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 265TH AVE

Good

Over: BR RUSH COULEE CREEK

0.7M W JCT CTH S, Pierce, WI

Built 1994 Load: 37.3 t ADT: 27

LRD 170TH ST

Good

Over: BR EAU GALLE RIVER

0.2M S JCT CTH B, Pierce, WI

Built 1994 Load: 37.3 t ADT: 94

LRD 385TH ST

Good

Over: RUSH RIVER

0.1M S JCT CTH A, Pierce, WI

Built 1996 Load: 37.3 t ADT: 58

LRD PARK DRIVE (DE

Good

Over: BURQHARDT CREEK

0.1M W JCT STH 29, Pierce, WI

Built 2006 Load: 37.3 t ADT: 100

LRD 570TH AVE

Good

Over: DRY RUN COULEE CREEK

1.0M W JCT CTH QQ, Pierce, WI

Built 2005 Load: 37.3 t ADT: 100

LRD 740TH ST

Good

Over: BR TRIMBELLE RIVER

0.1M S JCT STH 65, Pierce, WI

Built 2005 Load: 37.3 t ADT: 179

LRD 90TH ST

Good

Over: BR BRUNNER VALLEY CREEK

0.4M N JCT CTH U, Pierce, WI

Built 2005 Load: 37.3 t ADT: 106

LRD 850TH STREET

Good

Over: S FK KINNICKINNIC RIVER

0.1M S JCT STH 29, Pierce, WI

Built 2004 Load: 37.3 t ADT: 537

CTH N

Good

Over: LOST CREEK

0.7M W JCT USH 63, Pierce, WI

Built 1988 Load: 37.3 t ADT: 494

LRD 590TH ST

Good

Over: S FK LOST CREEK

0.9M N JCT USH 63, Pierce, WI

Built 1988 Load: 37.3 t ADT: 16

LRD 130TH ST

Good

Over: WOOD RIVER

0.2M S JCT STH 35, Polk, WI

Built 1992 Load: 37.3 t ADT: 43

CTH E

Good

Over: APPLE RIVER

3.6M N JCT USH 8, Polk, WI

Built 2003 Load: 37.3 t ADT: 802

LRD SHARON WOOD RD

Good

Over: PLOVER RIVER

0.1M E JCT CTH Y, Portage, WI

Built 1992 Load: 37.3 t ADT: 20

STH 13/34

Good

Over: MILL CREEK

1.9M N JCT CTH M, Portage, WI

Built 1994 Load: 37.3 t ADT: 2,600

LRD BENTLEY RD

Good

Over: PLOVER RIVER

0.2M E JCT CTH Y, Portage, WI

Built 1996 Load: 37.3 t ADT: 297

LRD COUNTY ROAD R

Good

Over: CN RR

1.0M S JCT STH 10, Portage, WI

Built 1999 Load: 37.3 t ADT: 2,899

USH10 EB

Good

Over: TOMORROW RIVER

AT TOMORROW RIVER, Portage, WI

Built 2004 Load: 37.3 t ADT: 7,150

USH 10 WB

Good

Over: TOMORROW RIVER

AT TOMORROW RIVER, Portage, WI

Built 2004 Load: 37.3 t ADT: 7,300

CTH Q

Good

Over: TOMORROW RIVER

1.6M E JCT CTY KK, Portage, WI

Built 2008 Load: 37.3 t ADT: 1,705

STH 66

Good

Over: BRANCH ROCKY RUN CREEK

2.4 MI S. JCT USH 10, Portage, WI

Built 2004 Load: 37.3 t ADT: 3,600

CTH X

Good

Over: LITTLE EAU CLAIRE RIVER

0.3M N JCT CTH DB, Portage, WI

Built 2014 Load: 37.3 t ADT: 518

LRD LINDEN RD

Good

Over: FLUME CREEK

0.9M N JCT CTH T, Portage, WI

Built 2023 Load: 37.3 t ADT: 66

STH 13

Good

Over: S. FK JUMP RIVER

6.3M N JCT STH 86, Price, WI

Built 1979 Load: 37.3 t ADT: 1,900

LRD HALLSTRAND RD

Good

Over: LITTLE JUMP RIVER

2.1M N JCT STH 86, Price, WI

Built 1989 Load: 37.3 t ADT: 58

LRD EAST FLEMING R

Good

Over: BUTTERNUT CREEK

1.2M W JCT CTH E, Price, WI

Built 1993 Load: 37.3 t ADT: 74

LRD MUSSER DRIVE

Good

Over: BR MUSSER CREEK

