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 ROOSEVELT RD

Fair

Over: ASHIPPUN RIVER

0.4M W JCT CTH P, Dodge, WI

Built 1963 Load: 24.3 t ADT: 205

LRD SILVER CREEK R

Fair

Over: SILVER CREEK

0.4M E JCT STH 16, Dodge, WI

Built 1970 Load: 24.3 t ADT: 215

CTH C

Fair

Over: BEAVER CREEK

0.2M S JCT CTH G, Dodge, WI

Built 1979 Load: 24.3 t ADT: 176

CTH H

Fair

Over: BR E BR ROCK RIVER

0.6M N JCT USH 28, Dodge, WI

Built 1968 Load: 24.3 t ADT: 235

CTH AY

Fair

Over: WILDCAT CREEK

0.5M E JCT CTH S, Dodge, WI

Built 1951 Load: 24.3 t ADT: 369

CTH K

Fair

Over: CASPER CREEK

0.2M S JCT CTH J, Dodge, WI

Built 1975 Load: 24.3 t ADT: 290

CTH KW

Fair

Over: PRATT CREEK

0.8M N JCT CTH K, Dodge, WI

Built 1959 Load: 24.3 t ADT: 490

CTH KW

Fair

Over: PRATT CREEK

1.0M N JCT CTH K, Dodge, WI

Built 1959 Load: 24.3 t ADT: 490

CTH EE

Fair

Over: MUD RUN CREEK

0.9M N JCT CTH MM, Dodge, WI

Built 1956 Load: 24.3 t ADT: 1,100

CTH C

Fair

Over: MILL CREEK

0.1M E JCT USH 151, Dodge, WI

Built 1976 Load: 24.3 t ADT: 1,500

LRD TOWN RD

Fair

Over: WHITEFISH BAY CREEK

0.8M E JCT CTH T, Door, WI

Built 1955 Load: 24.3 t ADT: 293

STH 13

Fair

Over: LAKE CREEK

2.8M N JCT CTH F, Douglas, WI

Built 1962 Load: 24.3 t ADT: 1,400

CTH L

Fair

Over: CRANBERRY CREEK

3.8M S JCT CTH B, Douglas, WI

Built 1939 Load: 24.3 t ADT: 301

STH 29-HUDSON RD

Fair

Over: RED CEDAR RIVER

0.1M E JCT CTH P, Dunn, WI

Built 1953 Load: 24.3 t ADT: 5,300

CTH Q

Fair

Over: TIFFANY CREEK

0.1M N JCT STH 170, Dunn, WI

Built 1960 Load: 24.3 t ADT: 456

CTH V

Fair

Over: LOWER PINE CREEK

3.4M E JCT STH 25, Dunn, WI

Built 1966 Load: 24.3 t ADT: 263

CTH N

Fair

Over: HAY RIVER

0.3M E JCT CTH F, Dunn, WI

Built 1987 Load: 24.3 t ADT: 130

LRD 150TH AVE

Fair

Over: ROCK CREEK

0.2M W JCT STH 85, Dunn, WI

Built 1981 Load: 24.3 t ADT: 192

CTH K

Fair

Over: IRVING CREEK

1.2M N JCT CTH D, Dunn, WI

Built 1983 Load: 24.3 t ADT: 263

LRD 220TH ST

Fair

Over: KNIGHTS CREEK

0.8M W JCT CTH D, Dunn, WI

Built 1969 Load: 24.3 t ADT: 109

CTH O

Fair

Over: CRANBERRY CREEK

2.6M N JCT STH 85, Dunn, WI

Built 1966 Load: 24.3 t ADT: 158

CTH W

Fair

Over: BR RED CEDAR RIVER

2.9M N JCT STH 170, Dunn, WI

Built 1962 Load: 24.3 t ADT: 160

LRD 570TH ST

Fair

Over: LITTLE ELK CREEK

0.5M S JCT CTH J, Dunn, WI

Built 1947 Load: 24.3 t ADT: 76

CTH KB

Fair

Over: CNW RR

0.8M N USH 12, Eau Claire, WI

Built 1963 Load: 24.3 t ADT: 2,562

CTH I

Fair

Over: CLEAR CREEK

0.2M N CTH HH TO E, Eau Claire, WI

Built 1974 Load: 24.3 t ADT: 358

CTH NL

Fair

Over: HAY CREEK

0.7M E CTH N, Eau Claire, WI

Built 1981 Load: 24.3 t ADT: 256

STH 27

Fair

Over: BROWN CREEK

