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 64

Good

Over: BIG BEAVER CREEK

0.1M E JCT CTH O, Dunn, WI

Built 1997 Load: 42.1 t ADT: 1,100

CTH F

Good

Over: SOUTH FORK HAY RIVER

0.70 MILES NORTH OF STH 1, Dunn, WI

Built 2001 Load: 42.1 t ADT: 250

LRD JOPKE RD (DEAD

Good

Over: LOWES CREEK

0.4M W STH 37, Eau Claire, WI

Built 1989 Load: 42.1 t ADT: 100

LRD EAST RIVER ROA

Good

Over: WOLF RIVER

0.4M W CTH H, Eau Claire, WI

Built 1992 Load: 42.1 t ADT: 51

STH 37

Good

Over: HOYTS CREEK

0.2M N JCT CTH B, Eau Claire, WI

Built 1999 Load: 42.1 t ADT: 4,000

USH 12

Good

Over: USH 53

AT USH 53, Eau Claire, WI

Built 2005 Load: 42.1 t ADT: 24,300

STH RAMP STH 93

Good

Over: USH 53

AT USH 53, Eau Claire, WI

Built 2006 Load: 42.1 t ADT: 7,900

USH 53 S

Good

Over: LRD HASTINGS WAY

0.7M S JCT CTH HH, Eau Claire, WI

Built 2006 Load: 42.1 t ADT: 17,600

CTH D

Good

Over: BEAVER CREEK

0.8M W USH 53, Eau Claire, WI

Built 2008 Load: 42.1 t ADT: 871

USH 151 NB

Good

Over: IH 41

AT IH 41, Fond du Lac, WI

Built 2005 Load: 42.1 t ADT: 9,650

USH 151 SB

Good

Over: IH 41

AT IH 41, Fond du Lac, WI

Built 2004 Load: 42.1 t ADT: 9,050

LRD HICKORY ST

Good

Over: USH 151

AT US 151, Fond du Lac, WI

Built 2007 Load: 42.1 t ADT: 3,500

LRD MINNESOTA AVE

Good

Over: ANDERSON CREEK

1.2M E JCT CTH RP, Fond du Lac, WI

Built 2007 Load: 42.1 t ADT: 1,050

LRD BIG PLATTE RD

Good

Over: PLATTE RIVER

0.8M N JCT CTH O, Grant, WI

Built 1984 Load: 42.1 t ADT: 156

LRD CEMETERY RD

Good

Over: BLAKE FORK

3.6M E JCT STH 35, Grant, WI

Built 1984 Load: 42.1 t ADT: 102

LRD BAKER FORD RD

Good

Over: PLATTE RIVER

2.7M S JCT STH 81, Grant, WI

Built 1989 Load: 42.1 t ADT: 51

LRD MILLDAM RD

Good

Over: BR PLATTE RIVER

4.7M W JCT STH 80, Grant, WI

Built 1991 Load: 42.1 t ADT: 53

USH 61/151 SB-STH

Good

Over: CTH H

2.1M S JCT CTH HH TO E, Grant, WI

Built 1994 Load: 42.1 t ADT: 7,500

LRD BLUFF STREET

Good

Over: SAUNDERS CREEK

0.4M E JCT USH 61, Grant, WI

Built 1998 Load: 42.1 t ADT: 107

STH 133

Good

Over: MILL BRANCH

3.2M N JCT CTH Y, Grant, WI

Built 1993 Load: 42.1 t ADT: 950

LRD SCHILDGEN LANE

Good

Over: BLAKE FORK

1.9M N JCT STH 35, Grant, WI

Built 1993 Load: 42.1 t ADT: 50

LRD SPRING VALLEY

Good

Over: BIG ROCK BRANCH

1.4M S JCT CTH Q, Grant, WI

Built 1994 Load: 42.1 t ADT: 102

LRD KINGSFORD RD

Good

Over: PLATTE RIVER

1.3M N JCT STH 81, Grant, WI

Built 2001 Load: 42.1 t ADT: 107

LRD LOUISBERG RD

Good

Over: SINSINAWA RIVER

2.4M W JCT STH 80, Grant, WI

Built 2003 Load: 42.1 t ADT: 106

CTH O

Good

Over: TRIB OF PLATTE RIVER

1.3M E OF USH 61, Grant, WI

Built 2009 Load: 42.1 t ADT: 535

LRD DECATUR RD

Good

Over: SUGAR RIVER OVERFLOW

