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

CTH U

Good

Over: BRUNNER VALLEY CREEK

0.1M N JCT CTH UU, Pierce, WI

Built 1976 Load: 50.2 t ADT: 407

LRD S WASSON LA

Good

Over: S FK KINNICKINNIC RIVER

0.5M N JCT CEMETERY RD, Pierce, WI

Built 2008 Load: 50.2 t ADT: 2,884

STH 58

Good

Over: WILLOW CREEK

1.1M N JCT STH 154, Richland, WI

Built 2002 Load: 50.2 t ADT: 1,800

STH 136-PINE ST EB

Good

Over: BARABOO RIVER

0.3M E JCT STH 33 (B), Sauk, WI

Built 2000 Load: 50.2 t ADT: 4,750

LRD OUR TOWN RD

Good

Over: ONION RIVER

0.1M E JCT STH 32, Sheboygan, WI

Built 2007 Load: 50.2 t ADT: 911

USH 63N

Good

Over: TRIB TO RUSH R

0.6M N OF CTH YY, St. Croix, WI

Built 2009 Load: 50.2 t ADT: 3,000

LRD CHIMNEY ROCK R

Good

Over: BUFFALO RIVER

0.1M E JCT STH 93, Trempealeau, WI

Built 1995 Load: 50.2 t ADT: 165

STH 47

Good

Over: MISHONAGON CREEK

AT MISHONAGON CREEK, Vilas, WI

Built 2008 Load: 50.2 t ADT: 4,800

LRD RIVER RD

Good

Over: WAUPACA RIVER

0.1M N JCT USH 10, Waupaca, WI

Built 2006 Load: 50.2 t ADT: 231

LRD N 2ND AVE

Good

Over: RUDOLPH CREEK

0.6M N OF HWY 66, Wood, WI

Built 1979 Load: 50.2 t ADT: 45

FR 2174

Good

Over: PINE RIVER

5.9 MI W OF JCT STH 55, Forest, WI

Built 1984 Load: 50.5 t ADT: 50

CTH E

Good

Over: COUDERAY RIVER

0.6M W JCT CTH N, Sawyer, WI

Built 2021 Load: 50.5 t ADT: 840

LRD SOUTH WHITNALL

Good

Over: UNION PACIFIC RAILROAD

0.2 M NORTH OF E.HOLT AV, Milwaukee, WI

Built 2015 Load: 50.9 t ADT: 1,400

CTH JG

Good

Over: UNNAMED WATERWAY

4.670 MILES NORTH OF CTH, Dane, WI

Built 2023 Load: 51.2 t ADT: 590

CTH G

Good

Over: SHAW BROOK

0.6M N JCT CTH I, Dodge, WI

Built 2011 Load: 51.2 t ADT: 1,500

RANGE 2 SERVICE TR

Good

Over: TRIB. TO LA CROSSE RIVER

MIL GRID 833786, Monroe, WI

Built 2010 Load: 51.2 t ADT: 10

LRD 200TH STREET

Good

Over: TRADE RIVER

0.4M N JCT CTH B, Polk, WI

Built 2012 Load: 51.2 t ADT: 192

STH 93

Good

Over: ADAMS CREEK

0.5M N JCT CTH U, Trempealeau, WI

Built 2016 Load: 51.5 t ADT: 5,000

CTH K

Good

Over: N BR LITTLE BEAR CREEK

0.4M W JCT CTH F, Buffalo, WI

Built 1989 Load: 51.8 t ADT: 227

CTH D

Good

Over: CHURCH VALLEY CREEK

0.2M W JCT CTH F, Buffalo, WI

Built 1991 Load: 51.8 t ADT: 303

STH 77

Good

Over: WEBB LAKE NARROWS

0.1 M E JCT CTH H, Burnett, WI

Built 2011 Load: 51.8 t ADT: 1,100

CTH B / ADAMS ST

Good

Over: KOSHKONONG CREEK

2.3M E JCT STH 73, Dane, WI

Built 2009 Load: 51.8 t ADT: 1,104

CTH P

Good

Over: BLACK EARTH CREEK

.1MI S JCT USH 14, Dane, WI

Built 2014 Load: 51.8 t ADT: 5,400

LRD 290TH ST

Good

Over: BR KNIGHTS CREEK

0.3M N JCT STH 72, Dunn, WI

Built 1996 Load: 51.8 t ADT: 101

LRD JENE ROAD

Good

Over: WEST CREEK

1.6M W STH 37, Eau Claire, WI

Built 1993 Load: 51.8 t ADT: 205

CTH WH

Good

