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 76

Good

Over: BEAR CREEK

2.6M N JCT CTH F, Outagamie, WI

Built 2008 Load: 53.5 t ADT: 1,200

LRD FOX ISLE DR

Good

Over: FOX R

0.1MI N OF STH 20, Racine, WI

Built 2007 Load: 53.5 t ADT: 532

LRD N MILL HOLLOW

Good

Over: MILL CREEK

2.1M N JCT CTH E, Richland, WI

Built 1994 Load: 53.5 t ADT: 44

LRD SUNDLING RD

Good

Over: BRUNET RIVER

0.2M E JCT STH 70, Sawyer, WI

Built 2008 Load: 53.5 t ADT: 20

STH 29 EB

Good

Over: LRD PORTER ROAD

3.8M E JCT CTH T, Shawano, WI

Built 1997 Load: 53.5 t ADT: 7,350

USH 45 NB

Good

Over: ARROWHEAD R

2.1 MI N OF CTH G, Winnebago, WI

Built 2008 Load: 53.5 t ADT: 7,600

CTH ML

Good

Over: IH 41/94

2.0M W JCT CTH H, Kenosha, WI

Built 2003 Load: 53.9 t ADT: 1,100

FR174

Good

Over: W. FK. CHIPPEWA RIVER

1.0 M. S. JCT STH 77, Sawyer, WI

Built 1997 Load: 54.1 t ADT: 40

LRD EDWARDS BOULEV

Good

Over: WHITE RIVER

WALWORTH COUNTY CITY OF, Walworth, WI

Built 2010 Load: 54.4 t ADT: 6,300

STH 131-CHURCH ST

Good

Over: KICKAPOO RIVER

3.2M N JCT CTH X, Crawford, WI

Built 2010 Load: 55.1 t ADT: 1,400

CTH DM

Good

Over: BR YAHARA RIVER

1.7M W JCT USH 51, Dane, WI

Built 2020 Load: 55.1 t ADT: 600

LRD WALNUT RD

Good

Over: PECATONICA RIVER

2.1M E JCT CTH K, Lafayette, WI

Built 2007 Load: 55.1 t ADT: 104

STH 136-PINE ST WB

Good

Over: BARABOO RIVER

0.7M W JCT CTH W (B), Sauk, WI

Built 2001 Load: 55.1 t ADT: 4,750

STH 136-RIVER ST

Good

Over: NARROWS CREEK

5.0M E JCT STH 23, Sauk, WI

Built 2008 Load: 55.1 t ADT: 2,600

STH 73

Good

Over: BR JUMP RIVER

0.1M N JCT STH 194, Taylor, WI

Built 2008 Load: 55.1 t ADT: 590

CTH DR

Good

Over: BARK RIVER

0.3M E JCT CTH P, Waukesha, WI

Built 2003 Load: 55.1 t ADT: 2,400

STH164 SB-CTH J SB

Good

Over: IH 94

2.3 MI S JCT STH 190, Waukesha, WI

Built 1993 Load: 55.1 t ADT: 12,100

CTH STH 164 NB - C

Good

Over: IH 94

0.5 MI N JCT CTH JJ, Waukesha, WI

Built 1993 Load: 55.1 t ADT: 12,100

IH 43 NB

Good

Over: CTH I (BELOIT RD)

