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 MARSH ROAD

Good

Over: JOHNSON CREEK

0.2M N JCT CTH Y, Jefferson, WI

Built 1990 Load: 40.5 t ADT: 226

LRD GREEN ISLE DR

Good

Over: BARK RIVER

0.4M E JCT CTH D, Jefferson, WI

Built 1993 Load: 40.5 t ADT: 195

LRD UNION ST

Good

Over: JOHNSON CREEK

0.4M W JCT STH 26, Jefferson, WI

Built 1997 Load: 40.5 t ADT: 3,900

STH 16

Good

Over: CTH CW

0.8M E JCT CTH R, Jefferson, WI

Built 1999 Load: 40.5 t ADT: 3,200

LRD MARKERT RD

Good

Over: DUCK CREEK

1.3M E JCT CTH D, Jefferson, WI

Built 1999 Load: 40.5 t ADT: 54

LRD CHURCH ST

Good

Over: ROCK RIVER

0.7M S JCT STH 19, Jefferson, WI

Built 2003 Load: 40.5 t ADT: 9,495

LRD CHURCH ST

Good

Over: ROCK RIVER

1.0M N JCT CTH Y TO E, Jefferson, WI

Built 2003 Load: 40.5 t ADT: 9,811

CTH F

Good

Over: CTH OCONOMOWOC RIVER

0.7M N JCT IH 94 TO E, Jefferson, WI

Built 2006 Load: 40.5 t ADT: 4,095

LRD MILWAUKEE ST

Good

Over: ROCK RIVER

0.6M S JCT STH 19, Jefferson, WI

Built 2008 Load: 40.5 t ADT: 8,216

STH 58

Good

Over: ONE MILE CREEK

1.9M N JCT CTH O, Juneau, WI

Built 2000 Load: 40.5 t ADT: 5,100

STH 80

Good

Over: SHERMAN CR

0.1M S CTH H, Juneau, WI

Built 2005 Load: 40.5 t ADT: 1,600

CTH I

Good

Over: SCHMIDT CREEK

0.8M E JCT CTH G TO N, Juneau, WI

Built 2005 Load: 40.5 t ADT: 262

STH 165 WB

Good

Over: C & N.W. RR

0.5 MI W JCT STH 31, Kenosha, WI

Built 1993 Load: 40.5 t ADT: 8,900

STH 165 EB

Good

Over: C & N.W. RR

0.7 MI E JCT CTH H, Kenosha, WI

Built 1993 Load: 40.5 t ADT: 8,900

STH 32

Good

Over: PIKE R

AT PIKE RIVER, Kenosha, WI

Built 2005 Load: 40.5 t ADT: 9,900

IH 41 SB/94 EB

Good

Over: STH 142

5.4 MI S JCT STH 11, Kenosha, WI

Built 2014 Load: 40.5 t ADT: 41,800

IH 41 NB/94 WB

Good

Over: STH 142

3.3 MI N JCT STH 50, Kenosha, WI

Built 2013 Load: 40.5 t ADT: 45,300

CTH S WB

Good

Over: KILBOURN ROAD DITCH

AT KILBOURN ROAD DITCH, Kenosha, WI

Built 2020 Load: 40.5 t ADT: 9,355

CTH G

Good

Over: E TWIN RIVER

1.0M E JCT CTH B, Kewaunee, WI

Built 1997 Load: 40.5 t ADT: 253

USH 53 NB-STH 35 N

Good

Over: CTH MH

4.1M N JCT CTH OT, La Crosse, WI

Built 1992 Load: 40.5 t ADT: 7,100

USH 53 NB

Good

Over: STH 35NB/CTH HD

1.7M N JCT CTH MH (C), La Crosse, WI

Built 1992 Load: 40.5 t ADT: 7,100

USH 53 SB

Good

Over: STH 35NB/CTH HD

3.6M S JCT CTH T (C), La Crosse, WI

Built 1992 Load: 40.5 t ADT: 7,100

LRD GILLS COULEE R

Good

Over: GILLS COULEE CREEK

2.4M N JCT STH 16, La Crosse, WI

Built 1992 Load: 40.5 t ADT: 25

LRD KIEL COULEE RD

Good

Over: KIEL COULEE CREEK

1.5M S JCT CTH B, La Crosse, WI

Built 1992 Load: 40.5 t ADT: 470

STH 16-STH 162

Good

Over: BURNS CREEK

0.1M E JCT STH 162 TO N, La Crosse, WI

Built 1995 Load: 40.5 t ADT: 5,000

CTH J

