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 N HICKORY ST

Good

Over: WEST DITCH

N HICKORY ST. - 0.16 OF A, Fond du Lac, WI

Built 1993 Load: 36.0 t ADT: 3,100

LRD COLE RD

Good

Over: WOLF RIVER

0.3M S JCT USH 8, Forest, WI

Built 2019 Load: 36.0 t ADT: 160

STH 133

Good

Over: LITTLE GREEN RIVER

4.1M N JCT USH 18 TO E, Grant, WI

Built 2010 Load: 36.0 t ADT: 630

LRD LOST HOLLOW RD

Good

Over: LITTLE GREEN RIVER

1.3M E JCT STH 133, Grant, WI

Built 2009 Load: 36.0 t ADT: 102

LRD CTH C

Good

Over: MILLVILLE CREEK

6 MILES EAST OF US 18, Grant, WI

Built 2009 Load: 36.0 t ADT: 288

LRD BORAH ROAD

Good

Over: BORAH CREEK

2.6M E JCT CTH K, Grant, WI

Built 2021 Load: 36.0 t ADT: 100

LRD POPLAR GROVE R

Good

Over: HEFTY CREEK

0.4 MI S. HWY 39, Green, WI

Built 2015 Load: 36.0 t ADT: 125

LRD BLOTZ RD

Good

Over: DODGE BRANCH

0.4M W JCT CTH Y, Iowa, WI

Built 2016 Load: 36.0 t ADT: 110

LRD SNEED CREEK RO

Good

Over: TRIBUTARY TO SNEED CREEK

0.03 M E JCT SNEED CREEK, Iowa, WI

Built 2015 Load: 36.0 t ADT: 150

LRD WEAVER ROAD

Good

Over: TRIBUTARY TO RUSH CREEK

1.9 M N JCT CTH ZZ, Iowa, WI

Built 2015 Load: 36.0 t ADT: 150

LRD CRAMER LAKE RD

Good

Over: TURTLE RIVER

0.3M W JCT CTH H, Iron, WI

Built 2018 Load: 36.0 t ADT: 100

LRD BUCKHOLZ RD

Good

Over: DOUGLAS CREEK

1.7 MILES NORTH OF JUNCTI, Jackson, WI

Built 2009 Load: 36.0 t ADT: 99

LRD WEST RIVER RD

Good

Over: OCONOMOWOC RIVER

0.3M E JCT CTH E, Jefferson, WI

Built 2015 Load: 36.0 t ADT: 58

CTH KR EB

Good

Over: N BR PIKE RIVER

0.4M W JCT STH 31, Kenosha, WI

Built 2021 Load: 36.0 t ADT: 8,800

CTH KR WB

Good

Over: N BR PIKE RIVER

0.4M W JCT STH 31, Kenosha, WI

Built 2021 Load: 36.0 t ADT: 8,800

CTH M

Good

Over: HALFWAY CREEK

0.3MILES E OF JUNCTION WI, La Crosse, WI

Built 2021 Load: 36.0 t ADT: 560

CTH DE

Good

Over: BELL COULEE CREEK

0.38 MI E JCT STH 108, La Crosse, WI

Built 2018 Load: 36.0 t ADT: 316

LRD STATE LINE ROA

Good

Over: W. FORK APPLE RIVER

AT W. FORK APPLE RIVER, Lafayette, WI

Built 2011 Load: 36.0 t ADT: 102

LRD GANT RD

Good

Over: YELLOWSTONE RIVER

1.4 MILES N OF JCT CTH F, Lafayette, WI

Built 2016 Load: 36.0 t ADT: 100

LRD COUNTY LINE RD

Good

Over: PINE RIVER

1.6M S JCT CTH C, Langlade, WI

Built 2019 Load: 36.0 t ADT: 100

CTH T

Good

Over: WOLF RIVER

0.9 MI SOUTH OF JUNCTION, Langlade, WI

Built 2022 Load: 36.0 t ADT: 341

LRD PHALZGRAFF RD

Good

Over: SQUAW CREEK

0.6M N JCT STH 86, Lincoln, WI

Built 2009 Load: 36.0 t ADT: 109

LRD PLEASANT RD

Good

Over: DEVILS RIVER

1.7M N JCT CTH Z, Manitowoc, WI

Built 2018 Load: 36.0 t ADT: 70

CTH R/RAPIDS RD

Good

Over: MANITOWOC RIVER

0.8M N JCT CTH CS, Manitowoc, WI

Built 2019 Load: 36.0 t ADT: 12,100

LRD LINDEN ST

Good

Over: SOUTH BRANCH CENTERVILLE

0.2 MI S JCT CTH XX, Manitowoc, WI

Built 2020 Load: 36.0 t ADT: 400

