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 17 1/4 AVENUE

Good

Over: POKEGAMA CREEK

0.5 M E. OF M, Barron, WI

Built 2010 Load: 36.6 t ADT: 30

CTH D

Good

Over: BR FOUR MILE CREEK

0.5M W JCT STH 25, Barron, WI

Built 2020 Load: 36.6 t ADT: 690

STH 48

Good

Over: HAY RIVER FLOWAGE

0.32 MI E CTH P, Barron, WI

Built 2022 Load: 36.6 t ADT: 5,100

LRD PARK VIEW RD

Good

Over: DEVILS RIVER

2.3M S JCT STH 96, Brown, WI

Built 2020 Load: 36.6 t ADT: 20

CTH E

Good

Over: BRANCH WAUMANDEE CREEK

2.5M E JCT CTH U, Buffalo, WI

Built 2022 Load: 36.6 t ADT: 415

LRD BOETTCHER RD (

Good

Over: JAHNS VALLEY CREEK

0.1M S JCT CTH XX, Buffalo, WI

Built 2018 Load: 36.6 t ADT: 10

LRD PRIDDY STREET

Good

Over: BR. DUNCAN CREEK

0.2 M S STH 40, Chippewa, WI

Built 2011 Load: 36.6 t ADT: 450

LRD RIVER RD (OLD

Good

Over: CRAWFISH RIVER

1.3 M N JCT STH 16, Columbia, WI

Built 2023 Load: 36.6 t ADT: 190

LRD BILLS ROAD (DE

Good

Over: SAND CREEK

0.25M N OF SAND CREEK ROA, Crawford, WI

Built 2009 Load: 36.6 t ADT: 20

LRD BUCK CREEK RD

Good

Over: BUCK CREEK

2.3 MI E. JCT STH 35, Crawford, WI

Built 2010 Load: 36.6 t ADT: 51

LRD SUGAR CREEK BI

Good

Over: SUGAR CREEK

0.18M S OF CTH C, Crawford, WI

Built 2016 Load: 36.6 t ADT: 149

CTH N

Good

Over: YAHARA RIVER

2.5M S JCT CTH A, Dane, WI

Built 2009 Load: 36.6 t ADT: 3,001

CTH OLD CTH PB

Good

Over: BADGER MILL CREEK

0.2M S JCT USH 18, Dane, WI

Built 2018 Load: 36.6 t ADT: 6,200

LRD FEMRITE DRIVE

Good

Over: DOOR CREEK

0.8 MI NORTH OF JUNCTION, Dane, WI

Built 2022 Load: 36.6 t ADT: 435

IH 39 SB / IH 90 E

Good

Over: DOOR CREEK

3.0M E JCT USH 12, Dane, WI

Built 2019 Load: 36.6 t ADT: 29,600

IH 94 WB

Good

Over: DRAINAGE DITCH

2.7M W JCT STH 73 TO N, Dane, WI

Built 2020 Load: 36.6 t ADT: 21,200

CTH Y

Good

Over: ROCK RIVER

1.2M S JCT CTH TW, Dodge, WI

Built 2011 Load: 36.6 t ADT: 1,100

CTH T

Good

Over: MUD CREEK

1.2M N JCT CTH I, Dodge, WI

Built 2017 Load: 36.6 t ADT: 940

LRD SLEEPY VALLEY

Good

Over: MIDDLE RIVER

0.5 MI N JCT STH 13, Douglas, WI

Built 2017 Load: 36.6 t ADT: 99

LRD OLD ROAD 11

Good

Over: MIDDLE RIVER

0.6M S JCT USH 53, Douglas, WI

Built 2022 Load: 36.6 t ADT: 100

STH 85

Good

Over: ROCK CREEK

5.2M E JCT CTH O, Dunn, WI

Built 2021 Load: 36.6 t ADT: 2,900

CTH K

Good

Over: FALL CREEK

0.3 MI N OF USH 12, Eau Claire, WI

Built 2021 Load: 36.6 t ADT: 1,500

LRD LAKE MARIA RD

Good

Over: BR ROCK RIVER

2.1M W OF STH 49, Fond du Lac, WI

Built 2009 Load: 36.6 t ADT: 382

LRD OLD HWY 139 RD

Good

Over: LITTLE POPPLE RIVER

0.4M N JCT STH 139, Forest, WI

Built 2019 Load: 36.6 t ADT: 60

LRD AIRPORT RD

Good

Over: PLATTE RIVER

3.3 MI E OF JCT USH 61, Grant, WI

Built 2014 Load: 36.6 t ADT: 75

LRD SHEMACK RD

Good

Over: TRIB TO BLUE RIVER