Good

Over: FISH CREEK

0.7M S JCT CTH B, La Crosse, WI

Built 2019 Load: 40.5 t ADT: 340

LRD MARKET ST

Good

Over: BONNER BRANCH

0.1M E JCT USH 151, Lafayette, WI

Built 1985 Load: 40.5 t ADT: 517

LRD AETNA RD

Good

Over: SHULLSBURG BRANCH

1.1M E JCT CTH I, Lafayette, WI

Built 1993 Load: 40.5 t ADT: 61

LRD MINE RD

Good

Over: GALENA RIVER

0.7M S JCT STH 81, Lafayette, WI

Built 1992 Load: 40.5 t ADT: 172

CTH G

Good

Over: BONNER BRANCH

2.1M E JCT STH 126, Lafayette, WI

Built 1992 Load: 40.5 t ADT: 345

LRD CUB HOLLOW RD

Good

Over: COPPER CREEK

1.7M N JCT STH 11, Lafayette, WI

Built 1994 Load: 40.5 t ADT: 88

LRD ROWESVILLE RD

Good

Over: BR MADDEN BRANCH

2.4M N JCT CTH Q, Lafayette, WI

Built 1994 Load: 40.5 t ADT: 58

LRD BROWN RD

Good

Over: BROWN BROOK

0.7M N JCT CTH DD, Lafayette, WI

Built 1996 Load: 40.5 t ADT: 1

CTH O

Good

Over: FURNACE CREEK

3.0M N JCT CTH C, Lafayette, WI

Built 1998 Load: 40.5 t ADT: 238

LRD ROCKY RD

Good

Over: AMES BRANCH

0.4M S JCT CTH E, Lafayette, WI

Built 1998 Load: 40.5 t ADT: 67

STH 78

Good

Over: SAWMILL CREEK

2.5M N JCT CTH A, Lafayette, WI

Built 2003 Load: 40.5 t ADT: 873

LRD ORMSBY RD

Good

Over: W BR EAU CLAIRE RIVER

2.5M N JCT CTH C, Langlade, WI

Built 1989 Load: 40.5 t ADT: 178

STH 64

Good

Over: S BR OCONTO RIVER

2.6M E JCT STH 55, Langlade, WI

Built 1997 Load: 40.5 t ADT: 1,600

CTH A

Good

Over: LILY RIVER

0.1M W JCT STH 52, Langlade, WI

Built 2003 Load: 40.5 t ADT: 215

LRD HILLVIEW ROAD

Good

Over: BR PINE RIVER

0.9M S JCT STH 64, Lincoln, WI

Built 1990 Load: 40.5 t ADT: 41

LRD WEGNER RD

Good

Over: COPPER RIVER

1.5M N JCT CTH M, Lincoln, WI

Built 1994 Load: 40.5 t ADT: 58

LRD COUNTY LINE RO

Good

Over: CAIN CREEK

0.6M E JCT CTH X, Lincoln, WI

Built 1994 Load: 40.5 t ADT: 46

CTH A

Good

Over: NOISY CREEK

0.9M S JCT STH 17, Lincoln, WI

Built 2003 Load: 40.5 t ADT: 581

CTH JJ

Good

Over: MUD CREEK

0.8M E JCT CTH "W", Manitowoc, WI

Built 2007 Load: 40.5 t ADT: 1,200

STH 29 WB

Good

Over: PLOVER RIVER

0.05M W JCT CTH Y, Marathon, WI

Built 1959 Load: 40.5 t ADT: 13,000

LRD BOUNDRY RD

Good

Over: PLOVER RIVER

0.3M W JCT CTH Y, Marathon, WI

Built 1983 Load: 40.5 t ADT: 95

LRD TOWN HALL LANE

Good

Over: LITTLE EAU PLEINE RIVER

1.8M E JCT STH 13, Marathon, WI

Built 1991 Load: 40.5 t ADT: 84

LRD MOUNTAIN DR (D

Good

Over: LITTLE WOLF RIVER

0.1M E JCT STH 49, Marathon, WI

Built 1991 Load: 40.5 t ADT: 30

LRD COUNTY LINE RD

Good

Over: BR LT EAU PLEINE RIVER

0.9M E JCT CTH M, Marathon, WI

Built 1992 Load: 40.5 t ADT: 25

LRD RAINBOW DR

Good

Over: MCGINNIS CREEK

1.6M W JCT CTH S, Marathon, WI

Built 1993 Load: 40.5 t ADT: 62

Showing 11,851-11,900 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.