LRD HUCKLEBERRY RD

Good

Over: SCOTCH CREEK

1.7M E JCT CTH M, Marathon, WI

Built 2009 Load: 36.0 t ADT: 103

LRD HUCKLEBERRY RD

Good

Over: FENWOOD CREEK

0.9M W JCT CTH M, Marathon, WI

Built 2009 Load: 36.0 t ADT: 103

LRD PINE VIEW RD

Good

Over: PLOVER RIVER

0.9M E JCT CTH Y, Marathon, WI

Built 2012 Load: 36.0 t ADT: 111

CTH A

Good

Over: LITTLE RIB RIVER

2.6M E JCT STH 107, Marathon, WI

Built 2022 Load: 36.0 t ADT: 1,130

LRD FENCE RD

Good

Over: E BR BIG EAU PLEINE RIVE

0.8M W JCT CTH F, Marathon, WI

Built 2021 Load: 36.0 t ADT: 85

LRD CHESAK RD.

Good

Over: FENWOOD CREEK

1.4M W JCT CTH M, Marathon, WI

Built 1965 Load: 36.0 t ADT: 30

USH 141-MAIN ST

Good

Over: WAUSAUKEE RIVER

0.9M N JCT STH 180, Marinette, WI

Built 2014 Load: 36.0 t ADT: 6,100

LRD N 1ST RD

Good

Over: LITTLE PESHTIGO RIVER

0.5M N JCT CTH B, Marinette, WI

Built 2020 Load: 36.0 t ADT: 60

IH RAMP HAMPTON AV

Good

Over: MILWAUKEE RIVER

0.1M W JCT IH 43, Milwaukee, WI

Built 2023 Load: 36.0 t ADT: 6,400

LRD W LISBON AVE

Good

Over: CANADIAN PACIFIC RR

0.7M W JCT STH 57, Milwaukee, WI

Built 2014 Load: 36.0 t ADT: 13,100

LRD N 51ST BLVD

Good

Over: LINCOLN CREEK

0.6M N JCT STH 145, Milwaukee, WI

Built 2017 Load: 36.0 t ADT: 14,300

LRD NEBRASKA AVE

Good

Over: BR LITTLE LA CROSSE RIVE

0.3M W JCT STH 27, Monroe, WI

Built 2017 Load: 36.0 t ADT: 200

LRD DESOTO AVE

Good

Over: MILL CREEK

0.6M E JCT CTH M, Monroe, WI

Built 2019 Load: 36.0 t ADT: 15

STH 15 EB

Good

Over: BLACK OTTER CREEK

4.5M EAST US-45, Outagamie, WI

Built 2023 Load: 36.0 t ADT: 12,500

STH 15 WB

Good

Over: BLACK OTTER CREEK

6.4M WEST STH76, Outagamie, WI

Built 2023 Load: 36.0 t ADT: 12,500

CTH B / 295TH AVEN

Good

Over: TRADE RIVER

0.1M W JCT CTH Z, Polk, WI

Built 2023 Load: 36.0 t ADT: 411

LRD 100TH ST

Good

Over: BUENA VISTA CREEK

0.3M S JCT CTH FF, Portage, WI

Built 2022 Load: 36.0 t ADT: 100

LRD HALSTRAND RD

Good

Over: HOLMES CREEK

0.5M N JCT STH 86, Price, WI

Built 2009 Load: 36.0 t ADT: 106

STH 20

Good

Over: BR W BR ROOT RIVER CANAL

1.9 MI E JCT USH 45, Racine, WI

Built 2020 Load: 36.0 t ADT: 9,600

LRD MCAVOY HILL RO

Good

Over: LITTLE WILLOW CREEK

0.2M W JCT CTH NN, Richland, WI

Built 2021 Load: 36.0 t ADT: 25

CTH H

Good

Over: GAULT HOLLOW CREEK

0.1 M S JCT CTH I, Richland, WI

Built 2022 Load: 36.0 t ADT: 330

STH 26 NB

Good

Over: OTTER CREEK

3.5 MI. N STH 59, Rock, WI

Built 2013 Load: 36.0 t ADT: 13,900

STH 26SB

Good

Over: OTTER CREEK

0.2 MI. S OF CTH N, Rock, WI

Built 2013 Load: 36.0 t ADT: 13,900

LRD WILSON CREEK R

Good

Over: WILSON CREEK

AT WILSON CREEK, Sauk, WI

Built 2015 Load: 36.0 t ADT: 150

LRD BLUEBERRY AVE

Good

Over: CHIPPEWA FLOWAGE

0.4M W OF CTH H, Sawyer, WI

Built 2017 Load: 36.0 t ADT: 200

Showing 10,851-10,900 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.