State profile · Near national median SD

Wisconsin bridge safety

Condition ratings, load ratings, and structural-deficiency data for every public highway bridge in Wisconsin — drawn straight from the FHWA National Bridge Inventory.

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

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 rated 0-4

Structurally Deficient

6.1%

911 bridges flagged for repair priority

-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 — Structurally deficient share 20.4%
National avg

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

Condition Distribution

Bridge inventory deck-condition mix — Wisconsin (FHWA NBI)

Wisconsin41.2766817049357%33.10214800350145%GoodFairPoorStructurally Deficient
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 on the structurally deficient leaderboard (lower share = better)

States are ranked by share of bridges flagged structurally deficient — the FHWA classification for any span where deck, superstructure, or substructure carries a condition rating of 4 or below. Lower percentages indicate stronger maintenance funding and inspection follow-through. States here sit immediately above and below Wisconsin on the same metric.

28

Mississippi

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

45

South Carolina

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

55

Wisconsin

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

37

North Carolina

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

15

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 composite NBI rating. Each is inspected at least every 24 months.

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

Structurally Deficient

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

Structurally Deficient

Over: EVERGREEN CREEK

0.1M N JCT STH 64, Langlade, WI

Built 1916 Load: 3.2 t ADT: 6

LRD CORNELL LANE (

Structurally Deficient

Over: BR COON CREEK

0.1M E JCT USH 14, Vernon, WI

Built 1985 Load: 3.2 t ADT: 10

All Bridges in Wisconsin

LRD PETROWITZ RD

Good

Over: STEWARTS CREEK

0.1M N JCT CTH O, Juneau, WI

Built 2006 Load: 32.4 t ADT: 143

STH 50 WB-STH 83 N

Good

Over: SOO LINE RR

1.8M W JCT CTH B, Kenosha, WI

Built 1989 Load: 32.4 t ADT: 8,950

STH 50

Good

Over: STRAWBERRY CREEK

0.5 MI E JCT CTH MB, Kenosha, WI

Built 1989 Load: 32.4 t ADT: 18,400

CTH K

Good

Over: BRIGHTON CREEK

0.9M W JCT USH 45, Kenosha, WI

Built 1990 Load: 32.4 t ADT: 4,400

CTH N/38TH STREET

Good

Over: ROOT RIVER

AT ROOT RIVER, Kenosha, WI

Built 2021 Load: 32.4 t ADT: 2,570

CTH KD

Good

Over: NEW MUNSTER CREEK

0.1M N JCT STH 50, Kenosha, WI

Built 1993 Load: 32.4 t ADT: 1,200

STH 42/MAIN ST

Good

Over: AHNAPEE TRAIL

0.7M N JCT STH 29 TO W, Kewaunee, WI

Built 1977 Load: 32.4 t ADT: 5,700

STH 54

Good

Over: BR SCHOOL CREEK

1.5M E JCT CTH H, Kewaunee, WI

Built 1981 Load: 32.4 t ADT: 7,800

STH 54

Good

Over: LUXEMBURG CREEK

0.6M E JCT STH 163, Kewaunee, WI

Built 1981 Load: 32.4 t ADT: 7,400

STH 54

Good

Over: BR KEWAUNEE RIVER

3.2M E JCT CTH AB, Kewaunee, WI

Built 1982 Load: 32.4 t ADT: 5,300

CTH AB

Good

Over: N BR E TWIN RIVER

0.4M N JCT CTH BB, Kewaunee, WI

Built 1986 Load: 32.4 t ADT: 1,100

LRD LAKEVIEW RD

Good

Over: SANDY BAY CREEK

0.5M S JCT STH 42, Kewaunee, WI

Built 1986 Load: 32.4 t ADT: 91

STH 54

Good

Over: SCHOOL CREEK

1.9M E JCT CTH P TO N, Kewaunee, WI

Built 1997 Load: 32.4 t ADT: 7,800

STH 54

Good

Over: SCHOOL CREEK

TOWN OF LUXEMBURG, Kewaunee, WI

Built 1997 Load: 32.4 t ADT: 7,800

STH 57

Good

Over: UNNAMED STREAM

0.3M SOUTH OF MACCO RD, Kewaunee, WI

Built 2005 Load: 32.4 t ADT: 10,800

LRD BREIDEL COULEE

Good

Over: MORMAN CREEK

0.3M N JCT USH 14, La Crosse, WI

Built 1985 Load: 32.4 t ADT: 42

LRD RIVER VALLEY D

Good

Over: SOO LINE RR

0.7M N JCT CTH B, La Crosse, WI

Built 1989 Load: 32.4 t ADT: 6,600

CTH DH MAIN ST

Good

Over: HALFWAY CREEK

0.1M S JCT CTH V, La Crosse, WI

Built 1991 Load: 32.4 t ADT: 6,633

CTH B

