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

CTH A

Fair

Over: BR LOWER PINE CREEK

0.2M W JCT CTH AA, Barron, WI

Built 1972 Load: 29.2 t ADT: 1,068

LRD 20TH ST

Fair

Over: BROWN CREEK

0.7M S JCT CTH OO, Barron, WI

Built 1965 Load: 29.2 t ADT: 23

CTH BB

Fair

Over: BR BUFFALO RIVER

0.2M N JCT CTH HH, Buffalo, WI

Built 1971 Load: 29.2 t ADT: 550

LRD BADGER AVE

Fair

Over: POPPLE RIVER

2.5M N JCT STH 29, Clark, WI

Built 1960 Load: 29.2 t ADT: 50

LRD MAPLE RD

Fair

Over: CONLAN CREEK

2.2M S JCT USH 10, Clark, WI

Built 1928 Load: 29.2 t ADT: 58

LRD CARDINAL AVE

Fair

Over: CUNNINGHAM CREEK

0.3M N JCT STH 73, Clark, WI

Built 1958 Load: 29.2 t ADT: 58

LRD MUSKRAT RD

Fair

Over: NEENAH CREEK

2.5M N JCT CTH X, Columbia, WI

Built 1971 Load: 29.2 t ADT: 53

CTH CD

Fair

Over: N BR CRAWFISH RIVER

0.7M N JCT CTH Z, Columbia, WI

Built 1971 Load: 29.2 t ADT: 178

LRD RIVER RD

Fair

Over: WISCONSIN RIVER TRIB

0.2M N JCT STH 13, Columbia, WI

Built 1932 Load: 29.2 t ADT: 4,100

LRD WALKER HOLLOW

Fair

Over: OTTER CREEK

0.8M S JCT STH 179, Crawford, WI

Built 1910 Load: 29.2 t ADT: 47

LRD MARIETTA VALLE

Fair

Over: BR RICHLAND CREEK

0.6M S JCT USH 61, Crawford, WI

Built 1927 Load: 29.2 t ADT: 23

LRD SUTCLIFFE RD

Fair

Over: E BR BLUE MOUNDS CREEK

3.0M W JCT CTH F, Dane, WI

Built 1975 Load: 29.2 t ADT: 47

LRD CHURCH RD

Fair

Over: W BR ROCK RIVER

0.1M N JCT CTH T, Fond du Lac, WI

Built 1925 Load: 29.2 t ADT: 52

LRD BIBA RD

Fair

Over: BLUE RIVER

0.1M W JCT CTH Q, Grant, WI

Built 1978 Load: 29.2 t ADT: 101

LRD OAK RD

Fair

Over: LITTLE PLATTE RIVER

1.8M N JCT USH 61, Grant, WI

Built 1975 Load: 29.2 t ADT: 80

LRD WARD CREEK LAN

Fair

Over: WARD CREEK

0.1M W JCT CTH W, Green, WI

Built 1953 Load: 29.2 t ADT: 50

CTH HK

Fair

Over: HONEY CREEK

0.9M S JCT CTH B, Green, WI

Built 1972 Load: 29.2 t ADT: 211

CTH S

Fair

Over: BR JUDA BRANCH

0.3M N JCT CTH KS, Green, WI

Built 1972 Load: 29.2 t ADT: 1,700

LRD PRIEN RD

Fair

Over: SYLVESTER CREEK

0.4M S JCT STH 59, Green, WI

Built 1977 Load: 29.2 t ADT: 79

LRD ROARING CREEK

Fair

Over: ROARING CREEK

0.2M N JCT STH 54, Jackson, WI

Built 1928 Load: 29.2 t ADT: 66

LRD MANSER RD

Fair

Over: MILL CREEK

0.8M N JCT STH 54, Jackson, WI

Built 1925 Load: 29.2 t ADT: 35

LRD CUB HOLLOW RD

Fair

Over: BR WOLF CREEK

2.1M S JCT STH 11, Lafayette, WI

Built 1947 Load: 29.2 t ADT: 58

LRD SOUTH BRANCH R

Fair

Over: S BR COPPER RIVER

1.0M S JCT CTH M, Lincoln, WI

Built 1979 Load: 29.2 t ADT: 27

LRD LAKE SHORE RD

Fair

Over: RABE FOREST CREEK

0.2M N JCT CTH V, Manitowoc, WI

Built 1968 Load: 29.2 t ADT: 176

LRD SUNRISE RD

Fair

Over: TRAPPE RIVER

0.8M N JCT CTH G, Marathon, WI

Built 1973 Load: 29.2 t ADT: 25

