsin holds 14,446 public highway bridges (#19 of 52 by inventory) with a 6.52% Poor share (#23 of 52 by Poor share).

That is 6.5% 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 30 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

14,446

Public highway bridges in Wisconsin

Good Condition

51.0%

7,368 bridges rated 7-9

1.0pp vs 50% benchmark

Poor Condition

6.5%

942 bridges whose lowest applicable component is rated 0-4

-1.0pp vs national avg 7.5%

Wisconsin vs national bridge condition

Wisconsin - Good condition share 51.0%
National avg

Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).

Wisconsin - Poor-condition share 21.7%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.5%.

Wisconsin 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: Wisconsin has 14,446 bridges and a 6.5% Poor-condition share in the 2024 NBI, rank #30 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 (%) WI, Public bridges in inventory (thousands): 14.4k · Poor-condition share (%): 6.52%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%CT, Public bridges in inventory (thousands): 4.4k · Poor-condition share (%): 4.72%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%WY, Public bridges in inventory (thousands): 3.1k · Poor-condition share (%): 6.51%
Inventory size and Poor-condition share are different measures: Wisconsin has 14,446 bridges and a 6.5% Poor-condition share in the 2024 NBI, rank #30 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.

Wisconsin 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

14,446 19th of 54 higher than 35 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 Wisconsin

The highlighted point is Wisconsin: 14,446 bridges and 6.52% in Poor condition, rank #30 of 54 jurisdictions ordered from the lowest share upward. The five jurisdictions immediately above and below Wisconsin on that same Poor-share ordering:

  • South Carolina: 9,490 bridges · 6.17% Poor
  • Wyoming: 3,136 bridges · 6.51% Poor
  • Wisconsin: 14,446 bridges · 6.52% Poor
  • Hawaii: 1,195 bridges · 6.53% Poor
  • North Carolina: 19,210 bridges · 6.76% Poor

The full national sortable table lives on the rankings page.

Material families in Wisconsin

Exclusive FHWA material families across all 14,446 bridges in this state; continuous variants fold into the parent family. Orthogonal to the Poor-share scatter above.

Who maintains Wisconsin’s inventory

State agency holds 37.0% of the 14,446 public highway bridges filed under Wisconsin in the 2024 NBI, the agency-of-record split for this state, not a condition verdict.

When Wisconsin’s bridges were built

Pre-1950 construction accounts for 8.5% of the 14,446 bridges with a recorded original year in Wisconsin. Era bands are orthogonal to the Poor-share ranking above.

Condition Distribution

Wisconsin51%42.5%GoodFairPoor
Bridge inventory deck-condition mix - Wisconsin (FHWA NBI)

Counties (72)

Adams 41 Ashland 84 Barron 319 Bayfield 103 Brown 466 Buffalo 238 Burnett 67 Calumet 62 Chippewa 359 Clark 296 Columbia 183 Crawford 211 Dane 590 Dodge 212 Door 32 Douglas 135 Dunn 245 Eau Claire 236 Florence 20 Fond du Lac 251 Forest 53 Grant 383 Green 244 Green Lake 48 Iowa 209 Iron 48 Jackson 218 Jefferson 182 Juneau 172 Kenosha 109 Kewaunee 93 La Crosse 249 Lafayette 217 Langlade 78 Lincoln 157 Manitowoc 269 Marathon 530 Marinette 135 Marquette 81 Menominee 25 Milwaukee 893 Monroe 374 Oconto 149 Oneida 61 Outagamie 290 Ozaukee 105 Pepin 57 Pierce 248 Polk 73 Portage 182 Price 104 Racine 133 Richland 298 Rock 304 Rusk 151 Sauk 271 Sawyer 97 Shawano 160 Sheboygan 240 St. Croix 298 Taylor 176 Trempealeau 260 Vernon 333 Vilas 29 Walworth 206 Washburn 49 Washington 162 Waukesha 369 Waupaca 169 Waushara 53 Winnebago 263 Wood 239

Wisconsin 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 Wisconsin on the same metric.

SC

South Carolina

6.17% top marginal rate
Structure
Progressive
Burden @ $100K
$9,490

WY

Wyoming

6.51% top marginal rate
Structure
Progressive
Burden @ $100K
$3,136
Selected

WI

Wisconsin

6.52% top marginal rate
Structure
Progressive
Burden @ $100K
$14,446

HI

Hawaii

6.53% top marginal rate
Structure
Progressive
Burden @ $100K
$1,195

NC

North Carolina

6.76% top marginal rate
Structure
Progressive
Burden @ $100K
$19,210

Bridges Needing Most Attention in Wisconsin

Six lowest-condition bridges in Wisconsin, ranked by the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.

