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 27

Good

Over: THORNAPPLE RIVER

1.6M N JCT CTH A, Rusk, WI

Built 2016 Load: 33.7 t ADT: 2,700

LRD SIMPSON ROAD

Good

Over: CAMELS CREEK

0.2 M S JCT CTH P, Sauk, WI

Built 2012 Load: 33.7 t ADT: 101

LRD HANSON RD (DEA

Good

Over: BRUNET RIVER

0.25M E JCT OLD CTH J RD, Sawyer, WI

Built 2018 Load: 33.7 t ADT: 30

LRD HAMM DR

Good

Over: PINE CREEK

0.3M S JCT CTH A, Taylor, WI

Built 2010 Load: 33.7 t ADT: 120

USH 14

Good

Over: KICKAPOO RIVER

0.2 M E JCT USH 61, Vernon, WI

Built 2016 Load: 33.7 t ADT: 3,300

CTH P

Good

Over: UNNAMED TRIB TO TIMBER C

0.15M E JCT LOVAS HILL RO, Vernon, WI

Built 2023 Load: 33.7 t ADT: 194

CTH P

Good

Over: UNNAMED TRIB TO TIMBER C

0.13M N JCT SNOWFLAKE CUR, Vernon, WI

Built 2023 Load: 33.7 t ADT: 194

IH 41 NB

Good

Over: KOHLSVILLE RIVER

4.4 M N JCT STH 33, Washington, WI

Built 2017 Load: 33.7 t ADT: 15,750

LRD 8TH DRIVE

Good

Over: BINGHAM CREEK

0.5M N JCT STH 21, Adams, WI

Built 1986 Load: 34.0 t ADT: 80

LRD 18TH AVE

Good

Over: BIG ROCHE A CRI CREEK

1.2M S JCT STH 21, Adams, WI

Built 1991 Load: 34.0 t ADT: 107

LRD GORDON LAKE RD

Good

Over: DRYDEN CREEK

0.6M S JCT STH 13, Ashland, WI

Built 1988 Load: 34.0 t ADT: 161

LRD BUTLER RD

Good

Over: DEVILS CREEK

0.3M N JCT STH 77, Ashland, WI

Built 1996 Load: 34.0 t ADT: 117

LRD MASTERSON FIRE

Good

Over: E FK CHIPPEWA RIVER

3.0M E JCT CTH N, Ashland, WI

Built 2003 Load: 34.0 t ADT: 53

LRD 5TH AVENUE

Good

Over: HAY RIVER

0.2M W JCT CTH F, Barron, WI

Built 1988 Load: 34.0 t ADT: 85

LRD 2 1/2 AVENUE

Good

Over: LOWER PINE CREEK

2.7M E JCT CTH F, Barron, WI

Built 1988 Load: 34.0 t ADT: 85

LRD 18 1/2 AVE

Good

Over: SILVER CREEK

2.7M E JCT CTH M, Barron, WI

Built 1990 Load: 34.0 t ADT: 56

LRD 13 3/4 AVENUE

Good

Over: RICE CREEK

0.3M W OF 22ND STREET, Barron, WI

Built 1991 Load: 34.0 t ADT: 94

LRD 16TH ST

Good

Over: FOUR MILE CREEK

1.3M S JCT USH 8, Barron, WI

Built 1991 Load: 34.0 t ADT: 470

CTH B

Good

Over: BEAR CREEK

0.6M W JCT CTH SS, Barron, WI

Built 1994 Load: 34.0 t ADT: 490

LRD 18TH AVE

Good

Over: VERMILLION RIVER

2.8M E JCT CTH P, Barron, WI

Built 1994 Load: 34.0 t ADT: 111

CTH A

Good

Over: TURTLE CREEK

TURTLE CR, Barron, WI

Built 2002 Load: 34.0 t ADT: 798

CTH D

Good

Over: RED CEDAR RIVER

1.6M W JCT CTH SS, Barron, WI

Built 2001 Load: 34.0 t ADT: 909

LRD 29TH ST

Good

Over: BR SPRING CREEK

0.2M S OF 23RD AVENUE, Barron, WI

Built 1984 Load: 34.0 t ADT: 23

CTH A

Good

Over: BR UPPER PINE CREEK

2.2M W JCT CTH U TO N, Barron, WI

Built 1979 Load: 34.0 t ADT: 741

LRD DAM RD

Good

Over: NAMEKAGON RIVER

1.6M N JCT CTH M, Bayfield, WI

Built 2000 Load: 34.0 t ADT: 151

LRD LAKEVIEW RD

Good

