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 HAPPY VALLEY D

Poor

Over: CHERRY VALLEY CREEK

1.1M W JCT CTH D, Richland, WI

Built 1929 Load: 13.0 t ADT: 23

CTH Y

Poor

Over: RUSH RIVER

1.3M S JCT CTH N, St. Croix, WI

Built 1964 Load: 13.0 t ADT: 250

LRD TROUT BROOK RD

Poor

Over: WILLOW RIVER

1.3M N JCT CTH A, St. Croix, WI

Built 1975 Load: 13.0 t ADT: 920

CTH U

Poor

Over: ELK CREEK

0.9M S JCT CTH I, Vernon, WI

Built 1964 Load: 13.0 t ADT: 303

LRD LACKEY LANE (D

Poor

Over: LAKE GENEVA TRIBUTARY

1.5M N JCT CTH BB, Walworth, WI

Built 1930 Load: 13.0 t ADT: 41

CTH N

Poor

Over: BR HEMLOCK CREEK

0.3M E JCT STH 186, Wood, WI

Built 1917 Load: 13.0 t ADT: 200

LRD RIPLINGER RD (

Poor

Over: NELSON CREEK

0.2M W JCT CTH K, Clark, WI

Built 1967 Load: 14.6 t ADT: 25

CTH S

Poor

Over: W FORK KNAPP CREEK

2.9 MILES W. OF CTH F, Crawford, WI

Built 1920 Load: 14.6 t ADT: 170

CTH PQ / WATER ST

Poor

Over: KOSHKONONG CREEK

0.1M W JCT USH 12, Dane, WI

Built 1957 Load: 14.6 t ADT: 1,480

LRD LAKE KEGONSA R

Poor

Over: BADFISH CREEK

0.2M S JCT CTH A, Dane, WI

Built 1941 Load: 14.6 t ADT: 146

LRD WILLS LANE (DE

Poor

Over: FRENCH CREEK

0.6M N JCT CTH H, Grant, WI

Built 1950 Load: 14.6 t ADT: 50

LRD TOWN CENTER RD

Poor

Over: RICHLAND CREEK

0.4M W JCT CTH K, Green, WI

Built 1966 Load: 14.6 t ADT: 105

LRD HYER RD (DEAD

Poor

Over: BIKE TRAIL

0.3M W JCT STH 80, Juneau, WI

Built 1970 Load: 14.6 t ADT: 10

LRD TWIN BRIDGE RD

Poor

Over: GALENA RIVER

1.3M W JCT CTH I, Lafayette, WI

Built 1965 Load: 14.6 t ADT: 176

LRD WILLIAMSBURG D

Poor

Over: PIGEON CREEK

0.3M W JCT STH 57, Ozaukee, WI

Built 1970 Load: 14.6 t ADT: 235

STH 35

Poor

Over: BIG RIVER

1.9M N JCT CTH E TO N, Pierce, WI

Built 1970 Load: 14.6 t ADT: 2,600

LRD WOLFE RD

Poor

Over: BR TRAVERSE VALLEY CREEK

0.3M N JCT CTH X, Trempealeau, WI

Built 1961 Load: 14.6 t ADT: 23

LRD BLOOMINGDALE R

Poor

Over: BR W FK KICKAPOO RIVER

0.4M W JCT CTH S, Vernon, WI

Built 1925 Load: 14.6 t ADT: 205

LRD E TYLER ST

Poor

Over: BAD RIVER

0.3M E JCT STH 13, Ashland, WI

Built 1920 Load: 16.2 t ADT: 119

LRD 24TH AVE

Poor

Over: HICKEY CREEK

1.1M S JCT CTH B, Barron, WI

Built 1950 Load: 16.2 t ADT: 47

LRD HOVEY VALLEY R

Poor

Over: ELK CREEK

0.2M N JCT CTH Z, Buffalo, WI

Built 1927 Load: 16.2 t ADT: 58

CTH KK

Poor

Over: LEE VALLEY CREEK

0.6M N JCT STH 37, Buffalo, WI

Built 1974 Load: 16.2 t ADT: 130

LRD WEEKS RD

Poor

Over: KILLSNAKE RIVER

1.4M N JCT CTH Y, Calumet, WI

Built 1972 Load: 16.2 t ADT: 41

CTH S

Poor

Over: YELLOW RIVER

0.8 M W CTH H, Chippewa, WI

Built 1955 Load: 16.2 t ADT: 220

LRD PARK RD (DNR)

