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

STH 57 NB

Unknown

Over: STH 54

2.7M W JCT CTH T, Brown, WI

Built 1999 ADT: 8,500

STH 172 EB

Unknown

Over: LRD HOLMGREN WAY

VILLAGE OF ASHWAUBENON, Brown, WI

Built 1998 ADT: 12,700

STH 172 WB

Unknown

Over: LRD HOLMGREN WAY

VILLAGE OF ASHWAUBENON, Brown, WI

Built 1998 ADT: 12,700

STH CONNECTOR STH

Unknown

Over: LRD HOLMGREN WAY

VILLAGE OF ASHWAUBENON, Brown, WI

Built 1998 ADT: 12,700

CTH P

Unknown

Over: STH 57

0.9M E JCT CTH X, Brown, WI

Built 2005 ADT: 12,700

LRD CTH P

Unknown

Over: LRD BADER RD

AT CTH P, Brown, WI

Built 2005 ADT: 100

LRD BAY SETTLEMENT

Unknown

Over: STH 57

AT BAY SETTLEMENT RD, Brown, WI

Built 2005 ADT: 28,000

STH 96

Unknown

Over: CTH ZZ

AT STH 96 AND FOX RIVER, Brown, WI

Built 2015 ADT: 1,800

STH 172 EB

Unknown

Over: CTH AAA ONEIDA ST

1.1M S JCT STH 32, Brown, WI

Built 2010 ADT: 21,500

STH 172 WB

Unknown

Over: LRD ONEIDA ST

AT STH 172, Brown, WI

Built 2009 ADT: 21,500

CTH FF

Unknown

Over: STH 29 EB

AT CTH FF, Brown, WI

Built 2014 ADT: 23,000

CTH VV

Unknown

Over: STH 29

5 MI W JCT IH 41, Brown, WI

Built 2022 ADT: 23,300

CTH R

Unknown

Over: LRD WALL ST

0.3M S JCT CTH T, Brown, WI

Built 2020 ADT: 720

STH 32 NB-STH 57 N

Unknown

Over: CTH PP

0.6M N JCT CTH X TO E, Brown, WI

Built 2023 ADT: 5,250

CTH F (SCHEURING R

Unknown

Over: IH 41

AT INTERSECTION, Brown, WI

Built 2011 ADT: 59,100

IH 41 SB

Unknown

Over: CTH EE

1.9M E JCT CTH EB, Brown, WI

Built 2013 ADT: 8,600

IH 41 NB

Unknown

Over: CTH EE

1.9M E JCT CTH EB, Brown, WI

Built 2013 ADT: 8,600

IH 41 SB

Unknown

Over: CTH G

1.6M W JCT STH 57, Brown, WI

Built 2013 ADT: 12,100

IH 41 NB

Unknown

Over: CTH G

2.3M S JCT STH 172, Brown, WI

Built 2013 ADT: 12,100

IH 41SB ON RAMP FR

Unknown

Over: CTH G

1.7M W JCT STH 57, Brown, WI

Built 2012 ADT: 12,100

LRD HANSEN ROAD

Unknown

Over: IH 41

HANSEN RD, Brown, WI

Built 2014 ADT: 83,200

IH 41 NB RAMP

Unknown

Over: LRD ONEIDA STREET

AT IH 41 NB RAMP, Brown, WI

Built 2014 ADT: 15,700

LRD GLORY RD

Unknown

Over: IH 41

AT INTERSECTION, Brown, WI

Built 2011 ADT: 74,600

IH 41 SB

Unknown

Over: LRD PARKVIEW ROAD

AT IH 41, Brown, WI

Built 2015 ADT: 2,500

IH 41 NB

Unknown

Over: LRD PARKVIEW ROAD

AT IH 41, Brown, WI

Built 2015 ADT: 2,500

IH 41 SB

Unknown

Over: LRD ONEIDA ST EB

0.5 MI S JCT HANSEN RD, Brown, WI