LRD CASBERG COULEE

Poor

Over: LONG COULEE CREEK

0.2M E JCT CTH V, La Crosse, WI

Built 1984 Load: 0.0 t ADT: 265

LRD IRR (ENSINGER

Poor

Over: BRUNSWEILER RIVER

0.7M E JCT STH 13, Ashland, WI

Built 1920 Load: 0.0 t ADT: 20

LRD N 50TH ST (DEA

Poor

Over: MENOMONEE RIVER

0.2M S JCT STATE ST, Milwaukee, WI

Built 1976 Load: 0.0 t ADT: 1

LRD PEDESTRIAN (WO

Poor

Over: MILWAUKEE RIVER

0.5M E JCT USH 45, Washington, WI

Built 1891 Load: 0.0 t

LRD ACCESS RD

Poor

Over: MENASHA CHANNEL

ACCESS TO PARKING LOT BY, Winnebago, WI

Built 1960 Load: 1.6 t ADT: 20

LRD MARKET RD

Poor

Over: BEAR CREEK

1.2M N JCT STH 76, Outagamie, WI

Built 1958 Load: 1.6 t ADT: 1,175

All Bridges in Wisconsin

USH 12/18 EB-S BEL

Fair

Over: YAHARA RIVER

1.7M E JCT CTH MC, Dane, WI

Built 1988 Load: 32.4 t ADT: 62,000

USH 12/18 WB-S BEL

Fair

Over: YAHARA RIVER

1.5M W JCT USH 51 TO N, Dane, WI

Built 1988 Load: 32.4 t ADT: 62,000

USH 12/18

Fair

Over: DRAINAGE DITCH

0.2M E JCT USH 51 TO S, Dane, WI

Built 1987 Load: 32.4 t ADT: 86,700

USH 12 EB-USH 18 E

Fair

Over: USH 51

3.2 MI. E OF JOHN NOLEN (, Dane, WI

Built 1988 Load: 32.4 t ADT: 58,500

CTH D

Fair

Over: NINE SPRINGS CREEK

1.0M S JCT USH 12, Dane, WI

Built 1974 Load: 32.4 t ADT: 27,400

LRD SYCAMORE AVE

Fair

Over: STARKWEATHER CREEK

0.7M N JCT STH 30, Dane, WI

Built 1978 Load: 32.4 t ADT: 6,800

USH 51

Fair

Over: SAUNDERS CREEK

1.0M N JCT IH 90 TO W, Dane, WI

Built 1991 Load: 32.4 t ADT: 4,800

USH 51-STOUGHTON R

Fair

Over: STARKWEATHER CREEK

0.3M N JCT STH 30, Dane, WI

Built 1992 Load: 32.4 t ADT: 23,500

USH 18-USH 151

Fair

Over: TRIB BADGER MILL CREEK

0.2M E JCT STH 69 TO S, Dane, WI

Built 1994 Load: 32.4 t ADT: 26,700

STH 69

Fair

Over: TRIB BADGER MILL CREEK

3.7M N JCT CTH PB TO S, Dane, WI

Built 1994 Load: 32.4 t ADT: 6,200

USH 18 & USH 151

Fair

Over: TRIB BADGER MILL CREEK

0.4M E JCT STH 69 TO S, Dane, WI

Built 1994 Load: 32.4 t ADT: 27,500

USH 18-USH 151 EB

Fair

Over: BADGER MILL CREEK

1.2M E JCT CTH PB, Dane, WI

Built 1994 Load: 32.4 t ADT: 31,200

USH 18-USH 151 EB/

Fair

Over: BADGER MILL CREEK

1.6M E JCT CTH PB, Dane, WI

Built 1995 Load: 32.4 t ADT: 33,000

LRD NORTHERN LIGHT

Fair

Over: BR. BADGER MILL CREEK

0.1 M W JCT NINE MOUND, Dane, WI

Built 2004 Load: 32.4 t ADT: 4,635

LRD HAIGHT FARM RD

Fair

Over: SWAN CREEK

AT SWAN CREEK, Dane, WI

Built 2015 Load: 32.4 t ADT: 1,400

USH 51

Fair

Over: UNNAMED WATERWAY

3.3 M N JCT STH 138, Dane, WI

Built 2016 Load: 32.4 t ADT: 11,500

CTH PD

Fair

Over: BADGER MILL CREEK

1.1 MILE E JCT CTH M, Dane, WI

Built 1993 Load: 32.4 t ADT: 10,400

STH 33-STATE ST

Fair

Over: FOX LAKE OUTLET

1.8M E JCT CTH A TO N, Dodge, WI

Built 1964 Load: 32.4 t ADT: 9,700

STH 16

Fair

Over: SILVER CREEK

1.9M E JCT CTH Q, Dodge, WI

Built 1960 Load: 32.4 t ADT: 6,300

CTH G

Fair

Over: STH 16-STH 60

AT JCT WITH STH 16, Dodge, WI

Built 1967 Load: 32.4 t ADT: 1,100

LRD ELMWOOD RD

Fair

Over: ROCK RIVER

1.8M E JCT CTH R, Dodge, WI

Built 1969 Load: 32.4 t ADT: 117

CTH TW MAIN ST

Fair

Over: E BR ROCK RIVER

0.3M W JCT CTH Y, Dodge, WI

Built 1972 Load: 32.4 t ADT: 2,215

LRD JEFFERSON RD

Fair

Over: RUBICON RIVER

0.5M N JCT CTH NN, Dodge, WI