0.9 MI S JCT CTH Q, Grant, WI

Built 2021 Load: 36.6 t ADT: 100

LRD PRAIRIE VIEW R

Good

Over: DOUGHERTY CREEK

2.6M W JCT CTH C, Green, WI

Built 2022 Load: 36.6 t ADT: 165

LRD CTH HK

Good

Over: E BRANCH PECATONICA RVR

1.6 M E JCT CTH K, Iowa, WI

Built 2015 Load: 36.6 t ADT: 55

CTH G

Good

Over: LONG LAKE OUTLET

0.5M N JCT CTH H, Iron, WI

Built 2019 Load: 36.6 t ADT: 100

IH 94 EB

Good

Over: ROCK CREEK

1.2 MILES EAST JCT. STH 8, Jefferson, WI

Built 2020 Load: 36.6 t ADT: 18,850

CTH BB

Good

Over: E TWIN RIVER

0.2M E JCT CTH B, Kewaunee, WI

Built 2018 Load: 36.6 t ADT: 660

CTH O SEYMOUR RD

Good

Over: SHULLSBURG BRANCH

0.4M N JCT STH 11, Lafayette, WI

Built 2017 Load: 36.6 t ADT: 900

LRD NEWTON RD

Good

Over: POINT CREEK

0.40 EAST OF STH 42, Manitowoc, WI

Built 2009 Load: 36.6 t ADT: 133

LRD COUNTY LINE RD

Good

Over: PIGEON RIVER

1.0M E JCT CTH M, Manitowoc, WI

Built 2017 Load: 36.6 t ADT: 230

CTH M

Good

Over: LITTLE EAU PLEINE R

2.6M S JCT CTH C, Marathon, WI

Built 2012 Load: 36.6 t ADT: 1,700

USH B51-GRAND AVE

Good

Over: CEDAR CREEK

0.5M N JCT USH 51, Marathon, WI

Built 2015 Load: 36.6 t ADT: 9,600

LRD FRENCH ST

Good

Over: PESHTIGO RIVER

0.2M N JCT CTH B TO W, Marinette, WI

Built 2012 Load: 36.6 t ADT: 6,500

LRD TOWER HILL RD

Good

Over: LITTLE PESHTIGO RIVER

2.7M W JCT CTH W, Marinette, WI

Built 2020 Load: 36.6 t ADT: 30

FR 2104

Good

Over: 1ST S BR OCONTO RIVER

FR 2104 MP 0.5, Oconto, WI

Built 2016 Load: 36.6 t ADT: 199

LRD OSPREY LANE

Good

Over: APPLE CREEK

0.2 MI EAST OF BALLARD RD, Outagamie, WI

Built 2020 Load: 36.6 t ADT: 50

STH 20

Good

Over: E BR ROOT RIVER CANAL

3.7 MI E JCT USH 45, Racine, WI

Built 2020 Load: 36.6 t ADT: 9,600

LRD INMAN PARKWAY

Good

Over: TURTLE CREEK

0.3 MI W JCT SHOPIERE RD, Rock, WI

Built 2016 Load: 36.6 t ADT: 5,100

LRD S SMITH RD

Good

Over: TURTLE CREEK

0.3M N JCT CTH J, Rock, WI

Built 2020 Load: 36.6 t ADT: 140

CTH PF EB & WB

Good

Over: EAST BRANCH HONEY CREEK

2.2 M E OF JCT CTH E, Sauk, WI

Built 2015 Load: 36.6 t ADT: 1,000

CTH CC

Good

Over: CHIPPEWA FLOWAGE

4.7M N JCT CTH H, Sawyer, WI

Built 2015 Load: 36.6 t ADT: 550

STH 22

Good

Over: WOLF RIVER

0.1M N JCT CTH CC, Shawano, WI

Built 2011 Load: 36.6 t ADT: 8,200

LRD PELLA SWAMP RO

Good

Over: HYDES CREEK

1.2 MILES E JCT USH 45, Shawano, WI

Built 2017 Load: 36.6 t ADT: 795

LRD HOITINK RD

Good

Over: ONION RIVER

1.1M E JCT CTH GW, Sheboygan, WI

Built 2018 Load: 36.6 t ADT: 50

LRD CENTER ROAD

Good

Over: MULLET RIVER

1.1M SE STH 23, Sheboygan, WI

Built 2022 Load: 36.6 t ADT: 95

LRD 50TH AVE

Good

Over: RUSH R

0.5 MILES WEST OF US HWY, St. Croix, WI

Built 2010 Load: 36.6 t ADT: 287

Showing 11,051-11,100 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.