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 UPHOFF ROAD

Good

Over: KOSHKONONG CREEK

0.9 MI SOUTH OF JUNCTION, Dane, WI

Built 2022 Load: 35.6 t ADT: 100

CTH KP

Good

Over: WENDT CREEK

AT WENDT CREEK, Dane, WI

Built 2014 Load: 35.6 t ADT: 270

USH 14

Good

Over: BLACK EARTH CREEK

0.2M E JCT STH 78 TO S, Dane, WI

Built 2018 Load: 35.6 t ADT: 6,900

CTH FW

Good

Over: CNW RR

1.2M N JCT CTH CC, Dodge, WI

Built 1995 Load: 35.6 t ADT: 276

STH 57 SB

Good

Over: AHNAPEE R

0.9 MI E OF SCHOOL LANE, Door, WI

Built 2005 Load: 35.6 t ADT: 5,750

CTH E

Good

Over: AMNICON RIVER

1.6M N JCT CTH V, Douglas, WI

Built 1992 Load: 35.6 t ADT: 1,085

LRD ITASCA ST

Good

Over: BLUFF CREEK

0.1M E JCT USH 2, Douglas, WI

Built 1998 Load: 35.6 t ADT: 626

CTH Y

Good

Over: EAU CLAIRE RIVER

0.5M E JCT USH 53, Douglas, WI

Built 2000 Load: 35.6 t ADT: 1,204

CTH H

Good

Over: ROCK CREEK

1.0M S JCT STH 85, Dunn, WI

Built 1969 Load: 35.6 t ADT: 639

LRD 1205TH AVE

Good

Over: S FK HAY RIVER

0.2M W JCT STH 79, Dunn, WI

Built 1987 Load: 35.6 t ADT: 108

CTH S

Good

Over: OTTER CREEK

1.2M W JCT CTH SS, Dunn, WI

Built 1987 Load: 35.6 t ADT: 213

LRD 370TH AVE

Good

Over: MUDDY CREEK

1.1M N JCT CTH J, Dunn, WI

Built 1988 Load: 35.6 t ADT: 108

LRD 210TH ST

Good

Over: N BR WILSON CREEK

0.8M N JCT USH 12, Dunn, WI

Built 1990 Load: 35.6 t ADT: 101

STH 170

Good

Over: TIFFANY CREEK

2.0M E JCT STH 128, Dunn, WI

Built 1997 Load: 35.6 t ADT: 1,300

LRD 160TH AVE

Good

Over: CANAL CREEK

1.1M W JCT CTH O, Dunn, WI

Built 1991 Load: 35.6 t ADT: 60

CTH Y

Good

Over: RED CEDAR RIVER

2.2M E JCT STH 25, Dunn, WI

Built 1996 Load: 35.6 t ADT: 160

LRD 200TH STREET

Good

Over: GILBERT CREEK

0.1M S JCT STH 29, Dunn, WI

Built 1996 Load: 35.6 t ADT: 50

LRD 1450TH ST

Good

Over: S FK HAY RIVER

0.3M E JCT CTH K, Dunn, WI

Built 1998 Load: 35.6 t ADT: 76

CTH D

Good

Over: IRVING CREEK

2.4M E JCT CTH K, Dunn, WI

Built 1999 Load: 35.6 t ADT: 1,511

LRD 320TH AVE

Good

Over: MUDDY CREEK

0.6M E. JCT CTH C, Dunn, WI

Built 2001 Load: 35.6 t ADT: 52

CTH E

Good

Over: ELK CREEK

0.3M W JCT 1010TH ST., Dunn, WI

Built 2004 Load: 35.6 t ADT: 1,501

CTH E

Good

Over: MUDDY CREEK

3.6M W JCT CTH H, Dunn, WI

Built 2001 Load: 35.6 t ADT: 1,481

CTH K

Good

Over: BR IRVING CR

0.15 MILES N. OF 330TH ST, Dunn, WI

Built 2005 Load: 35.6 t ADT: 263

LRD SHORT ST

Good

Over: CHIPPEWA RIVER 06

0.7M N JCT STH 37, Eau Claire, WI

Built 1998 Load: 35.6 t ADT: 5,510

LRD HORSE CREEK RD

Good

Over: HORSE CREEK

1.3M W CTH H, Eau Claire, WI

Built 1990 Load: 35.6 t ADT: 51

LRD CHANNEY RD

Good

Over: N FK EAU CLAIRE RIVER

2.3M W CTH H, Eau Claire, WI

