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

STH 80

Good

Over: PINE RIVER

0.1M N JCT CTH D TO E, Richland, WI

Built 2018 Load: 35.3 t ADT: 1,900

LRD TOWNLINE ROAD

Good

Over: STH 26

3.4M N OF IH 39/90, Rock, WI

Built 2012 Load: 35.3 t ADT: 1,400

LRD STATELINE RD E

Good

Over: IH 39/90

STATE LINE, Rock, WI

Built 2017 Load: 35.3 t ADT: 1,050

IH 39 NB / IH 90 W

Good

Over: LRD KENNEDY RD

1.1M W JCT STH 26, Rock, WI

Built 2020 Load: 35.3 t ADT: 29,625

IH 39 NB

Good

Over: ROCK RIVER

21 M N JCT IH 43, Rock, WI

Built 2016 Load: 35.3 t ADT: 26,750

CTH J

Good

Over: TURTLE CREEK

JUST NORTH OF SHOPIERE RO, Rock, WI

Built 2022 Load: 35.3 t ADT: 600

LRD BROKEN ARROW R

Good

Over: LITTLE JUMP RIVER

2.2M E JCT CTH G-88, Rusk, WI

Built 2019 Load: 35.3 t ADT: 83

STH 65

Good

Over: IH 94

1.2M N JCT CTH N, St. Croix, WI

Built 2013 Load: 35.3 t ADT: 9,300

CTH J NB & SB

Good

Over: IH 94

.5 MI N OF JCT. W CTH N, St. Croix, WI

Built 2016 Load: 35.3 t ADT: 480

LRD 233RD STREET

Good

Over: IH 94

1.3M N JCT CTH N, St. Croix, WI

Built 2016 Load: 35.3 t ADT: 460

CTH M

Good

Over: APPLE RIVER

VILLAGE OF STAR PRAIRIE, St. Croix, WI

Built 2014 Load: 35.3 t ADT: 2,814

USH 12 EB

Good

Over: STH 136

AT STH 136, Sauk, WI

Built 2015 Load: 35.3 t ADT: 7,700

USH 12 WB

Good

Over: STH 136

AT STH 136, Sauk, WI

Built 2015 Load: 35.3 t ADT: 7,700

CTH V

Good

Over: HAY CREEK

0.9M N JCT STH 33, Sauk, WI

Built 2019 Load: 35.3 t ADT: 1,900

LRD FREEDOM RD

Good

Over: SEELEY CREEK

0.3M S JCT CTH PF, Sauk, WI

Built 2018 Load: 35.3 t ADT: 210

CTH M

Good

Over: S BR EMBARRASS RIVER

1.3M E JCT USH 45, Shawano, WI

Built 2019 Load: 35.3 t ADT: 460

CTH T

Good

Over: MCKENZIE CREEK

0.6M N JCT CTH A TO W, Taylor, WI

Built 2018 Load: 35.3 t ADT: 500

CTH DD

Good

Over: SUGAR CREEK

2.5M N JCT STH 11, Walworth, WI

Built 2019 Load: 35.3 t ADT: 1,600

LRD BORG RD NB & S

Good

Over: SWAN CREEK

1.0M S JCT STH 50, Walworth, WI

Built 2016 Load: 35.3 t ADT: 2,130

LRD MILL ST

Good

Over: WHITE RIVER

0.5M S JCT STH 36, Walworth, WI

Built 2020 Load: 35.3 t ADT: 2,300

STH 67

Good

Over: ASHIPPUN RIVER

2.5 MI N JCT CTH K, Waukesha, WI

Built 2010 Load: 35.3 t ADT: 6,100

LRD PLAINVIEW ROAD

Good

Over: BARK RIVER

1.2 MILES WEST OF STH 164, Waukesha, WI

Built 2016 Load: 35.3 t ADT: 2,400

CTH XX

Good

Over: FOX RIVER

0.7M S JCT CTH X, Waushara, WI

Built 1952 Load: 35.3 t ADT: 2,100

USH 10 EB

Good

Over: IH 41 NB & SB & WCL RR

IH 41/USH10 INTERCHANGE, Winnebago, WI

Built 2016 Load: 35.3 t ADT: 32,700

IH USH 10 WB/STH 4

Good

Over: IH USH 10 EB TO IH 41 NB

USH 10/STH 441/IH 41 INTE, Winnebago, WI

Built 2018 Load: 35.3 t ADT: 8,700

WEST J STREET

Good

Over: LA CROSSE RIVER

