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 50 EB-STH 83 S

Good

Over: FOX RIVER

0.8M E JCT STH 83 TO N, Kenosha, WI

Built 1989 Load: 22.7 t ADT: 10,750

LRD KASTENSCHMIDT

Good

Over: BURNS CREEK

0.3M E JCT STH 162, La Crosse, WI

Built 1986 Load: 22.7 t ADT: 46

STH 64

Good

Over: BLACK BROOK

9.2M E JCT CTH X TO S, Langlade, WI

Built 1961 Load: 22.7 t ADT: 2,000

STH 17

Good

Over: BIG HAY MEADOW CREEK

2.9M N JCT CTH C, Lincoln, WI

Built 1972 Load: 22.7 t ADT: 2,600

LRD TROUT ROAD (DE

Good

Over: N BR PINE RIVER

2.0M S JCT CTH C, Lincoln, WI

Built 1987 Load: 22.7 t ADT: 18

STH 29 WB

Good

Over: BIG EAU PLEINE RIVER

1.8M W JCT CTH F, Marathon, WI

Built 1982 Load: 22.7 t ADT: 5,900

STH 241-27TH ST

Good

Over: BR KINNICKINNIC RIVER

1.2M N JCT IH 894 TO E, Milwaukee, WI

Built 1957 Load: 22.7 t ADT: 32,600

CTH ET

Good

Over: IH 94

1.2M E JCT USH 12, Monroe, WI

Built 1963 Load: 22.7 t ADT: 1,900

STH 131

Good

Over: KICKAPOO RIVER

1.9M N JCT STH 33, Monroe, WI

Built 1978 Load: 22.7 t ADT: 2,000

STH 16

Good

Over: BR CHUB CREEK

0.2M E JCT CTH T, Monroe, WI

Built 1934 Load: 22.7 t ADT: 2,300

LRD ROCKY MOUNTAIN

Good

Over: TRIB BEAR CREEK

0.7M EAST OF GREENWOOD RD, Outagamie, WI

Built 2006 Load: 22.7 t ADT: 475

CTH I

Good

Over: N FK JUMP RIVER

3.5M S JCT USH 8, Price, WI

Built 1961 Load: 22.7 t ADT: 186

CTH F

Good

Over: KNAPP CREEK

0.8M S JCT CTH S, Richland, WI

Built 1953 Load: 22.7 t ADT: 187

USH 14

Good

Over: SPRING BROOK

0.4M E JCT CTH A, Rock, WI

Built 1951 Load: 22.7 t ADT: 11,300

STH 136

Good

Over: BARABOO RIVER

3.5M E JCT STH 23, Sauk, WI

Built 1978 Load: 22.7 t ADT: 850

STH 102

Good

Over: BIG RIB RIVER

4.2M N JCT STH 13, Taylor, WI

Built 1958 Load: 22.7 t ADT: 1,400

STH 33

Good

Over: S FK BARABOO RIVER

3.5M E JCT CTH V, Vernon, WI

Built 1971 Load: 22.7 t ADT: 580

IH 43 SB

Good

Over: LRD CENTRALIA RD

0.9 MI S JCT USH 12, Walworth, WI

Built 1975 Load: 22.7 t ADT: 11,850

IH 43 NB

Good

Over: LRD CENTRALIA RD

0.7 MI N JCT STH 67, Walworth, WI

Built 1975 Load: 22.7 t ADT: 11,850

CTH X

Good

Over: WOLF RIVER

2.8M W JCT CTH W, Waupaca, WI

Built 1958 Load: 22.7 t ADT: 2,817

LRD KLEMP RD

Good

Over: PIGEON RIVER

0.4M S JCT STH 156, Waupaca, WI

Built 1982 Load: 22.7 t ADT: 980

LRD 26TH AVE

Good

Over: BEAR CREEK

0.3M W JCT CTH SS, Barron, WI

Built 1984 Load: 22.7 t ADT: 47

LRD 13 1/4 ST

Good

Over: HICKEY CREEK

1.4M S JCT STH 48, Barron, WI

Built 1970 Load: 22.7 t ADT: 47

LRD 5TH AVE

Good

Over: S FK HAY RIVER

0.8M W JCT CTH K, Barron, WI

Built 1981 Load: 22.7 t ADT: 47

CTH T

Good

Over: BR YELLOW RIVER

5.0M N JCT USH 8, Barron, WI

Built 1965 Load: 22.7 t ADT: 3,924

LRD HALE RD

Good

Over: RUBICON RIVER

