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 JG

Fair

Over: USH 18-USH 151

8.2M N JCT CTH A, Dane, WI

Built 1984 Load: 35.6 t ADT: 1,100

USH 18 EB-USH 151

Fair

Over: STH 92

0.8M E JCT CTH JG, Dane, WI

Built 1988 Load: 35.6 t ADT: 9,100

LRD REMY RD

Fair

Over: SUGAR RIVER

0.2M N JCT STH 92, Dane, WI

Built 1979 Load: 35.6 t ADT: 235

CTH BW / S BROADWA

Fair

Over: YAHARA RIVER

1.0M E JCT USH 12-18, Dane, WI

Built 1989 Load: 35.6 t ADT: 12,100

LRD RANGE TRAIL RO

Fair

Over: SUGAR RIVER

0.4M N JCT CTH PB, Dane, WI

Built 1989 Load: 35.6 t ADT: 96

USH 51 SB

Fair

Over: LRD SIGGELKOW RD

1.8M S JCT USH 12 TO W, Dane, WI

Built 1992 Load: 35.6 t ADT: 13,200

USH 151 SB

Fair

Over: LRD AMERICAN PARKWAY

1.8M S JCT CTH C, Dane, WI

Built 1991 Load: 35.6 t ADT: 35,200

USH 151 NB

Fair

Over: LRD AMERICAN PARKWAY

0.9M N JCT IH 90-94, Dane, WI

Built 1991 Load: 35.6 t ADT: 35,200

IH WB CD RDWY

Fair

Over: USH 151

TOWN OF BURKE, Dane, WI

Built 2002 Load: 35.6 t ADT: 5,406

IH EB CD RDWY

Fair

Over: USH 151

TOWN OF BURKE, Dane, WI

Built 2002 Load: 35.6 t ADT: 17,535

LRD VILAS RD

Fair

Over: LITTLE DOOR CREEK

0.2M N JCT USH 12, Dane, WI

Built 1998 Load: 35.6 t ADT: 215

CTH V

Fair

Over: IH 90/94

TOWN OF VIENNA, Dane, WI

Built 2002 Load: 35.6 t ADT: 7,900

USH 12 EB

Fair

Over: TRIB TO WAUNAKEE MARSH

1.2M E JCT STH 19 TO WEST, Dane, WI

Built 2003 Load: 35.6 t ADT: 16,700

LRD RAMP W-4

Fair

Over: USH 18/151

AT USH 18/151, Dane, WI

Built 2004 Load: 35.6 t ADT: 4,000

LRD EDGERTON RD

Fair

Over: IH 39/90

0.7 MI. N JCT STH 73, Dane, WI

Built 2015 Load: 35.6 t ADT: 1,700

LRD BEAVER ST

Fair

Over: BEAVER DAM RIVER

0.1M W JCT STH 33, Dodge, WI

Built 1954 Load: 35.6 t ADT: 6,700

LRD CANARY RD-HAHN

Fair

Over: BEAVER DAM RIVER

0.1M W JCT CTH G, Dodge, WI

Built 1976 Load: 35.6 t ADT: 141

STH 73

Fair

Over: CNW RR

0.4M N JCT CTH CD, Dodge, WI

Built 1978 Load: 35.6 t ADT: 2,400

STH 19

Fair

Over: MAUNESHA RIVER

2.0M E JCT STH 89 TO S, Dodge, WI

Built 1980 Load: 35.6 t ADT: 3,400

CTH G

Fair

Over: USH 151

1.1 MI. N CTH D, Dodge, WI

Built 1996 Load: 35.6 t ADT: 2,800

STH 28

Fair

Over: WISCONSIN CENTRAL

0.7M E JCT STH 175 TO N, Dodge, WI

Built 2003 Load: 35.6 t ADT: 3,200

LRD N 21ST ST

Fair

Over: LRD ELMIRA AVE

0.2M W JCT STH 35, Douglas, WI

Built 1985 Load: 35.6 t ADT: 5,500

CTH C

Fair

Over: CRAWFORD CREEK

1.1M E JCT STH 35, Douglas, WI

Built 1992 Load: 35.6 t ADT: 2,257

LRD MCCUMBER RD

Fair

Over: EAU CLAIRE RIVER

0.6M S JCT CTH Y, Douglas, WI

Built 2005 Load: 35.6 t ADT: 105

IH 94

Fair

Over: MUDDY CREEK

3.8M E JCT CTH B TO N, Dunn, WI

Built 1959 Load: 35.6 t ADT: 36,700

STH 72

Fair

Over: KNIGHTS CREEK

3.7M E JCT CTH C, Dunn, WI

