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

LRD FACTORYROAD

Good

Over: BR OTTER CREEK

0.1M E JCT CTH II, Iowa, WI

Built 1985 Load: 32.4 t ADT: 112

STH 133

Good

Over: TRIB OF WISCONSIN RIVER

4.9M N JCT STH 80S, Iowa, WI

Built 1999 Load: 32.4 t ADT: 1,200

STH 133

Good

Over: TRIB OF WISCONSIN RIVER

0.2 MI. S OF BIGELOW RD., Iowa, WI

Built 1999 Load: 32.4 t ADT: 1,200

CTH CH

Good

Over: MINERAL POINT BRANCH

1.9M W JCT STH 23, Iowa, WI

Built 2000 Load: 32.4 t ADT: 610

STH 80

Good

Over: UNDERWOOD CREEK

1.2M N JCT CTH P TO W, Iowa, WI

Built 2002 Load: 32.4 t ADT: 320

CTH X

Good

Over: LIVINGSTON BRANCH

0.8 M E JCT STH 80, Iowa, WI

Built 2016 Load: 32.4 t ADT: 330

LRD MERRY CHRISTMA

Good

Over: UNNAMED TRIBUTARY TO BRE

0.1 M N JCT STH 39, Iowa, WI

Built 2016 Load: 32.4 t ADT: 500

LRD CLYDE ROAD

Good

Over: TRIB TO OTTER CREEK

1.4 M E JCT STH 130, Iowa, WI

Built 2015 Load: 32.4 t ADT: 150

STH 191

Good

Over: DRAINAGE WAY

386 W OF LONG VALLEY RD., Iowa, WI

Built 2019 Load: 32.4 t ADT: 1,200

STH 191

Good

Over: DRAINAGE WAY

2.0 MI. E OF STH 23, Iowa, WI

Built 2019 Load: 32.4 t ADT: 1,200

STH 122

Good

Over: LAWRENCE CR

7.8 M N JCT CTH E, Iron, WI

Built 2011 Load: 32.4 t ADT: 280

CTH V

Good

Over: WILSON CREEK

0.5M N JCT STH 54, Jackson, WI

Built 1992 Load: 32.4 t ADT: 290

LRD SOUTH CEMETERY

Good

Over: MOLLIES CREEK

3.3M N JCT STH 54, Jackson, WI

Built 1993 Load: 32.4 t ADT: 281

CTH C

Good

Over: N FK BEAVER CREEK

0.2M E JCT CTH N, Jackson, WI

Built 1997 Load: 32.4 t ADT: 380

CTH F

Good

Over: AMO

2.5 M S JCT STH 95, Jackson, WI

Built 2006 Load: 32.4 t ADT: 1,100

LRD ROCKVALE RD

Good

Over: BR ROCK RIVER

2.2M W JCT CTH P, Jefferson, WI

Built 1982 Load: 32.4 t ADT: 240

STH 106

Good

Over: SCUPPERNONG RIVER

2.7M E JCT CTH CI, Jefferson, WI

Built 1989 Load: 32.4 t ADT: 1,500

LRD LAKE DOROTHY L

Good

Over: JOHNSON CREEK

0.2M N JCT CTH B, Jefferson, WI

Built 1994 Load: 32.4 t ADT: 23

CTH Y

Good

Over: JOHNSON CREEK

0.2M S JCT STH 26, Jefferson, WI

Built 1993 Load: 32.4 t ADT: 1,700

LRD SWITZKE RD

Good

Over: JOHNSON CREEK

3.0M S JCT CTH B, Jefferson, WI

Built 1999 Load: 32.4 t ADT: 125

STH 106

Good

Over: ROCK RIVER

1.1M E JCT USH 12, Jefferson, WI

Built 2007 Load: 32.4 t ADT: 4,100

IH 90 WB-IH 94 WB

Good

Over: SEVEN MILE CREEK

6.8M W JCT CTH HH TO N, Juneau, WI

Built 1964 Load: 32.4 t ADT: 17,350

STH 82

Good

Over: CLEAVER CREEK

1.0M E JCT STH 80 TO N, Juneau, WI

Built 1986 Load: 32.4 t ADT: 3,500

STH 82

Good

Over: TRIB CLEAVER CREEK

1.6M E JCT STH 80 TO N, Juneau, WI

Built 1986 Load: 32.4 t ADT: 3,500

CTH A

Good

Over: FOUNTAIN CREEK

0.5M E JCT CTH H, Juneau, WI

Built 1987 Load: 32.4 t ADT: 890