0.9M W JCT STH 67, Dodge, WI

Built 1970 Load: 22.7 t ADT: 23

LRD NEWALD TOWER R

Good

Over: POPPLE RIVER

7.6M W JCT STH 101, Florence, WI

Built 1965 Load: 22.7 t ADT: 50

LRD WASHINGTON RD

Good

Over: BURGY CREEK

0.3M N JCT STH 69, Green, WI

Built 1968 Load: 22.7 t ADT: 79

LRD TOWN LINE RD

Good

Over: ONE MILE CREEK

0.4M E JCT STH 58, Juneau, WI

Built 1971 Load: 22.7 t ADT: 95

LRD EAST CIRCLE DR

Good

Over: SOMO RIVER

0.4M S JCT USH 8, Lincoln, WI

Built 1973 Load: 22.7 t ADT: 31

LRD TAUS RD

Good

Over: BRANCH RIVER

2.0M E JCT CTH G, Manitowoc, WI

Built 1967 Load: 22.7 t ADT: 205

LRD MAPLEWOOD RD

Good

Over: E TWIN RIVER

0.2M E JCT STH 147, Manitowoc, WI

Built 1977 Load: 22.7 t ADT: 188

LRD BELGIAN RD

Good

Over: KELLY BROOK

2.7M N JCT CTH A, Oconto, WI

Built 1969 Load: 22.7 t ADT: 301

LRD GREENWOOD RD

Good

Over: BEAR CREEK

1.0M N JCT CTH O, Outagamie, WI

Built 1979 Load: 22.7 t ADT: 176

LRD 18TH AVE

Good

Over: RUSH RIVER

0.1M W JCT CTH Y, St. Croix, WI

Built 1964 Load: 22.7 t ADT: 120

CTH W

Good

Over: BR KINNICKINNIC RIVER

0.9M S JCT CTH J, St. Croix, WI

Built 1965 Load: 22.7 t ADT: 170

LRD 42ND AVE

Good

Over: BR EAU GALLE RIVER

0.8M W JCT CTH B, St. Croix, WI

Built 1927 Load: 22.7 t ADT: 58

LRD INDIAN MOUND R

Good

Over: BLACK RIVER

0.4M E JCT CTH KK, Sheboygan, WI

Built 1975 Load: 22.7 t ADT: 293

LRD DELL ROAD

Good

Over: WEISTER CREEK

0.1M N JCT CTH P, Vernon, WI

Built 1980 Load: 22.7 t ADT: 94

FR 2070

Good

Over: MCCASLIN BROOK

0.04 MI E OF JCT FR 2106, Oconto, WI

Built 1982 Load: 23.3 t ADT: 50

USH 53 NB

Good

Over: CTH AA

4.4M N JCT CTH M TO E, Barron, WI

Built 1972 Load: 24.3 t ADT: 5,540

CTH I

Good

Over: RED CEDAR RIVER

2.8M N JCT CTH A TO W, Barron, WI

Built 1976 Load: 24.3 t ADT: 1,635

IH RAMP IH 43 SB-S

Good

Over: STH 54 WB-STH 57 SB

AT JCT IH 43-STH 54-57, Brown, WI

Built 1979 Load: 24.3 t ADT: 8,100

STH 25

Good

Over: DRY COULEE CREEK

0.6M N JCT STH 35 TO N, Buffalo, WI

Built 1938 Load: 24.3 t ADT: 2,400

LRD 130TH AVENUE

Good

Over: YELLOW RIVER

0.6 M E CTH D, Chippewa, WI

Built 1985 Load: 24.3 t ADT: 135

LRD TIMBER LANE RD

Good

Over: MID BR ONEILL CREEK

0.7M E JCT CTH K, Clark, WI

Built 1986 Load: 24.3 t ADT: 51

LRD DICKENSON CREE

Good

Over: S FK EAU CLAIRE RIVER

3.6M S JCT CTH MM, Clark, WI

Built 1987 Load: 24.3 t ADT: 34

IH 39 SB/IH 90 EB

Good

Over: USH 12 WB-USH 18 WB

4.3M E JCT IH 94 (A), Dane, WI

Built 1997 Load: 24.3 t ADT: 29,600

LRD S CARNOT ROAD

Good

Over: STONEY CREEK

0.3M N JCT CTH J, Door, WI

Built 1986 Load: 24.3 t ADT: 174

STH 101

Good

Over: POPPLE RIVER

4.1M N JCT CTH C, Florence, WI

Built 1949 Load: 24.3 t ADT: 520

Showing 6,251-6,300 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.