Over: FLAG RIVER

0.8M N JCT STH 13, Bayfield, WI

Built 1988 Load: 34.0 t ADT: 79

LRD SWEDEN RD

Good

Over: TWENTY MILE CREEK

0.7M W JCT USH 63, Bayfield, WI

Built 1990 Load: 34.0 t ADT: 102

STH 172 WB

Good

Over: EAST RIVER

0.2M W JCT CTH XX, Brown, WI

Built 1982 Load: 34.0 t ADT: 42,350

LRD DALY DRIVE

Good

Over: SORENSON CREEK

0.1M E JCT CTH V, Brown, WI

Built 1979 Load: 34.0 t ADT: 1,527

STH 29 - WALNUT ST

Good

Over: FOX RIVER

3.2M E JCT USH 41 TO N, Brown, WI

Built 1986 Load: 34.0 t ADT: 11,100

STH 29 - WALNUT ST

Good

Over: FOX RIVER

3.2M E JCT USH 41 TO N, Brown, WI

Built 1986 Load: 34.0 t ADT: 11,100

CTH EB

Good

Over: DUCK CREEK

0.3M N OF JCT STH 29, Brown, WI

Built 1998 Load: 34.0 t ADT: 8,500

CTH EB

Good

Over: DUCK CREEK

0.3M N OF JCT STH 29, Brown, WI

Built 1998 Load: 34.0 t ADT: 8,800

LRD CENTENNIAL CEN

Good

Over: THORNBERRY CREEK

AT THORNBERRY CREEK, Brown, WI

Built 2014 Load: 34.0 t ADT: 1,809

IH I41 SB OFF RAMP

Good

Over: ASHWAUBENON CREEK

USH 41 TO CTH F, Brown, WI

Built 2011 Load: 34.0 t ADT: 3,700

CTH G

Good

Over: EAGLE CREEK

3.1M W JCT STH 95, Buffalo, WI

Built 1985 Load: 34.0 t ADT: 303

CTH J

Good

Over: TAMARACK CREEK

0.6M S JCT CTH D TO E, Buffalo, WI

Built 1994 Load: 34.0 t ADT: 217

LRD ACCOLA RD (DEA

Good

Over: PINE CREEK

0.1M W JCT CTH F, Buffalo, WI

Built 1993 Load: 34.0 t ADT: 10

STH 25

Good

Over: SPRING CREEK

3.5M N JCT CTH V, Buffalo, WI

Built 2002 Load: 34.0 t ADT: 2,700

LRD BAUER RD

Good

Over: HOLMES CR

0.2M N JCT STH 10 TO W, Buffalo, WI

Built 2003 Load: 34.0 t ADT: 117

LRD CHICKEN VALLEY

Good

Over: CHICKEN VALLEY CREEK

0.1M N JCT FRONTAGE RD, Buffalo, WI

Built 2005 Load: 34.0 t ADT: 766

CTH E

Good

Over: BR WAUMANDEE CREEK

1.9M E JCT CTH U, Buffalo, WI

Built 2005 Load: 34.0 t ADT: 439

CTH AA

Good

Over: WEISENBERG VALLEY CREEK

1.9M N JCT CTH K, Buffalo, WI

Built 2004 Load: 34.0 t ADT: 157

LRD PRONSCHINSKE D

Good

Over: SWINNS VALLEY CREEK

0.1M E JCT CTH C, Buffalo, WI

Built 2022 Load: 34.0 t ADT: 20

LRD LAKE WOOD DR

Good

Over: TRADE LAKE

0.3M N JCT CTH Z, Burnett, WI

Built 1989 Load: 34.0 t ADT: 113

LRD BAKKER RD

Good

Over: N FK CLAM RIVER

2.0M E JCT CTH H, Burnett, WI

Built 2019 Load: 34.0 t ADT: 100

USH 53 SB

Good

Over: DUNCAN CREEK

6.8M S JCT STH 40 TO N, Chippewa, WI

Built 1971 Load: 34.0 t ADT: 17,600

USH 53 N

Good

Over: DUNCAN CREEK

1.4M N JCT CTH B TO E, Chippewa, WI

Built 1971 Load: 34.0 t ADT: 17,600

STH 124

Good

Over: ONEIL CREEK

0.7M N JCT CTH V, Chippewa, WI

Built 1987 Load: 34.0 t ADT: 2,900

LRD 270TH STREET

Good

Over: CHAP CREEK

0.2 M N 120TH AVENUE, Chippewa, WI

Built 1992 Load: 34.0 t ADT: 175

Showing 9,651-9,700 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.