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 RIVER RUN RD

Good

Over: WILD CREEK

0.7M E JCT STH 97, Marathon, WI

Built 1991 Load: 32.4 t ADT: 50

LRD PLEASENT RD

Good

Over: SAMPSON CREEK

0.9M S JCT CTH X, Marathon, WI

Built 1988 Load: 32.4 t ADT: 50

LRD LOCKER RD

Good

Over: PEPLIN CREEK

2.3M W JCT CTH X, Marathon, WI

Built 2023 Load: 32.4 t ADT: 118

LRD CREEK RD

Good

Over: SAMPSON CREEK

1.5M S JCT CTH X, Marathon, WI

Built 2023 Load: 32.4 t ADT: 52

LRD DAM RD (DEAD E

Good

Over: BEECHER LAKE

0.2M W JCT USH 141, Marinette, WI

Built 1986 Load: 32.4 t ADT: 75

LRD S 112TH ST

Good

Over: WILDCAT CREEK

0.3M S JCT CTH "T", Milwaukee, WI

Built 1990 Load: 32.4 t ADT: 1,600

LRD LAKE PARK DR

Good

Over: DRAINAGE RAVINE

0.1M E JCT STH 32, Milwaukee, WI

Built 1896 Load: 32.4 t ADT: 58

LRD S 29TH ST

Good

Over: KINNICKINNIC RIVER

0.5M S JCT STH 24, Milwaukee, WI

Built 1961 Load: 32.4 t ADT: 1,424

LRD W MORGAN AVE

Good

Over: HONEY CREEK

0.9M W JCT STH 24, Milwaukee, WI

Built 1954 Load: 32.4 t ADT: 4,800

LRD WOOLWORTH AVEN

Good

Over: LINCOLN CR

0.1M S JCT CTH S, Milwaukee, WI

Built 2001 Load: 32.4 t ADT: 322

LRD 51ST ST

Good

Over: LINCOLN CREEK

0.1M S JCT CTH S, Milwaukee, WI

Built 2000 Load: 32.4 t ADT: 560

LRD W GREEN TREE R

Good

Over: LINCOLN CR

0.5M W JCT CTH G, Milwaukee, WI

Built 2000 Load: 32.4 t ADT: 2,600

LRD W DREXEL AVE

Good

Over: ROOT RIVER

0.8M E JCT CTH U, Milwaukee, WI

Built 1950 Load: 32.4 t ADT: 7,500

LRD W OAKWOOD RD

Good

Over: ROOT RIVER

0.7M E JCT CTH U, Milwaukee, WI

Built 1940 Load: 32.4 t ADT: 1,200

LRD S 51ST ST

Good

Over: BR ROOT RIVER

1.1M S JCT CTH BB, Milwaukee, WI

Built 1936 Load: 32.4 t ADT: 4,900

LRD W OKLAHOMA AVE

Good

Over: BR KINNICKINNIC RIVER

0.2M W JCT STH 241, Milwaukee, WI

Built 1972 Load: 32.4 t ADT: 16,500

LRD WEST EUCLID AV

Good

Over: KINNICKINNIC RIVER

.2M W 30TH ST., Milwaukee, WI

Built 1972 Load: 32.4 t ADT: 607

LRD W WATERFORD AV

Good

Over: WILDCAT CREEK

0.2M NW JCT CTH "T", Milwaukee, WI

Built 1988 Load: 32.4 t ADT: 107

LRD WEST LAPHAM ST

Good

Over: DRAINAGE DITCH

JCT W LAPHAM & S 113TH, Milwaukee, WI

Built 1987 Load: 32.4 t ADT: 107

LRD CARDINAL RD

Good

Over: SPENCER CREEK

0.9M W JCT STH 27, Monroe, WI

Built 1981 Load: 32.4 t ADT: 47

CTH H

Good

Over: ONEIDA CREEK

0.5M S JCT STH 54, Outagamie, WI

Built 1995 Load: 32.4 t ADT: 1,100

LRD S. WISCONSIN S

Good

Over: MINERAL SPRING CR OVERFL

0.1M S OF CHESTNUT ROAD, Ozaukee, WI

Built 2002 Load: 32.4 t ADT: 216

S. WISCONSIN STREE

Good

Over: SAUK CREEK TRIBUTARY

.05 MI S. OF CHESTNUT, Ozaukee, WI

Built 1986 Load: 32.4 t ADT: 1

LRD 570TH AVE

Good

Over: BR BIG R (DRY RUN)

0.1 MILE E OF JCT OF CTH, Pierce, WI

Built 2004 Load: 32.4 t ADT: 53

LRD 1000TH ST

Good

Over: BR BIG R (DRY RUN)

