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 220TH STREET

Good

Over: BIG DRYWOOD CREEK

0.2 M N CTH O, Chippewa, WI

Built 1997 Load: 34.0 t ADT: 80

STH 29 EB

Good

Over: PAINT CREEK

3.9M E JCT CTH J, Chippewa, WI

Built 1993 Load: 34.0 t ADT: 9,350

LRD 30TH STREET

Good

Over: BRANCH SAND CREEK

0.5 MILES NORTH OF CTH M, Chippewa, WI

Built 1994 Load: 34.0 t ADT: 140

STH 29WB

Good

Over: UP RAILROAD

1.7M W XING CTH P, Chippewa, WI

Built 2004 Load: 34.0 t ADT: 7,200

CTH J

Good

Over: FREDERICK CREEK

2305" EAST OF 172ND STREE, Chippewa, WI

Built 2003 Load: 34.0 t ADT: 860

LRD CHILL ROAD

Good

Over: WEDGES CREEK

3.4M W JCT CTH G, Clark, WI

Built 1987 Load: 34.0 t ADT: 34

LRD ROBIN AVE

Good

Over: JACK CREEK

0.1M S JCT USH 10, Clark, WI

Built 1987 Load: 34.0 t ADT: 57

LRD PELSDORF AVE

Good

Over: S. FK. POPPLE RIVER

0.6M N JCT CTH N, Clark, WI

Built 1988 Load: 34.0 t ADT: 57

LRD BOBWHITE RD

Good

Over: E BR WEDGES CREEK

0.8M E JCT CTH G, Clark, WI

Built 1988 Load: 34.0 t ADT: 29

LRD RIVER AVE

Good

Over: BR BLACK RIVER

2.5M S JCT CTH N, Clark, WI

Built 1989 Load: 34.0 t ADT: 36

CTH X

Good

Over: N FK EAU CLAIRE RIVER

2.9M W JCT STH 73, Clark, WI

Built 1990 Load: 34.0 t ADT: 1,615

LRD OWEN AVE

Good

Over: JACK CREEK

1.2M S JCT USH 10, Clark, WI

Built 1989 Load: 34.0 t ADT: 107

LRD MILLER ROAD

Good

Over: JACK CREEK

1.8M S JCT USH 10, Clark, WI

Built 1992 Load: 34.0 t ADT: 58

LRD BACHELORS RD

Good

Over: S FK EAU CLAIRE RIVER

0.7M S JCT CTH MM, Clark, WI

Built 1994 Load: 34.0 t ADT: 222

LRD BALLARD RD

Good

Over: HAY CR

1.7M W JCT CTH Z, Clark, WI

Built 2009 Load: 34.0 t ADT: 103

CTH A

Good

Over: N FORK POPPLE RIVER

TOWN OF MAYVILLE, Clark, WI

Built 2000 Load: 34.0 t ADT: 978

CTH K

Good

Over: N BR ONEIL CREEK

0.6M S JCT CTH C, Clark, WI

Built 2001 Load: 34.0 t ADT: 569

CTH K

Good

Over: CUNNINGHAM CREEK

2.5M N JCT STH 73, Clark, WI

Built 2002 Load: 34.0 t ADT: 319

LRD SCHOFIELD RD

Good

Over: CAWLEY CREEK

0.5M W JCT STH 73, Clark, WI

Built 2003 Load: 34.0 t ADT: 79

LRD CATLIN AVE

Good

Over: ROCK CREEK

1.8M S JCT STH 98, Clark, WI

Built 1974 Load: 34.0 t ADT: 58

LRD PRAY AVE

Good

Over: JACK CREEK

1.5M S JCT USH 10, Clark, WI

Built 1908 Load: 34.0 t ADT: 92

CTH U

Good

Over: BARABOO RIVER

1.8M S JCT STH 33, Columbia, WI

Built 1997 Load: 34.0 t ADT: 132

LRD SAUER RD

Good

Over: CANADIAN PACIFIC RR

0.4M E JCT CTH CD, Columbia, WI

Built 2005 Load: 34.0 t ADT: 95

LRD FAIR ST

Good

Over: SPRING CREEK

0.1M E JCT STH 113, Columbia, WI

Built 2007 Load: 34.0 t ADT: 1,500

USH 51

Good

Over: ROCKY RUN CREEK

1.2M N JCT CTH B, Columbia, WI

Built 2020 Load: 34.0 t ADT: 4,200

STH 16 E

Good

Over: CRAWFISH RIVER

1.3M E JCT CTH D, Columbia, WI

Built 2022 Load: 34.0 t ADT: 11,700