Over: TAYCHEEDAH CREEK

2.4M W JCT USH 151, Fond du Lac, WI

Built 2010 Load: 51.8 t ADT: 6,900

LRD GOODMAN PARK R

Good

Over: PESHTIGO RIVER

6.8M N JCT CTH C, Forest, WI

Built 2007 Load: 51.8 t ADT: 111

LRD HONEY CREEK RD

Good

Over: HONEY CREEK

0.2M S JCT CTH B, Green, WI

Built 1982 Load: 51.8 t ADT: 87

CTH T

Good

Over: SUGAR RIVER

1.7M S JCT STH 81, Green, WI

Built 2008 Load: 51.8 t ADT: 1,200

STH 64

Good

Over: LITTLE PESTIGO RIVER

2.3M E JCT CTH P, Marinette, WI

Built 2008 Load: 51.8 t ADT: 3,000

IH 794 WB-LAKE FRE

Good

Over: DOCK RR

1.2 MI W JCT CARFERRY DR, Milwaukee, WI

Built 1974 Load: 51.8 t ADT: 25,200

LRD E. HOWARD AVE.

Good

Over: UPRR

1.43M E JCT HOWARD & STH, Milwaukee, WI

Built 1996 Load: 51.8 t ADT: 11,400

LRD S 116TH ST

Good

Over: ROOT RIVER

0.3M S JCT CTH NN, Milwaukee, WI

Built 1995 Load: 51.8 t ADT: 2,808

LRD 29TH STREET

Good

Over: UNION PACIFIC RR

1.0M STH59, Milwaukee, WI

Built 2008 Load: 51.8 t ADT: 1,626

RANGE 2 SERVICE TR

Good

Over: SUUKJAK SEP CREEK

MIL GRID 833786, Monroe, WI

Built 2010 Load: 51.8 t ADT: 10

LRD MIDWAY RD

Good

Over: LITTLE RIVER

1.3M S JCT CTH M, Oconto, WI

Built 2002 Load: 51.8 t ADT: 175

LRD RIVER RD

Good

Over: WISCONSIN RIVER 50

2.8M E JCT STH 47, Oneida, WI

Built 1997 Load: 51.8 t ADT: 429

CTH W

Good

Over: TRIMBELLE RIVER

0.2M S JCT STH 29, Pierce, WI

Built 1989 Load: 51.8 t ADT: 189

USH 63

Good

Over: RUSH RIVER

1.2M N JCT CTH J, Pierce, WI

Built 2013 Load: 51.8 t ADT: 2,800

LRD EMERALD GROVE

Good

Over: BR TURTLE CREEK

3.0M S JCT USH 14, Rock, WI

Built 1997 Load: 51.8 t ADT: 88

LRD 150TH ST

Good

Over: KINNICKINNIC RIVER

0.2M N JCT USH 12, St. Croix, WI

Built 2008 Load: 51.8 t ADT: 260

CTH P

Good

Over: WARNER CREEK

3.3M E JCT STH 131, Vernon, WI

Built 2006 Load: 51.8 t ADT: 261

CTH ES (FOX ST)

Good

Over: CN RR

0.2M N JCT STH 83, Waukesha, WI

Built 1995 Load: 51.8 t ADT: 2,300

STH 182

Good

Over: NORTH FORK FLAMBEAU RIVE

0.3M E JCT STH 13, Price, WI

Built 2017 Load: 52.2 t ADT: 4,500

LRD AARBACK ROAD

Good

Over: KOSHKONONG CREEK

1.6 MILE EAST OF THE JUNC, Dane, WI

Built 2022 Load: 52.8 t ADT: 100

LRD WEST CALUMET R

Good

Over: LITTLE MENOMONEE RIVER

1.1 M W JCT STH 181, Milwaukee, WI

Built 2022 Load: 52.8 t ADT: 1,300

LRD HOLMGREN WAY

Good

Over: DUTCHMANS CREEK

0.1M N JCT CTH HH, Brown, WI

Built 1998 Load: 53.5 t ADT: 12,700

CTH C

Good

Over: SWINNS VALLEY CREEK

3.6M N JCT STH 95, Buffalo, WI

Built 1989 Load: 53.5 t ADT: 824

CTH K

Good

Over: HAY MEADOW CREEK

0.3M N JCT STH 73, Clark, WI

Built 2012 Load: 53.5 t ADT: 346

LRD ROWLEY RD (DEA

Good

Over: BLUE MOUNDS CREEK

0.1M E JCT CTH Z, Dane, WI

Built 1996 Load: 53.5 t ADT: 15

Showing 13,801-13,850 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.