0.5 M N OF JCT 570TH AVE, Pierce, WI

Built 2005 Load: 32.4 t ADT: 420

CTH QQ

Good

Over: BR KINNICKINNIC RIVER

0.2M N JCT CTH MM, Pierce, WI

Built 1983 Load: 32.4 t ADT: 116

LRD 855TH AVE (DEA

Good

Over: TRIMBELLE RIVER

0.1M W JCT CTH W, Pierce, WI

Built 1989 Load: 32.4 t ADT: 5

LRD EAST RIVER RD-

Good

Over: BR RUSH RIVER

0.4M S JCT CTH A, Pierce, WI

Built 1991 Load: 32.4 t ADT: 225

LRD 820TH STREET

Good

Over: BR TRIMBELLE RIVER

0.7M W JCT STH 65, Pierce, WI

Built 1992 Load: 32.4 t ADT: 233

LRD FIRST STREET

Good

Over: TOMORROW RIVER

0.1M E JCT STH 161, Portage, WI

Built 1988 Load: 32.4 t ADT: 900

LRD CAMPUS DR

Good

Over: WIND POINT CREEK

0.3M E JCT CTH G, Racine, WI

Built 1970 Load: 32.4 t ADT: 58

LRD HOPKINS ROAD

Good

Over: TRIB. TO SUGAR RIVER

0.5M S JCT BELOIT RD, Rock, WI

Built 2003 Load: 32.4 t ADT: 107

LRD NORTH TOWN LIN

Good

Over: TRIB. TO WILLOW CREEK

2.7M E. JCT CTH T, Rock, WI

Built 2003 Load: 32.4 t ADT: 107

CTH YY

Good

Over: BR RUSH RIVER

0.7M W JCT USH 63, St. Croix, WI

Built 1983 Load: 32.4 t ADT: 200

LRD RUSTIC RD R3

Good

Over: BLUE CREEK

0.1M S JCT STH 128, St. Croix, WI

Built 1973 Load: 32.4 t ADT: 269

LRD MC CAARVILLE R

Good

Over: BR BEAR CREEK

0.7M N JCT CTH N, Sauk, WI

Built 2003 Load: 32.4 t ADT: 48

CTH S

Good

Over: TEAL RIVER

4.0M S. STH 77, Sawyer, WI

Built 1925 Load: 32.4 t ADT: 54

LRD WINKLE RD

Good

Over: MILL CREEK

0.8M E JCT CTH G, Shawano, WI

Built 1985 Load: 32.4 t ADT: 103

LRD APPLE AVE

Good

Over: PINE CREEK

3.5M W JCT STH13, Taylor, WI

Built 2000 Load: 32.4 t ADT: 135

LRD PROGRESS DRIVE

Good

Over: QUAAS CREEK

0.8M E JCT CTH P, Washington, WI

Built 1990 Load: 32.4 t ADT: 168

LRD JAMES DR

Good

Over: DEER CREEK

0.1M N JCT RYERSON RD, Waukesha, WI

Built 1983 Load: 32.4 t ADT: 29

CTH D (CLEVELAND A

Good

Over: DEER CREEK

0.1M W JCT CTH O, Waukesha, WI

Built 1959 Load: 32.4 t ADT: 13,100

LRD SHAMROCK LANE

Good

Over: BUTLER DITCH

0.7M N JCT STH 190, Waukesha, WI

Built 1988 Load: 32.4 t ADT: 562

LRD BLACKHAWK DR

Good

Over: CANAL

.25 MIL W OF SAND BEACH D, Waukesha, WI

Built 1981 Load: 32.4 t ADT: 94

LRD CENTER DRIVE

Good

Over: MILL BROOK

0.4M N JCT CTH ES, Waukesha, WI

Built 1990 Load: 32.4 t ADT: 510

LRD COMET RD (DEAD

Good

Over: COMET CREEK

5.7M N JCT CTH C, Waupaca, WI

Built 1928 Load: 32.4 t ADT: 8

CTH G

Good

Over: S BR LITTLE WOLF RIVER

2.3M N JCT CTH B, Waupaca, WI

Built 1890 Load: 32.4 t ADT: 597

LRD ZABEL RD

Good

Over: HATTON CREEK

1.4M S JCT CTH X, Waupaca, WI

Built 1907 Load: 32.4 t ADT: 55

LRD MILL ST

Good

Over: S BR LITTLE WOLF RIVER

0.1M W JCT STH 49, Waupaca, WI

Built 1900 Load: 32.4 t ADT: 341

LRD BROWN ROAD

Good

Over: MOSQUITO CREEK

TOWN OF FREMONT, Waupaca, WI

Built 2000 Load: 32.4 t ADT: 251

Showing 8,051-8,100 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.