LRD HOLLYWOOD LA

Fair

Over: FOUR MILE CREEK

2.6M S JCT CTH N, Marathon, WI

Built 1946 Load: 29.2 t ADT: 80

CTH C

Fair

Over: E BR LT EAU PLEINE RIVER

1.8M E STH 13, Marathon, WI

Built 1941 Load: 29.2 t ADT: 1,465

LRD NEHRBASS RD

Fair

Over: BALDWIN CREEK

2.7M N JCT CTH F, Marathon, WI

Built 1946 Load: 29.2 t ADT: 22

LRD S DANA COURT (

Fair

Over: LAND

0.3M S JCT USH 18, Milwaukee, WI

Built 1928 Load: 29.2 t ADT: 52

LRD 15TH AVE

Fair

Over: OAK CREEK

1.1M S JCT COLLEGE (CTH, Milwaukee, WI

Built 1957 Load: 29.2 t ADT: 3,000

LRD N HAWLEY RD

Fair

Over: LRD W STATE ST

0.6M W JCT USH 41, Milwaukee, WI

Built 1959 Load: 29.2 t ADT: 12,695

LRD IRONWOOD RD

Fair

Over: BEAR CREEK

1.8M N JCT CTH A, Monroe, WI

Built 1974 Load: 29.2 t ADT: 23

LRD JAGIELLO RD

Fair

Over: LITTLE RIVER

0.4M S JCT CTH M, Oconto, WI

Built 1927 Load: 29.2 t ADT: 135

LRD BUBOLTZ RD

Fair

Over: MAPLE CREEK

0.3M N JCT CTH W, Outagamie, WI

Built 1909 Load: 29.2 t ADT: 47

LRD SEMINARY ROAD

Fair

Over: DUCK CREEK

0.5M W JCT CTH E, Outagamie, WI

Built 1979 Load: 29.2 t ADT: 235

LRD RAY RD

Fair

Over: BR DUCK CREEK

0.1M S JCT CTH EE, Outagamie, WI

Built 1910 Load: 29.2 t ADT: 1,100

CTH P

Fair

Over: SHIOC RIVER

2.2M E JCT STH 187, Outagamie, WI

Built 1972 Load: 29.2 t ADT: 239

LRD PIERRE LANE

Fair

Over: SAUK CREEK

0.4M N JCT STH 32, Ozaukee, WI

Built 1966 Load: 29.2 t ADT: 2,400

LRD 570TH AVE

Fair

Over: RUSH RIVER

0.9M W JCT CTH BB, Pierce, WI

Built 1978 Load: 29.2 t ADT: 87

CTH U

Fair

Over: ELK CREEK

2.4M N JCT CTH E, Richland, WI

Built 1950 Load: 29.2 t ADT: 163

LRD HATCHER LANE (

Fair

Over: PINE RIVER

0.1M N JCTCTH C, Richland, WI

Built 1982 Load: 29.2 t ADT: 20

LRD PARK AVE

Fair

Over: TURTLE CREEK

0.2M S JCT USH 51, Rock, WI

Built 1988 Load: 29.2 t ADT: 3,300

LRD RUSTIC RD #3

Fair

Over: BEAVER CREEK

1.3M N JCT CTH E, St. Croix, WI

Built 1977 Load: 29.2 t ADT: 269

CTH H

Fair

Over: DELL CREEK

0.7M N JCT CTH P, Sauk, WI

Built 1971 Load: 29.2 t ADT: 4,000

LRD VOSEN LANE (DE

Fair

Over: CARR VALLEY BRANCH

0.15 MI W OF CTH G, Sauk, WI

Built 1990 Load: 29.2 t ADT: 15

LRD ADAMS ST

Fair

Over: DELL CREEK

0.2M E JCT USH 12, Sauk, WI

Built 1974 Load: 29.2 t ADT: 352

LRD DANE HILL RD

Fair

Over: LITTLE BEAR CREEK

0.2M S JCT CTH B, Sauk, WI

Built 1929 Load: 29.2 t ADT: 60

CTH NN

Fair

Over: N BR MILWAUKEE RIVER

0.1M N JCT CTH F TO E, Sheboygan, WI

Built 1932 Load: 29.2 t ADT: 205

LRD KITTY LN (DEAD

Fair

Over: IRVIN CREEK

0.1M W JCT CTH D, Trempealeau, WI

Built 1981 Load: 29.2 t ADT: 20

LRD MOILIEN HILL R

Fair

Over: SPRING COULEE CREEK

2.7M E JCT CTH P, Vernon, WI

Built 1981 Load: 29.2 t ADT: 94

Showing 2,501-2,550 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.