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-E

Good

Over: RUSH CREEK

1.1M W JCT STH 116, Winnebago, WI

Built 2002 Load: 37.3 t ADT: 2,152

USH 10 WB

Good

Over: LRD MARSH RD

2.2M W JCT USH 45 TO N, Winnebago, WI

Built 2003 Load: 37.3 t ADT: 10,550

LRD HICKORY AVE

Good

Over: USH 10 EB

TOWN OF CLAYTON, Winnebago, WI

Built 2002 Load: 37.3 t ADT: 730

LRD CTH II

Good

Over: USH 45

OVER USH 45, Winnebago, WI

Built 2002 Load: 37.3 t ADT: 2,200

LRD LONE ELM RD

Good

Over: VAN DYNE CREEK

0.3M E OF CTH R, Winnebago, WI

Built 2009 Load: 37.3 t ADT: 610

LRD NINTH AVENUE

Good

Over: IH 41

AT USH 41, Winnebago, WI

Built 2011 Load: 37.3 t ADT: 15,800

LRD OAK ST

Good

Over: FOX RIVER

0.2M E JCT STH 114, Winnebago, WI

Built 2006 Load: 37.3 t ADT: 8,100

LRD THIRD ST. (DEA

Good

Over: LAKE WINNEBAGO SLOUGH

0.6M E JCT STH 114, Winnebago, WI

Built 2016 Load: 37.3 t ADT: 290

IH USH 10 WB RAMP

Good

Over: IH 41

USH 10/IH 41 INTERCHANGE, Winnebago, WI

Built 2018 Load: 37.3 t ADT: 16,700

CTH-M (NORTH)

Good

Over: RAT RIVER

2.6M N JCT CR-II, Winnebago, WI

Built 1933 Load: 37.3 t ADT: 779

LRD BOWER ST

Good

Over: CAT CREEK

0.1M W JCT STH 80, Wood, WI

Built 1992 Load: 37.3 t ADT: 100

LRD YETTER RD

Good

Over: ROCKY RUN

0.8M W JCT CTH B, Wood, WI

Built 1992 Load: 37.3 t ADT: 40

LRD LUNDBERG RD

Good

Over: MOCCASIN CREEK

0.8M N JCT CTH F, Wood, WI

Built 1994 Load: 37.3 t ADT: 50

LRD TOWN RD WRED R

Good

Over: E BR YELLOW RIVER

0.3M N JCT CTH Y, Wood, WI

Built 1993 Load: 37.3 t ADT: 80

STH 13 NB

Good

Over: LRD PEACH AVE

0.45M S JCT STH 97, Wood, WI

Built 2003 Load: 37.3 t ADT: 10,300

STH 80

Good

Over: YELLOW RIVER

1.1M N JCT CTH N TO W, Wood, WI

Built 2000 Load: 37.3 t ADT: 2,700

CTH Z

Good

Over: TEN MILE CREEK

3.3M S JCT STH 73, Wood, WI

Built 2004 Load: 37.3 t ADT: 1,600

STH 186-CAMERON AV

Good

Over: HEMLOCK CREEK

2.9M N JCT STH 13, Wood, WI

Built 2004 Load: 37.3 t ADT: 2,000

LRD WASHINGTON AVE

Good

Over: BR BEAVER CREEK

1.4M S JCT USH 10, Wood, WI

Built 2003 Load: 37.3 t ADT: 378

LRD 48TH ST

Good

Over: BUENA VISTA CREEK

0.8M S JCT CTH W, Wood, WI

Built 2005 Load: 37.3 t ADT: 3,800

CTH B

Good

Over: ROCKY CREEK

0.9M S JCT CTH N, Wood, WI

Built 2006 Load: 37.3 t ADT: 370

USH 10

Good

Over: YELLOW RIVER

0.1M E JCT CTH B TO S, Wood, WI

Built 2008 Load: 37.3 t ADT: 3,500

CTH Q

Good

Over: ELM CREEK

1.3M E JCT CTH D, Wood, WI

Built 2010 Load: 37.3 t ADT: 1,230

CTH M

Good

Over: WEST BRANCH OF WOLF RIVE

0.02M N JCT STH 47, Menominee, WI

Built 2020 Load: 37.3 t ADT: 602

LRD 4TH STREET

Good

Over: SILVER CREEK

3.9M N JCT CTH A, Barron, WI

Built 1984 Load: 37.3 t ADT: 47

LRD 50TH AVENUE

Good

Over: ELK CREEK

0.4 M E 20TH STREET, Chippewa, WI

Built 1977 Load: 37.3 t ADT: 165

LRD N. POLE RD.

