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

USH 45

Good

Over: GOEDE CREEK

500 FT W OF CTH J, Shawano, WI

Built 2018 Load: 36.0 t ADT: 3,200

CTH W

Good

Over: TRIBUTARY OF ONION RIVER

0.4 MI EAST OF JUNCTION W, Sheboygan, WI

Built 2022 Load: 36.0 t ADT: 1,060

LRD CASEY ST

Good

Over: UNNAMED DRY RUN TRIBUTAR

.1 MILE SOUTH OF CHAPMAN, St. Croix, WI

Built 2015 Load: 36.0 t ADT: 200

LRD 220TH AVE

Good

Over: WILLOW RIVER

0.5M E JCT USH 63, St. Croix, WI

Built 2017 Load: 36.0 t ADT: 100

LRD 130TH AVE

Good

Over: BR DRY RUN CREEK

2.1M E JCT USH 63, St. Croix, WI

Built 2017 Load: 36.0 t ADT: 160

LRD STATE ST

Good

Over: BLACK RIVER

0.3M S JCT STH 64, Taylor, WI

Built 2019 Load: 36.0 t ADT: 350

STH 97

Good

Over: BALDWIN CREEK

3.5M N JCT CTH F TO W, Taylor, WI

Built 2019 Load: 36.0 t ADT: 920

STH 102

Good

Over: SPIRIT RIVER

4.5M N JCT CTH C, Taylor, WI

Built 2020 Load: 36.0 t ADT: 390

CTH M

Good

Over: YELLOW RIVER

1.1M E JCT CTH G, Taylor, WI

Built 2019 Load: 36.0 t ADT: 350

CTH A

Good

Over: MCKENZIE CREEK

0.2M W JCT CTH T, Taylor, WI

Built 2019 Load: 36.0 t ADT: 235

LRD ELM AVE

Good

Over: TRAPPERS CREEK

1.2M E JCT CTH A, Taylor, WI

Built 2019 Load: 36.0 t ADT: 92

LRD QUARTER LANE

Good

Over: MONDEAUX RIVER

2.2 MI W JCT 4TH ST, Taylor, WI

Built 2019 Load: 36.0 t ADT: 80

CTH M

Good

Over: BR LITTLE BLACK RIVER

2.3 M E JCT STH 13, Taylor, WI

Built 2019 Load: 36.0 t ADT: 471

LRD HETLAND AVE

Good

Over: LEMKE CREEK

1.2M S. JUNCTION OF CTH M, Taylor, WI

Built 2022 Load: 36.0 t ADT: 58

LRD NORWEGIAN HOLL

Good

Over: NORWEGIAN HOLLOW CREEK

1.9M S JCT STH 56, Vernon, WI

Built 2009 Load: 36.0 t ADT: 82

LRD SOUTH AVE (DEA

Good

Over: HAY VALLEY CREEK

1.6M W JCT STH 131, Vernon, WI

Built 2011 Load: 36.0 t ADT: 20

LRD RUMMEL RD

Good

Over: WISCONSIN RIVER 57

1.2M W JCT USH 45, Vilas, WI

Built 2020 Load: 36.0 t ADT: 238

LRD CEDAR CREEK RO

Good

Over: BRANCH CEDAR CREEK

0.1 M E OF JACKSON DR., Washington, WI

Built 2022 Load: 36.0 t ADT: 30

USH 18 WB

Good

Over: WETLANDS

0.3 MI N JCT STH 59, Waukesha, WI

Built 2019 Load: 36.0 t ADT: 6,100

USH 18 EB

Good

Over: WETLANDS

2.9 MI S JCT USH 318, Waukesha, WI

Built 2019 Load: 36.0 t ADT: 7,800

CTH Q / COUNTY LIN

Good

Over: OCONOMOWOC RIVER

0.4M E JCT CTH E, Waukesha, WI

Built 2018 Load: 36.0 t ADT: 3,100

CTH C

Good

Over: LITTLE WOLF RIVER

0.2M E JCT CTH E, Waupaca, WI

Built 2014 Load: 36.0 t ADT: 537

LRD N. OAKWOOD RD

Good

Over: HONEY CREEK

.3 M S OF OMRO RD., Winnebago, WI

Built 2014 Load: 36.0 t ADT: 1,500

LRD LYNN LINE RD

Good

Over: BR E FK BLACK RIVER

1.9M W JCT CTH V, Wood, WI

Built 2023 Load: 36.0 t ADT: 100

LRD PIEPER RD (DEA

Good

Over: CHIPPEWA RIVER 32

2.4M S JCT CTH D, Ashland, WI

Built 2020 Load: 36.3 t ADT: 60

LRD SAWYER ST