STH 58-STH 82-UNIO

Good

Over: LEMONWEIR RIVER

0.1M N JCT USH 12 TO E, Juneau, WI

Built 1987 Load: 32.4 t ADT: 1,600

STH 58

Good

Over: LITTLE YELLOW RIVER

0.8M N JCT CTH A, Juneau, WI

Built 1990 Load: 32.4 t ADT: 3,800

LRD 7TH AVE

Good

Over: DANIELSON LATERAL

6.1M W JCT STH 80, Juneau, WI

Built 1991 Load: 32.4 t ADT: 23

STH 33-STATE BIKE

Good

Over: DRAINAGE WAY

0.1M W OF E JCT CTH G, Juneau, WI

Built 2002 Load: 32.4 t ADT: 2,700

CTH H

Good

Over: CTH C/CPRS RR

0.1 MI S. JCT USH 12, Juneau, WI

Built 2004 Load: 32.4 t ADT: 1,779

STH 80

Good

Over: WEBSTER CR

0.2M S CTH B, Juneau, WI

Built 2005 Load: 32.4 t ADT: 1,600

CTH F

Good

Over: OVERFLOW OF YELLOW RIVER

0.1 MI W OF 11TH AVE, Juneau, WI

Built 2011 Load: 32.4 t ADT: 114

LRD WRIGHT STREET

Good

Over: LYNDON CREEK

0.1 MI E JCT CTH HH, Juneau, WI

Built 2011 Load: 32.4 t ADT: 25

CTH B

Good

Over: WEBSTER CREEK

0.1 MI E JCT STH 80, Juneau, WI

Built 2012 Load: 32.4 t ADT: 574

CTH O

Good

Over: STEWART CREEK

1 MI W JCT STH 58, Juneau, WI

Built 2022 Load: 32.4 t ADT: 540

STH 50 WB-STH 83 N

Good

Over: SOO LINE RR

1.8M W JCT CTH B, Kenosha, WI

Built 1989 Load: 32.4 t ADT: 8,950

STH 50

Good

Over: STRAWBERRY CREEK

0.5 MI E JCT CTH MB, Kenosha, WI

Built 1989 Load: 32.4 t ADT: 18,400

CTH K

Good

Over: BRIGHTON CREEK

0.9M W JCT USH 45, Kenosha, WI

Built 1990 Load: 32.4 t ADT: 4,400

STH 165 EB

Good

Over: IH 41/94

0.9 MI E JCT CTH U, Kenosha, WI

Built 1992 Load: 32.4 t ADT: 11,250

STH 165 WB

Good

Over: IH 41/94

2.1 MI W JCT CTH H, Kenosha, WI

Built 1992 Load: 32.4 t ADT: 11,250

IH 41 SB/94 EB

Good

Over: CTH K

0.5 MI S JCT STH 158, Kenosha, WI

Built 2012 Load: 32.4 t ADT: 50,500

CTH N/38TH STREET

Good

Over: ROOT RIVER

AT ROOT RIVER, Kenosha, WI

Built 2021 Load: 32.4 t ADT: 2,570

STH 42/MAIN ST

Good

Over: AHNAPEE TRAIL

0.7M N JCT STH 29 TO W, Kewaunee, WI

Built 1977 Load: 32.4 t ADT: 5,700

STH 54

Good

Over: BR SCHOOL CREEK

1.5M E JCT CTH H, Kewaunee, WI

Built 1981 Load: 32.4 t ADT: 7,800

STH 54

Good

Over: LUXEMBURG CREEK

0.6M E JCT STH 163, Kewaunee, WI

Built 1981 Load: 32.4 t ADT: 7,400

STH 54

Good

Over: BR KEWAUNEE RIVER

3.2M E JCT CTH AB, Kewaunee, WI

Built 1982 Load: 32.4 t ADT: 5,300

CTH AB

Good

Over: N BR E TWIN RIVER

0.4M N JCT CTH BB, Kewaunee, WI

Built 1986 Load: 32.4 t ADT: 1,100

LRD LAKEVIEW RD

Good

Over: SANDY BAY CREEK

0.5M S JCT STH 42, Kewaunee, WI

Built 1986 Load: 32.4 t ADT: 91

STH 54

Good

Over: SCHOOL CREEK

1.9M E JCT CTH P TO N, Kewaunee, WI

Built 1997 Load: 32.4 t ADT: 7,800

STH 54

Good

Over: SCHOOL CREEK

TOWN OF LUXEMBURG, Kewaunee, WI

Built 1997 Load: 32.4 t ADT: 7,800

Showing 7,401-7,450 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.