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

USH 12 EB

Good

Over: SKILLET CREEK

4.5 M E JCT STH 33, Sauk, WI

Built 2016 Load: 36.9 t ADT: 7,700

USH 12 WB

Good

Over: SKILLET CREEK

0.7 M W JCT STH 159, Sauk, WI

Built 2016 Load: 36.9 t ADT: 7,700

LRD CTH CH

Good

Over: TRIBUTARY TO NARROWS CR

.5M S JCT STH 154, Sauk, WI

Built 2014 Load: 36.9 t ADT: 740

LRD WOODLAND RD

Good

Over: MULLET RIVER

0.4M E JCT CTH C, Sheboygan, WI

Built 2019 Load: 36.9 t ADT: 770

USH 53

Good

Over: BR N FK BEAVER CREEK

2.5M N JCT CTH D, Trempealeau, WI

Built 2019 Load: 36.9 t ADT: 4,750

LRD ESOFEA CO PARK

Good

Over: N FORK BAD AXE RIVER

0.05M W JCT PARK RD, Vernon, WI

Built 2010 Load: 36.9 t ADT: 100

LRD RIVER RD (DEAD

Good

Over: BR W FK KICKAPOO RIVER

0.4M S JCT CTH S, Vernon, WI

Built 2019 Load: 36.9 t ADT: 20

STH 120

Good

Over: COMO CREEK

1.0 MI N JCT USH 12, Walworth, WI

Built 2018 Load: 36.9 t ADT: 7,900

LRD MACKEY RD

Good

Over: POTATO CREEK

0.6 MI S JCT CTH E, Washburn, WI

Built 2021 Load: 36.9 t ADT: 420

STH 83 NB

Good

Over: SPRING BROOK

1.2 MI S JCT STH 59, Waukesha, WI

Built 2011 Load: 36.9 t ADT: 3,200

LRD MUD CREEK RD.

