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

IH 43 SB

Good

Over: IH N-E RAMP

0.5M S WISCONSIN AV, Milwaukee, WI

Built 2008 Load: 48.6 t ADT: 38,400

LRD OPAQUE RD

Good

Over: BRUSH CREEK

0.1M S JCT STH 33, Monroe, WI

Built 1994 Load: 48.6 t ADT: 22

CTH M

Good

Over: SLEIGHTON CREEK

1.6M N JCT STH 71, Monroe, WI

Built 2007 Load: 48.6 t ADT: 176

CTH T

Good

Over: MORRIS CREEK

0.3M N JCT STH 131, Monroe, WI

Built 2007 Load: 48.6 t ADT: 780

LRD BELGIAN RD

Good

Over: N BR LITTLE RIVER

3.6M N JCT CTH A, Oconto, WI

Built 1991 Load: 48.6 t ADT: 175

USH 41 SB RAMP

Good

Over: USH 41

AT 41, Oconto, WI

Built 2008 Load: 48.6 t ADT: 1,500

CTH B

Good

Over: KELLY BROOK

0.1M S JCT CTH A TO E, Oconto, WI

Built 2007 Load: 48.6 t ADT: 1,300

CTH F

Good

Over: EMBARRASS RIVER OVERFLOW

1.4M E JCT STH 76, Outagamie, WI

Built 1977 Load: 48.6 t ADT: 266

LRD 645TH AVE

Good

Over: GOOSE CREEK

0.1M N JCT STH 65, Pierce, WI

Built 2008 Load: 48.6 t ADT: 104

IH I39 SB RAMP TO

Good

Over: LRD SCENIC DRIVE

US 10 AND I39 SYSTEM RAMP, Portage, WI

Built 2009 Load: 48.6 t ADT: 280

IH39 NB RAMP TO US

Good

Over: CTH X

IH39/USH10 SYSTEM INTERCH, Portage, WI

Built 2009 Load: 48.6 t ADT: 5,300

STH 11 BYPASS

Good

Over: HOOSIER CR

2.1M N JCT STH 38, Racine, WI

Built 2006 Load: 48.6 t ADT: 8,900

CTH G

Good

Over: IH 41/94

0.9 MI W JCT CTH V, Racine, WI

Built 2009 Load: 48.6 t ADT: 3,700

CTH B

Good

Over: LITTLE BEAR CREEK

0.9M E JCT STH 130, Richland, WI

Built 1997 Load: 48.6 t ADT: 425

STH 60

Good

Over: DRY RUN

2.3 MI E. OF CTH F, Richland, WI

Built 2007 Load: 48.6 t ADT: 1,800

LRD HORSE LANE (DE

Good

Over: SMYTH HOLLOW CREEK

1.7M E JCT STH 58, Richland, WI

Built 2008 Load: 48.6 t ADT: 20

LRD SOUTH ST (DEAD

Good

Over: DEER TAIL CREEK

0.2M E JCT CTH I-116, Rusk, WI

Built 2000 Load: 48.6 t ADT: 100

LRD OAK GROVE RD

Good

Over: DEER TAIL CREEK

0.7M S JCT CTH P, Rusk, WI

Built 2008 Load: 48.6 t ADT: 104

STH 64

Good

Over: WILLOW RIVER

1.2M E JCT CTH T, St. Croix, WI

Built 2009 Load: 48.6 t ADT: 7,300

LRD IRVINE DR

Good

Over: KENYON CREEK

2.1M W JCT STH 27, Sawyer, WI

Built 2008 Load: 48.6 t ADT: 104

STH 29 EB

Good

Over: WCL RR

2.8M E JCT STH 22, Shawano, WI

Built 1997 Load: 48.6 t ADT: 7,350

STH 29 WB

Good

Over: WCL RR

5.8M W JCT STH 47, Shawano, WI

Built 1997 Load: 48.6 t ADT: 7,500

CTH PP

Good

Over: MULLET RIVER

0.1M W JCT CTH O, Sheboygan, WI

Built 1994 Load: 48.6 t ADT: 5,200

CTH U

Good

Over: ONION RIVER

0.5M E JCT CTH E, Sheboygan, WI

Built 1995 Load: 48.6 t ADT: 323

LRD MINK RD

Good

Over: MINK CREEK

2.0M N JCT STH 64, Taylor, WI

Built 2006 Load: 48.6 t ADT: 104

CTH OOO

Good

Over: BUFFALO RIVER