Good

Over: BR CREAMERY CRK

2.6M W JCT CTH J, La Crosse, WI

Built 1998 Load: 32.4 t ADT: 600

STH 162

Good

Over: TRIB TO BURNS CR

0.1M N JCT CTH E, La Crosse, WI

Built 2008 Load: 32.4 t ADT: 5,000

IH 90 EB

Good

Over: MISSISSIPPI RIVER

AT MINN/WISC STATE LINE, La Crosse, WI

Built 2016 Load: 32.4 t ADT: 13,950

LRD CONOCO RD (DEA

Good

Over: FLOOD OVERBANK

NORTH OF RAILROAD CROSSIN, La Crosse, WI

Built 2005 Load: 32.4 t ADT: 300

STH 33

Good

Over: TRIBUTARY TO PAMMEL CREE

1.1 MI E. JCT HAGEN RD., La Crosse, WI

Built 2014 Load: 32.4 t ADT: 5,900

CTH DE

Good

Over: UNKNOWN WATERWAY

AT UNKNOWN WATERWAY, La Crosse, WI

Built 2013 Load: 32.4 t ADT: 428

CTH A

Good

Over: SAND CREEK

AT SAND CREEK, La Crosse, WI

Built 2014 Load: 32.4 t ADT: 150

CTH B

Good

Over: BR LA CROSSE RIVER

0.6M E JCT CTH C, La Crosse, WI

Built 2009 Load: 32.4 t ADT: 1,734

LRD WARD AVE

Good

Over: PAMMEL CREEK

0.6M S JCT STH 33, La Crosse, WI

Built 1979 Load: 32.4 t ADT: 4,100

STH 23

Good

Over: BR PECATONICA RIVER

1.4M E JCT CTH F TO E, Lafayette, WI

Built 1984 Load: 32.4 t ADT: 2,100

LRD CENTER DR

Good

Over: MADDEN BRANCH

0.9M W JCT CTH F, Lafayette, WI

Built 1985 Load: 32.4 t ADT: 127

LRD SUNNYDALE RD

Good

Over: MOUNDS BR PLATTE RIVER

0.3M S JCT CTH G, Lafayette, WI

Built 1985 Load: 32.4 t ADT: 127

USH STH 126 - N MO

Good

Over: BONNER BRANCH

0.4M S JCT USH 151, Lafayette, WI

Built 1986 Load: 32.4 t ADT: 2,500

CTH W

Good

Over: APPLE RIVER

1.2M W JCT CTH P TO N, Lafayette, WI

Built 1995 Load: 32.4 t ADT: 238

CTH W

Good

Over: BR APPLE RIVER

1.2M E JCT CTH A, Lafayette, WI

Built 1995 Load: 32.4 t ADT: 238

LRD MILLER LANE

Good

Over: CHERRY CREEK

0.2M S JCT CTH M, Lafayette, WI

Built 1991 Load: 32.4 t ADT: 112

LRD STATE LINE RD

Good

Over: INDIAN CREEK

0.2M E JCT CTH "D", Lafayette, WI

Built 1990 Load: 32.4 t ADT: 168

LRD DRYBONE RD

Good

Over: SPRING BRANCH CREEK

2.6M W JCT CTH O, Lafayette, WI

Built 1994 Load: 32.4 t ADT: 88

STH 81

Good

Over: APPLE BRANCH

1.9M E JCT CTH D, Lafayette, WI

Built 2001 Load: 32.4 t ADT: 1,000

LRD ST. ROSE ROAD

Good

Over: TR. FEVER RIVER

0.2M E JCT CTH H, Lafayette, WI

Built 1998 Load: 32.4 t ADT: 43

LRD JOHNSON RD

Good

Over: TRIB SHULLSBURG BR

1.2 M N JCT STH 11, Lafayette, WI

Built 2003 Load: 32.4 t ADT: 107

USH 151

Good

Over: GALENA R HEADWATERS

1.9M N GRANT CO LINE, Lafayette, WI

Built 2004 Load: 32.4 t ADT: 9,800

LRD BUNCOMBE RD

Good

Over: BR SCRABBLE CREEK

2.9M S JCT CTH W, Lafayette, WI

Built 2006 Load: 32.4 t ADT: 146

LRD FRITZGES RD

Good

Over: BROWN BRANCH

0.6M N JCT CTH DD, Lafayette, WI

Built 1936 Load: 32.4 t ADT: 58

CTH M

Good

Over: WOLF RIVER

0.1M W JCT STH 55, Langlade, WI

Built 1985 Load: 32.4 t ADT: 164

LRD LITTLE CHICAGO

Good

Over: E BR EAU CLAIRE RIVER

0.2M N JCT CTH C, Langlade, WI

Built 1986 Load: 32.4 t ADT: 277

CTH H

Good

Over: MCCLOUD CREEK

0.3M N JCT CTH J, Langlade, WI

Built 1987 Load: 32.4 t ADT: 199

LRD BLUE BELL ROAD

Good

Over: MCDOUGAL CREEK

1.7M E JCT CTH H, Langlade, WI

Built 1996 Load: 32.4 t ADT: 246

CTH S

Good

Over: BR RED RIVER

0.7M N JCT STH 47, Langlade, WI

Built 1974 Load: 32.4 t ADT: 1,202

LRD STONEY ROAD (D

Good

Over: SPRING CREEK

0.2M S JCT CTH X, Langlade, WI

Built 1990 Load: 32.4 t ADT: 156

LRD AXEN DRIVE

Good

Over: PRAIRIE RIVER

0.7M N JCT STH 17, Lincoln, WI

Built 1983 Load: 32.4 t ADT: 65

LRD 2ND AVE

Good

Over: BIG HAY MEADOW CREEK

1.3M E JCT STH 17, Lincoln, WI

Built 1986 Load: 32.4 t ADT: 81

Showing 9,001-9,050 of 14,851 bridges

Related

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Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges Editorial.

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). A "structurally deficient" rating is a repair-priority signal, not a closure or unsafe-to-cross designation. Consult a qualified civil engineer before making decisions based on this data.

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.