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 28TH ST

Good

Over: MOOSE EAR CREEK

0.3M N JCT CTH D, Barron, WI

Built 2001 Load: 40.5 t ADT: 107

CTH A

Good

Over: TILLER CREEK

0.6M E JCT CTH I TO S, Barron, WI

Built 2001 Load: 40.5 t ADT: 397

LRD 24TH ST NORTH

Good

Over: GREGARSON SLOUGH

1.3M W JCT CTH M, Barron, WI

Built 1999 Load: 40.5 t ADT: 108

LRD 29TH AVENUE

Good

Over: BRILL RIVER

1.3M E JCT CTH M, Barron, WI

Built 2006 Load: 40.5 t ADT: 105

USH 63

Good

Over: NAMEKAGON RIVER

5.4M N JCT CTH OO, Bayfield, WI

Built 1966 Load: 40.5 t ADT: 2,900

LRD KAUKAMO RD

Good

Over: MUSKEG CREEK

3.2M N JCT CTH B, Bayfield, WI

Built 1984 Load: 40.5 t ADT: 104

LRD ONDOSSAGON RD

Good

Over: WHITTLESEY CREEK

0.8M W JCT STH 13, Bayfield, WI

Built 1991 Load: 40.5 t ADT: 56

STH 13

Good

Over: KINNEY CREEK

0.7M N JCT CTH A, Bayfield, WI

Built 2004 Load: 40.5 t ADT: 630

STH 13

Good

Over: LARSON CREEK

0.3 M N JCT CTH A, Bayfield, WI

Built 2004 Load: 40.5 t ADT: 1,400

LRD COUNTY LINE RD

Good

Over: BRANCH RIVER

0.6M E JCT CTH G, Brown, WI

Built 1989 Load: 40.5 t ADT: 119

LRD MORROW ST

Good

Over: BAIRD CREEK

0.8M E JCT STH 29, Brown, WI

Built 1992 Load: 40.5 t ADT: 2,000

LRD CTH P

Good

Over: LRD BADER RD

0.1MI S.OF STH 57, Brown, WI

Built 2005 Load: 40.5 t ADT: 1,400

IH I41 NB OFF RAMP

Good

Over: ASHWAUBENON CREEK

AT ASHWAUBENON CREEK, Brown, WI

Built 2011 Load: 40.5 t ADT: 3,100

CTH NN

Good

Over: HUTCHINSON CREEK

4.7M W JCT STH 88, Buffalo, WI

Built 1988 Load: 40.5 t ADT: 108

STH 35

Good

Over: CHIPPEWA RIVER 01

2.6M N JCT STH 25 TO N, Buffalo, WI

Built 1994 Load: 40.5 t ADT: 2,300

LRD BOLAND VALLEY

Good

Over: BOLAND VALLEY CREEK

0.2M N JCT STH 95, Buffalo, WI

Built 2001 Load: 40.5 t ADT: 86

LRD REISCH VALLEY

Good

Over: FIMIAN CREEK

0.2M S JCT CTH S, Buffalo, WI

Built 2002 Load: 40.5 t ADT: 31

LRD BRANDHORST RD

Good

Over: BR TREMPEALEAU RIVER

2.3M N JCT CTH M, Buffalo, WI

Built 2002 Load: 40.5 t ADT: 139

CTH J

Good

Over: TAMARACK CREEK

0.5M N JCT CTH D, Buffalo, WI

Built 2005 Load: 40.5 t ADT: 136

LRD ROSE VALLEY RO

Good

Over: ROSE VALLEY CREEK

1.6M E OF JCT CTH N, Buffalo, WI

Built 2003 Load: 40.5 t ADT: 52

STH 25

Good

Over: MISSISSIPPI RIVER SLOUGH

0.4M N MINN STATE LINE, Buffalo, WI

Built 2009 Load: 40.5 t ADT: 4,500

STH 25

Good

Over: MISSISSIPPI RIVER SLOUGH

1.1M N MINN STATE LINE, Buffalo, WI

Built 2010 Load: 40.5 t ADT: 4,500

LRD GONTY RD

Good

Over: ROSSMAN CREEK

0.7M W JCT CTH Y, Buffalo, WI

Built 2009 Load: 40.5 t ADT: 103

STH 48-STH 87

Good

Over: CANUTE CREEK

3.6M E JCT STH 70, Burnett, WI

Built 2002 Load: 40.5 t ADT: 2,100

STH 441 NB

Good

Over: LRD LAKE PARK ROAD

2.1M N JCT USH 10, Calumet, WI

Built 1993 Load: 40.5 t ADT: 19,350

STH 441 SB

Good

Over: LRD LAKE PARK ROAD

0.5M S JCT CTH KK, Calumet, WI

Built 1993 Load: 40.5 t ADT: 22,250

CTH X

Good

Over: TROUT CREEK

4.3 M E CTH F, Chippewa, WI

Built 2001 Load: 40.5 t ADT: 7,175

STH 29 EB

Good

Over: LRD 190TH ST.

