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

CNW RR

Unknown

Over: CTH H

1.7M N JCT CTH S, Juneau, WI

Built 1892 ADT: 293

CTH ML

Unknown

Over: IH 41/94

AT CTH ML, Kenosha, WI

Built 2003 ADT: 90,900

IH RAMP IH 41 NB/I

Unknown

Over: IH RAMP REST AREA TO IH

TOWN OF PLEASANT PRAIRIE, Kenosha, WI

Built 1990 ADT: 520

STH 165 EB

Unknown

Over: IH 41/94

3.3M E JCT STH 50 TO E, Kenosha, WI

Built 1992 ADT: 97,300

STH 165 WB

Unknown

Over: IH 41/94

3.3M E JCT STH 50 TO E, Kenosha, WI

Built 1992 ADT: 97,300

IH 41 SB/94 EB

Unknown

Over: STH 50

1.8M S JCTH STH 158 TO EA, Kenosha, WI

Built 2012 ADT: 28,200

IH 41 NB/94 WB

Unknown

Over: STH 50

1.8M S JCT STH 158 TO EAS, Kenosha, WI

Built 2013 ADT: 31,500

IH 41 SB/94 EB

Unknown

Over: CTH C

AT IH 41 SB/IH 94 EB, Kenosha, WI

Built 2009 ADT: 11,300

IH 41 NB/94 WB

Unknown

Over: CTH C

AT I-94, Kenosha, WI

Built 2010 ADT: 11,300

IH 41 SB/94 EB

Unknown

Over: CTH K

0.9M W JCT CTH HH, Kenosha, WI

Built 2012 ADT: 7,800

IH 41 NB/94 WB

Unknown

Over: CTH K

0.9M W JCT CTH HH, Kenosha, WI

Built 2013 ADT: 7,000

IH 41 SB/94 EB

Unknown

Over: STH 158

1.9M W JCT STH 192, Kenosha, WI

Built 2012 ADT: 19,800

IH 41 NB/94 WB

Unknown

Over: STH 158

1.8M W JCT STH 192, Kenosha, WI

Built 2013 ADT: 19,800

IH 41 SB/94 EB

Unknown

Over: CTH N

1.3M W JCT STH 142, Kenosha, WI

Built 2014 ADT: 2,400

IH 41 NB/94 WB

Unknown

Over: CTH N

1.3M W JCT STH 142, Kenosha, WI

Built 2013 ADT: 2,400

IH 41 SB/94 EB

Unknown

Over: STH 142

2.1M W JCT CTH H, Kenosha, WI

Built 2014 ADT: 11,400

IH 41 NB/94 WB

Unknown

Over: STH 142

2.1M W JCT CTH H, Kenosha, WI

Built 2013 ADT: 11,400

IH 41 SB/IH 94 EB

Unknown

Over: CTH E

1.9M W JCT CTH H, Kenosha, WI

Built 2019 ADT: 4,500

IH 41 NB/94 WB

Unknown

Over: CTH E

AT IH 41/94, Kenosha, WI

Built 2018 ADT: 3,700

IH 41 SB/IH 94 EB

Unknown

Over: CTH A

1.9M W JCT CTH H, Kenosha, WI

Built 2019 ADT: 460

IH 41 NB/94 WB

Unknown

Over: CTH A

1.9M W JCT CTH H, Kenosha, WI

Built 2018 ADT: 460

IH 41 SB/IH 94 EB

Unknown

Over: CTH KR

AT IH 41, Kenosha, WI

Built 2019 ADT: 10,500

IH 41NB/IH 94 WB

Unknown

Over: CTH KR

AT IH 41, Kenosha, WI

Built 2018 ADT: 5,100

IH 41 SB/94 EB

Unknown

Over: LRD 71ST ST

AT I94, Kenosha, WI

Built 2012 ADT: 8,000

IH 41 NB/94 WB

Unknown

Over: LRD 71ST ST

0.8M E XING OF 70TH ST, Kenosha, WI

Built 2013 ADT: 8,700

