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 35-STATE RD

Good

Over: BAY CITY CREEK

0.4M N JCT CTH EE, Pierce, WI

Built 1992 Load: 32.4 t ADT: 3,600

STH 65

Good

Over: BR S FK KINNICKINNIC R

1.0M N JCT CTH O, Pierce, WI

Built 2000 Load: 32.4 t ADT: 5,800

CTH EE

Good

Over: BR ISABELLE CREEK

2.1M W JCT CTH D, Pierce, WI

Built 1994 Load: 32.4 t ADT: 267

STH 35

Good

Over: BR COULEE CREEK

2.3M N JCT CTH QQ TO N, Pierce, WI

Built 1992 Load: 32.4 t ADT: 2,600

CTH EE

Good

Over: BR ISABELLE CREEK

1.9M W JCT CTH D, Pierce, WI

Built 1994 Load: 32.4 t ADT: 302

LRD 870TH AVE

Good

Over: BR RUSH RIVER

0.1M W JCT CTH Y, Pierce, WI

Built 1994 Load: 32.4 t ADT: 397

STH 29 EASTBOUND

Good

Over: BURKHART CR

AT BURKHART CREEK, Pierce, WI

Built 2004 Load: 32.4 t ADT: 3,400

LRD 510TH ST

Good

Over: CADY CREEK

0.1M E OF 20TH ST, Pierce, WI

Built 1997 Load: 32.4 t ADT: 397

CTH K

Good

Over: LITTLE TRIMBELLE CREEK

0.6M W JCT USH 63, Pierce, WI

Built 2004 Load: 32.4 t ADT: 504

LRD 650TH AVE

Good

Over: CAVE CREEK

0.7M E JCT CTH BB, Pierce, WI

Built 2005 Load: 32.4 t ADT: 116

LRD 570TH AVENUE

Good

Over: PLUM CREEK

0.2M EAST OF 210TH ST, Pierce, WI

Built 2003 Load: 32.4 t ADT: 214

CTH J

Good

Over: GOOSE CR

0.1M S JCT STH 65, Pierce, WI

Built 2006 Load: 32.4 t ADT: 598

CTH E

Good

Over: GREENWOOD VALLEY CREEK

0.4M S JCT STH 29, Pierce, WI

Built 2008 Load: 32.4 t ADT: 1,337

LRD GREEN WOOD VAL

Good

Over: ROCKY BRANCH CREEK

1.9M N CTHQQ, Pierce, WI

Built 2006 Load: 32.4 t ADT: 146

CTH C

Good

Over: BAY CITY CR

1.2 M N OF JCT STH 35, Pierce, WI

Built 2004 Load: 32.4 t ADT: 731

STH 29

Good

Over: UNNAMED TRIBUTARY

0.25MI NCTH FF, Pierce, WI

Built 2021 Load: 32.4 t ADT: 5,800

LRD 570TH AVE

Good

Over: BR BIG R (DRY RUN)

0.1 MILE E OF JCT OF CTH, Pierce, WI

Built 2004 Load: 32.4 t ADT: 53

LRD 1000TH ST

Good

Over: BR BIG R (DRY RUN)