STH 35

Good

Over: DU CHARME CREEK

0.1M N JCT CTH D, Crawford, WI

Built 1986 Load: 34.0 t ADT: 2,400

LRD COOLEY CREEK R

Good

Over: BR COOLEY CREEK

4.6M N JCT STH 35, Crawford, WI

Built 1986 Load: 34.0 t ADT: 28

LRD VINEYARD RD

Good

Over: VINEYARD COULEE CREEK

1.6M N JCT USH 18, Crawford, WI

Built 1991 Load: 34.0 t ADT: 136

USH 61-PINE ST

Good

Over: BAKER CREEK

1.5M N JCT CTH H, Crawford, WI

Built 2011 Load: 34.0 t ADT: 2,300

LRD BYERS RD

Good

Over: RICHLAND CREEK

1.1M N JCT USH 61, Crawford, WI

Built 1992 Load: 34.0 t ADT: 90

STH 60

Good

Over: UNNAMED CREEK

0.9M E JCT STH 131, Crawford, WI

Built 2001 Load: 34.0 t ADT: 2,100

LRD HANEY VALLEY R

Good

Over: BR KICKAPOO RIVER

0.8M W JCT STH 131, Crawford, WI

Built 1995 Load: 34.0 t ADT: 82

LRD VANCE RD (DEAD

Good

Over: BEAR CREEK

TOWN OF CLAYTON, Crawford, WI

Built 1998 Load: 34.0 t ADT: 10

LRD PHILLIPS DR. (

Good

Over: TROUT CREEK

2.3M E JCT USH 61, Crawford, WI

Built 1999 Load: 34.0 t ADT: 10

STH 171

Good

Over: COPPER CR

5.3M E JCT STH 35, Crawford, WI

Built 2002 Load: 34.0 t ADT: 340

LRD WEE DRIVE (DEA

Good

Over: TAINTER CREEK

0.1M S JCT CTH B, Crawford, WI

Built 2000 Load: 34.0 t ADT: 1

LRD NORWEGIAN HOLL

Good

Over: BR JOHNSON VALLEY CREEK

1.1M N JCT CTH C, Crawford, WI

Built 2003 Load: 34.0 t ADT: 196

LRD TECUMSEH AVE

Good

Over: LAGOON DU SUD

1.7M N JCT USH 12, Dane, WI

Built 1984 Load: 34.0 t ADT: 161

USH 18 WB-USH 151

Good

Over: BIKE PATH AND TEMP ROAD

0.5M W JCT USH 12 TO W, Dane, WI

Built 1985 Load: 34.0 t ADT: 29,300

LRD VINBURN RD

Good

Over: MAUNESHA RIVER

2.3M E JCT CTH N, Dane, WI

Built 1994 Load: 34.0 t ADT: 82

CTH PD

Good

Over: SUGAR RIVER

1.1M E JCT CTH J, Dane, WI

Built 1998 Load: 34.0 t ADT: 3,878

IH 94 WB

Good

Over: DRAINAGE DITCH

2.6M W JCT STH 73 TO N, Dane, WI

Built 2020 Load: 34.0 t ADT: 21,200

LRD AUSTIN RD

Good

Over: CRAWFISH RIVER

0.2M W JCT CTH BB, Dodge, WI

Built 1983 Load: 34.0 t ADT: 69

STH 67

Good

Over: DAVY CREEK

1.8M N JCT CTH CW, Dodge, WI

Built 1999 Load: 34.0 t ADT: 7,500

CTH G

Good

Over: CNW RR

0.3M W JCT STH 73, Dodge, WI

Built 1995 Load: 34.0 t ADT: 386

CTH Y

Good

Over: GILL CREEK

0.3M W JCT CTH V, Dodge, WI

Built 2001 Load: 34.0 t ADT: 530

LRD MAPLE/OREGON S

Good

Over: STURGEON BAY

1.0M N JCT STH 42, Door, WI

Built 2008 Load: 34.0 t ADT: 5,700

LRD MAPLE/OREGON S

Good

Over: STURGEON BAY

1.0M N JCT STH 42, Door, WI

Built 2008 Load: 34.0 t ADT: 5,700

LRD MAPLE/OREGON S

Good

Over: STURGEON BAY

1.0M N JCT STH 42, Door, WI

Built 2008 Load: 34.0 t ADT: 5,700

Showing 9,701-9,750 of 14,851 bridges

Related

All states → | National rankings → | Understanding conditions → | SD bridges explained →
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.