Built 1989 Load: 35.6 t ADT: 1,300

LRD LINCOLN DRIVE

Fair

Over: BEARGRASS CREEK

1.2M N CTH AF, Eau Claire, WI

Built 1986 Load: 35.6 t ADT: 58

LRD BARSTOW ST

Fair

Over: EAU CLAIRE RIVER

0.1M N JCT USH B12, Eau Claire, WI

Built 1987 Load: 35.6 t ADT: 8,473

USH 12 EB-CLAIREMO

Fair

Over: BIKE TR.-CHIPPEWA RIVER

1.3M E JCT CTH E, Eau Claire, WI

Built 1993 Load: 35.6 t ADT: 10,450

STH 312 WB

Fair

Over: C&NW TRANS CO

AT C&NW TRANS CO, Eau Claire, WI

Built 1993 Load: 35.6 t ADT: 8,250

STH 312EB(OLD STH1

Fair

Over: C&NW TRANS CO

0.7M N JCT USH 12 TO E, Eau Claire, WI

Built 1993 Load: 35.6 t ADT: 10,200

LRD STARR AVE

Fair

Over: STH312 EB(OLD STH124)

2.0M N JCT BELLEVUE AVE, Eau Claire, WI

Built 1993 Load: 35.6 t ADT: 3,900

LRD WESTERN AVE

Fair

Over: STH312 (OLD STH124)

1.2M N JCT USH 53, Eau Claire, WI

Built 1992 Load: 35.6 t ADT: 1,400

USH 12 WB-CLAIREMO

Fair

Over: CHIPPEWA RIVER 07

0.6M W JCT STH 37, Eau Claire, WI

Built 2005 Load: 35.6 t ADT: 10,450

LRD LASALLE ST

Fair

Over: USH 53

AT USH 53, Eau Claire, WI

Built 2003 Load: 35.6 t ADT: 4,000

CTH OOO (W. SCOTT

Fair

Over: IH 41

0.2M E JCT CTH VVV, Fond du Lac, WI

Built 1973 Load: 35.6 t ADT: 8,900

LRD BROOKE ST

Fair

Over: E BR FOND DU LAC RIVER

0.1M S JCT STH 23, Fond du Lac, WI

Built 1978 Load: 35.6 t ADT: 3,400

LRD ROGERSVILLE RO

Fair

Over: W BR FOND DU LAC RIVER

3.9M E JCT CTH Y, Fond du Lac, WI

Built 1979 Load: 35.6 t ADT: 5

CTH K

Fair

Over: W BR MILWAUKEE RIVER

0.5M S JCT CTH Y, Fond du Lac, WI

Built 1989 Load: 35.6 t ADT: 560

USH 45

Fair

Over: MILWAUKEE RIVER

1.0M N JCT STH 28 TO W, Fond du Lac, WI

Built 1991 Load: 35.6 t ADT: 2,500

CTH A

Fair

Over: BRULE CREEK

1.3M W JCT STH 55, Forest, WI

Built 1988 Load: 35.6 t ADT: 263

CTH Z

Fair

Over: FAIRPLAY CREEK

0.1M E JCT STH 11, Grant, WI

Built 1983 Load: 35.6 t ADT: 1,000

USH 61

Fair

Over: CROOKED CREEK

6.5M N JCT CTH T, Grant, WI

Built 2002 Load: 35.6 t ADT: 4,000

CTH F

Fair

Over: BURGY CREEK

1.6M E JCT CTH EE, Green, WI

Built 1955 Load: 35.6 t ADT: 369

STH 81

Fair

Over: SKINNER CREEK

2.5M E JCT CTH M TO S, Green, WI

Built 1980 Load: 35.6 t ADT: 2,800

CTH OK

Fair

Over: JUDA BRANCH

1.5M S JCT CTH SS, Green, WI

Built 1988 Load: 35.6 t ADT: 143

LRD FELDT RD

Fair

Over: BURGY CREEK

0.7M S JCT CTH F, Green, WI

Built 1990 Load: 35.6 t ADT: 184

LRD OLD MADISON RD

Fair

Over: LITTLE SUGAR RIVER

0.1M N JCT CTH O, Green, WI

Built 1991 Load: 35.6 t ADT: 527

CTH S

Fair

Over: LITTLE JORDAN CREEK

0.9M N JCT CTH SS, Green, WI

Built 1990 Load: 35.6 t ADT: 432

LRD SCHUEYVILLE RD

Fair

Over: RICHLAND CREEK

0.3M N JCT CTH P, Green, WI

Built 1992 Load: 35.6 t ADT: 39

Showing 4,151-4,200 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.