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 WHITNALL PARK

Good

Over: TESS CORNERS CREEK

0.03M S JCT W. COLLEGE AV, Milwaukee, WI

Built 2016 Load: 33.0 t ADT: 470

LRD WHITNALL PARK

Good

Over: WHITNALL PARK CREEK

0.03M N JCT W. COLLEGE AV, Milwaukee, WI

Built 2016 Load: 33.0 t ADT: 790

LRD S 6TH ST

Good

Over: KINNICKINNIC RIVER

1.7M S JCT STH 59, Milwaukee, WI

Built 2010 Load: 33.0 t ADT: 9,300

STH 24-FOREST HOME

Good

Over: KINNICKINNIC RIVER

3.6M E JCT IH 894 TO E, Milwaukee, WI

Built 2009 Load: 33.0 t ADT: 12,200

LRD S NICHOLSON RD

Good

Over: OAK CREEK

0.6M N JCT STH 100, Milwaukee, WI

Built 2016 Load: 33.0 t ADT: 1,000

LRD GRANDY RD

Good

Over: SHIOC RIVER

0.8M NORTH CTH F, Outagamie, WI

Built 2012 Load: 33.0 t ADT: 116

STH 171

Good

Over: MILL CREEK

0.2M E JCT CTH E, Richland, WI

Built 2013 Load: 33.0 t ADT: 340

CTH D

Good

Over: TEN MILE CREEK

0.5M W JCT CTH F--16, Rusk, WI

Built 2016 Load: 33.0 t ADT: 720

LRD TAG ALDER ROAD

Good

Over: NAMEKAGON RIVER

0.7M W JCT USH 63, Sawyer, WI

Built 2022 Load: 33.0 t ADT: 50

LRD LUELLOFF RD

Good

Over: SEVEN MILE CREEK

0.8M W JCT CTH LS, Sheboygan, WI

Built 2019 Load: 33.0 t ADT: 55

CTH M

Good

Over: S FK YELLOW RIVER

0.1M S SAILOR CREEK RD, Taylor, WI

Built 2010 Load: 33.0 t ADT: 748

CTH S

Good

Over: WEST FORK KICKAPOO RIVER

0.9M N JCT STH 82, Vernon, WI

Built 2018 Load: 33.0 t ADT: 520

LRD NORTH STREET

Good

Over: MILL RACE OF WW CREEK

.6M W JEFFERSON ST, Walworth, WI

Built 2012 Load: 33.0 t ADT: 1,400

LRD BELL ST.

