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 W LOCUST ST

Fair

Over: IH 43-N-S FREEWAY

0.6M E JCT STH 57, Milwaukee, WI

Built 1964 Load: 29.2 t ADT: 16,300

CTH PP - EB GOOD H

Fair

Over: IH 41/USH 45/STH 100

1.0 MI E JCT STH 175/APPL, Milwaukee, WI

Built 1964 Load: 29.2 t ADT: 9,900

CTH PP - WB GOOD H

Fair

Over: IH 41/USH 45/STH 100

0.2 MI W JCT STH 145, Milwaukee, WI

Built 1964 Load: 29.2 t ADT: 20,350

IH RAMP IH 94EB-HO

Fair

Over: LRD W HOLT AVE

AT JCT WITH IH 43/94, Milwaukee, WI

Built 1965 Load: 29.2 t ADT: 2,000

IH NORTHBOUND COLL

Fair

Over: LRD W HOLT AVE

0.6 MILES NORTH OF HOWARD, Milwaukee, WI

Built 1966 Load: 29.2 t ADT: 4,600

STH 145 SB-W FOND

Fair

Over: LRD LITTLE MENOMONEE PRK

1.5 MI S JCT USH 45, Milwaukee, WI

Built 1966 Load: 29.2 t ADT: 11,050

STH 145 NB-W FOND

Fair

Over: LRD LITTLE MENOMONEE PAR

1.5 MI S JCT USH 45, Milwaukee, WI

Built 1965 Load: 29.2 t ADT: 9,950

STH 145 SB-W FOND

Fair

Over: LRD FLAGG AVE

2.9M S JCT USH 41 TO S, Milwaukee, WI

Built 1966 Load: 29.2 t ADT: 13,100

STH 145 NB-W FOND

Fair

Over: LRD FLAGG AVE

1.3M N JCT STH 181, Milwaukee, WI

Built 1966 Load: 29.2 t ADT: 13,100

IH 94 EB-IH 43 SB

Fair

Over: STH 38- W WASHINGTON

0.2 MI S JCT STH 59, Milwaukee, WI

Built 1968 Load: 29.2 t ADT: 66,500

IH 94 WB-IH 43 NB

Fair

Over: STH 38-W WASHINGTON

0.22 MI N JCT GREENFIELD, Milwaukee, WI

Built 1968 Load: 29.2 t ADT: 66,500

STH 38-HOWELL AVE

Fair

Over: AIRPORT CREEK

0.5M N JCT CTH ZZ, Milwaukee, WI

Built 1964 Load: 29.2 t ADT: 23,600

USH RAMP IH 43 SB

Fair

Over: IH 43 NB

0.9 MI S JCT IH 894, Milwaukee, WI

Built 1965 Load: 29.2 t ADT: 11,800

STH 100 SB-S 108TH

Fair

Over: ROOT RIVER

0.2M S JCT CTH T, Milwaukee, WI

Built 1968 Load: 29.2 t ADT: 14,200

STH 100 NB-S 108TH

Fair

Over: ROOT RIVER

0.9M N JCT CTH Y/LAYTON A, Milwaukee, WI

Built 1968 Load: 29.2 t ADT: 14,200

IH 43 SB-HALE INTR

Fair

Over: ROOT RIVER MARSH

0.9 MI W JCT S 84TH ST, Milwaukee, WI

Built 1966 Load: 29.2 t ADT: 17,900

STH 100 NB-MAYFAIR

Fair

Over: MENOMONEE RIVER

3.4M N JCT USH 18 (F), Milwaukee, WI

Built 1968 Load: 29.2 t ADT: 11,300

IH 41/USH 45 SB-ZO

Fair

Over: LRD W BURLEIGH ST

1.1M S JCT STH 190 TO E, Milwaukee, WI

Built 1967 Load: 29.2 t ADT: 78,500

IH 41NB-ZOO FREEWA

Fair

Over: LRD W BURLEIGH ST

4.0M N JCT IH 894 TO W, Milwaukee, WI

Built 1967 Load: 29.2 t ADT: 78,500

IH 41/USH 45 SB-ZO

Fair

Over: STH 100 SB-SILVER SPRING

0.2 MI S JCT STH 100, Milwaukee, WI

Built 1967 Load: 29.2 t ADT: 53,500

IH 41/USH 45 NB-ZO

Fair

Over: STH 100 SB-SILVER SPRING

1.9 M N JCT STH 190, Milwaukee, WI

Built 1967 Load: 29.2 t ADT: 53,500

IH 41/USH 45/STH 1

Fair

Over: CNW RR

2.3M N JCT STH 190 (G), Milwaukee, WI

Built 1967 Load: 29.2 t ADT: 54,500

STH 36-LOOMIS RD

Fair

Over: ROOT RIVER

3.3 MI N JCT STH 100, Milwaukee, WI

Built 1968 Load: 29.2 t ADT: 15,500

IH 794 EB

Fair

Over: LAND

1.0 MI E JCT IH 43, Milwaukee, WI

Built 1974 Load: 29.2 t ADT: 39,850

IH 794 EB