Built 1979 Load: 32.4 t ADT: 176

LRD GILL RD

Fair

Over: E BR ROCK RIVER

0.5M E JCT CTH Y, Dodge, WI

Built 1981 Load: 32.4 t ADT: 99

LRD DOHRMAN RD

Fair

Over: EAST BR ROCK RIVER

0.3M N JCT CTH TW, Dodge, WI

Built 1984 Load: 32.4 t ADT: 366

STH 67-STH 175

Fair

Over: KUMMEL CREEK

0.4M N JCT STH 28 TO E, Dodge, WI

Built 1989 Load: 32.4 t ADT: 2,700

STH 67

Fair

Over: HEPP CREEK

0.3M N JCT STH 60, Dodge, WI

Built 1993 Load: 32.4 t ADT: 3,100

IH 41

Fair

Over: BR E BR ROCK RIVER

0.7M N JCT STH 28 TO W, Dodge, WI

Built 1994 Load: 32.4 t ADT: 34,200

CTH J

Fair

Over: STONEY CREEK

0.9M W JCT CTH S, Door, WI

Built 1987 Load: 32.4 t ADT: 212

STH 57 NB

Fair

Over: FABRY CR

2.2 MI N OF CO LINE, Door, WI

Built 2008 Load: 32.4 t ADT: 10,800

USH 53-E 2ND ST

Fair

Over: LSTT RR

0.9M N JCT USH 2 TO W, Douglas, WI

Built 1962 Load: 32.4 t ADT: 18,400

USH 53-E 2ND ST

Fair

Over: SOO LINE

0.8M N JCT USH 2 TO W, Douglas, WI

Built 1962 Load: 32.4 t ADT: 18,400

USH 2

Fair

Over: AMNICON RIVER

5.8M E JCT STH 13 TO S, Douglas, WI

Built 1984 Load: 32.4 t ADT: 6,800

STH 13

Fair

Over: TRASK CREEK

0.3M N JCT CTH H, Douglas, WI

Built 1986 Load: 32.4 t ADT: 600

CTH G

Fair

Over: TOTAGATIC RIVER

5.8M N JCT STH 77, Douglas, WI

Built 1988 Load: 32.4 t ADT: 354

USH 2-USH 53-E 2ND

Fair

Over: NEMADJI RIVER

2.4M E JCT USH 53 TO N, Douglas, WI

Built 1989 Load: 32.4 t ADT: 23,300

CTH S

Fair

Over: BOIS BRULE RIVER

6.2M S JCT CTH B, Douglas, WI

Built 2002 Load: 32.4 t ADT: 451

LRD RICE FARM RD

Fair

Over: LITTLE AMNICON R

0.2M E JNC CTH K, Douglas, WI

Built 2009 Load: 32.4 t ADT: 103

STH 105-UNION ST

Fair

Over: ST LOUIS RIVER

AT MINNESOTA STATE LINE, Douglas, WI

Built 1910 Load: 32.4 t ADT: 2,205

IH 94 WB

Fair

Over: ELK MOUND MARSH EQUALIZR

2.2M W JCT USH 12 TO W, Dunn, WI

Built 1958 Load: 32.4 t ADT: 18,350

IH 94 WB

Fair

Over: USH 12-STH 29

7.1M W JCT CTH EE (H), Dunn, WI

Built 1959 Load: 32.4 t ADT: 15,250

IH 94 EB

Fair

Over: USH 12-STH 29

6.5M E JCT CTH B (H), Dunn, WI

Built 1959 Load: 32.4 t ADT: 15,250

STH 29

Fair

Over: S BR GILBERT CREEK

1.8M E JCT CTH PP, Dunn, WI

Built 1969 Load: 32.4 t ADT: 1,800

STH 64

Fair

Over: OTTER CREEK

2.2M E JCT STH 25 TO N, Dunn, WI

Built 1975 Load: 32.4 t ADT: 1,000

STH 64

Fair

Over: BEAVER CREEK

0.1M E JCT CTH M, Dunn, WI

Built 1987 Load: 32.4 t ADT: 2,000

STH 85

Fair

Over: BR CHIPPEWA RIVER

0.2M E JCT CTH H TO N, Dunn, WI

Built 1992 Load: 32.4 t ADT: 2,800

CTH J

Fair

Over: LITTLE ELK CREEK

TOWN OF RED CEDAR, Dunn, WI

Built 1996 Load: 32.4 t ADT: 639

USH 12 EB-STH 25 S

Fair

Over: RED CEDAR RIVER

1.1M E JCT STH 25, Dunn, WI

Built 1941 Load: 32.4 t ADT: 8,950

USH 12

Fair

Over: ANNIS CREEK

1.5M E JCT CTH K, Dunn, WI

Built 1949 Load: 32.4 t ADT: 2,900

IH 94 WB

Fair

Over: ELK CREEK

2.6M W JCT CTH EE TO W, Eau Claire, WI

Built 1959 Load: 32.4 t ADT: 15,250

Showing 3,001-3,050 of 14,446 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 Wisconsin's inventory picture to drill to a county or a specific span.

  • Browse counties in Wisconsin 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. Wisconsin 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.