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 J

Good

Over: TAMARACK CREEK

0.5M N JCT CTH D, Buffalo, WI

Built 2005 Load: 40.5 t ADT: 136

LRD ROSE VALLEY RO

Good

Over: ROSE VALLEY CREEK

1.6M E OF JCT CTH N, Buffalo, WI

Built 2003 Load: 40.5 t ADT: 52

STH 25

Good

Over: MISSISSIPPI RIVER SLOUGH

0.4M N MINN STATE LINE, Buffalo, WI

Built 2009 Load: 40.5 t ADT: 4,500

STH 25

Good

Over: MISSISSIPPI RIVER SLOUGH

1.1M N MINN STATE LINE, Buffalo, WI

Built 2010 Load: 40.5 t ADT: 4,500

LRD GONTY RD

Good

Over: ROSSMAN CREEK

0.7M W JCT CTH Y, Buffalo, WI

Built 2009 Load: 40.5 t ADT: 103

STH 48-STH 87

Good

Over: CANUTE CREEK

3.6M E JCT STH 70, Burnett, WI

Built 2002 Load: 40.5 t ADT: 2,100

CTH X

Good

Over: TROUT CREEK

4.3 M E CTH F, Chippewa, WI

Built 2001 Load: 40.5 t ADT: 7,175

LRD 125TH STREET

Good

Over: MCCANN CREEK

0.3 M N STH 64, Chippewa, WI

Built 1994 Load: 40.5 t ADT: 75

LRD 118TH AVENUE

Good

Over: DUNCAN CREEK

0.2 M NE CTH Q, Chippewa, WI

Built 1997 Load: 40.5 t ADT: 330

CTH V

Good

Over: HAY CREEK

0.2 M E CTH D, Chippewa, WI

Built 1997 Load: 40.5 t ADT: 410

LRD MAIN STREET

Good

Over: DRAINAGE DITCH

1.0 M N CTH SS, Chippewa, WI

Built 1999 Load: 40.5 t ADT: 5,420

LRD 178TH AV(NORTH

Good

Over: TROUT CREEK

0.1 M E 10TH AVE(AUBURN R, Chippewa, WI

Built 1998 Load: 40.5 t ADT: 110

LRD 10TH ST.(AUBUR

Good

Over: TROUT CREEK

0.1 M N 178TH AV(NORTHSID, Chippewa, WI

Built 1997 Load: 40.5 t ADT: 115

STH 64

Good

Over: MCCANN CREEK

1.0M E JCT STH 40 TO N, Chippewa, WI

Built 2009 Load: 40.5 t ADT: 3,600

LRD CARDINAL AVE

Good

Over: BR NELSON CREEK

3.2M S JCT CTH N, Clark, WI

Built 1994 Load: 40.5 t ADT: 105

LRD CARDINAL AVE

Good

Over: N BR ONEILL CREEK

1.8M N JCT USH 10, Clark, WI

Built 1991 Load: 40.5 t ADT: 56

LRD MERIDIAN RD

Good

Over: ROCK CREEK

0.7M S JCT STH 98, Clark, WI

Built 1992 Load: 40.5 t ADT: 34

LRD SAND HILL AVE

Good

Over: S. FK. POPPLE RIVER

0.7M S JCT CTH Q, Clark, WI

Built 1997 Load: 40.5 t ADT: 58

LRD FAIRGROUND AVE

Good

Over: ROCK CREEK

3.6M S JCT STH 95, Clark, WI

Built 1998 Load: 40.5 t ADT: 15

STH 29 WB-STH 73 N

Good

Over: S FK EAU CLAIRE RIVER

2.8M W JCT CTH O, Clark, WI

Built 1995 Load: 40.5 t ADT: 5,700

STH 29 EB-STH 73 S

Good

Over: S FK EAU CLAIRE RIVER

4.3M E JCT STH 73 TO N, Clark, WI

Built 1995 Load: 40.5 t ADT: 5,700

STH 29 WB

Good

Over: N. FRK POPPLE RIVER

1.2M E JCT CTH X, Clark, WI

Built 1997 Load: 40.5 t ADT: 6,350

STH 29 W

Good

Over: DILL CREEK

2.6M W JCT STH 13, Clark, WI

Built 1997 Load: 40.5 t ADT: 6,600

LRD OWEN AVE

Good

Over: ROCK CREEK

2.5M N JCT STH 98, Clark, WI

Built 2019 Load: 40.5 t ADT: 100

LRD EDDY ROAD

Good

Over: E. FK. POPPLE RIVER

1.7M E JCT CTH E, Clark, WI

Built 2008 Load: 40.5 t ADT: 104

CTH Z

Good

Over: N BR CRAWFISH RIVER