STH 50 EB

Unknown

Over: LRD SERVICE RD

AT JCT WITH STH 50, Kenosha, WI

Built 2021 ADT: 200

STH 50 WB

Unknown

Over: LRD SERVICE RD

AT JCT WITH STH 50, Kenosha, WI

Built 2022 ADT: 200

STH 50 EB

Unknown

Over: LRD 77TH AVENUE

AT JCT WITH STH 50, Kenosha, WI

Built 2021 ADT: 800

STH 50 WB

Unknown

Over: LRD 77TH AVENUE

AT JCT WITH STH 50, Kenosha, WI

Built 2022 ADT: 800

CNW RR

Unknown

Over: LRD 75TH ST

0.1M E JCT STH 32, Kenosha, WI

Built 1939 ADT: 10,000

CNW RR

Unknown

Over: STH 32-SHERIDAN RD

0.2M N JCT STH 50, Kenosha, WI

Built 1939 ADT: 14,800

CNW RR

Unknown

Over: LRD 68TH ST

0.1M W JCT STH 32, Kenosha, WI

Built 1939 ADT: 3,500

CNW RR

Unknown

Over: CTH S

2.9M E JCT STH 31, Kenosha, WI

Built 1930 ADT: 9,400

CNW RR

Unknown

Over: STH 158 EB/52ND ST

2.8M E JCT STH 31, Kenosha, WI

Built 1936 ADT: 16,600

CNW RR

Unknown

Over: LRD 43RD ST

0.1M W JCT STH 32, Kenosha, WI

Built 1930 ADT: 9,000

CNW RR

Unknown

Over: LRD 50TH ST

0.1M W JCT STH 32, Kenosha, WI

Built 1931 ADT: 2,310

CNW RR

Unknown

Over: LRD 56TH ST

0.2M W JCT STH 32, Kenosha, WI

Built 1931 ADT: 3,440

CNW RR

Unknown

Over: LRD 57TH ST

0.2M W JCT STH 32, Kenosha, WI

Built 1931 ADT: 4,000

CNW RR

Unknown

Over: LRD 60TH ST

0.2M W JCT STH 32, Kenosha, WI

Built 1931 ADT: 10,150

CNW RR

Unknown

Over: STH 50 - 63RD ST

3.0M E JCT STH 31, Kenosha, WI

Built 1936 ADT: 13,780

CNW RR

Unknown

Over: LRD 65TH ST

0.2M W JCT STH 32, Kenosha, WI

Built 1936 ADT: 7,000

CTH S

Unknown

Over: STH 57

AT CTH S, Kewaunee, WI

Built 2005 ADT: 11,800

IH 90 EB

Unknown

Over: CTH M/CTH B

0.7M S JCT STH 16, La Crosse, WI

Built 1968 ADT: 5,100

IH 90 WB

Unknown

Over: CTH M

0.7M S JCT STH 16, La Crosse, WI

Built 1968 ADT: 5,100

IH 90 EB

Unknown

Over: STH 162

1.8M N JCT CTH II, La Crosse, WI

Built 1968 ADT: 4,200

IH 90 WB

Unknown

Over: STH 162

1.8M N JCT CTH II, La Crosse, WI

Built 1968 ADT: 4,200

IH 90 EB-USH 53 NB

Unknown

Over: LRD OAK ST

0.7M S JCT USH 53, La Crosse, WI

Built 1967 ADT: 3,700

IH 90 WB-USH 53 SB

Unknown

Over: LRD OAK ST

0.7M S JCT USH 53, La Crosse, WI

Built 1967 ADT: 3,700

CTH BW

Unknown

Over: IH 90

1.2M E MINN STATE LINE, La Crosse, WI

Built 1967 ADT: 13,950

CTH B

Unknown

Over: IH 90

1.9M E MINN STATE LINE, La Crosse, WI

Built 1967 ADT: 15,900

Showing 1,051-1,100 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.