0.5 M N OF JCT 570TH AVE, Pierce, WI

Built 2005 Load: 32.4 t ADT: 420

CTH QQ

Good

Over: BR KINNICKINNIC RIVER

0.2M N JCT CTH MM, Pierce, WI

Built 1983 Load: 32.4 t ADT: 116

LRD 855TH AVE (DEA

Good

Over: TRIMBELLE RIVER

0.1M W JCT CTH W, Pierce, WI

Built 1989 Load: 32.4 t ADT: 5

LRD EAST RIVER RD-

Good

Over: BR RUSH RIVER

0.4M S JCT CTH A, Pierce, WI

Built 1991 Load: 32.4 t ADT: 225

LRD 820TH STREET

Good

Over: BR TRIMBELLE RIVER

0.7M W JCT STH 65, Pierce, WI

Built 1992 Load: 32.4 t ADT: 233

STH 35

Good

Over: OSCEOLA CR

3.2M N CTH CC, Polk, WI

Built 2006 Load: 32.4 t ADT: 9,500

CTH UU ELM ROAD

Good

Over: DITCH NO 6

1.3M N JCT CTH D, Portage, WI

Built 1985 Load: 32.4 t ADT: 176

USH 10 EB

Good

Over: TOMORROW RIVER

2.0 MI EAST CTH A, Portage, WI

Built 2004 Load: 32.4 t ADT: 14,600

USH 10 WB

Good

Over: TOMORROW RIVER

1.7M W JCT CTH T TO S, Portage, WI

Built 2004 Load: 32.4 t ADT: 7,300

LRD MERRYLAND DRIV

Good

Over: TOMORROW RIVER

1.6 MILES EAST OF STH 66, Portage, WI

Built 2017 Load: 32.4 t ADT: 215

IH-39

Good

Over: SOUTH BRANCH TENMILE CRE

0.23M N CTH D, Portage, WI

Built 2017 Load: 32.4 t ADT: 13,000

LRD BROWN THRUSH R

Good

Over: TRIB TO MILL CREEK

0.25M W CTH G, Portage, WI

Built 2013 Load: 32.4 t ADT: 106

LRD FIRST STREET

Good

Over: TOMORROW RIVER

0.1M E JCT STH 161, Portage, WI

Built 1988 Load: 32.4 t ADT: 900

USH 8

Good

Over: SOMO CREEK

2.8M E JCT CTH D TO S, Price, WI

Built 1981 Load: 32.4 t ADT: 2,300

USH 8

Good

Over: LITTLE SOMO CREEK

2.4M E JCT CTH D TO S, Price, WI

Built 1983 Load: 32.4 t ADT: 2,300

CTH D

Good

Over: KNOX CREEK

TOWN OF KNOX 2.3 M N HYW, Price, WI

Built 2001 Load: 32.4 t ADT: 182

STH 13 NB

Good

Over: HAY CREEK

3.9M N JCT USH 8, Price, WI

Built 2003 Load: 32.4 t ADT: 3,300

USH 8

Good

Over: S FORK MAIN CREEK

2.0M W JCT J, Price, WI

Built 2015 Load: 32.4 t ADT: 1,300

USH 8

Good

Over: MORGAN CREEK

1.05 M W OF JCT CTH J NO, Price, WI

Built 2015 Load: 32.4 t ADT: 1,400

STH 13

Good

Over: BR N FK JUMP RIVER

8.1M N JCT USH 8, Price, WI

Built 2018 Load: 32.4 t ADT: 3,300

LRD 90TH STREET CU

Good

Over: WAXDALE CREEK

0.5M N JCT STH 11, Racine, WI

Built 2001 Load: 32.4 t ADT: 5,100

STH S PINE STREET

Good

Over: SPRING BROOK

4.3M N JCT CTH JB T0 E, Racine, WI

Built 1996 Load: 32.4 t ADT: 7,300

STH 38

Good

Over: HUSHER CREEK

3.2 MI S JCT STH 100, Racine, WI

Built 2010 Load: 32.4 t ADT: 9,000

STH 38

Good

Over: TRIB TO HUSHER CREEK

0.3 MI E JCT CTH H, Racine, WI

Built 2010 Load: 32.4 t ADT: 8,100

LRD OAKES RD

Good

Over: BR PIKE RIVER

0.3M S JCT STH20, Racine, WI

Built 2001 Load: 32.4 t ADT: 9,500

LRD OLD SPRING STR

Good

Over: BR PIKE RIVER

0.37 MI E JCT STUART RD, Racine, WI

Built 2004 Load: 32.4 t ADT: 210

LRD CAMPUS DR

Good

Over: WIND POINT CREEK

0.3M E JCT CTH G, Racine, WI

Built 1970 Load: 32.4 t ADT: 58

CTH O

Good

Over: ASH CREEK

0.2M N JCT CTH OO, Richland, WI

Built 1956 Load: 32.4 t ADT: 850

LRD TROUT DR

Good

Over: BR KNAPP CREEK

0.1M W JCT STH 171, Richland, WI

Built 1986 Load: 32.4 t ADT: 22

LRD SPRY HILL DR

Good

Over: FANCY CREEK

0.2M N JCT STH 56, Richland, WI

Built 1989 Load: 32.4 t ADT: 28

CTH O

Good

Over: BR SPRING CREEK

0.3M S JCT USH 14, Richland, WI

Built 1991 Load: 32.4 t ADT: 1,200

STH 80

Good

Over: MELANCTHON CREEK

1.2M N JCT CTH CC TO E, Richland, WI

Built 1994 Load: 32.4 t ADT: 1,300

STH 80

Good

Over: MELANCTHON CREEK

3.0M N JCT CTH CC TO E, Richland, WI

Built 1994 Load: 32.4 t ADT: 1,300

Showing 9,251-9,300 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.