Good

Over: E BR ROCK RIVER

0.3M S JCT CTH DD, Dodge, WI

Built 1975 Load: 37.3 t ADT: 94

CTH II

Good

Over: LOWES CREEK

0.5M W STH 93, Eau Claire, WI

Built 1990 Load: 37.3 t ADT: 1,896

LRD POND RD

Good

Over: SCHOOLHOUSE CREEK

0.6M E CTH H, Eau Claire, WI

Built 1914 Load: 37.3 t ADT: 153

CTH YY

Good

Over: SCHOOLHOUSE CREEK

0.1M N USH 10, Eau Claire, WI

Built 1930 Load: 37.3 t ADT: 563

LRD S NATIONAL AVE

Good

Over: DENEVEU CREEK

0.4M S JCT CTH T 1.2 M W, Fond du Lac, WI

Built 1989 Load: 37.3 t ADT: 3,300

LRD BLUE SCHOOL RD

Good

Over: FENNIMORE CREEK

0.1M E JCT CTH Q, Grant, WI

Built 1972 Load: 37.3 t ADT: 53

CTH OA

Good

Over: GARBERS COULEE CREEK

0.4M S JCT CTH O, La Crosse, WI

Built 1976 Load: 37.3 t ADT: 2,200

LRD FURNACE HILL R

Good

Over: BR OTTER CREEK

1.6M N JCT CTH G, Lafayette, WI

Built 1958 Load: 37.3 t ADT: 47

CTH K

Good

Over: BRANCH RIVER

0.8M E JCT CTH G, Manitowoc, WI

Built 1956 Load: 37.3 t ADT: 930

LRD WB W BURLEIGH

Good

Over: MENOMONEE RIVER

0.6M E JCT STH 100, Milwaukee, WI

Built 1966 Load: 37.3 t ADT: 17,500

LRD MARKET RD

Good

Over: LITTLE LA CROSSE RIVER

0.1M S JCT STH 27, Monroe, WI

Built 1984 Load: 37.3 t ADT: 23

LRD LAWE ST

Good

Over: POWER CANAL

1.2M S JCT STH 96, Outagamie, WI

Built 1970 Load: 37.3 t ADT: 5,800

LRD WILLIAMSBURG D

Good

Over: PIGEON CREEK

0.4M W JCT STH 57, Ozaukee, WI

Built 1973 Load: 37.3 t ADT: 235

CTH N

Good

Over: LOST CREEK

0.7M W JCT USH 63, Pierce, WI

Built 1988 Load: 37.3 t ADT: 494

LRD 590TH ST

Good

Over: S FK LOST CREEK

0.9M N JCT USH 63, Pierce, WI

Built 1988 Load: 37.3 t ADT: 16

LRD SEVEN MILE RD

Good

Over: ROOT RIVER

1.9M E JCT STH 38, Racine, WI

Built 1962 Load: 37.3 t ADT: 1,700

LRD RUSTIC RD R4

Good

Over: BLUE CREEK

0.2M E JCT STH 128, St. Croix, WI

Built 1984 Load: 37.3 t ADT: 28

LRD 155TH AVE (DEA

Good

Over: BR HUTTON CREEK

0.2M W JCT CTH D, St. Croix, WI

Built 1990 Load: 37.3 t ADT: 25

LRD BLOCK ROAD (DE

Good

Over: E BR HONEY CREEK

1.1M S JCT CTH PF, Sauk, WI

Built 1987 Load: 37.3 t ADT: 24

IRR BIA RTE 1010

Good

Over: BEAR RIVER

17KM N OF LAC DU FLAMBEAU, Iron, WI

Built 2004 Load: 37.5 t ADT: 50

IRR BIA RTE 10

Good

Over: FLAMBEAU BEAR RIVER

13KM N OF LAC DU FLAMBEAU, Iron, WI

Built 1996 Load: 37.6 t ADT: 50

IRR BIA RTE 1022

Good

Over: RED RIVER

16KM NW OF GRESHEM, Shawano, WI

Built 2003 Load: 37.6 t ADT: 250

IRR BIA RTE 24

Good

Over: WEST BRANCH WOLF RIVER

10 KM NW OF KESHENA, Menominee, WI

Built 2005 Load: 37.6 t ADT: 106

IRR BIA RTE 106

Good

Over: WEST BANK OF WOLF RIVER

14 KM NW OF KESHENA, Menominee, WI

Built 2005 Load: 37.6 t ADT: 106

Showing 10,751-10,800 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.