Good

Over: CANADIAN NATIONAL RR

0.1 M E JCT USH 41, Winnebago, WI

Built 2011 Load: 33.0 t ADT: 21,800

NO DATA ENTERED

Good

Over: BRUNSWEILER RIVER

NO DATA ENTERED, Ashland, WI

Built 2022 Load: 33.4 t ADT: 50

STH 40

Good

Over: HAY CREEK

0.6 M EAST OF CTH B, Chippewa, WI

Built 2012 Load: 33.4 t ADT: 810

CTH PD

Good

Over: BR BADGER MILL CREEK

1.9M W JCT CTH M, Dane, WI

Built 2019 Load: 33.4 t ADT: 11,000

CTH F

Good

Over: HAY RIVER

0.2M S JCT CTH VVV, Dunn, WI

Built 2008 Load: 33.4 t ADT: 273

CTH N NB /BRIDGE

Good

Over: FRENCH CREEK WB

0.8M S JCT STH 95, Jackson, WI

Built 2015 Load: 33.4 t ADT: 520

CTH O

Good

Over: ROBINSON CREEK

0.4M N JCT USH 12, Jackson, WI

Built 2021 Load: 33.4 t ADT: 275

LRD WILL ROAD

Good

Over: DEER CREEK

0.5M N JCT STH 106, Jefferson, WI

Built 2021 Load: 33.4 t ADT: 637

LRD 13TH AVE

Good

Over: PIKE RIVER

0.1M N JCT CTH A, Kenosha, WI

Built 2020 Load: 33.4 t ADT: 1,900

CTH K

Good

Over: N BR COUNTY LINE CREEK

1.9M N JCT CTH F, Marathon, WI

Built 2022 Load: 33.4 t ADT: 3,400

LRD W BROWN ST

Good

Over: CANADIAN PACIFIC RR

0.7M W JCT STH 57, Milwaukee, WI

Built 2018 Load: 33.4 t ADT: 1,000

LRD BRAUN RD/ 60TH

Good

Over: KILBOURN ROAD DITCH

0.7 MILES EAST OF IH 94, Racine, WI

Built 2018 Load: 33.4 t ADT: 3,900

LRD SHARON RD

Good

Over: SPRING BROOK

0.5M S JCT STH 11, Rock, WI

Built 2017 Load: 33.4 t ADT: 740

CTH I

Good

Over: DEER TAIL CREEK

0.3M S JCT CTH P-26, Rusk, WI

Built 2020 Load: 33.4 t ADT: 840

CTH D

Good

Over: LITTLE JUMP RIVER

0.9M E JCT CTH GG TO S, Rusk, WI

Built 2021 Load: 33.4 t ADT: 533

CTH G

Good

Over: LITTLE BARABOO RIVER

0.3M N JCT STH 58, Sauk, WI

Built 2011 Load: 33.4 t ADT: 300

STH 56

Good

Over: BISHOPS BRANCH

2.7M E JCT STH 82 TO E, Vernon, WI

Built 2022 Load: 33.4 t ADT: 1,750

LRD W.WISCONSIN AV

Good

Over: OCONOMOWOC RIVER

4.2M E JCT CTH F, Waukesha, WI

Built 2010 Load: 33.4 t ADT: 9,000

USH 18 WB

Good

Over: PEBBLE CREEK

1.25 MI N JCT STH 59, Waukesha, WI

Built 2019 Load: 33.4 t ADT: 8,250

STH 80

Good

Over: BEAVER CREEK

0.7M N JCT CTH EE, Wood, WI

Built 2013 Load: 33.4 t ADT: 3,400

CTH U

Good

Over: WAUMANDEE CREEK

1.0M N. OF INT. CTH C, Buffalo, WI

Built 2009 Load: 33.7 t ADT: 453

LRD BUELLS VALLEY

Good

Over: BR WAUMANDEE CREEK

1.8M N JCT CTH X, Buffalo, WI

Built 2010 Load: 33.7 t ADT: 103

CTH M

Good

Over: SCOTT CREEK

1.5 MI N OF I, Clark, WI

Built 2012 Load: 33.7 t ADT: 290

STH 98

Good

Over: YELLOW RIVER

TOWN OF SHERMAN, Clark, WI

Built 2015 Load: 33.7 t ADT: 2,600

LRD PRAY AVE

Good

Over: CUNNINGHAM CREEK

0.7M N JCT STH 73, Clark, WI

Built 2020 Load: 33.7 t ADT: 100

CTH K

Good

Over: FLAYTON CREEK

0.3M N JCT STH 64, Dunn, WI

Built 2022 Load: 33.7 t ADT: 600

LRD MAPLE RIDGE RD

Good

Over: LITTLE PLATTE RIVER

1.7M W JCT USH 151, Grant, WI

Built 2013 Load: 33.7 t ADT: 257

CTH D

Good

Over: BR SUGAR RIVER

2.3M N JCT CTH C, Green, WI

Built 2011 Load: 33.7 t ADT: 790

CTH A

Good

Over: ORONTO CREEK

1.3M W JCT STH 122, Iron, WI

Built 2018 Load: 33.7 t ADT: 265

IH 94 EB

Good

Over: JOHNSON CREEK

4.0M E JCT STH 26 TO N, Jefferson, WI

Built 2020 Load: 33.7 t ADT: 21,400

IH 94 WB

Good

Over: JOHNSON CREEK

5.4M W JCT CTH F TO N, Jefferson, WI

Built 2020 Load: 33.7 t ADT: 21,400

LRD MANITOWOC ST E

Good

Over: MUD CREEK

0.5 MI W OF USH 10, Manitowoc, WI

Built 2015 Load: 33.7 t ADT: 890

IH 41/USH 45 SB

Good

Over: HANK AARON STATE TRAIL

0.5 MI S JCT USH 18, Milwaukee, WI

Built 2017 Load: 33.7 t ADT: 49,100

STH 32

Good

Over: OCONTO RIVER

2.0M N JCT CTH CC, Oconto, WI

Built 2014 Load: 33.7 t ADT: 2,300

LRD E HARRIER LANE

Good

Over: APPLE CREEK

0.1 M E N OSPREY DR, Outagamie, WI

Built 2022 Load: 33.7 t ADT: 99

LRD MORNER RD (DEA

Good

Over: DOUGLAS CREEK

0.3M E JCT CTH C, Price, WI

Built 2009 Load: 33.7 t ADT: 100

CTH W

Good

Over: LONG LAKE

2.4M W JCT STH13, Price, WI

Built 2020 Load: 33.7 t ADT: 1,552

Showing 9,601-9,650 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.