State profile · Near median Poor share

Wisconsin bridge safety

Condition ratings, load ratings, and Poor-condition data for every public highway bridge in Wisconsin, based on the FHWA National Bridge Inventory.

14,851
Public bridges
41.3%
Good condition
6.1%
Poor condition

Data updated May 2026

Total Bridges

14,851

Public highway bridges in Wisconsin

Good Condition

41.3%

6,130 bridges rated 7-9

-8.7pp vs 50% benchmark

Poor Condition

6.1%

911 bridges whose lowest applicable component is rated 0-4

-0.9pp vs national avg 7.0%

Wisconsin vs national bridge condition

Wisconsin - Good condition share 41.3%
National avg

Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).

Wisconsin - Poor-condition share 20.4%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.

Condition Distribution

Wisconsin51.3%41.1%GoodFairPoor
Bridge inventory deck-condition mix - Wisconsin (FHWA NBI)

Counties (72)

Adams 43 Ashland 92 Barron 321 Bayfield 103 Brown 478 Buffalo 239 Burnett 68 Calumet 63 Chippewa 366 Clark 297 Columbia 191 Crawford 212 Dane 624 Dodge 219 Door 32 Douglas 143 Dunn 252 Eau Claire 242 Florence 20 Fond du Lac 256 Forest 54 Grant 385 Green 249 Green Lake 50 Iowa 212 Iron 52 Jackson 220 Jefferson 186 Juneau 174 Kenosha 121 Kewaunee 93 La Crosse 250 Lafayette 217 Langlade 78 Lincoln 158 Manitowoc 272 Marathon 534 Marinette 136 Marquette 85 Menominee 25 Milwaukee 1005 Monroe 385 Oconto 149 Oneida 64 Outagamie 300 Ozaukee 107 Pepin 57 Pierce 248 Polk 77 Portage 192 Price 104 Racine 143 Richland 298 Rock 325 Rusk 152 Sauk 277 Sawyer 98 Shawano 162 Sheboygan 249 St. Croix 308 Taylor 176 Trempealeau 260 Vernon 333 Vilas 29 Walworth 209 Washburn 54 Washington 166 Waukesha 380 Waupaca 172 Waushara 54 Winnebago 264 Wood 242

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.

