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 DAVIDSON ROAD

Good

Over: BRANCH COON CREEK

1.0M S JCT STH 162 (0.3 M, Vernon, WI

Built 2016 Load: 38.2 t ADT: 20

STH 70

Good

Over: CRYSTAL BROOK

3.9 MI E USH 53, Washburn, WI

Built 2022 Load: 38.2 t ADT: 1,350

CTH M (NORTH AVE)

Good

Over: UNDERWOOD CREEK

AT UNDERWOOD CREEK, Waukesha, WI

Built 2021 Load: 38.2 t ADT: 4,550

LRD CALHOUN ROAD

Good

Over: UNNAMED TRIBUTARY OF THE

0.4 MI N OF JCT NORTH AVE, Waukesha, WI

Built 2021 Load: 38.2 t ADT: 12,400

CTH E (BERLIN ST)

Good

Over: CRYSTAL RIVER

0.8M S JCT STH 22, Waupaca, WI

Built 2018 Load: 38.2 t ADT: 2,502

IH 41 NB

Good

Over: SOO LINE

4.8M N JCT USH 45 TO N, Winnebago, WI

Built 1975 Load: 38.2 t ADT: 39,350

IH 41 SB

Good

Over: SOO LINE

2.0M S JCT STH 114 TO E, Winnebago, WI

Built 1975 Load: 38.2 t ADT: 39,350

LRD BELL RD

Good

Over: TEN MILE CREEK

2.2M S JCT STH 73, Wood, WI

Built 2012 Load: 38.2 t ADT: 101

LRD BADGERLAND DR.