Fair

Over: LRD N JACKSON ST

1.1 MI E JCT IH-43, Milwaukee, WI

Built 1974 Load: 29.2 t ADT: 39,850

IH RAMP BROADWAY

Fair

Over: LAND

1.0 MI E JCT IH 43, Milwaukee, WI

Built 1974 Load: 29.2 t ADT: 4,910

STH 119 EB-AIRPORT

Fair

Over: STH 38-HOWELL AVE

1.8M E JCT IH 94 TO E, Milwaukee, WI

Built 1978 Load: 29.2 t ADT: 4,900

LRD FOREST HILL AV

Fair

Over: OAK CREEK

1.2M E JCT STH 38, Milwaukee, WI

Built 1979 Load: 29.2 t ADT: 1,800

LRD W CLEVELAND AV

Fair

Over: KINNICKINNIC RIVER

0.6M E JCT STH 241, Milwaukee, WI

Built 1986 Load: 29.2 t ADT: 4,300

IH 43 SB-N-S FREEW

Fair

Over: LRD LEXINGTON BLVD

4.6M S JCT STH 100, Milwaukee, WI

Built 1991 Load: 29.2 t ADT: 54,000

STH 57-GREEN BAY A

Fair

Over: LINCOLN CREEK

1.7M N JCT STH 190 TO E, Milwaukee, WI

Built 1941 Load: 29.2 t ADT: 13,600

STH 241 N/27TH ST

Fair

Over: ROOT RIVER

0.1M N JCT IH 94 TO W, Milwaukee, WI

Built 1931 Load: 29.2 t ADT: 6,800

IH 90 EB

Fair

Over: LITTLE LA CROSSE RIVER

8 MI E JCT STH 162 (MM23., Monroe, WI

Built 1968 Load: 29.2 t ADT: 12,150

IH 90 WB

Fair

Over: LITTLE LA CROSSE RIVER

1.8M W JCT STH 27 TO N, Monroe, WI

Built 1968 Load: 29.2 t ADT: 12,150

IH 90 EB

Fair

Over: LRD LEON VALLEY RD

8.1M E JCT STH 162 TO N, Monroe, WI

Built 1968 Load: 29.2 t ADT: 12,150

IH 90 WB

Fair

Over: LRD LEON VALLEY RD

1.7M W JCT STH 27 TO N, Monroe, WI

Built 1968 Load: 29.2 t ADT: 12,150

IH 90 EB

Fair

Over: CTH A

1.9M E JCT STH 16 (E), Monroe, WI

Built 1968 Load: 29.2 t ADT: 8,950

IH 90 WB

Fair

Over: CTH A

11.7M W JCT STH 131 (E), Monroe, WI

Built 1968 Load: 29.2 t ADT: 8,950

STH 131

Fair

Over: KICKAPOO RIVER

0.6M N JCT STH 33, Monroe, WI

Built 1978 Load: 29.2 t ADT: 2,000

LRD COPPER RD

Fair

Over: E FK LEMONWEIR RIVER

0.1M N JCT STH 21, Monroe, WI

Built 1976 Load: 29.2 t ADT: 117

LRD FUNNEL RD

Fair

Over: E FK LEMONWEIR RIVER

1.3M S JCT STH 21, Monroe, WI

Built 1986 Load: 29.2 t ADT: 69

LRD KEYSTONE ROAD

Fair

Over: KICKAPOO RIVER

0.1M N JCT STH 71, Monroe, WI

Built 1986 Load: 29.2 t ADT: 97

LRD PESHTIGO BROOK

Fair

Over: PESHTIGO BROOK

0.7M N JCT STH 32, Oconto, WI

Built 1983 Load: 29.2 t ADT: 301

USH 41 SB

Fair

Over: USH 141 NB

2.5M S JCT CTH J, Oconto, WI

Built 1993 Load: 29.2 t ADT: 6,200

LRD GOATSVILLE RD

Fair

Over: KELLY BROOK

1.5M N JCT CTH A, Oconto, WI

Built 1932 Load: 29.2 t ADT: 8,600

LRD BOYCE DR

Fair

Over: PELICAN RIVER

.3M E JCT 17 & 47, Oneida, WI

Built 1987 Load: 29.2 t ADT: 5,656

STH 96-MAIN ST

Fair

Over: BONGERS CREEK

1.4 MI E OF STH 96, Outagamie, WI

Built 1956 Load: 29.2 t ADT: 5,400

IH 41 SB

Fair

Over: STH 55

2.6M S JCT CTH JJ, Outagamie, WI

Built 1961 Load: 29.2 t ADT: 29,200

LRD APPLETON ST SB

Fair

Over: LRD JONES PARK RD

0.8M S JCT STH 96, Outagamie, WI

Built 1980 Load: 29.2 t ADT: 11,985

STH 57-STH 167-MEQ

Fair

Over: MILWAUKEE RIVER

0.1M N JCT CTH V, Ozaukee, WI

Built 1983 Load: 29.2 t ADT: 26,000

Showing 2,351-2,400 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.