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

LRD STRICKER RD (D

Good

Over: TYLER FORKS RIVER

0.7M N JCT STH 169, Ashland, WI

Built 1991 Load: 38.9 t ADT: 100

LRD MACKENBERG-LEN

Good

Over: MAGEE CREEK

0.6M W JCT CTH N, Ashland, WI

Built 1997 Load: 38.9 t ADT: 58

STH 13-STH 77-MAIN

Good

Over: BAD RIVER

3.1M N JCT CTH MM, Ashland, WI

Built 2023 Load: 38.9 t ADT: 3,000

LRD N 19TH ST

Good

Over: RED CEDAR RIVER

2.8M N JCT CTH W, Barron, WI

Built 1988 Load: 38.9 t ADT: 1,717

LRD 19TH ST

Good

Over: RED CEDAR RIVER

1.2M S JCT CTH W, Barron, WI

Built 1991 Load: 38.9 t ADT: 461

LRD 13TH ST

Good

Over: QUADERERS CREEK

2.8M N JCT CTH D, Barron, WI

Built 1998 Load: 38.9 t ADT: 109

LRD 3 1/2 AVE

Good

Over: S FK HAY RIVER

0.5M W JCT CTH K, Barron, WI

Built 1997 Load: 38.9 t ADT: 23

LRD 20 1/2 AVE

Good

Over: YELLOW RIVER

2.4M W JCT STH 25, Barron, WI

Built 2002 Load: 38.9 t ADT: 107

LRD 8TH AVE

Good

Over: DORITS CREEK

2.5M E JCT CTH F, Barron, WI

Built 2001 Load: 38.9 t ADT: 43

CTH A DALLAS ST

Good

Over: UPPER PINE CREEK

0.7M W JCT CTH U, Barron, WI

Built 2004 Load: 38.9 t ADT: 606

LRD TOWN LINE RD

Good

Over: WHITE RIVER

3.6M S JCT CTH E, Bayfield, WI

Built 1992 Load: 38.9 t ADT: 29

STH 13

Good

Over: REEFER CREEK

5.9M N JCT CTH A, Bayfield, WI

Built 2000 Load: 38.9 t ADT: 630

STH 13

Good

Over: IRON RIVER

4.8M N JCT CTH A, Bayfield, WI

Built 1998 Load: 38.9 t ADT: 630

LRD WRIGHTSTOWN RD

Good

Over: EAST RIVER

0.4M W JCT STH 57, Brown, WI

Built 1989 Load: 38.9 t ADT: 102

LRD KLONDIKE RD

Good

Over: SORENSONS CREEK

0.5M W JCT STH 29, Brown, WI

Built 1994 Load: 38.9 t ADT: 421

CTH T

Good

Over: NESHOTA RIVER

2.8M S JCT STH 29, Brown, WI

Built 1993 Load: 38.9 t ADT: 1,350

LRD KUNESH NORTH D

Good

Over: BR SUAMICO RIVER

1.1M N JCT CTH U, Brown, WI

Built 1994 Load: 38.9 t ADT: 127

LRD GLENMORE RD

Good

Over: SORENSONS CREEK

1.3M N JCT CTH MM, Brown, WI

Built 1996 Load: 38.9 t ADT: 205

CTH U

Good

Over: SUAMICO RIVER

1.0M N JCT STH 29, Brown, WI

Built 2002 Load: 38.9 t ADT: 670

LRD ROSEN ST

Good

Over: APPLE CREEK

1.1M N JCT CTH D, Brown, WI

Built 2002 Load: 38.9 t ADT: 117

LRD N. WASHINGTON

Good

Over: PESSO CREEK

0.1M W JCT STH 37, Buffalo, WI

Built 1982 Load: 38.9 t ADT: 587

LRD BRANDHORST RD

Good

Over: BR TREMPEALEAU RIVER

0.1M S JCT CTH P, Buffalo, WI

Built 1987 Load: 38.9 t ADT: 91

LRD FINIAN ROAD (D

Good

Over: WAUMANDEE CREEK

0.2M E JCT CTH E, Buffalo, WI

Built 1989 Load: 38.9 t ADT: 20

CTH J

Good

Over: TAMARACK CREEK

0.1M S JCT CTH D TO E, Buffalo, WI

Built 1990 Load: 38.9 t ADT: 217

LRD DUTTER RD

Good

Over: SESSIONS VALLEY CREEK

0.2M W JCT CTH WW, Buffalo, WI

Built 1991 Load: 38.9 t ADT: 22