0.1M S JCT USH 10, Trempealeau, WI

Built 2002 Load: 48.6 t ADT: 342

LRD MUNDSACK RD

Good

Over: BR N FK BAD AXE RIVER

1.3M S JCT STH 56, Vernon, WI

Built 2008 Load: 48.6 t ADT: 41

LRD MUNYON LANE (D

Good

Over: N FK BAD AXE RIVER

2.5M N JCT STH 56, Vernon, WI

Built 2001 Load: 48.6 t ADT: 20

LRD UNION AVE

Good

Over: WARNER CREEK

0.1M S JCT CTH P, Vernon, WI

Built 2003 Load: 48.6 t ADT: 42

LRD PARK ROAD

Good

Over: BR N FK BAD AXE RIVER

0.1M W JCT CTH B, Vernon, WI

Built 2008 Load: 48.6 t ADT: 232

STH 82

Good

Over: BR BEAR CREEK

0.7M E JCT STH 131 TO S, Vernon, WI

Built 1934 Load: 48.6 t ADT: 1,500

CTH H

Good

Over: TROUT RIVER

2.6M S OF USH51, Vilas, WI

Built 1993 Load: 48.6 t ADT: 705

CTH O

Good

Over: SWAN CREEK

1.3M S JCT STH 11, Walworth, WI

Built 2006 Load: 48.6 t ADT: 3,500

LRD NORTH RD

Good

Over: NAMEKAGON RIVER

0.3M N JCT USH 63, Washburn, WI

Built 1996 Load: 48.6 t ADT: 47

STH 77

Good

Over: NAMEKAGON RIVER

5.6M E JCT CTH H, Washburn, WI

Built 2005 Load: 48.6 t ADT: 1,100

STH 54

Good

Over: GBW RR

0.5M E JCT CTH B TO N, Waupaca, WI

Built 2009 Load: 48.6 t ADT: 6,100

CTH Q

Good

Over: ROUND LAKE

1.9M S JCT STH 54, Waupaca, WI

Built 2006 Load: 48.6 t ADT: 2,914

CTH K

Good

Over: N BR LITTLE WOLF RI

0.65 MI. N. RICH LAKE RD., Waupaca, WI

Built 2007 Load: 48.6 t ADT: 384

CTH-II

Good

Over: UNNAMED STREAM

7.0M E JCT USH 45, Winnebago, WI

Built 2004 Load: 48.6 t ADT: 2,300

LRD BLUFF DR

Good

Over: ROCKY RUN CREEK

0.7M W JCT STH 80, Wood, WI

Built 1982 Load: 48.6 t ADT: 201

LRD RIDGE RD

Good

Over: BR MOCCASIN CREEK

1.1M S JCT CTH Q, Wood, WI

Built 1987 Load: 48.6 t ADT: 306

LRD CHURCH RD

Good

Over: HEMLOCK CREEK

0.3M N JCT CTH N, Wood, WI

Built 2001 Load: 48.6 t ADT: 280

LRD 270TH AVE

Good

Over: BR CHIPPEWA RIVER

0.05M W JCT 770TH ST., Dunn, WI

Built 1992 Load: 48.6 t ADT: 108

LRD RAINBOW DR

Good

Over: COUNTY LINE CREEK

0.5M W JCT CTH K, Marathon, WI

Built 1928 Load: 48.6 t ADT: 170

LRD HOLSTEIN LA

Good

Over: ROCKY RUN

0.9M E JCT CTH H, Marathon, WI

Built 1904 Load: 48.6 t ADT: 60

LRD CHURCH RD

Good

Over: BR BIG SANDY CREEK

1.8M E JCT CTH Q, Marathon, WI

Built 1929 Load: 48.6 t ADT: 55

LRD N 45TH ST (DEA

Good

Over: MENOMONEE RIVER

0.7M W JCT USH 18, Milwaukee, WI

Built 1952 Load: 48.6 t ADT: 307

IH 41 NB OFF RAMP

Good

Over: LRD BADGERLAND DR.

US 41 BROWN COUNTY, Brown, WI

Built 2012 Load: 49.2 t ADT: 8,700

LRD EDGEWOOD DR

Good

Over: BR WISCONSIN RIVER

0.6M W JCT CTH Z, Adams, WI

Built 2009 Load: 50.2 t ADT: 164

LRD COUNTY LINE RD

Good

Over: BR KEWAUNEE RIVER

1.4M N JCT STH 54, Brown, WI

Built 1989 Load: 50.2 t ADT: 113

Showing 13,251-13,300 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.