0.4M W JCT CTH E, Green, WI

Built 1990 Load: 42.1 t ADT: 158

LRD CADIZ SPRINGS

Good

Over: SKINNER CREEK

0.3M N JCT STH 11, Green, WI

Built 1992 Load: 42.1 t ADT: 105

STH 69

Good

Over: WITTENWYLER CREEK

4.9M N JCT CTH FF, Green, WI

Built 2018 Load: 42.1 t ADT: 6,300

LRD LAWSON DR

Good

Over: PUCHYAN RIVER

0.2M W JCT STH 49, Green Lake, WI

Built 2013 Load: 42.1 t ADT: 808

LRD RIVER FORK RD

Good

Over: PLEASANT VALLEY BR

0.4M N JCT STH 39, Iowa, WI

Built 1996 Load: 42.1 t ADT: 93

LRD BRUE RD

Good

Over: BLUE MOUNDS BRANCH

1.0M W JCT CTH A, Iowa, WI

Built 1994 Load: 42.1 t ADT: 104

LRD SURVEY ROAD

Good

Over: MINERAL POINT BR

0.1 M S JCT CTH CH, Iowa, WI

Built 1995 Load: 42.1 t ADT: 207

USH 151 SB

Good

Over: MINERAL POINT BRANCH

2.6M S JCT CTH O, Iowa, WI

Built 2003 Load: 42.1 t ADT: 5,850

USH NB USH 151

Good

Over: STH 39

1.2M N OF JCT CTH O, Iowa, WI

Built 2001 Load: 42.1 t ADT: 4,550

CTH XX

Good

Over: BR PECATONICA RIVER

0.4M N JCT CTH E, Iowa, WI

Built 2002 Load: 42.1 t ADT: 710

CTH K

Good

Over: W BR BLUE MOUNDS CREEK

1.8M N JCT CTH HH, Iowa, WI

Built 2003 Load: 42.1 t ADT: 1,800

LRD D ST

Good

Over: MORREY CREEK

0.2M E JCT STH 80, Iowa, WI

Built 2007 Load: 42.1 t ADT: 197

LRD NORWEGIAN HOLL

Good

Over: FLINT CREEK

1.0M S JCT CTH M, Iowa, WI

Built 2007 Load: 42.1 t ADT: 131

CTH H

Good

Over: TURTLE RIVER

4.5M N JCT USH 51, Iron, WI

Built 1996 Load: 42.1 t ADT: 537

CTH VV

Good

Over: WILSON CREEK

0.8M S JCT STH 54, Jackson, WI

Built 1994 Load: 42.1 t ADT: 510

IH 94 WB

Good

Over: LRD UNION ST

0.9M W JCT STH 26 TO N, Jefferson, WI

Built 1958 Load: 42.1 t ADT: 18,550

STH 19-W MADISON S

Good

Over: MAUNESHA RIVER

3.4M E JCT STH 73 TO N, Jefferson, WI

Built 1989 Load: 42.1 t ADT: 5,100

LRD WISCONSIN AVEN

Good

Over: STH 16

1.3M W OF CL ALONG STH 16, Jefferson, WI

Built 2005 Load: 42.1 t ADT: 4,130

CTH OLD CTH Y

Good

Over: TRIB TO ROCK RIVER

0.2 MI. SOUTH OF STH 26 O, Jefferson, WI

Built 2010 Load: 42.1 t ADT: 1,648

LRD 25TH ST WEST

Good

Over: LITTLE YELLOW RIVER

3.8M W JCT STH 80, Juneau, WI

Built 2005 Load: 42.1 t ADT: 105

LRD 9TH ST

Good

Over: SPENCER ROBINSON DITCH

1.0M W JCT STH 80, Juneau, WI

Built 2005 Load: 42.1 t ADT: 105

STH 32

Good

Over: PIKE RIVER

0.9 MI S JCT CTH E, Kenosha, WI

Built 2005 Load: 42.1 t ADT: 10,200

IH 41 NB/94 WB

Good

Over: DES PLAINES RIVER

1.7 MI N JCT STH 165, Kenosha, WI

Built 2010 Load: 42.1 t ADT: 49,450

LRD E RIVER RD

Good

Over: BR KEWAUNEE RIVER

0.3M E JCT CTH H, Kewaunee, WI

Built 1985 Load: 42.1 t ADT: 87

CTH S

Good

Over: STH 57

AT STH 57, Kewaunee, WI

Built 2005 Load: 42.1 t ADT: 1,000

Showing 12,301-12,350 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.