CTH H

Good

Over: ELK CREEK

0.1M N JCT CTH Z, Buffalo, WI

Built 1991 Load: 38.9 t ADT: 325

CTH J

Good

Over: BR TAMARACK CREEK

0.1M S JCT CTH VV, Buffalo, WI

Built 1992 Load: 38.9 t ADT: 141

CTH G

Good

Over: EAGLE CREEK

1.0M W JCT STH 95, Buffalo, WI

Built 1993 Load: 38.9 t ADT: 303

CTH A

Good

Over: BEAR CREEK

0.2M E JCT CTH B, Buffalo, WI

Built 1998 Load: 38.9 t ADT: 119

CTH S

Good

Over: MILL REISCH CREEK

1.3M S JCT STH 37, Buffalo, WI

Built 2002 Load: 38.9 t ADT: 234

CTH E

Good

Over: BR WAUMANDEE CREEK

1.6M E JCT CTH U, Buffalo, WI

Built 2005 Load: 38.9 t ADT: 439

CTH J

Good

Over: BR BUFFALO RIVER

0.2M W JCT STH 37, Buffalo, WI

Built 2005 Load: 38.9 t ADT: 157

LRD MOE RD

Good

Over: BR PESSO CREEK

0.3M E JCT CTH BB, Buffalo, WI

Built 2006 Load: 38.9 t ADT: 105

STH 37

Good

Over: BR BUFFALO R

0.65M N JCT CTH N, Buffalo, WI

Built 2011 Load: 38.9 t ADT: 930

CTH D

Good

Over: TAMARACK CREEK

0.7M E JCT CTH J TO N, Buffalo, WI

Built 2022 Load: 38.9 t ADT: 178

LRD PALKOWSKI ROAD

Good

Over: BR WAUMANDEE CREEK

0.2 M N JCT CTH C, Buffalo, WI

Built 2022 Load: 38.9 t ADT: 20

LRD ALLEMAN ROAD

Good

Over: BUFFALO RIVER

0.4M S JCT USH 10, Buffalo, WI

Built 2021 Load: 38.9 t ADT: 94

STH 87

Good

Over: TRADE RIVER

0.9M N JCT CTH B, Burnett, WI

Built 1988 Load: 38.9 t ADT: 1,600

LRD THIRD AVE (DEA

Good

Over: YELLOW RIVER

0.7M S JCT STH 77, Burnett, WI

Built 1991 Load: 38.9 t ADT: 10

CTH D

Good

Over: N FK WOOD RIVER

1.5M W JCT CTH M, Burnett, WI

Built 1985 Load: 38.9 t ADT: 364

LRD EAST RIVERVIEW

Good

Over: N BR MANITOWOC RIVER

1.5M W JCT CTH JJ, Calumet, WI

Built 1985 Load: 38.9 t ADT: 436

CTH Y MAIN ST

Good

Over: S BR MANITOWOC RIVER

0.2M N JCT USH 151, Calumet, WI

Built 1988 Load: 38.9 t ADT: 1,400

STH 27

Good

Over: BIG DRYWOOD CREEK

3.4M N JCT CTH O, Chippewa, WI

Built 1987 Load: 38.9 t ADT: 3,600

CTH HH

Good

Over: TROUT CREEK

0.3 M N CTH N, Chippewa, WI

Built 1992 Load: 38.9 t ADT: 210

STH 27

Good

Over: YELLOW RIVER

0.7M N JCT CTH X, Chippewa, WI

Built 1998 Load: 38.9 t ADT: 3,200

STH 29 EB

Good

Over: UP RAILROAD

6.1M E JCT CTH T, Chippewa, WI

Built 2004 Load: 38.9 t ADT: 7,200

LRD 250TH STREET

Good

Over: SETH CREEK

1.6M N CTH O, Chippewa, WI

Built 2003 Load: 38.9 t ADT: 190

LRD 253RD STREET

Good

Over: HOLCOMBE FLOWAGE

0.5 M. N. 290TH AVENUE, Chippewa, WI

Built 2003 Load: 38.9 t ADT: 165

LRD 210TH STREET

Good

Over: BR S FK PAINT CREEK

0.4 M S OF 20TH AVE, Chippewa, WI

Built 2004 Load: 38.9 t ADT: 110

CTH M

Good

Over: BRANCH OF FISHER RVR

0.2M NORTH OF VV, Chippewa, WI

Built 2014 Load: 38.9 t ADT: 310

Showing 11,901-11,950 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.