MS

Mississippi

5.92% top marginal rate
Structure
Progressive
Burden @ $100K
$16,823

SC

South Carolina

6.10% top marginal rate
Structure
Progressive
Burden @ $100K
$5,396
Selected

WI

Wisconsin

6.13% top marginal rate
Structure
Progressive
Burden @ $100K
$14,851

NC

North Carolina

6.16% top marginal rate
Structure
Progressive
Burden @ $100K
$18,901

HI

Hawaii

6.47% top marginal rate
Structure
Progressive
Burden @ $100K
$1,206

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 MARKET RD

Poor

Over: BEAR CREEK

1.2M N JCT STH 76, Outagamie, WI

Built 1958 Load: 1.6 t ADT: 1,175

LRD WOODFORD DR

Poor

Over: RAILS TO TRAILS TRAIL

0.3M E JCT USH 45, Washington, WI

Built 1910 Load: 1.6 t ADT: 47

LRD ACCESS RD

Poor

Over: MENASHA CHANNEL

ACCESS TO PARKING LOT BY, Winnebago, WI

Built 1960 Load: 1.6 t ADT: 20

CTH A

Poor

Over: UNION PACIFIC RR

1.0M W JCT STH 73, Columbia, WI

Built 1910 Load: 3.2 t ADT: 197

LRD OLD 64 (DEAD E

Poor

Over: EVERGREEN CREEK

0.1M N JCT STH 64, Langlade, WI

Built 1916 Load: 3.2 t ADT: 6

LRD CORNELL LANE (

Poor

Over: BR COON CREEK

0.1M E JCT USH 14, Vernon, WI

Built 1985 Load: 3.2 t ADT: 10

All Bridges in Wisconsin

IH-43 SB

Unknown

Over: STH 145

AT IH 43, Milwaukee, WI

Built 2005 ADT: 20,700

LRD WALNUT ST

Unknown

Over: IH 43

AT WALNUT ST, Milwaukee, WI

Built 2006 ADT: 148,000

BRADY ST PEDESTRIA

Unknown

Over: LRD LINCOLN MEMORIAL DR

AT BRADY ST, Milwaukee, WI

Built 2005 ADT: 29,800

LRD N HUMBOLDT AVE

Unknown

Over: LRD N RIVERBOAT RD

AT INTERSECTION, Milwaukee, WI

Built 2010 ADT: 500

KK RIVER TRAIL

Unknown

Over: STH 38/CHASE AVE

AT KK RIVER TRAIL, Milwaukee, WI

Built 2012 ADT: 10,700

STH 100 EB - BROWN

Unknown

Over: IH 43

MILWAUKEE COUNTY, Milwaukee, WI

Built 2010 ADT: 82,400

STH 100-WB BROWN D

Unknown

Over: IH 43

MILWAUKEE COUNTY, Milwaukee, WI

Built 2010 ADT: 82,400

CTH PP EB/GOOD HOP

Unknown

Over: IH 43

MILWAUKEE COUNTY, Milwaukee, WI

Built 2010 ADT: 96,700

CTH PP WB - GOOD H

Unknown

Over: IH 43

MILWAUKEE COUNTY, Milwaukee, WI

Built 2010 ADT: 96,700

OAK LEAF TRAIL

Unknown

Over: STH EAST CAPITOL DRIVE

2.1M E XING OF IH43, Milwaukee, WI

Built 2010 ADT: 24,200

USH 45/ STH 100 NB

Unknown

Over: CTH BB - RAWSON AVE

AT USH45, Milwaukee, WI

Built 2012 ADT: 3,500

USH 45 SB - STH 10

Unknown

Over: CTH BB (RAWSON AVE)

