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

IH 39/90 SB/EB

Good

Over: LRD NEWVILLE RD

2.1 MI. S OF STH 59, Rock, WI

Built 2019 Load: 38.2 t ADT: 29,900

IH 39 NB/ IH 90 WB

Good

Over: LRD NEWVILLE RD

6.2M W JCT STH 26 TO N, Rock, WI

Built 2020 Load: 38.2 t ADT: 26,750

LRD DZIEMELA RD.

Good

Over: POTATO CREEK

0.7M N JCT CTH D-54, Rusk, WI

Built 2016 Load: 38.2 t ADT: 50

LRD NORTH STODDARD

Good

Over: BR COON CREEK

0.7M N JCT STH 162, Vernon, WI

Built 2016 Load: 38.2 t ADT: 20

LRD DAVIDSON ROAD

Good

Over: BRANCH COON CREEK

1.0M S JCT STH 162 (0.3 M, Vernon, WI

Built 2016 Load: 38.2 t ADT: 20

STH 70

Good

Over: CRYSTAL BROOK

3.9 MI E USH 53, Washburn, WI

Built 2022 Load: 38.2 t ADT: 1,350

CTH M (NORTH AVE)

Good

Over: UNDERWOOD CREEK

AT UNDERWOOD CREEK, Waukesha, WI

Built 2021 Load: 38.2 t ADT: 4,550

LRD CALHOUN ROAD

Good

Over: UNNAMED TRIBUTARY OF THE

0.4 MI N OF JCT NORTH AVE, Waukesha, WI

Built 2021 Load: 38.2 t ADT: 12,400

CTH E (BERLIN ST)

Good

Over: CRYSTAL RIVER

0.8M S JCT STH 22, Waupaca, WI

Built 2018 Load: 38.2 t ADT: 2,502

USH10-STH22/49/54E

Good

Over: CTH E

1.1M E JCT STH 22 TO S, Waupaca, WI

Built 2020 Load: 38.2 t ADT: 10,700

IH 41 NB

Good

Over: SOO LINE

4.8M N JCT USH 45 TO N, Winnebago, WI

Built 1975 Load: 38.2 t ADT: 39,350

IH 41 SB

Good

Over: SOO LINE

2.0M S JCT STH 114 TO E, Winnebago, WI

Built 1975 Load: 38.2 t ADT: 39,350

CTH E (WITZEL AVE

Good

Over: IH 41

AT USH 41, Winnebago, WI

Built 2010 Load: 38.2 t ADT: 16,400

IH 41NB TO 45NB RA

Good

Over: USH I41 & USH 45

IH 41/STH 45 INTERCHANGE, Winnebago, WI

Built 2012 Load: 38.2 t ADT: 7,800

LRD BELL RD

Good

Over: TEN MILE CREEK

2.2M S JCT STH 73, Wood, WI

Built 2012 Load: 38.2 t ADT: 101

LRD BADGERLAND DR.

