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 67

Good

Over: ASHIPPUN RIVER

2.5 MI N JCT CTH K, Waukesha, WI

Built 2010 Load: 35.3 t ADT: 6,100

LRD PLAINVIEW ROAD

Good

Over: BARK RIVER

1.2 MILES WEST OF STH 164, Waukesha, WI

Built 2016 Load: 35.3 t ADT: 2,400

CTH XX

Good

Over: FOX RIVER

0.7M S JCT CTH X, Waushara, WI

Built 1952 Load: 35.3 t ADT: 2,100

LRD 8TH AVE

Good

Over: LITTLE ROCHE A CRI CREEK

1.8M N JCT CTH J, Adams, WI

Built 1988 Load: 35.6 t ADT: 78

CTH H

Good

Over: WHITE CREEK

1.6 MI EAST JCT CTH Z, Adams, WI

Built 2003 Load: 35.6 t ADT: 280

CTH C

Good

Over: TROUT BROOK

1.3M E JCT STH 13, Ashland, WI

Built 1976 Load: 35.6 t ADT: 225

CTH C

Good

Over: MARENGO RIVER

2.0M S JCT STH 112, Ashland, WI

Built 1990 Load: 35.6 t ADT: 161

CTH N

Good

Over: E FK CHIPPEWA RIVER

3.3M E JCT STH 13, Ashland, WI

Built 1990 Load: 35.6 t ADT: 81

LRD WILL RD (DEAD

Good

Over: TYLER FORKS RIVER

0.3M N JCT STH 169, Ashland, WI

Built 1989 Load: 35.6 t ADT: 75

LRD IRR (GOVERNMEN

Good

Over: MARENGO RIVER

0.7M N JCT CTH C, Ashland, WI

Built 2001 Load: 35.6 t ADT: 107

LRD GOSLIN ROAD (D

Good

Over: BEARTRAP CREEK

0.9M N JCT USH 2, Ashland, WI

Built 1999 Load: 35.6 t ADT: 100

LRD MAIN AVE

Good

Over: RED CEDAR RIVER

0.8M S JCT STH 48, Barron, WI

Built 1919 Load: 35.6 t ADT: 13,150

STH 25-MILL ST

Good

Over: QUADERERS CREEK

4.0M N JCT CTH D TO W, Barron, WI

Built 1958 Load: 35.6 t ADT: 3,400

STH 25

Good

Over: LOWER PINE CREEK

1.7M N JCT CTH V, Barron, WI

Built 1976 Load: 35.6 t ADT: 2,500

LRD 23RD STREET

Good

Over: RED CEDAR RIVER

0.2M N JCT STH 48, Barron, WI

Built 1985 Load: 35.6 t ADT: 402

LRD MILL STREET

Good

Over: S BR YELLOW RIVER

0.3M N JCT USH 8, Barron, WI

Built 1985 Load: 35.6 t ADT: 1,983

LRD MILL STREET

Good

Over: N CHAN YELLOW RIVER

0.3M N JCT USH 8, Barron, WI

Built 1985 Load: 35.6 t ADT: 1,962

CTH K

Good

Over: BR MOON CREEK

.2 MI. S. OF 11TH. AVE., Barron, WI

Built 1986 Load: 35.6 t ADT: 981

USH 8-DIVISION AVE

Good

Over: YELLOW RIVER

0.5M E JCT STH 25 TO N, Barron, WI

Built 1990 Load: 35.6 t ADT: 11,700

LRD 18 3/4 ST

Good

Over: BROWN CREEK

0.7M S JCT CTH OO, Barron, WI

Built 1993 Load: 35.6 t ADT: 47

LRD 8TH AVE

Good

Over: HAY RIVER

1.8M E JCT CTH P, Barron, WI

Built 1993 Load: 35.6 t ADT: 64

CTH D

Good

Over: MOOSE EAR CREEK

0.3 M W OF 28TH STREET, Barron, WI

Built 1997 Load: 35.6 t ADT: 1,334

LRD 1/2 AVENUE

Good

Over: VANCE CREEK

3.2M S JCT CTH A, Barron, WI

Built 2001 Load: 35.6 t ADT: 86

LRD 10TH AVE

Good

Over: TURTLE CREEK

1.4M E JCT CTH K, Barron, WI

Built 2004 Load: 35.6 t ADT: 105

CTH NN

Good

Over: SPRING CREEK

1.0M S JCT STH 48, Barron, WI

Built 2017 Load: 35.6 t ADT: 270

CTH D

Good

