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

CTH CH

Good

Over: TAGATZ CREEK

0.3M N OF DOVER, Marquette, WI

Built 2004 Load: 42.1 t ADT: 1,070

LRD E PLEASANT ST

Good

Over: MILWAUKEE RIVER

0.5M N JCT USH 18, Milwaukee, WI

Built 1972 Load: 42.1 t ADT: 7,725

LRD CANAL ST

Good

Over: CANADIAN PACIFIC RR

0.5 M W OF RNDABT AT 2, Milwaukee, WI

Built 2006 Load: 42.1 t ADT: 10,004

LRD N HUMBOLDT AVE

Good

Over: MILWAUKEE RIVER

0.4M N JCT STH 32, Milwaukee, WI

Built 2010 Load: 42.1 t ADT: 10,600

LRD W CAMERON AVE

Good

Over: LINCOLN CREEK

1.0M W JCT STH 57, Milwaukee, WI

Built 1961 Load: 42.1 t ADT: 3,300

STH 131

Good

Over: KICKAPOO RIVER

3.6M N JCT CTH T, Monroe, WI

Built 1991 Load: 42.1 t ADT: 1,400

STH 21

Good

Over: BRANCH LEMONWEIR CREEK

2.6M E JCT STH 173, Monroe, WI

Built 2000 Load: 42.1 t ADT: 4,700

STH 27

Good

Over: LITTLE LACROSSE R

1.7M N JCT CTH J, Monroe, WI

Built 2005 Load: 42.1 t ADT: 6,100

CTH J

Good

Over: PLEASANT VALLEY CR

2.7 MI W STH 27, Monroe, WI

Built 2004 Load: 42.1 t ADT: 376

CTH M

Good

Over: SLEIGHTON CREEK

0.2M N JCT CTH MM, Monroe, WI

Built 2007 Load: 42.1 t ADT: 182

CTH XX

Good

Over: BR LITTLE LACROSSE RIVER

1.9M W JCT CTH U, Monroe, WI

Built 1992 Load: 42.1 t ADT: 163

LRD DELLVIEW RD

Good

Over: SOPER CREEK

0.9M E JCT CTH B, Monroe, WI

Built 1992 Load: 42.1 t ADT: 23

LRD HAVEN AVE

Good

Over: BR SILVER CREEK

0.1M W JCT CTH AA, Monroe, WI

Built 1995 Load: 42.1 t ADT: 276

LRD S PORCUPINE LA

Good

Over: KELLY BROOK

1.4M S JCT CTH A, Oconto, WI

Built 1992 Load: 42.1 t ADT: 50

LRD BLUE LAKE RD

Good

Over: TOMAHAWK RIVER

4.9M W JCT USH 51, Oneida, WI

Built 1990 Load: 42.1 t ADT: 283

CTH G ONEIDA AVE

Good

Over: PELICAN RIVER

0.3M S JCT USH 8, Oneida, WI

Built 1992 Load: 42.1 t ADT: 3,000

CTH W

Good

Over: BEAR CREEK OVERFLOW

1.9M S JCT STH 76, Outagamie, WI

Built 1991 Load: 42.1 t ADT: 266

LRD LIGHTNING DRIV

Good

Over: AAL TRIBUTARY

0.3M N OF USH 41, Outagamie, WI

Built 2001 Load: 42.1 t ADT: 1,396

LRD CENTER VALLEY

Good

Over: DUCK CREEK

0.1M E JCT CTH EE, Outagamie, WI

Built 2010 Load: 42.1 t ADT: 353

LRD COLLEGE AVE

Good

Over: FOX RIVER

1.2M E JCT USH 10, Outagamie, WI

Built 2009 Load: 42.1 t ADT: 34,155

CTH G

Good

Over: ARKANSAW CREEK

0.2M S JCT CTH Z, Pepin, WI

Built 1991 Load: 42.1 t ADT: 93

USH 10

Good

Over: EAU GALLE RIVER

0.5M E JCT CTH D, Pepin, WI

Built 1994 Load: 42.1 t ADT: 3,000

LRD KOTHBAUER RD

Good

Over: BEAR CREEK SWAMP INLET

0.3M N. JCT USH 10, Pepin, WI

Built 1999 Load: 42.1 t ADT: 54

LRD BYINGTON RD

Good

Over: LITTLE PLUM CR.