Built 1988 Load: 35.6 t ADT: 51

STH 27

Good

Over: BRIDGE CREEK

0.2 MI N JCT WITH USH 12, Eau Claire, WI

Built 2017 Load: 35.6 t ADT: 2,000

CTH HH

Good

Over: OTTER CREEK

0.5MI E CTH KK, Eau Claire, WI

Built 2018 Load: 35.6 t ADT: 345

USH 151 SB

Good

Over: S BR ROCK RIVER

1.9M S JCT STH 26 TO N, Fond du Lac, WI

Built 2002 Load: 35.6 t ADT: 8,400

USH 151 NB

Good

Over: S BR ROCK RIVER

0.6M N JCT STH 49 (N), Fond du Lac, WI

Built 2003 Load: 35.6 t ADT: 8,400

LRD NEITMAN RD

Good

Over: W BR ROCK RIVER

1.1M E JCT STH 26, Fond du Lac, WI

Built 1987 Load: 35.6 t ADT: 142

USH 45

Good

Over: ANDERSON CREEK

2.9 M N JCT CTH RP SCOTT, Fond du Lac, WI

Built 1988 Load: 35.6 t ADT: 4,200

STH 49

Good

Over: S BR ROCK RIVER

1.4M N JCT CTH AW, Fond du Lac, WI

Built 1993 Load: 35.6 t ADT: 2,700

LRD DOUGLAS ST

Good

Over: SILVER CREEK

0.4M S JCT STH 44, Fond du Lac, WI

Built 1995 Load: 35.6 t ADT: 4,100

LRD W ROCK RIVER R

Good

Over: S BR ROCK RIVER

1.0M S JCT CTH E, Fond du Lac, WI

Built 1996 Load: 35.6 t ADT: 293

CTH C

Good

Over: W BR FOND DU LAC RIVER

0.9M N JCT STH 23, Fond du Lac, WI

Built 2001 Load: 35.6 t ADT: 1,100

USH 151 NB

Good

Over: E BR FOND DU LAC R

1 M W USH 41, Fond du Lac, WI

Built 2008 Load: 35.6 t ADT: 5,750

STH 32-STH 55-LAKE

Good

Over: WISCONSIN CENTRAL RR

0.5M N JCT USH 8 TO W, Forest, WI

Built 1992 Load: 35.6 t ADT: 1,800

LRD BLUFF RD

Good

Over: BLUE RIVER

0.5M E JCT CTH J, Grant, WI

Built 1982 Load: 35.6 t ADT: 102

LRD PLATTE RD

Good

Over: PLATTE RIVER

2.0M S JCT STH 81, Grant, WI

Built 1982 Load: 35.6 t ADT: 104

CTH U

Good

Over: BR BOICE CREEK

3.25 M W JCT STH 61, Grant, WI

Built 1987 Load: 35.6 t ADT: 678

CTH J

Good

Over: LITTLE GRANT RIVER

2.8M S JCT USH 18, Grant, WI

Built 1987 Load: 35.6 t ADT: 445

LRD OLD POTOSI RD

Good

Over: BOICE CREEK

5.2M S JCT STH 81, Grant, WI

Built 1987 Load: 35.6 t ADT: 104

LRD BAKER FORD RD

Good

Over: CULVER CREEK

2.9M S JCT STH 81, Grant, WI

Built 1989 Load: 35.6 t ADT: 53

LRD BLUFF RD

Good

Over: BORAH CREEK

1.0M E JCT CTH K, Grant, WI

Built 1990 Load: 35.6 t ADT: 53

LRD ROCK CUT RD

Good

Over: MENOMINEE CREEK

0.2M N JCT STH 11, Grant, WI

Built 1990 Load: 35.6 t ADT: 172

LRD MORGAN RD

Good

Over: MCADAM BRANCH

1.7M N JCT CTH HH, Grant, WI

Built 1992 Load: 35.6 t ADT: 103

CTH A

Good

Over: PLATTE RIVER

4.2M W JCT CTH D, Grant, WI

Built 1994 Load: 35.6 t ADT: 499

LRD YORK RD

Good

Over: BR SINSINAWA RIVER

2.4M W JCT STH 80, Grant, WI

Built 1996 Load: 35.6 t ADT: 80

LRD KUSSMAUL RD

Good

Over: WARNER CREEK

0.4M S JCT CTH C, Grant, WI

Built 1998 Load: 35.6 t ADT: 102

Showing 10,401-10,450 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.