0.5M N JCT CTH V, Eau Claire, WI

Built 1941 Load: 24.3 t ADT: 2,300

LRD WATERTOWER RD

Fair

Over: CNW RR

1.1M N USH 12, Eau Claire, WI

Built 1970 Load: 24.3 t ADT: 87

LRD BARTIG RD

Fair

Over: THOMPSON VALLEY CREEK

0.4M N USH 12, Eau Claire, WI

Built 1971 Load: 24.3 t ADT: 307

LRD MORGAN LAKE RD

Fair

Over: POPPLE RIVER

3.4M W JCT STH 101, Florence, WI

Built 1983 Load: 24.3 t ADT: 153

LRD MADISON ST (CT

Fair

Over: ROCK RIVER

0.3M N JCT STH 49, Fond du Lac, WI

Built 1950 Load: 24.3 t ADT: 1,800

LRD GUENTHER RD (D

Fair

Over: W BR ROCK RIVER

0.2M S JCT CTH AS/USH 151, Fond du Lac, WI

Built 1936 Load: 24.3 t ADT: 15

CTH W

Fair

Over: SHEBOYGAN RIVER

1.1M S JCT CTH WW, Fond du Lac, WI

Built 1967 Load: 24.3 t ADT: 1,720

CTH Y

Fair

Over: SEVEN MILE CREEK

1.2M S JCT CTH T, Fond du Lac, WI

Built 1923 Load: 24.3 t ADT: 795

LRD HILLVIEW RD

Fair

Over: MULLET RIVER

1.1M S JCT STH 23, Fond du Lac, WI

Built 1984 Load: 24.3 t ADT: 107

CTH V

Fair

Over: DE NEVEU CREEK

0.8M S JCT US 151, Fond du Lac, WI

Built 1977 Load: 24.3 t ADT: 2,725

LRD MEADOW RD

Fair

Over: MILWAUKEE RIVER

0.7M W JCT CTH W, Fond du Lac, WI

Built 1963 Load: 24.3 t ADT: 47

LRD HAPPY RD

Fair

Over: MILWAUKEE RIVER

1.1M S JCT CTH F, Fond du Lac, WI

Built 1983 Load: 24.3 t ADT: 47

LRD DIVISION ST

Fair

Over: DE NEVEU CREEK

0.8M E JCT USH 151. 0.4 M, Fond du Lac, WI

Built 1982 Load: 24.3 t ADT: 4,800

LRD MINNESOTA AVE

Fair

Over: MOSHER CREEK

0.5M E JCT PROSPECT AVENU, Fond du Lac, WI

Built 1950 Load: 24.3 t ADT: 2,616

LRD AUBURN-ASHFORD

Fair

Over: MILWAUKEE RIVER

0.4M E JCT USH 45, Fond du Lac, WI

Built 1940 Load: 24.3 t ADT: 60

LRD CLOVERLAND ROA

Fair

Over: BR E BR ROCK RIVER

0.1M E JCT CTH H, Fond du Lac, WI

Built 1982 Load: 24.3 t ADT: 58

CTH WH

Fair

Over: WOLF LAKE CREEK

2.5M S JCT OF CTH Q, Fond du Lac, WI

Built 2002 Load: 24.3 t ADT: 960

LRD LONE ELM RD

Fair

Over: DRAINAGE DITCH

0.75M W OF JCT STH 45, Fond du Lac, WI

Built 1997 Load: 24.3 t ADT: 316

FR 2458

Fair

Over: BRULE CREEK

2.3 MI N OF JCT STH 70, Forest, WI

Built 1963 Load: 24.3 t ADT: 50

LRD DICK SAMZ RD

Fair

Over: N BR PESHTIGO RIVER

1.7M N JCT CTH G, Forest, WI

Built 1982 Load: 24.3 t ADT: 60

CTH G

Fair

Over: OTTER CREEK

0.5M W JCT CTH O, Forest, WI

Built 1969 Load: 24.3 t ADT: 659

STH 11

Fair

Over: LITTLE MENOMINEE CREEK

4.5M E JCT USH 61, Grant, WI

Built 1939 Load: 24.3 t ADT: 4,300

CTH U

Fair

Over: BEETOWN BRANCH

0.5M N JCT STH 81, Grant, WI

Built 1958 Load: 24.3 t ADT: 740

LRD KUSSMAUL RD

Fair

Over: BR WARNER CREEK

0.1M S JCT CTH C, Grant, WI

Built 1977 Load: 24.3 t ADT: 102

Showing 3,801-3,850 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.