Good

Over: BEAVER DAM CREEK

1.3M E JCT CTH J, Brown, WI

Built 2016 Load: 38.6 t ADT: 6,500

LRD BOWER CREEK RD

Good

Over: BOWER CREEK

0.3M S JCT CTH V, Brown, WI

Built 2016 Load: 38.6 t ADT: 1,200

STH 35

Good

Over: MISSISSIPPI RIVER TRIBUT

0.9M N JCT STH 54 TO W, Buffalo, WI

Built 2023 Load: 38.6 t ADT: 5,500

CTH Z

Good

Over: ELK CREEK

0.2M W JCT CTH H, Buffalo, WI

Built 2017 Load: 38.6 t ADT: 325

LRD WEEKS ROAD

Good

Over: S. BRANCH MANITOWOC RIVE

0.2M N OF USH 151, Calumet, WI

Built 2019 Load: 38.6 t ADT: 280

CTH DD

Good

Over: TROUT CREEK

AT TROUT CREEK, Chippewa, WI

Built 2015 Load: 38.6 t ADT: 520

LRD FAIRVIEW AVENU

Good

Over: E FK HALLS CREEK

0.1M N JCT CTH B, Clark, WI

Built 2021 Load: 38.6 t ADT: 100

LRD CLARK ROAD

Good

Over: FOX RIVER

0.6M W JCT CTH F, Columbia, WI

Built 2014 Load: 38.6 t ADT: 532

CTH M

Good

Over: UNION PACIFIC RAILROAD

0.1 MI N JCT CTH E, Columbia, WI

Built 2016 Load: 38.6 t ADT: 161

LRD MARIETTA VALLE

Good

Over: WOODWARD HOLLOW CREEK

0.5M N JCT USH 61, Crawford, WI

Built 2021 Load: 38.6 t ADT: 100

LRD GRAN GRAE ROAD

Good

Over: GRAN GRAE CREEK

3.5M W JCT STH 60, Crawford, WI

Built 2023 Load: 38.6 t ADT: 100

LRD WASHINGTON RD

Good

Over: ASHIPPUN RIVER

0.3M E JCT CTH P, Dodge, WI

Built 2016 Load: 38.6 t ADT: 350

LRD APPLE ROAD

Good

Over: SILVER CREEK

0.1 MI WEST OF JUNCTION W, Dodge, WI

Built 2022 Load: 38.6 t ADT: 100

STH 85

Good

Over: CRANBERRY CREEK

1.6M E JCT CTH O, Dunn, WI

Built 2010 Load: 38.6 t ADT: 2,900

CTH A

Good

Over: BR BLAKE FORK

1.7M E JCT STH 35, Grant, WI

Built 2010 Load: 38.6 t ADT: 288

CTH A

Good

Over: BR BLAKE FORK

0.9M S JCT CTH J, Grant, WI

Built 2010 Load: 38.6 t ADT: 288

CTH Q

Good

Over: FENNIMORE CREEK

3.8M W JCT CTH G, Grant, WI

Built 2022 Load: 38.6 t ADT: 820

CTH P

Good

Over: SPRING CR

1.0 M E JCT CTH HK, Green, WI

Built 2010 Load: 38.6 t ADT: 283

CTH G

Good

Over: PECATONICA RIVER

1.7M N JCT CTH X, Iowa, WI

Built 2019 Load: 38.6 t ADT: 220

CTH H

Good

Over: MILL CREEK

0.1M E JCT CTH T TO W, Iowa, WI

Built 2021 Load: 38.6 t ADT: 340

LRD POPLAR ST

Good

Over: MONTREAL RIVER

0.1M E JCT USH 51, Iron, WI

Built 2010 Load: 38.6 t ADT: 5,591

STH 19

Good

Over: MAUNESHA RIVER

0.3 MI W JCT STH 89, Jefferson, WI

Built 2017 Load: 38.6 t ADT: 5,100

STH 106

Good

Over: TRIBUTARY TO ROCK RIVER

500 FT E JCT FALK RD, Jefferson, WI

Built 2021 Load: 38.6 t ADT: 2,200

CTH A

Good

Over: BR LITTLE RIB RIVER

0.9M W JCT CTH O, Marathon, WI

Built 2010 Load: 38.6 t ADT: 994

LRD E MICHIGAN ST

Good

Over: MILWAUKEE RIVER

0.1M W JCT USH 18, Milwaukee, WI

Built 1978 Load: 38.6 t ADT: 5,300

CTH PP

Good

Over: BEAR CREEK

1.6M N JCT USH 12, Monroe, WI

Built 2011 Load: 38.6 t ADT: 2,100

CTH D

Good

Over: WISCONSIN RIVER 51

0.4M E JCT CTH E, Oneida, WI

Built 2009 Load: 38.6 t ADT: 600

CTH W

Good

Over: TRIMBELLE RIVER

0.7M E JCT STH 65, Pierce, WI

Built 2020 Load: 38.6 t ADT: 194

LRD CTH R

Good

Over: LITTLE PLOVER RIVER

0.1M N JCT BLUEBIRD DR., Portage, WI

Built 2023 Load: 38.6 t ADT: 5,350

LRD CORTLAND LN (D

Good

Over: MILL CREEK

0.1M E JCT USH 14, Richland, WI

Built 2010 Load: 38.6 t ADT: 100

CTH V

Good

Over: TWIN CREEK

3.5M E JCT STH 33, Sauk, WI

Built 2019 Load: 38.6 t ADT: 1,900

STH 29 WB

Good

Over: MIDDLE BRANCH EMBARRASS

5 MI. WEST OF CTH D, Shawano, WI

Built 2016 Load: 38.6 t ADT: 4,450

CTH P

Good

Over: BIG SLOUGH CREEK

1.9M E JCT STH 121, Trempealeau, WI

Built 2019 Load: 38.6 t ADT: 325

LRD KOUBA VALLEY R

Good

Over: S BRANCH BARABOO RIVER

1.6M W JUNCT STH 80, Vernon, WI

Built 2014 Load: 38.6 t ADT: 100

LRD SOUTH ELK RUN

Good

Over: ELK RUN

1.4M W JCT CTH SS, Vernon, WI

Built 2019 Load: 38.6 t ADT: 58

USH 18

Good

Over: BARK RIVER

1.9 MI E JCT CTH BB, Waukesha, WI

Built 2023 Load: 38.6 t ADT: 5,100

LRD WEST ROAD

Good

Over: EMMONS CREEK

0.06M S JCT EMMONS CREEK, Waupaca, WI

Built 2015 Load: 38.6 t ADT: 120

LRD WEST ROAD

Good

Over: RADLEY CREEK

0.3M N JCT STH 22, Waupaca, WI

Built 2015 Load: 38.6 t ADT: 190

LRD WEST WAUKAU AV

Good

Over: GALLUPS-MERRITTS CREEK

0.1M W JCT CTH I, Winnebago, WI

Built 2019 Load: 38.6 t ADT: 870

LRD CZECH RD

Good

Over: ROCHE A CRI CREEK

3.2M E JCT STH 13, Adams, WI

Built 1984 Load: 38.9 t ADT: 82

CTH W

Good

Over: BIG ROCHE A CRI CREEK

1.1 MI N. JCT CTH O, Adams, WI

Built 2005 Load: 38.9 t ADT: 180

LRD MANKENBURG RD

Good

Over: CHIPPEWA RIVER 34

4.2M E JCT STH 13, Ashland, WI

Built 1988 Load: 38.9 t ADT: 139

Showing 11,851-11,900 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.