0.8M W JCT CTH H, Price, WI

Built 2005 Load: 37.3 t ADT: 63

STH 36-STH 83 NB

Good

Over: WIND LAKE DRAINAGE CANAL

0.4M N JCT CTH D, Racine, WI

Built 1996 Load: 37.3 t ADT: 9,200

LRD HORLICK DR -

Good

Over: ROOT RIVER

0.5M S JCT STH 38, Racine, WI

Built 2004 Load: 37.3 t ADT: 1,483

LRD TWO MILE ROAD

Good

Over: E BR ROOT VIER CANAL

2.4 M E JCT. CTH U, Racine, WI

Built 2004 Load: 37.3 t ADT: 931

CTH S

Good

Over: CROSS CANAL

1.0M N WASHINGTON AVE., Racine, WI

Built 2006 Load: 37.3 t ADT: 660

CTH J

Good

Over: HOOSIER CREEK CANAL

1.1 M SOUTH OF STH 11, Racine, WI

Built 2008 Load: 37.3 t ADT: 1,500

LRD MALCHINE RD

Good

Over: WIND LAKE DRAINAGE CANAL

1.5M W JCT CTH S, Racine, WI

Built 2016 Load: 37.3 t ADT: 670

LRD SEVEN MILE RD

Good

Over: ROOT RIVER

1.9M E JCT STH 38, Racine, WI

Built 1962 Load: 37.3 t ADT: 1,700

USH 14

Good

Over: MILL CREEK

2.4M E JCT CTH KK, Richland, WI

Built 1990 Load: 37.3 t ADT: 2,900

STH 60

Good

Over: RIVERVIEW CREEK

2.5M E JCT CTH OO, Richland, WI

Built 1994 Load: 37.3 t ADT: 1,400

STH 171

Good

Over: BR KNAPP CREEK

X.X M W JCT CTH U TO N, Richland, WI

Built 1994 Load: 37.3 t ADT: 350

LRD WALSH CREEK LA

Good

Over: CAZENOVIA BRANCH

0.1M S JCT CTH V, Richland, WI

Built 1991 Load: 37.3 t ADT: 20

LRD PLINER LANE (D

Good

Over: MELANCTHON CREEK

0.1M W JCT STH 80, Richland, WI

Built 1994 Load: 37.3 t ADT: 310

LRD BENBEN LN (DEA

Good

Over: WILLOW CREEK

0.1M W JCT STH 58, Richland, WI

Built 1992 Load: 37.3 t ADT: 20

LRD SLEEPY HOLLOW

Good

Over: BR MILL CREEK

0.1M S JCT CTH E, Richland, WI

Built 1992 Load: 37.3 t ADT: 10

CTH H

Good

Over: CHAMPION VALLEY CREEK

0.3M W JCT CTH C, Richland, WI

Built 1992 Load: 37.3 t ADT: 152

LRD MERRY HILL DR

Good

Over: BR FANCY CREEK

0.3M W JCT STH 56, Richland, WI

Built 1992 Load: 37.3 t ADT: 56

USH 14-STH 60

Good

Over: BEAR CREEK

2.9M E JCT STH 60 TO W, Richland, WI

Built 1994 Load: 37.3 t ADT: 5,400

LRD HIDDEN VALLEY

Good

Over: HORSE CREEK

0.1M S JCT CTH A, Richland, WI

Built 1994 Load: 37.3 t ADT: 88

STH 60

Good

Over: KNAPP CREEK

0.1M E JCT CTH W, Richland, WI

Built 1998 Load: 37.3 t ADT: 1,300

CTH II

Good

Over: CAZENOVIA BRANCH

0.2M W JCT CTH V, Richland, WI

Built 1993 Load: 37.3 t ADT: 316

CTH H

Good

Over: BR GAULT HOLLOW CREEK

0.6M S JCT CTH I, Richland, WI

Built 1994 Load: 37.3 t ADT: 185

LRD OLD COUNTY FAR

Good

Over: W BR PINE RIVER

0.1M S JCT CTH D, Richland, WI

Built 1994 Load: 37.3 t ADT: 44

LRD NORWEGIAN CHUR

Good

Over: LITTLE BARABOO RIVER

1.5M N JCT STH 58, Richland, WI

Built 1994 Load: 37.3 t ADT: 1

LRD BYRDS CREEK VA

Good

Over: BYRDS CREEK

2.2M NORTH OF STH 60, Richland, WI

Built 1994 Load: 37.3 t ADT: 53

Showing 11,551-11,600 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.