Built 2016 ADT: 15,700

IH 41 NB

Unknown

Over: LRD ONEIDA STREET

AT IH 41 NB, Brown, WI

Built 2015 ADT: 15,700

IH 41 NB OFF-RAMP

Unknown

Over: LRD PARKVIEW RD

IH 41 NB OFF-RAMP TO ONEI, Brown, WI

Built 2014 ADT: 2,500

IH 41 NB ON-RAMP F

Unknown

Over: STH 172 EB

USH 41 NB ON-RAMP FROM ST, Brown, WI

Built 2014 ADT: 34,250

IH 41 NB ON RAMP F

Unknown

Over: STH 172 WB

USH 41 NB ON RAMP FROM ST, Brown, WI

Built 2014 ADT: 34,250

IH 41 SB

Unknown

Over: STH 172 EB

1.4 MI E JCT PACKERLAND D, Brown, WI

Built 2016 ADT: 34,250

IH 41 NB

Unknown

Over: STH 172 EB

AT IH 41, Brown, WI

Built 2015 ADT: 34,250

IH 41 SB

Unknown

Over: IH STH 172 WB

0.8 MI W RAMP FROM PILGRI, Brown, WI

Built 2016 ADT: 32,450

IH 41 NB

Unknown

Over: STH 172 WB

UNDER IH 41 NB, Brown, WI

Built 2015 ADT: 34,250

IH 41 SB

Unknown

Over: CORMIER ROAD

AT IH 41 SB, Brown, WI

Built 2015 ADT: 7,500

IH 41 NB

Unknown

Over: CORMIER ROAD

AT IH 41 NB, Brown, WI

Built 2015 ADT: 7,500

IH 41 SB

Unknown

Over: LRD MORRIS AVE

AT IH 41 SB, Brown, WI

Built 2015 ADT: 2,000

IH 41 NB

Unknown

Over: LRD MORRIS AVENUE

1.2 MI W OF S ONEIDA ST, Brown, WI

Built 2015 ADT: 2,000

IH 41 SB

Unknown

Over: CTH LOMBARDI AVE (CTH VK

AT IH 41, Brown, WI

Built 2015 ADT: 24,200

IH 41 NB

Unknown

Over: CTH LOMBARDI AVE (CTH VK

AT IH 41, Brown, WI

Built 2015 ADT: 24,200

IH 41 SB

Unknown

Over: LRD 9TH ST

AT IH 41, Brown, WI

Built 2012 ADT: 5,800

IH 41 NB

Unknown

Over: LRD 9TH ST

AT IH 41, Brown, WI

Built 2012 ADT: 5,800

STH 54

Unknown

Over: IH 41

1.3M S JCT STH 29, Brown, WI

Built 2012 ADT: 83,900

IH 41 SB-EAST

Unknown

Over: LRD LARSEN RD

0.6M N JCT STH 54, Brown, WI

Built 2014 ADT: 5,100

IH 41 NB-WEST

Unknown

Over: LRD LARSEN RD

0.6M N JCT STH 54, Brown, WI

Built 2014 ADT: 5,100

IH 41 SB

Unknown

Over: LRD BADGERLAND DR.

0.2M S JCT STH 29, Brown, WI

Built 2014 ADT: 500

IH 41 NB

Unknown

Over: LRD BADGERLAND DR.

0.2M S JCT STH 29, Brown, WI

Built 2014 ADT: 500

IH STH 29 EB/STH 3

Unknown

Over: LRD BADGERLAND DR/CN RAI

0.2M S JCT STH 32, Brown, WI

Built 2012 ADT: 500

IH 41 SB

Unknown

Over: STH 29/SHAWANO AVENUE

UNDER IH 41 SB, Brown, WI

Built 2014 ADT: 21,900

IH 41 NB

Unknown

Over: STH 29/SHAWANO AVENUE

UNDER IH 41 NB, Brown, WI

Built 2014 ADT: 21,900

Showing 151-200 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.