0.8M W JCT CTH CD, Columbia, WI

Built 1966 Load: 40.5 t ADT: 99

STH 60

Good

Over: CLEAR CREEK

4.9M E JCT STH 131, Crawford, WI

Built 1983 Load: 40.5 t ADT: 2,100

LRD MAYBEE RD (DEA

Good

Over: BR TROUT CREEK

1.8M E JCT USH 61, Crawford, WI

Built 2008 Load: 40.5 t ADT: 100

LRD HOUND DOG LANE

Good

Over: RICHLAND CREEK

0.1M W JCT BYERS RD, Crawford, WI

Built 1991 Load: 40.5 t ADT: 100

LRD BROWN RIDGE RD

Good

Over: DRY RUN

3.5M S JCT CTH W, Crawford, WI

Built 1991 Load: 40.5 t ADT: 112

CTH C

Good

Over: JOHNSON VALLEY CREEK

0.8M W JCT STH 131, Crawford, WI

Built 2017 Load: 40.5 t ADT: 360

LRD PLUM CREEK RD

Good

Over: TRIB TO PLUM CREEK

1.2 MI E. OF STH 27, Crawford, WI

Built 2010 Load: 40.5 t ADT: 102

STH 92

Good

Over: MT VERNON CREEK

2.2M E JCT CTH U, Dane, WI

Built 1998 Load: 40.5 t ADT: 2,200

STH 30 EB

Good

Over: SOO LINE RR

0.8M E JCT USH 151, Dane, WI

Built 1996 Load: 40.5 t ADT: 18,650

STH 30 WB

Good

Over: SOO LINE RR

0.6M W JCT USH 51 TO N, Dane, WI

Built 1996 Load: 40.5 t ADT: 18,650

LRD SPOONER ST

Good

Over: SW COMMUTER BIKE TRAIL

0.2M N OF JCT MONROE ST, Dane, WI

Built 2001 Load: 40.5 t ADT: 2,750

USH 12 WB

Good

Over: ROXBURY CR

0.1M N JCT CTH Y, Dane, WI

Built 2004 Load: 40.5 t ADT: 8,200

LRD AIRPORT ROAD W

Good

Over: PHEASANT BRANCH CR.

1.3M W. JCT USH 12, Dane, WI

Built 2003 Load: 40.5 t ADT: 4,750

LRD SPRING ROSE RD

Good

Over: BR SUGAR R

AT BR. SUGAR RIVER, Dane, WI

Built 2003 Load: 40.5 t ADT: 106

STH 19

Good

Over: TOKEN CREEK

1.0M E JCT USH 51 TO N, Dane, WI

Built 2013 Load: 40.5 t ADT: 14,300

LRD FERMITE DRIVE

Good

Over: PENITO CREEK

1070 FEET WEST OF I39, Dane, WI

Built 2010 Load: 40.5 t ADT: 3,300

CTH PB

Good

Over: SUGAR RIVER

0.4M N JCT STH 69, Dane, WI

Built 2018 Load: 40.5 t ADT: 5,400

IH 39 NB / IH 90 W

Good

Over: DOOR CREEK

2.3M W JCT CTH N TO E, Dane, WI

Built 2018 Load: 40.5 t ADT: 23,600

CTH KP

Good

Over: BLACK EARTH CREEK

0.1 MI S JCT USH 14, Dane, WI

Built 2023 Load: 40.5 t ADT: 1,309

LRD NINABUCK RD

Good

Over: CRAWFISH RIVER

0.6M W JCT CTH TT, Dodge, WI

Built 1996 Load: 40.5 t ADT: 154

LRD COOPER ST

Good

Over: BEAVER DAM RIVER

0.3M W JCT CTH G, Dodge, WI

Built 2017 Load: 40.5 t ADT: 2,200

LRD MAPLE/OREGON S

Good

Over: LAND

1.0M N JCT STH 42, Door, WI

Built 2008 Load: 40.5 t ADT: 6,800

LRD MAPLE/OREGON S

Good

Over: LAND

1.0M N JCT STH 42, Door, WI

Built 2008 Load: 40.5 t ADT: 6,800

STH 35

Good

Over: BN RR

0.5M N JCT CTH C, Douglas, WI

Built 1984 Load: 40.5 t ADT: 6,000

LRD KINGSDALE RD

Good

Over: UPPER TAMARACK RIVER

1.7M W JCT STH 35, Douglas, WI

Built 1997 Load: 40.5 t ADT: 75

Showing 12,501-12,550 of 14,851 bridges

Related

All states → | National rankings → | Understanding conditions → | SD bridges explained →
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.