W. J St over La Crosse R, Monroe, WI

Built 1992 Load: 35.3 t ADT: 1,000

LRD 8TH AVE

Good

Over: LITTLE ROCHE A CRI CREEK

1.8M N JCT CTH J, Adams, WI

Built 1988 Load: 35.6 t ADT: 78

CTH H

Good

Over: WHITE CREEK

1.6 MI EAST JCT CTH Z, Adams, WI

Built 2003 Load: 35.6 t ADT: 280

CTH C

Good

Over: TROUT BROOK

1.3M E JCT STH 13, Ashland, WI

Built 1976 Load: 35.6 t ADT: 225

CTH C

Good

Over: MARENGO RIVER

2.0M S JCT STH 112, Ashland, WI

Built 1990 Load: 35.6 t ADT: 161

CTH N

Good

Over: E FK CHIPPEWA RIVER

3.3M E JCT STH 13, Ashland, WI

Built 1990 Load: 35.6 t ADT: 81

LRD WILL RD (DEAD

Good

Over: TYLER FORKS RIVER

0.3M N JCT STH 169, Ashland, WI

Built 1989 Load: 35.6 t ADT: 75

LRD IRR (GOVERNMEN

Good

Over: MARENGO RIVER

0.7M N JCT CTH C, Ashland, WI

Built 2001 Load: 35.6 t ADT: 107

LRD GOSLIN ROAD (D

Good

Over: BEARTRAP CREEK

0.9M N JCT USH 2, Ashland, WI

Built 1999 Load: 35.6 t ADT: 100

LRD MAIN AVE

Good

Over: RED CEDAR RIVER

0.8M S JCT STH 48, Barron, WI

Built 1919 Load: 35.6 t ADT: 13,150

STH 25-MILL ST

Good

Over: QUADERERS CREEK

4.0M N JCT CTH D TO W, Barron, WI

Built 1958 Load: 35.6 t ADT: 3,400

USH 53 NB

Good

Over: CTH SS / WILD RIVERS TRA

4.8M N JCT STH 48 TO E, Barron, WI

Built 1984 Load: 35.6 t ADT: 5,150

STH 25

Good

Over: LOWER PINE CREEK

1.7M N JCT CTH V, Barron, WI

Built 1976 Load: 35.6 t ADT: 2,500

LRD 23RD STREET

Good

Over: RED CEDAR RIVER

0.2M N JCT STH 48, Barron, WI

Built 1985 Load: 35.6 t ADT: 402

LRD MILL STREET

Good

Over: S BR YELLOW RIVER

0.3M N JCT USH 8, Barron, WI

Built 1985 Load: 35.6 t ADT: 1,983

LRD MILL STREET

Good

Over: N CHAN YELLOW RIVER

0.3M N JCT USH 8, Barron, WI

Built 1985 Load: 35.6 t ADT: 1,962

CTH K

Good

Over: BR MOON CREEK

.2 MI. S. OF 11TH. AVE., Barron, WI

Built 1986 Load: 35.6 t ADT: 981

USH 8-DIVISION AVE

Good

Over: YELLOW RIVER

0.5M E JCT STH 25 TO N, Barron, WI

Built 1990 Load: 35.6 t ADT: 11,700

LRD 18 3/4 ST

Good

Over: BROWN CREEK

0.7M S JCT CTH OO, Barron, WI

Built 1993 Load: 35.6 t ADT: 47

LRD 8TH AVE

Good

Over: HAY RIVER

1.8M E JCT CTH P, Barron, WI

Built 1993 Load: 35.6 t ADT: 64

CTH D

Good

Over: MOOSE EAR CREEK

0.3 M W OF 28TH STREET, Barron, WI

Built 1997 Load: 35.6 t ADT: 1,334

LRD 1/2 AVENUE

Good

Over: VANCE CREEK

3.2M S JCT CTH A, Barron, WI

Built 2001 Load: 35.6 t ADT: 86

LRD 10TH AVE

Good

Over: TURTLE CREEK

1.4M E JCT CTH K, Barron, WI

Built 2004 Load: 35.6 t ADT: 105

CTH NN

Good

Over: SPRING CREEK

1.0M S JCT STH 48, Barron, WI

Built 2017 Load: 35.6 t ADT: 270

CTH D

Good

Over: NAMEKAGON RIVER

0.7M N JCT CTH M, Bayfield, WI

Built 1964 Load: 35.6 t ADT: 558

Showing 9,001-9,050 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.