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 CLARA BARTON R

Good

Over: AMNICON RIVER

1.4M E JCT CTH B, Douglas, WI

Built 1997 Load: 40.5 t ADT: 43

STH 27

Good

Over: LITTLE BRULE RIVER

8.5M N. JCT CTH N, Douglas, WI

Built 2001 Load: 40.5 t ADT: 800

LRD 100TH ST

Good

Over: BOLEN CREEK

0.1M S JCT STH 64, Dunn, WI

Built 1991 Load: 40.5 t ADT: 76

LRD 210TH ST

Good

Over: KNIGHTS CREEK

0.2M S JCT CTH X, Dunn, WI

Built 1991 Load: 40.5 t ADT: 50

CTH K

Good

Over: ANNIS CREEK

1.8M N JCT USH 12, Dunn, WI

Built 1991 Load: 40.5 t ADT: 537

LRD 770TH AVE

Good

Over: WILSON CREEK

0.4M N JCT USH 12, Dunn, WI

Built 1996 Load: 40.5 t ADT: 108

STH 64

Good

Over: LITTLE BEAVER CREEK

2.9M E JCT CTH O, Dunn, WI

Built 1997 Load: 40.5 t ADT: 990

CTH K

Good

Over: GILBERT CREEK

0.4M S JCT STH 29, Dunn, WI

Built 1995 Load: 40.5 t ADT: 375

STH 170

Good

Over: HAY RIVER

1.4M E JCT STH 25, Dunn, WI

Built 2003 Load: 40.5 t ADT: 850

CTH Z

Good

Over: MISSOURI CREEK

1.3M E JCT CTH D, Dunn, WI

Built 2002 Load: 40.5 t ADT: 200

LRD 620TH AVE

Good

Over: MUDDY CREEK

1.5M E JCT CTH E, Dunn, WI

Built 2004 Load: 40.5 t ADT: 91

STH 85

Good

Over: DUSHAM CREEK

0.5M E JCT CTH O, Dunn, WI

Built 2011 Load: 40.5 t ADT: 2,900

LRD 130TH ST

Good

Over: WILSON CREEK

0.1M N JCT CTH Q TO N, Dunn, WI

Built 1988 Load: 40.5 t ADT: 106

LRD BRIDGE RD

Good

Over: HOYTS CREEK

0.3M W STH 37, Eau Claire, WI

Built 1993 Load: 40.5 t ADT: 51

LRD BIRCH ST

Good

Over: EAU CLAIRE R

1.0M E USH12, Eau Claire, WI

Built 2006 Load: 40.5 t ADT: 15,825

CTH XX

Good

Over: PINE CREEK

0.1M N CTH X, Eau Claire, WI

Built 1981 Load: 40.5 t ADT: 256

STH 139

Good

Over: PINE RIVER

16.2M N JCT CTH O, Florence, WI

Built 1981 Load: 40.5 t ADT: 770

STH 23-JOHNSON ST

Good

Over: DE NEVEU CREEK

0.8M E JCT USH 45, Fond du Lac, WI

Built 2002 Load: 40.5 t ADT: 16,100

USH 41 NB

Good

Over: EAST BR FON DU LAC RIVER

AT FON DU LAC RIVER, Fond du Lac, WI

Built 2005 Load: 40.5 t ADT: 18,750

IH 41 SB

Good

Over: E BR FOND DU LAC RIVER

0.3M N JCT STH 175 TO N, Fond du Lac, WI

Built 2005 Load: 40.5 t ADT: 18,750

STH 67

Good

Over: W BR MILWAUKEE RIVER

1.2M N JCT CTH K TO N, Fond du Lac, WI

Built 1995 Load: 40.5 t ADT: 1,800

LRD NEW PROSPECT L

Good

Over: E BR MILWAUKEE RIVER

0.3M N JCT CTH SS, Fond du Lac, WI

Built 1996 Load: 40.5 t ADT: 25

USH 151 NB

Good

Over: WEST BRANCH ROCK RIVER

1.8M N JCT STH26 TO N, Fond du Lac, WI

Built 2003 Load: 40.5 t ADT: 6,150

USH 8

Good

Over: PESHTIGO RIVER

0.8M E JCT CTH G, Forest, WI

Built 1984 Load: 40.5 t ADT: 2,100

LRD FAIRVIEW RD

Good

Over: NORTH BR OCONTO RIVER

0.3M N JCT STH 32, Forest, WI

Built 1995 Load: 40.5 t ADT: 101

STH 55

Good

