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

CTH W

Good

Over: BEAR CREEK OVERFLOW

1.9M S JCT STH 76, Outagamie, WI

Built 1991 Load: 42.1 t ADT: 266

LRD LIGHTNING DRIV

Good

Over: AAL TRIBUTARY

0.3M N OF USH 41, Outagamie, WI

Built 2001 Load: 42.1 t ADT: 1,396

LRD CENTER VALLEY

Good

Over: DUCK CREEK

0.1M E JCT CTH EE, Outagamie, WI

Built 2010 Load: 42.1 t ADT: 353

LRD COLLEGE AVE

Good

Over: FOX RIVER

1.2M E JCT USH 10, Outagamie, WI

Built 2009 Load: 42.1 t ADT: 34,155

CTH G

Good

Over: ARKANSAW CREEK

0.2M S JCT CTH Z, Pepin, WI

Built 1991 Load: 42.1 t ADT: 93

USH 10

Good

Over: EAU GALLE RIVER

0.5M E JCT CTH D, Pepin, WI

Built 1994 Load: 42.1 t ADT: 3,000

LRD KOTHBAUER RD

Good

Over: BEAR CREEK SWAMP INLET

0.3M N. JCT USH 10, Pepin, WI

Built 1999 Load: 42.1 t ADT: 54

LRD BYINGTON RD

Good

Over: LITTLE PLUM CR.