Good

Over: ARROWHEAD RIVER

AT ARROWHEAD RIVER, Winnebago, WI

Built 2012 Load: 36.9 t ADT: 101

CTH V

Good

Over: ROCKY RUN FLOW

4.2M N STH 73, Wood, WI

Built 2014 Load: 36.9 t ADT: 450

CTH B

Good

Over: BR YELLOW RIVER

0.1M S JCT USH 10, Wood, WI

Built 2016 Load: 36.9 t ADT: 550

CTH V

Good

Over: ROCKY RUN FLOW

3.8M N JCT STH 73, Wood, WI

Built 2020 Load: 36.9 t ADT: 350

LRD 15TH AVE

Good

Over: WHITE CREEK

0.1M N JCT CTH H, Adams, WI

Built 1988 Load: 37.3 t ADT: 77

LRD 6TH AVE

Good

Over: BUCKNER CREEK

2.3M N JCT CTH C, Adams, WI

Built 1989 Load: 37.3 t ADT: 64

LRD ELK AVE

Good

Over: UNION PACIFIC RAILROAD

2.4M E JCT CTH B, Adams, WI

Built 1997 Load: 37.3 t ADT: 152

LRD RIVER ROAD

Good

Over: COLDWATER CANYON

2.0M S JCT STH 13, Adams, WI

Built 1997 Load: 37.3 t ADT: 1,300

CTH C

Good

Over: BIG ROCHE A CRI CREEK

2.7M E JCT STH 13, Adams, WI

Built 1999 Load: 37.3 t ADT: 860

LRD 11TH AVE

Good

Over: BINGHAM CREEK

1.4M S JCT STH 21, Adams, WI

Built 2001 Load: 37.3 t ADT: 182

STH 21

Good

Over: CARTER CREEK

0.6M E JCT STH 13, Adams, WI

Built 2013 Load: 37.3 t ADT: 3,800

LRD SOSIN ROAD

Good

Over: BRUNSWEILER RIVER

1.0M E JCT STH 13, Ashland, WI

Built 1990 Load: 37.3 t ADT: 86

LRD CAYUGA ROAD

Good

Over: BAD RIVER

0.2M W JCT STH 13, Ashland, WI

Built 1990 Load: 37.3 t ADT: 56

LRD 1ST AVE

Good

Over: DEVILS CREEK

0.2M S JCT STH 77, Ashland, WI

Built 1993 Load: 37.3 t ADT: 236

LRD THOMAS ST

Good

Over: BAD RIVER

0.2M S JCT CTH GG, Ashland, WI

Built 1993 Load: 37.3 t ADT: 352

STH 13

Good

Over: WHITE RIVER

5.1M N JCT STH 112 (C), Ashland, WI

Built 2003 Load: 37.3 t ADT: 2,100

STH 25

Good

Over: UPPER PINE CREEK

4.2M N JCT CTH A TO E, Barron, WI

Built 1976 Load: 37.3 t ADT: 2,500

CTH F

Good

Over: HAY RIVER

0.9M N JCT CTH A TO W, Barron, WI

Built 1979 Load: 37.3 t ADT: 926

CTH P

Good

Over: LIGHTNING CREEK

0.8M N JCT USH 8, Barron, WI

Built 1986 Load: 37.3 t ADT: 1,635

LRD 12 3/4 AVE

Good

Over: POKEGAMA CREEK

0.3M W JCT CTH M, Barron, WI

Built 1997 Load: 37.3 t ADT: 43

LRD 16TH ST

Good

Over: UPPER PINE CREEK

0.5M S JCT CTH U, Barron, WI

Built 2000 Load: 37.3 t ADT: 53

LRD 11TH AVE

Good

Over: FOUR MILE CREEK

0.7M W JCT STH 25, Barron, WI

Built 2002 Load: 37.3 t ADT: 85

LRD 18TH AVE

Good

Over: YELLOW RIVER

1.6M E JCT CTH T, Barron, WI

Built 2010 Load: 37.3 t ADT: 412

LRD 17TH AVE

Good

Over: HAY RIVER

1.2M E JCT CTH P, Barron, WI

Built 2020 Load: 37.3 t ADT: 49

LRD 4TH STREET

Good

Over: SILVER CREEK

3.9M N JCT CTH A, Barron, WI

Built 1984 Load: 37.3 t ADT: 47

STH 13

Good

Over: ONION RIVER

6.8M N JCT CTH C, Bayfield, WI

Built 1977 Load: 37.3 t ADT: 3,900

USH 63

Good

Over: WHITE RIVER

1.1M N JCT CTH E TO E, Bayfield, WI

Built 1987 Load: 37.3 t ADT: 2,000

LRD FLAG RD

Good

Over: FLAG RIVER

2.2M E JCT STH 13, Bayfield, WI

Built 1995 Load: 37.3 t ADT: 55

STH 13

Good

Over: BARK RIVER

3.7M N JCT CTH C TO S, Bayfield, WI

Built 2000 Load: 37.3 t ADT: 1,100

CTH B

Good

Over: MUSKEG CR

3.3 M W OF JCT CTH A, Bayfield, WI

Built 2005 Load: 37.3 t ADT: 341

STH 96

Good

Over: BRANCH RIVER

2.3M E JCT CTH W, Brown, WI

Built 1983 Load: 37.3 t ADT: 1,500

USH 141-STH 29-MAI

Good

Over: BAIRD CREEK

5.5M N JCT STH 29 TO E, Brown, WI

Built 1998 Load: 37.3 t ADT: 22,037

LRD CTH "EA" / HUR

Good

Over: MAHON CREEK

0.5M S. JCT STH 54/57, Brown, WI

Built 2005 Load: 37.3 t ADT: 6,200

LRD ST. PAT'S ROAD

Good

Over: SUAMICO RIVER

1.5MI WEST AND SOUTH OF R, Brown, WI

Built 2016 Load: 37.3 t ADT: 393

LRD COUNTY LINE RO

Good

Over: GOLDEN CREEK

0.8M S JCT CTH ZZ, Brown, WI

Built 2020 Load: 37.3 t ADT: 160

CTH HS

Good

Over: SUAMICO RIVER

0.1M S JCT CTH B, Brown, WI

Built 2019 Load: 37.3 t ADT: 6,100

LRD TAYLOR STREET

Good

Over: BEAVER DAM CREEK

.2 MILES S OF JUNCTION WI, Brown, WI

Built 2022 Load: 37.3 t ADT: 5,735

STH 88

Good

Over: SCREECH OWL CREEK

0.4M N JCT CTH O, Buffalo, WI

Built 1953 Load: 37.3 t ADT: 600

LRD BUEHLER VALLEY

Good

Over: BR TREMPEALEAU RIVER

2.1M E JCT STH 95, Buffalo, WI

Built 1987 Load: 37.3 t ADT: 34

LRD LITTLE BEAR CR

Good

Over: LITTLE BEAR CREEK

0.4M S JCT CTH K, Buffalo, WI

Built 1990 Load: 37.3 t ADT: 22

Showing 11,151-11,200 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.