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 82

Good

Over: DRY HOLLOW CREEK

1.6M E JCT CTH SS, Vernon, WI

Built 1996 Load: 32.4 t ADT: 1,100

LRD WEST SALEM RID

Good

Over: BR W FK KICKAPOO RIVER

1.2M S JCT CTH S, Vernon, WI

Built 1993 Load: 32.4 t ADT: 44

CTH S

Good

Over: BR W FK KICKAPOO RIVER

0.1M S JCT STH 82, Vernon, WI

Built 1994 Load: 32.4 t ADT: 271

LRD TROUT RD (DEAD

Good

Over: BILLINGS CREEK

0.1M S JCT CTH Z, Vernon, WI

Built 1994 Load: 32.4 t ADT: 10

CTH P

Good

Over: WARNER CREEK

0.5M E JCT STH 131, Vernon, WI

Built 1996 Load: 32.4 t ADT: 119

STH 82

Good

Over: W BR BARABOO RIVER

2.2M E JCT CTH P, Vernon, WI

Built 1999 Load: 32.4 t ADT: 1,100

LRD S BAD AXE RD

Good

Over: S FK BAD AXE RIVER

0.9M W JCT CTH N, Vernon, WI

Built 2001 Load: 32.4 t ADT: 80

CTH P

Good

Over: WARNER CREEK

1.7M E JCT STH 131, Vernon, WI

Built 2001 Load: 32.4 t ADT: 118

LRD HAGEN LANE (DE

Good

Over: COON CREEK

0.1M S JCT STH 162, Vernon, WI

Built 2001 Load: 32.4 t ADT: 10

LRD S HARRISON VAL

Good

Over: HARRISON CREEK

2.2M W JCT CTH S, Vernon, WI

Built 2001 Load: 32.4 t ADT: 40

CTH P

Good

Over: WARNER CREEK

2.3M E JCT STH 131, Vernon, WI

Built 2001 Load: 32.4 t ADT: 107

CTH F

Good

Over: BILLINGS CREEK

0.9M W JCT CTH ZZ, Vernon, WI

Built 2002 Load: 32.4 t ADT: 53

CTH T

Good

Over: SPRING VALLY CREEK

2.0M N JCT USH 14, Vernon, WI

Built 2002 Load: 32.4 t ADT: 217

LRD HANSON LANE (D

Good

Over: COON CREEK

0.1M S JCT STH 162, Vernon, WI

Built 2006 Load: 32.4 t ADT: 30

CTH Q

Good

Over: BR S BRANCH CREEK

1.0 MILES SOUTH OF THE JU, Vernon, WI

Built 2021 Load: 32.4 t ADT: 520

STH 35

Good

Over: BATTLE HOLLOW CREEK

2.4 MILES NORTH OF THE JU, Vernon, WI

Built 2022 Load: 32.4 t ADT: 4,645

STH 70

Good

Over: SQUAW CREEK

22.2M E JCT STH 13, Vilas, WI

Built 1980 Load: 32.4 t ADT: 2,100

USH 45

Good

Over: PIONEER CREEK

AT PIONEER CREEK, Vilas, WI

Built 2009 Load: 32.4 t ADT: 3,600

USH 12

Good

Over: JACKSON CREEK

2.6 MI E JCT IH 43, Walworth, WI

Built 1968 Load: 32.4 t ADT: 18,800

STH 36

Good

Over: ORE CREEK

0.7M N JCT STH 120, Walworth, WI

Built 1986 Load: 32.4 t ADT: 2,800

CTH B

Good

Over: N BR NIPPERSINK CREEK

2.8M W JCT CTH H TO E, Walworth, WI

Built 1989 Load: 32.4 t ADT: 1,500

USH 12

Good

Over: SPRING BROOK

0.12 MI E JCT STH 89, Walworth, WI

Built 2002 Load: 32.4 t ADT: 7,500

LRD SHERIDAN SPRIN

Good

Over: WHITE R

0.1 MI S OF BUCKBY ROAD, Walworth, WI

Built 2005 Load: 32.4 t ADT: 1,400

STH 36

Good

Over: BR WHITE R

3.8 MI E JCT STH 120, Walworth, WI

Built 2009 Load: 32.4 t ADT: 4,700

LRD NORTH STREET

Good

Over: MILL RACE OF WW CREEK

.5M W JEFFERSON ST, Walworth, WI

Built 2012 Load: 32.4 t ADT: 1,400

LRD HOSPITAL RD

Good

Over: BR ORE CREEK

0.8M W JCT STH 36, Walworth, WI