1/2 MI. SOUTH OF N, Pepin, WI

Built 2005 Load: 42.1 t ADT: 35

STH 35

Good

Over: WIND RIVER

1.7M N JCT CTH OO, Pierce, WI

Built 1971 Load: 42.1 t ADT: 2,700

LRD 690TH AVE

Good

Over: CAVE CREEK

0.8M E JCT CTH BB, Pierce, WI

Built 1996 Load: 42.1 t ADT: 93

CTH O

Good

Over: TRIMBELLE RIVER

0.9MI SOUTH OF USH 10, Pierce, WI

Built 2003 Load: 42.1 t ADT: 244

CTH B MCCAY AVE

Good

Over: BURGHARDT CREEK

0.1M N JCT STH 29, Pierce, WI

Built 2006 Load: 42.1 t ADT: 1,313

LRD 630TH AVE

Good

Over: BR EAU GALLE RIVER

0.1M N JCT STH 72, Pierce, WI

Built 2008 Load: 42.1 t ADT: 104

CTH G

Good

Over: BR RUSH RIVER

0.1M W JCT CTH N TO W, Pierce, WI

Built 1986 Load: 42.1 t ADT: 267

LRD 10TH AVE

Good

Over: ELK CREEK

2.0M E JCT CTH SS, Pierce, WI

Built 1986 Load: 42.1 t ADT: 57

LRD 570TH AVE

Good

Over: DRY RUN

0.1M W JCT CTH O, Pierce, WI

Built 1986 Load: 42.1 t ADT: 57

LRD 730TH ST

Good

Over: DRY RUN

1.7M N JCT CTH C, Pierce, WI

Built 1989 Load: 42.1 t ADT: 56

CTH N

Good

Over: DRY RUN

0.5M W JCT USH 63, Pierce, WI

Built 1988 Load: 42.1 t ADT: 494

LRD 610TH STREET

Good

Over: BR LOST CREEK

1.5M N JCT USH 63, Pierce, WI

Built 1991 Load: 42.1 t ADT: 168

LRD 1090TH STREET

Good

Over: BR KINNICKINNIC RIVER

0.1M S JCT CTH FF, Pierce, WI

Built 1992 Load: 42.1 t ADT: 225

STH 65

Good

Over: APPLE RIVER

2.5M N JCT CTH C, Polk, WI

Built 1985 Load: 42.1 t ADT: 1,300

LRD 85TH STREET

Good

Over: BEAVER BROOK

0.7M W JCT CTH JJ, Polk, WI

Built 1992 Load: 42.1 t ADT: 954

LRD 280TH AVE (DEA

Good

Over: TRADE RIVER

0.3M W JCT CTH B, Polk, WI

Built 1996 Load: 42.1 t ADT: 10

CTH B

Good

Over: WISCONSIN CENTRAL RR

0.3M NE JCT USH 10, Portage, WI

Built 2006 Load: 42.1 t ADT: 1,243

CTH DD

Good

Over: WAUPACA RIVER

0.1M E JCT CTH D, Portage, WI

Built 2003 Load: 42.1 t ADT: 273

STH 13/34

Good

Over: CNRR

0.2M S OF USH10, Portage, WI

Built 2011 Load: 42.1 t ADT: 2,600

LRD 95TH ST

Good

Over: BUENA VISTA CREEK

0.5M S JCT CTH FF, Portage, WI

Built 2022 Load: 42.1 t ADT: 100

LRD MORNER RD

Good

Over: DOUGLAS CREEK

1.3M W JCT CTH C, Price, WI

Built 1988 Load: 42.1 t ADT: 56

LRD TROUT RD

Good

Over: BUTTERNUT CREEK

0.1M S JCT CTH B, Price, WI

Built 1993 Load: 42.1 t ADT: 35

LRD HILLCREST RD

Good

Over: LITTLE ELK RIVER

1.1M N JCT CTH D, Price, WI

Built 1993 Load: 42.1 t ADT: 43

STH 11 EB

Good

Over: JW PETERS CONVEYOR

1.8 MI W JCT STH 83, Racine, WI

Built 2008 Load: 42.1 t ADT: 3,750

STH 11/STH 36 WB

Good

Over: JW PETERS CONVEYOR

1.8 MI W OF JCT STH 83, Racine, WI

Built 2008 Load: 42.1 t ADT: 3,750

LRD CUNNINGHAM LN

Good

Over: PINE RIVER

0.2M E JCT STH 80, Richland, WI

Built 1988 Load: 42.1 t ADT: 10

LRD HOOD HOLLOW LN

Good

Over: MILL CREEK

0.2M E JCT CTH E, Richland, WI

Built 1987 Load: 42.1 t ADT: 20

Showing 13,051-13,100 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.