Over: POPPLE RIVER

11.0M N JCT STH 32 TO N, Forest, WI

Built 2001 Load: 40.5 t ADT: 160

STH 55

Good

Over: JONES CREEK

15.2M N JCT STH 32 TO N, Forest, WI

Built 2001 Load: 40.5 t ADT: 160

LRD DODGE RD

Good

Over: RATTLESNAKE CREEK

1.7M W JCT STH 133, Grant, WI

Built 1986 Load: 40.5 t ADT: 102

STH 81

Good

Over: RATTLESNAKE CREEK

3.3M E JCT CTH Y, Grant, WI

Built 1999 Load: 40.5 t ADT: 840

CTH O

Good

Over: LITTLE PLATTE RIVER

2.6M W JCT USH 151, Grant, WI

Built 1995 Load: 40.5 t ADT: 600

LRD UNIVERSITY FAR

Good

Over: BR BLAKE FORK

0.1M E JCT CTH A, Grant, WI

Built 1992 Load: 40.5 t ADT: 102

LRD BADGER RD

Good

Over: LITTLE GRANT RIVER

0.8M N JCT CTH A, Grant, WI

Built 1996 Load: 40.5 t ADT: 102

LRD MILLVILLE HOLL

Good

Over: MILLVILLE CREEK

1.5M S JCT CTH C, Grant, WI

Built 1998 Load: 40.5 t ADT: 102

LRD SLABTOWN RD

Good

Over: GRANT RIVER

1.5M N JCT STH 35, Grant, WI

Built 2002 Load: 40.5 t ADT: 106

LRD BOICE CREEK RD

Good

Over: BOICE CREEK

3.0M W JCT USH 61, Grant, WI

Built 2003 Load: 40.5 t ADT: 78

LRD PIKE PEAK RD

Good

Over: BOICE CREEK

1.2M N JCT CTH U, Grant, WI

Built 2005 Load: 40.5 t ADT: 42

LRD S BOICE CR RD

Good

Over: BOICE CR

1.5 MI. EAST OF JCT CTH U, Grant, WI

Built 2005 Load: 40.5 t ADT: 78

LRD WILLOW BRANCH

Good

Over: WILLOW BRANCH

1.0M E JCT STH 81, Grant, WI

Built 2008 Load: 40.5 t ADT: 104

LRD MILL RD

Good

Over: BR SINSINAWA RIVER

1.2M N JCT STH 11, Grant, WI

Built 2008 Load: 40.5 t ADT: 83

LRD JIMTOWN ROAD

Good

Over: KIELER CREEK

0.5M E JCT USH 61, Grant, WI

Built 2021 Load: 40.5 t ADT: 320

CTH G

Good

Over: SPRING CREEK

2.4M S JCT STH 11, Green, WI

Built 2002 Load: 40.5 t ADT: 850

LRD LEGLER VALLEY

Good

Over: LEGLER SCHOOL BRANCH

1.7M S JCT STH 39, Green, WI

Built 2003 Load: 40.5 t ADT: 106

LRD LOVERS LANE

Good

Over: BELLE FOUNTAIN CREEK

0.3M S JCT CTH B, Green Lake, WI

Built 1994 Load: 40.5 t ADT: 99

CTH A

Good

Over: PUCHYAN RIVER

0.9 MI S JCT CTH J, Green Lake, WI

Built 2004 Load: 40.5 t ADT: 466

LRD MOSCOW RD

Good

Over: BLUE MOUNDS BRANCH

0.6M N JCT STH 78, Iowa, WI

Built 1981 Load: 40.5 t ADT: 52

STH 23

Good

Over: RUSH CREEK

5.9M E JCT STH 130, Iowa, WI

Built 1988 Load: 40.5 t ADT: 2,600

LRD IRISH HOLLOW R

Good

Over: BIG ROCK BRANCH

1.6M W JCT CTH Q, Iowa, WI

Built 1993 Load: 40.5 t ADT: 52

LRD EVANS QUARRY R

Good

Over: BR MILL CREEK

0.8M S JCT CTH Y, Iowa, WI

Built 1986 Load: 40.5 t ADT: 104

LRD PAULSON RD (DE

Good

Over: DODGE BRANCH

0.3M S JCT STH 191, Iowa, WI

Built 1998 Load: 40.5 t ADT: 40

CTH T

Good

Over: TROUT CREEK

7.1M N JCT USH 18, Iowa, WI

Built 1983 Load: 40.5 t ADT: 158

Showing 12,551-12,600 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.