Good

Over: BEAVER DAM CREEK

1.3M E JCT CTH J, Brown, WI

Built 2016 Load: 38.6 t ADT: 6,500

LRD BOWER CREEK RD

Good

Over: BOWER CREEK

0.3M S JCT CTH V, Brown, WI

Built 2016 Load: 38.6 t ADT: 1,200

IH 41 NB

Good

Over: STH 172 WB

OVER STH 172 WB, Brown, WI

Built 2015 Load: 38.6 t ADT: 41,600

IH 41 SB

Good

Over: STH 29/SHAWANO AVENUE

AT SHAWANO AVENUE, Brown, WI

Built 2014 Load: 38.6 t ADT: 41,250

LRD CTH EB (LAKEVI

Good

Over: USH 41

LAKEVIEW DR OVER US 41, Brown, WI

Built 2012 Load: 38.6 t ADT: 1,100

STH 35

Good

Over: MISSISSIPPI RIVER TRIBUT

0.9M N JCT STH 54 TO W, Buffalo, WI

Built 2023 Load: 38.6 t ADT: 5,500

CTH Z

Good

Over: ELK CREEK

0.2M W JCT CTH H, Buffalo, WI

Built 2017 Load: 38.6 t ADT: 325

LRD WEEKS ROAD

Good

Over: S. BRANCH MANITOWOC RIVE

0.2M N OF USH 151, Calumet, WI

Built 2019 Load: 38.6 t ADT: 280

CTH DD

Good

Over: TROUT CREEK

AT TROUT CREEK, Chippewa, WI

Built 2015 Load: 38.6 t ADT: 520

LRD FAIRVIEW AVENU

Good

Over: E FK HALLS CREEK

0.1M N JCT CTH B, Clark, WI

Built 2021 Load: 38.6 t ADT: 100

LRD CLARK ROAD

Good

Over: FOX RIVER

0.6M W JCT CTH F, Columbia, WI

Built 2014 Load: 38.6 t ADT: 532

CTH M

Good

Over: UNION PACIFIC RAILROAD

0.1 MI N JCT CTH E, Columbia, WI

Built 2016 Load: 38.6 t ADT: 161

LRD MARIETTA VALLE

Good

Over: WOODWARD HOLLOW CREEK

0.5M N JCT USH 61, Crawford, WI

Built 2021 Load: 38.6 t ADT: 100

LRD GRAN GRAE ROAD

Good

Over: GRAN GRAE CREEK

3.5M W JCT STH 60, Crawford, WI

Built 2023 Load: 38.6 t ADT: 100

USH 18 EB / USH 15

Good

Over: CTH PD / MCKEE ROAD

2 MI S JCT USH 12, Dane, WI

Built 2019 Load: 38.6 t ADT: 20,800

LRD WASHINGTON RD

Good

Over: ASHIPPUN RIVER

0.3M E JCT CTH P, Dodge, WI

Built 2016 Load: 38.6 t ADT: 350

LRD APPLE ROAD

Good

Over: SILVER CREEK

0.1 MI WEST OF JUNCTION W, Dodge, WI

Built 2022 Load: 38.6 t ADT: 100

STH 85

Good

Over: CRANBERRY CREEK

1.6M E JCT CTH O, Dunn, WI

Built 2010 Load: 38.6 t ADT: 2,900

IH 94 EB

Good

Over: CTH C

4.5M E JCT CTH EE TO N, Eau Claire, WI

Built 2012 Load: 38.6 t ADT: 13,850

IH 94 WB

Good

Over: CTH C

1.4M W JCT STH 37 TO N, Eau Claire, WI

Built 2012 Load: 38.6 t ADT: 13,850

CTH A

Good

Over: BR BLAKE FORK

1.7M E JCT STH 35, Grant, WI

Built 2010 Load: 38.6 t ADT: 288

CTH A

Good

Over: BR BLAKE FORK

0.9M S JCT CTH J, Grant, WI

Built 2010 Load: 38.6 t ADT: 288

CTH Q

Good

Over: FENNIMORE CREEK

3.8M W JCT CTH G, Grant, WI

Built 2022 Load: 38.6 t ADT: 820

CTH P

Good

Over: SPRING CR

1.0 M E JCT CTH HK, Green, WI

Built 2010 Load: 38.6 t ADT: 283

CTH G

Good

Over: PECATONICA RIVER

1.7M N JCT CTH X, Iowa, WI

Built 2019 Load: 38.6 t ADT: 220

CTH H

Good

Over: MILL CREEK

0.1M E JCT CTH T TO W, Iowa, WI

Built 2021 Load: 38.6 t ADT: 340

LRD POPLAR ST

Good

Over: MONTREAL RIVER

0.1M E JCT USH 51, Iron, WI

Built 2010 Load: 38.6 t ADT: 5,591

STH 19

Good

Over: MAUNESHA RIVER

0.3 MI W JCT STH 89, Jefferson, WI

Built 2017 Load: 38.6 t ADT: 5,100

STH 106

Good

Over: TRIBUTARY TO ROCK RIVER

500 FT E JCT FALK RD, Jefferson, WI

Built 2021 Load: 38.6 t ADT: 2,200

CTH A

Good

Over: BR LITTLE RIB RIVER

0.9M W JCT CTH O, Marathon, WI

Built 2010 Load: 38.6 t ADT: 994

STH 100-WB BROWN D

Good

Over: IH 43

0.1 MI W JCT CTH W, Milwaukee, WI

Built 2010 Load: 38.6 t ADT: 10,450

STH 119 EB-AIRPORT

Good

Over: LRD S 14TH ST

0.6 MI E JCT IH 94, Milwaukee, WI

Built 2012 Load: 38.6 t ADT: 10,200

STH 119 WB/AIRPORT

Good

Over: LRD S 14TH ST

1.2 MI W JCT STH 38, Milwaukee, WI

Built 2012 Load: 38.6 t ADT: 10,200

IH RAMP IH 41 NB/

Good

Over: LRD W SCHLINGER AVE

0.5 M N JCT STH 59, Milwaukee, WI

Built 2015 Load: 38.6 t ADT: 42,000

IH RAMP SW IH 894

Good

Over: IH 94

0.6 MI N JCT STH 59, Milwaukee, WI

Built 2015 Load: 38.6 t ADT: 24,600

Showing 10,901-10,950 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.