Over: NAMEKAGON RIVER

0.7M N JCT CTH M, Bayfield, WI

Built 1964 Load: 35.6 t ADT: 558

STH 13

Good

Over: THOMPSON CREEK

6.1M N JCT USH 2 TO W, Bayfield, WI

Built 1980 Load: 35.6 t ADT: 7,000

LRD WHITE BIRCH RD

Good

Over: FLAG RIVER

2.4M E JCT STH 13, Bayfield, WI

Built 1987 Load: 35.6 t ADT: 57

STH 13

Good

Over: SISKIWIT RIVER

11.0M N JCT CTH K TO E, Bayfield, WI

Built 1992 Load: 35.6 t ADT: 990

LRD LAKE VIEW ROAD

Good

Over: FLAG RIVER

0.7M N JCT STH 13, Bayfield, WI

Built 1992 Load: 35.6 t ADT: 95

LRD TAYLOR LANE (D

Good

Over: LONG LAKE BRANCH

2.25M N OF STH 63, Bayfield, WI

Built 2014 Load: 35.6 t ADT: 100

LRD OLD USH 2

Good

Over: BR N FISH CREEK

1.8M W JCT USH 2, Bayfield, WI

Built 2008 Load: 35.6 t ADT: 104

CTH G

Good

Over: BRANCH RIVER

0.6M N JCT CTH Z, Brown, WI

Built 1998 Load: 35.6 t ADT: 1,800

CTH P

Good

Over: SCHOOL CREEK

0.1M S JCT STH 54, Brown, WI

Built 2004 Load: 35.6 t ADT: 1,350

LRD CTH"EA"-HURON

Good

Over: BAIRD CREEK

1.8M S JCT STH 54, Brown, WI

Built 1980 Load: 35.6 t ADT: 6,200

LRD MIDWAY RD

Good

Over: EAST RIVER

0.4M E JCT STH 57, Brown, WI

Built 1994 Load: 35.6 t ADT: 268

LRD WEST FRONTAGE

Good

Over: APPLE CREEK

2.4M S JCT CTH S, Brown, WI

Built 1999 Load: 35.6 t ADT: 976

LRD EAST FRONTAGE

Good

Over: APPLE CREEK

2.4M S JCT CTH S, Brown, WI

Built 1999 Load: 35.6 t ADT: 976

LRD CHURCH RD

Good

Over: WEQUOICK CREEK

0.1M E OF STH "57", Brown, WI

Built 2003 Load: 35.6 t ADT: 795

LRD RIVER RD

Good

Over: BRANCH RIVER

2.3M S JCT CTH Z, Brown, WI

Built 2004 Load: 35.6 t ADT: 105

CTH S

Good

Over: ASHWAUBENON CR

100" EAST OF CTH "U", Brown, WI

Built 2004 Load: 35.6 t ADT: 4,500

CTH M

Good

Over: SUAMICO RIVER

0.1M S JCT CTH B, Brown, WI

Built 2021 Load: 35.6 t ADT: 1,600

STH 121

Good

Over: S FK ELK CREEK

1.3M E JCT CTH H, Buffalo, WI

Built 1986 Load: 35.6 t ADT: 470

LRD TURNER VALLEY

Good

Over: TURNER VALLEY CREEK

0.5M N JCT CTH Z, Buffalo, WI

Built 1998 Load: 35.6 t ADT: 16

CTH X

Good

Over: BOHLINGER VALLEY CREEK

0.1M E JCT CTH U, Buffalo, WI

Built 1993 Load: 35.6 t ADT: 347

LRD BOLAND VALLEY

Good

Over: BOLAND VALLEY CREEK

TOWN OF GLENCOE, Buffalo, WI

Built 2001 Load: 35.6 t ADT: 86

STH 37

Good

Over: MUD CREEK

0.1M N JCT CTH F, Buffalo, WI

Built 2003 Load: 35.6 t ADT: 750

LRD TREE FARM ROAD

Good

Over: JAHNS VALLEY CREEK

0.1M NORTH CTH XX, Buffalo, WI

Built 2009 Load: 35.6 t ADT: 103

STH 35-MAIN ST

Good

Over: MISSISSIPPI RIVER TRIBUT

3.1M N JCT STH 54 TO W, Buffalo, WI

Built 2023 Load: 35.6 t ADT: 5,500

STH 35-MAIN ST

Good

Over: MISSISSIPPI RIVER TRIB

0.1M N JCT CTH YY, Buffalo, WI

Built 2019 Load: 35.6 t ADT: 5,400

Showing 10,301-10,350 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.