3.2 MI N JCT CTH Y, Waukesha, WI

Built 2008 Load: 55.1 t ADT: 38,450

STH 49

Good

Over: MOSQUITO CR

0.5 MI N JCT CTH I, Waushara, WI

Built 2010 Load: 55.1 t ADT: 3,900

USH 12

Good

Over: DRAINAGE WAY

0.705 MI E 170TH ST, St. Croix, WI

Built 2021 Load: 55.7 t ADT: 2,900

FR 189

Good

Over: SPRING BROOK

12 MI W OF MELLEN WI, Ashland, WI

Built 2020 Load: 56.1 t ADT: 20

FR 213

Good

Over: PORCUPINE CREEK

6.8 Miles SE of Drummond, Bayfield, WI

Built 2018 Load: 56.7 t ADT: 50

STH 29 WB

Good

Over: CTH X

1.6M W JCT STH 27 TO N, Chippewa, WI

Built 1993 Load: 56.7 t ADT: 9,350

STH 131-PINE ST

Good

Over: KICKAPOO RIVER

3.4M N JCT CTH X, Crawford, WI

Built 2010 Load: 56.7 t ADT: 1,400

STH 26 SB

Good

Over: LRD WELSH ROAD

1.0 MI N STH 19, Dodge, WI

Built 2012 Load: 56.7 t ADT: 10,200

IH 94 EB

Good

Over: LOWES CREEK

0.6M E JCT STH 37 TO N, Eau Claire, WI

Built 2008 Load: 56.7 t ADT: 13,850

IH 94 WB

Good

Over: LOWES CREEK

3.8M W OF XING OF STH93, Eau Claire, WI

Built 2008 Load: 56.7 t ADT: 13,850

USH 151 SB

Good

Over: E BR FOND DU LAC R

0.45 MI N OF HICKORY ST, Fond du Lac, WI

Built 2008 Load: 56.7 t ADT: 5,750

LRD MOUNDS VIEW RD

Good

Over: WILLIAMS CREEK

1.0M N JCT CTH F, Iowa, WI

Built 1991 Load: 56.7 t ADT: 156

USH 41 NB

Good

Over: LRD OLD PESHTIGO RD

1.0 MI N OF CTH B, Marinette, WI

Built 2009 Load: 56.7 t ADT: 5,700

USH 41 SB

Good

Over: LRD OLD PESHTIGO RD

1.0 MI N OF CTH B, Marinette, WI

Built 2009 Load: 56.7 t ADT: 5,700

USH 41 SB

Good

Over: LRD SOUTH RANGE LINE ROA

AT SOUTH RANGE LINE RD, Oconto, WI

Built 2009 Load: 56.7 t ADT: 4,600

USH 41 NB

Good

Over: LRD SOUTH RANGE LINE ROA

AT SOUTH RANGE LINE RD, Oconto, WI

Built 2009 Load: 56.7 t ADT: 4,600

STH 11 WB

Good

Over: WHITE RIVER

3.1 MI W JCT STH 83, Walworth, WI

Built 2010 Load: 56.7 t ADT: 3,750

LRD HOLZ PKWY

Good

Over: MUKWONAGO RIVER

0.8M E JCT STH 83, Waukesha, WI

Built 2002 Load: 56.7 t ADT: 6,700

STH 21

Good

Over: HONEY CREEK

3.0M E JCT CTH FF, Winnebago, WI

Built 1983 Load: 56.7 t ADT: 15,100

CTH EE W HAMPTON

Good

Over: LINCOLN CREEK

0.2M E JCT STH 145, Milwaukee, WI

Built 1956 Load: 56.7 t ADT: 21,700

LRD S 1ST ST

Good

Over: KINNICKINNIC RIVER

0.6M S JCT STH 32, Milwaukee, WI

Built 1953 Load: 56.7 t ADT: 6,113

CTH KR

Good

Over: KILBOURN ROAD DITCH

0.5 MILES EAST OF IH 94, Kenosha, WI

Built 2019 Load: 57.0 t ADT: 16,920

CTH O

Good

Over: TRIMBELLE RIVER

0.1M S JCT USH 10, Pierce, WI

Built 2020 Load: 57.0 t ADT: 221

FR198

Good

Over: MARENGO RIVER

6.5 M. E. JCT CTH D, Bayfield, WI

Built 1959 Load: 57.7 t ADT: 20

LRD SAND CREEK RD

Good

Over: BR SAND CREEK

1.2M S JCT STH 171, Crawford, WI

Built 2000 Load: 58.3 t ADT: 468

LRD WB W OKLAHOMA

Good

Over: UNION PACIFIC RAILROAD

0.1M E JCT IH 43/94, Milwaukee, WI

Built 1993 Load: 58.3 t ADT: 11,500

LRD W EB OKLAHOMA

Good

Over: UPRR

0.2M W JCT STH 38, Milwaukee, WI

Built 1993 Load: 58.3 t ADT: 11,500

CTH T

Good

Over: SPRING VALLEY CREEK

1.6M N JCT USH 14, Vernon, WI

Built 1992 Load: 58.3 t ADT: 217

IH RAMP IH 94 WB

Good

Over: IH RAMP 84TH ST - IH 94

0.9 MI W JCT STH 181, Milwaukee, WI

Built 2017 Load: 58.6 t ADT: 27,200

LRD MOOSE LAKE RD

Good

Over: W FORK CHIPPEWA R

0.1 MI E OF CTH S, Sawyer, WI

Built 2010 Load: 58.6 t ADT: 235

LRD WHITNALL PARK

Good

Over: WHITNALL PARK CREEK

0.2M E JCT USH 45, Milwaukee, WI

Built 1933 Load: 59.6 t ADT: 192

LRD WHITNALL PARK

Good

Over: WHITNALL PARK CREEK

0.1M E JCT USH 45, Milwaukee, WI

Built 1933 Load: 59.6 t ADT: 321

Showing 13,401-13,450 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.