Built 2020 Load: 32.4 t ADT: 930

LRD DAM RD

Good

Over: TURTLE CREEK

2.2M N JCT STH 11, Walworth, WI

Built 2017 Load: 32.4 t ADT: 500

LRD RASMUSSEN RD

Good

Over: BR LITTLE CHICOG CR

1M E JCT. STH 77, Washburn, WI

Built 2002 Load: 32.4 t ADT: 10

IH 41-USH 45 NB

Good

Over: BR CEDAR CREEK

1.1M N JCT STH 167, Washington, WI

Built 1975 Load: 32.4 t ADT: 31,550

STH 33

Good

Over: MILWAUKEE RIVER

1.3M E JCT USH 45, Washington, WI

Built 1975 Load: 32.4 t ADT: 18,800

LRD CEDAR PKWY

Good

Over: CEDAR CREEK

0.2M S JCT STH 60, Washington, WI

Built 1984 Load: 32.4 t ADT: 537

CTH H

Good

Over: BR W BR MILWAUKEE RIVER

0.9M W JCT HIGHLAND DR, Washington, WI

Built 1979 Load: 32.4 t ADT: 2,100

STH 60

Good

Over: CEDAR CREEK

2.0 MI E JCT USH 45, Washington, WI

Built 1981 Load: 32.4 t ADT: 7,200

CTH W

Good

Over: LIMESTONE CREEK

0.8M N JCT CTH S, Washington, WI

Built 2021 Load: 32.4 t ADT: 2,700

IH 41/USH 45 SB

Good

Over: BONNIWELL CREEK

0.7 MI S JCT STH 145, Washington, WI

Built 2015 Load: 32.4 t ADT: 31,550

CTH D

Good

Over: KOHLSVILLE RIVER

2.5 MI EAST JCT IH 41, Washington, WI

Built 2016 Load: 32.4 t ADT: 3,000

LRD PROGRESS DRIVE

Good

Over: QUAAS CREEK

0.8M E JCT CTH P, Washington, WI

Built 1990 Load: 32.4 t ADT: 168

LRD BROOKFIELD RD

Good

Over: DEER CREEK

0.3M S JCT USH 18, Waukesha, WI

Built 1998 Load: 32.4 t ADT: 6,800

LRD RIVERCREST DR

Good

Over: MENOMONEE RIVER

.03M S OF COUNTY LINE ROA, Waukesha, WI

Built 1999 Load: 32.4 t ADT: 7,300

STH 164

Good

Over: PEBBLE BROOK

4.1 MI N JCT IH 43, Waukesha, WI

Built 1967 Load: 32.4 t ADT: 22,000

IH RAMP, STH 100 -

Good

Over: BR MENOMONEE RIVER

0.2 MI S JCT STH 74, Waukesha, WI

Built 1962 Load: 32.4 t ADT: 4,200

LRD HEWITTS PT

Good

Over: OCONOMOWOC RIVER

2.8M N JCT STH 67, Waukesha, WI

Built 1989 Load: 32.4 t ADT: 2,667

STH 100

Good

Over: MENOMONEE RIVER

0.5 MI E JCT STH 145, Waukesha, WI

Built 1977 Load: 32.4 t ADT: 12,700

CTH Z

Good

Over: SCUPPERNONG CREEK

1.5M W JCT STH 67, Waukesha, WI

Built 1988 Load: 32.4 t ADT: 1,300

STH 59-GREENFIELD

Good

Over: POPLAR CREEK

1.8 MI E JCT STH 164, Waukesha, WI

Built 1993 Load: 32.4 t ADT: 16,100

STH 36 EB

Good

Over: MUSKEGO CANAL

7.5M N JCT STH 83 TO N, Waukesha, WI

Built 1995 Load: 32.4 t ADT: 12,900

CTH M (NORTH AVE)

Good

Over: UNDERWOOD CREEK

0.1 M W JCT CTH YY, Waukesha, WI

Built 1995 Load: 32.4 t ADT: 12,100

LRD BIG BEND RD

Good

Over: PEBBLE BROOK CREEK

0.5 M S JCT STH 59/164, Waukesha, WI

Built 1997 Load: 32.4 t ADT: 172

CTH E

Good

Over: OCONOMOWOC RIVER

0.3 MI S JCT CTH Q, Waukesha, WI

Built 2013 Load: 32.4 t ADT: 9,400

CTH LO

Good

Over: JERICHO CREEK

0.1 MI W. OF CTH E, Waukesha, WI

Built 2003 Load: 32.4 t ADT: 2,300

Showing 9,451-9,500 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.