1/2 MI. SOUTH OF N, Pepin, WI

Built 2005 Load: 42.1 t ADT: 35

STH 35

Good

Over: WIND RIVER

1.7M N JCT CTH OO, Pierce, WI

Built 1971 Load: 42.1 t ADT: 2,700

LRD 690TH AVE

Good

Over: CAVE CREEK

0.8M E JCT CTH BB, Pierce, WI

Built 1996 Load: 42.1 t ADT: 93

CTH O

Good

Over: TRIMBELLE RIVER

0.9MI SOUTH OF USH 10, Pierce, WI

Built 2003 Load: 42.1 t ADT: 244

CTH B MCCAY AVE

Good

Over: BURGHARDT CREEK

0.1M N JCT STH 29, Pierce, WI

Built 2006 Load: 42.1 t ADT: 1,313

LRD 630TH AVE

Good

Over: BR EAU GALLE RIVER

0.1M N JCT STH 72, Pierce, WI

Built 2008 Load: 42.1 t ADT: 104

STH 65

Good

Over: APPLE RIVER

2.5M N JCT CTH C, Polk, WI

Built 1985 Load: 42.1 t ADT: 1,300

LRD 85TH STREET

Good

Over: BEAVER BROOK

0.7M W JCT CTH JJ, Polk, WI

Built 1992 Load: 42.1 t ADT: 954

LRD 280TH AVE (DEA

Good

Over: TRADE RIVER

0.3M W JCT CTH B, Polk, WI

Built 1996 Load: 42.1 t ADT: 10

CTH B

Good

Over: WISCONSIN CENTRAL RR

0.3M NE JCT USH 10, Portage, WI

Built 2006 Load: 42.1 t ADT: 1,243

CTH DD

Good

Over: WAUPACA RIVER

0.1M E JCT CTH D, Portage, WI

Built 2003 Load: 42.1 t ADT: 273

IH USH10 EB RAMP T

Good

Over: IH 39

5.25 MI E. JCT STH 34, Portage, WI

Built 2008 Load: 42.1 t ADT: 5,300

STH 13/34

Good

Over: CNRR

0.2M S OF USH10, Portage, WI

Built 2011 Load: 42.1 t ADT: 2,600

USH 10 WB

Good

Over: CTH G

1.0 MILES W OF CTH O, Portage, WI

Built 2011 Load: 42.1 t ADT: 7,300

CTH O

Good

Over: USH10

3.0 EAST JCT STH 34 TO SO, Portage, WI

Built 2010 Load: 42.1 t ADT: 250

LRD 95TH ST

Good

Over: BUENA VISTA CREEK

0.5M S JCT CTH FF, Portage, WI

Built 2022 Load: 42.1 t ADT: 100

LRD MORNER RD

Good

Over: DOUGLAS CREEK

1.3M W JCT CTH C, Price, WI

Built 1988 Load: 42.1 t ADT: 56

LRD TROUT RD

Good

Over: BUTTERNUT CREEK

0.1M S JCT CTH B, Price, WI

Built 1993 Load: 42.1 t ADT: 35

LRD HILLCREST RD

Good

Over: LITTLE ELK RIVER

1.1M N JCT CTH D, Price, WI

Built 1993 Load: 42.1 t ADT: 43

STH 11 EB

Good

Over: JW PETERS CONVEYOR

1.8 MI W JCT STH 83, Racine, WI

Built 2008 Load: 42.1 t ADT: 3,750

STH 11/STH 36 WB

Good

Over: JW PETERS CONVEYOR

1.8 MI W OF JCT STH 83, Racine, WI

Built 2008 Load: 42.1 t ADT: 3,750

LRD CUNNINGHAM LN

Good

Over: PINE RIVER

0.2M E JCT STH 80, Richland, WI

Built 1988 Load: 42.1 t ADT: 10

LRD HOOD HOLLOW LN

Good

Over: MILL CREEK

0.2M E JCT CTH E, Richland, WI

Built 1987 Load: 42.1 t ADT: 20

LRD GARDNERWALL LA

Good

Over: PINE RIVER

0.1M W JCT STH 80, Richland, WI

Built 1989 Load: 42.1 t ADT: 9

LRD MEADOWWOOD LAN

Good

Over: ASH CREEK

0.1M S JCT CTH TB, Richland, WI

Built 1990 Load: 42.1 t ADT: 10

LRD EXCELSIOR RD

Good

Over: KNAPP CREEK

0.4M E JCT CTH F, Richland, WI

Built 1991 Load: 42.1 t ADT: 56

LRD SPRING RD

Good

Over: WEST FORK KNAPPS CREEK

0.1M N JCT CTH S, Richland, WI

Built 1993 Load: 42.1 t ADT: 22

CTH U

Good

Over: JIM TOWN BRANCH

0.9M N JCT STH 171, Richland, WI

Built 1992 Load: 42.1 t ADT: 43

LRD QUARRY HILL DR

Good

Over: MILL CREEK

0.1M E JCT CTH E, Richland, WI

Built 1994 Load: 42.1 t ADT: 90

LRD TWO CREEK DR

Good

Over: TRIB. TO KNAPP CREEK

0.05M N JCT STH 171, Richland, WI

Built 1998 Load: 42.1 t ADT: 108

LRD COPPERNOLL HOL

Good

Over: W BR MILL CREEK

0.1M S JCT USH 14, Richland, WI

Built 2000 Load: 42.1 t ADT: 54

LRD JACKSON DR. (D

Good

Over: FOX HOLLOW CREEK

0.1M E JCT CTH Q, Richland, WI

Built 1998 Load: 42.1 t ADT: 1

STH 138

Good

Over: BADFISH CREEK

0.3M N JCT STH 59, Rock, WI

Built 1992 Load: 42.1 t ADT: 3,700

LRD RILEY RD

Good

Over: BADFISH CREEK

0.2M S JCT STH 59, Rock, WI

Built 1995 Load: 42.1 t ADT: 38

IH 39 NB/ IH 90 WB

Good

Over: LRD MILWAUKEE STREET

2.0M W JCT STH 11 TO E, Rock, WI

Built 2004 Load: 42.1 t ADT: 29,500

STH 11 WB

Good

Over: LRD S READ RD

0.8M W JCT IH 39/90, Rock, WI

Built 2004 Load: 42.1 t ADT: 7,900

STH 140

Good

Over: TURTLE CREEK

1.7M N JCT IH 43 TO N, Rock, WI

Built 2005 Load: 42.1 t ADT: 2,600

LRD JOHNSON DR

Good

Over: SOUTH BASS CR

3.7M N JCT STH 213, Rock, WI

Built 2003 Load: 42.1 t ADT: 275

CTH B

Good

Over: MIDDLE FORK OF MAIN CREE

1.2M N JCT CTH P-13, Rusk, WI

Built 2021 Load: 42.1 t ADT: 545

LRD LIBERTY ROAD

Good

Over: KINNICKINNIC RIVER

0.2M S JCT USH 65, St. Croix, WI

Built 1987 Load: 42.1 t ADT: 270

USH 12

Good

Over: CARR CREEK

0.1M E JCT CTH B, St. Croix, WI

Built 1996 Load: 42.1 t ADT: 1,700

LRD 110TH AVE

Good

Over: KINNICKINNIC RIVER

2.7M W JCT CTH T, St. Croix, WI

Built 1992 Load: 42.1 t ADT: 165

LRD 20TH AVE (DEAD

Good

Over: CADY CREEK

1.1M E JCT STH 128, St. Croix, WI

Built 1996 Load: 42.1 t ADT: 25

Showing 12,401-12,450 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.