AT INTERSECTION, Milwaukee, WI

Built 2011 ADT: 3,500

HANK AARON STATE T

Unknown

Over: LRD HAWLEY RD

AT HANK AARON TRAIL, Milwaukee, WI

Built 2013 ADT: 25,100

LRD DREXEL AVE

Unknown

Over: IH 41/94

AT DREXEL AVENUE, Milwaukee, WI

Built 2012 ADT: 137,000

STH 181-N 76TH ST

Unknown

Over: LRD W SILVER SPRING DRIV

0.3M E JCT STH 145, Milwaukee, WI

Built 2017 ADT: 26,600

LRD PERIMETER ROAD

Unknown

Over: CTH ZZ

1.0 M EAST OF USH41, Milwaukee, WI

Built 2012 ADT: 16,600

STH 59/GREENFIELD

Unknown

Over: IH 41/894/USH 45

AT STH59, Milwaukee, WI

Built 2013 ADT: 160,000

STH 100 SB

Unknown

Over: IH 94

.4 MI S OF USH 18, Milwaukee, WI

Built 2014 ADT: 150,000

STH 100 NB

Unknown

Over: IH 94

0.4 MI S OF USH 18, Milwaukee, WI

Built 2014 ADT: 150,000

LRD (GMIA) AIRPORT

Unknown

Over: STH 38/HOWELL AVE

0.6 MI NORTH STH38, Milwaukee, WI

Built 2014 ADT: 23,600

UPRR

Unknown

Over: IH 94, RAMPS SB, WS, SA

AT UP RR, Milwaukee, WI

Built 2014 ADT: 161,000

LRD SWAN BLVD

Unknown

Over: IH 41/USH 45

AT SWAN BLVD, Milwaukee, WI

Built 2013 ADT: 171,000

IH RAMP, WATERTOWN

Unknown

Over: IH 41/USH 45

0.4 MI N JCT USH 18, Milwaukee, WI

Built 2014 ADT: 171,000

IH RAMP, IH 41/USH

Unknown

Over: LRD WATERTOWN PLANK RD

AT IH 41 SB, Milwaukee, WI

Built 2014 ADT: 19,300

IH RAMP, WATERTOWN

Unknown

Over: LRD WATERTOWN PLANK RD

AT IH 41, Milwaukee, WI

Built 2014 ADT: 19,300

IH 41/USH 45 SB

Unknown

Over: LRD WATERTOWN PLANK ROAD

AT IH 41 SB, Milwaukee, WI

Built 2014 ADT: 32,300

IH 41 NB/USH 45 NB

Unknown

Over: LRD WATERTOWN PLANK ROAD

AT IH 41, Milwaukee, WI

Built 2014 ADT: 32,400

IH RAMP, WATERTOWN

Unknown

Over: LRD WATERTOWN PLANK RD

0.6 M E JCT STH 100, Milwaukee, WI

Built 2014 ADT: 32,400

IH RAMP, IH 41/US

Unknown

Over: LRD WATERTOWN PLANK RD

AT IH 41 NB OFFRAMP, Milwaukee, WI

Built 2014 ADT: 32,400

IH RAMP, WATERTOWN

Unknown

Over: IH 41/USH 45 NB

UNDER WATER TOWN PLANK RO, Milwaukee, WI

Built 2014 ADT: 77,500

PEDESTRIAN

Unknown

Over: LRD WATERTOWN PLANK ROAD

0.6 MI E JCT IH 41, Milwaukee, WI

Built 2015 ADT: 22,600

LRD S 76TH ST

Unknown

Over: IH 94

0.6M E JCT STH 181 TO N, Milwaukee, WI

Built 2014 ADT: 168,000

IH RAMP IH 94 EB T

Unknown

Over: IH RAMP IH41 SB TO STH 5

0.5 MI E JCT STH 100, Milwaukee, WI

Built 2016 ADT: 3,000

IH RAMP, IH 94 EB

Unknown

Over: LRD RAMP, STH 100 - IH 9

ZOO INTERCHANGE, Milwaukee, WI

Built 2016 ADT: 4,200

IH 41 SB/USH 45 SB

Unknown

Over: IH 94

LOCATION UNKNOWN, PLEASE, Milwaukee, WI

Built 2017 ADT: 84,400

IH 41/USH 45 NB

Unknown

Over: IH 94 EB

AT USH 45 NB, Milwaukee, WI

Built 2015 ADT: 84,400

IH RAMP IH 41 SB T

Unknown

Over: LRD W NORTH AVE

AT IH 41 SB, Milwaukee, WI

Built 2023 ADT: 25,250

IH 41/USH 45 SB-ZO

Unknown

Over: LRD W NORTH AVE

0.2M W JCT STH 100, Milwaukee, WI

Built 2023 ADT: 22,700

IH 41/USH 45 NB-ZO

Unknown

Over: LRD NORTH AVE

0.2M W JCT STH 100, Milwaukee, WI

Built 2022 ADT: 22,700

IH RAMP, IH 41/USH

Unknown

Over: LRD W SCHLINGER AVE

1 MM W JCT STH 181, Milwaukee, WI

Built 2018 ADT: 2,500

IH RAMP, IH 94 EB

Unknown

Over: LRD W SCHLINGER AVE

1 M W JCT STH 181, Milwaukee, WI

Built 2016 ADT: 2,500

IH 41 SB/IH 894EB/

Unknown

Over: LRD W SCHLINGER AVE

1M W JCT STH 181, Milwaukee, WI

Built 2016 ADT: 2,500

IH 41/USH 45 NB/IH

Unknown

Over: LRD W SCHLINGER AVE

1M W JCT STH 181, Milwaukee, WI

Built 2015 ADT: 3,200

IH RAMP, STH 59-IH

Unknown

Over: LRD SCHLINGER AVE

1 M W JCT STH 181, Milwaukee, WI

Built 2014 ADT: 2,500

LRD ELM RD

Unknown

Over: IH 41/IH 94

1.5M W STH 38, Milwaukee, WI

Built 2019 ADT: 102,000

IH 41 NB/IH 94 WB

Unknown

Over: LRD OAKWOOD RD

0.7M E JCT USH 41, Milwaukee, WI

Built 2019 ADT: 4,500

IH 41 SB/IH 94 EB

Unknown

Over: LRD OAKWOOD RD

0.7M E JCT USH 41, Milwaukee, WI

Built 2019 ADT: 5,200

STH 100/RYAN RD

Unknown

Over: IH 41/94

X6.4M E JCT IH 894 (B), Milwaukee, WI

Built 2018 ADT: 124,000

LRD RAWSON AVE (CT

Unknown

Over: IH 41/94

3.1M W JCT STH 100, Milwaukee, WI

Built 2013 ADT: 138,000

LRD COLLEGE AVENUE

Unknown

Over: IH 41/94

AT COLLEGE AVE, Milwaukee, WI

Built 2009 ADT: 147,200

Showing 1,651-1,700 of 14,851 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.

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.