2.2M E JCT CTH J, Chippewa, WI

Built 1993 Load: 40.5 t ADT: 9,350

LRD 125TH STREET

Good

Over: MCCANN CREEK

0.3 M N STH 64, Chippewa, WI

Built 1994 Load: 40.5 t ADT: 75

LRD 118TH AVENUE

Good

Over: DUNCAN CREEK

0.2 M NE CTH Q, Chippewa, WI

Built 1997 Load: 40.5 t ADT: 330

CTH V

Good

Over: HAY CREEK

0.2 M E CTH D, Chippewa, WI

Built 1997 Load: 40.5 t ADT: 410

LRD MAIN STREET

Good

Over: DRAINAGE DITCH

1.0 M N CTH SS, Chippewa, WI

Built 1999 Load: 40.5 t ADT: 5,420

LRD 50TH AVE

Good

Over: STH 29

TOWN OF HALLIE, Chippewa, WI

Built 2002 Load: 40.5 t ADT: 1,500

CTH OO

Good

Over: USH 53

TOWN OF HALLIE, Chippewa, WI

Built 2002 Load: 40.5 t ADT: 12,700

LRD 178TH AV(NORTH

Good

Over: TROUT CREEK

0.1 M E 10TH AVE(AUBURN R, Chippewa, WI

Built 1998 Load: 40.5 t ADT: 110

LRD 10TH ST.(AUBUR

Good

Over: TROUT CREEK

0.1 M N 178TH AV(NORTHSID, Chippewa, WI

Built 1997 Load: 40.5 t ADT: 115

STH 64

Good

Over: MCCANN CREEK

1.0M E JCT STH 40 TO N, Chippewa, WI

Built 2009 Load: 40.5 t ADT: 3,600

LRD CARDINAL AVE

Good

Over: BR NELSON CREEK

3.2M S JCT CTH N, Clark, WI

Built 1994 Load: 40.5 t ADT: 105

LRD CARDINAL AVE

Good

Over: N BR ONEILL CREEK

1.8M N JCT USH 10, Clark, WI

Built 1991 Load: 40.5 t ADT: 56

LRD MERIDIAN RD

Good

Over: ROCK CREEK

0.7M S JCT STH 98, Clark, WI

Built 1992 Load: 40.5 t ADT: 34

LRD SAND HILL AVE

Good

Over: S. FK. POPPLE RIVER

0.7M S JCT CTH Q, Clark, WI

Built 1997 Load: 40.5 t ADT: 58

LRD FAIRGROUND AVE

Good

Over: ROCK CREEK

3.6M S JCT STH 95, Clark, WI

Built 1998 Load: 40.5 t ADT: 15

STH 29 WB-STH 73 N

Good

Over: S FK EAU CLAIRE RIVER

2.8M W JCT CTH O, Clark, WI

Built 1995 Load: 40.5 t ADT: 5,700

STH 29 EB-STH 73 S

Good

Over: S FK EAU CLAIRE RIVER

4.3M E JCT STH 73 TO N, Clark, WI

Built 1995 Load: 40.5 t ADT: 5,700

STH 29 WB

Good

Over: N. FRK POPPLE RIVER

1.2M E JCT CTH X, Clark, WI

Built 1997 Load: 40.5 t ADT: 6,350

STH 29 W

Good

Over: DILL CREEK

2.6M W JCT STH 13, Clark, WI

Built 1997 Load: 40.5 t ADT: 6,600

LRD OWEN AVE

Good

Over: ROCK CREEK

2.5M N JCT STH 98, Clark, WI

Built 2019 Load: 40.5 t ADT: 100

LRD EDDY ROAD

Good

Over: E. FK. POPPLE RIVER

1.7M E JCT CTH E, Clark, WI

Built 2008 Load: 40.5 t ADT: 104

USH 151 SB

Good

Over: LRD MAPLE AVE

0.8M S JCT STH 16 TO E, Columbia, WI

Built 1976 Load: 40.5 t ADT: 11,350

IH 39

Good

Over: STH 78

0.5M S JCT STH 78 TO S, Columbia, WI

Built 1993 Load: 40.5 t ADT: 10,300

Showing 11,701-11,750 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.