Poor

Over: FISCHER RIVER

1.5M N JCT STH 64, Chippewa, WI

Built 1962 Load: 16.2 t ADT: 710

CTH MM

Poor

Over: HAY CREEK

0.2 M E CTH D, Chippewa, WI

Built 1945 Load: 16.2 t ADT: 410

CTH TT

Poor

Over: CRAWFISH RIVER

0.1M S JCT STH 16, Dodge, WI

Built 1956 Load: 16.2 t ADT: 422

LRD W MAIL RD

Poor

Over: ST CROIX RIVER 13

2.9M S JCT CTH M, Douglas, WI

Built 1963 Load: 16.2 t ADT: 107

CTH VV

Poor

Over: BEARGRASS CREEK

0.1M E CTH V, Eau Claire, WI

Built 1924 Load: 16.2 t ADT: 160

CTH K

Poor

Over: TAYCHEEDAH CREEK

0.5M S JCT STH 23, Fond du Lac, WI

Built 1936 Load: 16.2 t ADT: 3,600

CTH T

Poor

Over: TAYCHEEDAH CREEK

0.4M E JCT CTH K, Fond du Lac, WI

Built 1955 Load: 16.2 t ADT: 2,500

CTH V (RIENZI RD)

Poor

Over: DE NEVEU CREEK

1.1M W JCT USH 151, Fond du Lac, WI

Built 1967 Load: 16.2 t ADT: 1,600

CTH O

Poor

Over: PLATTE RIVER

2.7M E JCT USH 61, Grant, WI

Built 1956 Load: 16.2 t ADT: 600

LRD RATTLESNAKE RD

Poor

Over: BEETOWN BRANCH

1.8M S JCT STH 81, Grant, WI

Built 1950 Load: 16.2 t ADT: 37

LRD SLEEPY HOLLOW

Poor

Over: SAUNDERS CREEK

0.6M E JCT CTH S, Grant, WI

Built 1920 Load: 16.2 t ADT: 53

LRD MIDDLE JUDA RD

Poor

Over: RICHLAND CREEK

1.5M E JCT CTH K, Green, WI

Built 1975 Load: 16.2 t ADT: 158

LRD LAKEVIEW RD

Poor

Over: SNEAD CREEK

3.5M W JCT STH 23, Iowa, WI

Built 1945 Load: 16.2 t ADT: 52

LRD DROGSETH RD (D

Poor

Over: BOSTWICK CREEK

0.1M N JCT CTH I, La Crosse, WI

Built 1965 Load: 16.2 t ADT: 40

CTH O

Poor

Over: SPIRIT RIVER

0.5M S JCT STH 86, Lincoln, WI

Built 1962 Load: 16.2 t ADT: 414

CTH T

Poor

Over: BIG SOMO RIVER

1.3M S JCT USH 8, Lincoln, WI

Built 1971 Load: 16.2 t ADT: 86

CTH XX WASHINGTON

Poor

Over: BR CENTERVILLE CREEK

0.6M E JCT IH 43, Manitowoc, WI

Built 1917 Load: 16.2 t ADT: 795

CTH P

Poor

Over: BIG EAU PLEINE RIVER

1.5M E JCT CTH E TO W, Marathon, WI

Built 1958 Load: 16.2 t ADT: 297

LRD W WISCONSIN AV

Poor

Over: HONEY CREEK

0.1M E JCT STH 181, Milwaukee, WI

Built 1934 Load: 16.2 t ADT: 7,600

LRD DIXIE RD

Poor

Over: SAUK CREEK

0.1M W JCT CTH KW, Ozaukee, WI

Built 1951 Load: 16.2 t ADT: 58

CTH D

Poor

Over: EAU GALLE RIVER

1.3M W JCT STH 25, Pepin, WI

Built 1971 Load: 16.2 t ADT: 83

LRD DORWIN'S MILL

Poor

Over: BEAR CREEK

0.3M N JCT USH 10, Pepin, WI

Built 1973 Load: 16.2 t ADT: 87

CTH E

Poor

Over: HONEY CREEK

0.6M N JCT CTH O, Sauk, WI

Built 1969 Load: 16.2 t ADT: 270

LRD OLD HIGHWAY 47

Poor

Over: HERMAN CREEK

0.1M S JCT STH 156, Shawano, WI

Built 1920 Load: 16.2 t ADT: 101

LRD RIVER HEIGHTS

Poor

Over: MULLET RIVER

0.1M E JCT STH 67, Sheboygan, WI

Built 1984 Load: 16.2 t ADT: 55

CTH OO

Poor

Over: ONION RIVER

0.3M E JCT STH 32, Sheboygan, WI

Built 1931 Load: 16.2 t ADT: 270

Showing 14,001-14,050 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.