Good

Over: UPPER RICE LAKE

0.6M E JCT MAIN AVE, Barron, WI

Built 2012 Load: 36.3 t ADT: 4,488

LRD 5TH STREET (DE

Good

Over: VANCE CREEK

2.6M S JCT CTH A, Barron, WI

Built 2022 Load: 36.3 t ADT: 45

STH 13

Good

Over: BOYD CREEK

2.1M N JCT USH 2 TO W, Bayfield, WI

Built 2020 Load: 36.3 t ADT: 7,417

USH 63

Good

Over: S FISH CREEK

2.4M N JCT STH 118, Bayfield, WI

Built 2020 Load: 36.3 t ADT: 1,700

CTH E

Good

Over: BRANCH OF MARENGO RIVER

5.2 M EAST OF STH 63, Bayfield, WI

Built 2017 Load: 36.3 t ADT: 541

LRD OLD HWY 63

Good

Over: EIGHTEEN MILE CREEK

OLD HWY 63, Bayfield, WI

Built 2019 Load: 36.3 t ADT: 100

CTH X, S. WEBSTER

Good

Over: WISCONSIN CENTRAL LTD RR

1.6 M N JCT STH 172, Brown, WI

Built 2016 Load: 36.3 t ADT: 12,500

LRD WANEK RD

Good

Over: BR DEVILS RIVER

1.6M S JCT STH 96, Brown, WI

Built 2018 Load: 36.3 t ADT: 70

LRD CHANTEL ST

Good

Over: BEAVER DAM CREEK

0.4M S JCT STH 54, Brown, WI

Built 2023 Load: 36.3 t ADT: 800

IH 41

Good

Over: ASHWAUBENON CR

AT ASHWAUBENON CREEK, Brown, WI

Built 2012 Load: 36.3 t ADT: 74,600

IH 41 SB

Good

Over: WISCONSIN CENTRAL LTD

.4 MILES N OF JCT USH 141, Brown, WI

Built 2016 Load: 36.3 t ADT: 26,450

IH 41 NB

Good

Over: WISCONSIN CENTRAL LTD RR

.4 MILES N OF JCT USH 141, Brown, WI

Built 2015 Load: 36.3 t ADT: 26,450

USH 41 SB-USH 141

Good

Over: DUCK CREEK

10.9M S JCT CTH S, Brown, WI

Built 2016 Load: 36.3 t ADT: 34,800

CTH AA

Good

Over: SPRING CREEK

0.3M S JCT CTH F, Buffalo, WI

Built 2012 Load: 36.3 t ADT: 152

CTH U

Good

Over: HESCH VALLEY CREEK

0.2M S JCT CTH EE, Buffalo, WI

Built 2017 Load: 36.3 t ADT: 540

CTH M

Good

Over: BRANCH FISHER RIVER

2380 FT EAST OF CTH VV, Chippewa, WI

Built 2010 Load: 36.3 t ADT: 170

CTH XX

Good

Over: BR PAINT CREEK

0.6 M N 30TH AVENUE, Chippewa, WI

Built 2019 Load: 36.3 t ADT: 685

CTH T

Good

Over: BR ELK CREEK

0.2 M N JCT CTH S, Chippewa, WI

Built 2023 Load: 36.3 t ADT: 402

LRD MILL RD

Good

Over: BR NELSON CREEK

2.7M E JCT STH 73, Clark, WI

Built 2020 Load: 36.3 t ADT: 100

CTH K

Good

Over: LITTLE EAU PLEINE RIVER

0.6M W JCT STH 13, Clark, WI

Built 2020 Load: 36.3 t ADT: 672

CTH SS

Good

Over: MIDDLE BRANCH DUCK CREEK

2.9M N JCT CTH B, Columbia, WI

Built 2014 Load: 36.3 t ADT: 291

CTH U

Good

Over: PLUM RUN CREEK

2.0M N JCT CTH KK, Crawford, WI

Built 2018 Load: 36.3 t ADT: 56

LRD MILWAUKEE ST E

Good

Over: E BR STARKWEATHER CREEK

0.8M S JCT USH 151, Dane, WI

Built 2015 Load: 36.3 t ADT: 14,500

CTH PB

Good

Over: BRANCH OF SUGAR RIVER

AT SUGAR RIVER BRANCH, Dane, WI

Built 2014 Load: 36.3 t ADT: 8,400

LRD LAKE MENDOTA D

Good

Over: SHOREWOOD BOATHOUSE ACCE

0.8M N JCT CTH MS, Dane, WI

Built 2023 Load: 36.3 t ADT: 1,650

Showing 10,901-10,950 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.