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 CEDAR CREEK RD

Poor

Over: CEDAR CREEK

0.3M E JCT CTH I, Ozaukee, WI

Built 1970 Load: 4.9 t ADT: 1,400

LRD ROTT RD (DEAD

Poor

Over: LITTLE BARABOO RIVER

0.1M S JCT CTH G, Sauk, WI

Built 1940 Load: 4.9 t ADT: 7

CTH N (DEAD END)

Poor

Over: BR MCCARTNEY BRANCH

1.8 M S JCT STH 133, Grant, WI

Built 1890 Load: 6.5 t ADT: 240

LRD OLD HWY Q

Poor

Over: BR W TWIN RIVER

0.1M S JCT CTH Q, Manitowoc, WI

Built 1924 Load: 6.5 t ADT: 88

LRD CENTER ST

Poor

Over: MULLET RIVER

0.1M E JCT CTH T, Sheboygan, WI

Built 1973 Load: 6.5 t ADT: 94

LRD STATE RD

Poor

Over: LITTLE RIB RIVER

0.4M S JCT STH 102, Taylor, WI

Built 1926 Load: 6.5 t ADT: 638

LRD ORCHARD VALLEY

Poor

Over: BR N BR MILWAUKEE RIVER

0.2M S JCT CTH H, Washington, WI

Built 1930 Load: 6.5 t ADT: 47

LRD STEINER RD

Poor

Over: KILLSNAKE RIVER

1.4M W JCT CTH Y, Calumet, WI

Built 1972 Load: 8.1 t ADT: 41

LRD HALL RD

Poor

Over: CRAWFISH RIVER

1.3M E JCT CTH A, Columbia, WI

Built 1961 Load: 8.1 t ADT: 56

LRD WEBER RD

Poor

Over: HORNBY HOLLOW

2.1M N JCT STH 82, Vernon, WI

Built 1940 Load: 8.1 t ADT: 47

LRD HORNBY RD

Poor

Over: BR HORNBY HOLLOW CREEK

2.4 M E. OF JCT CTH N, Vernon, WI

Built 1955 Load: 8.1 t ADT: 47

LRD KOWALD RD

Poor

Over: FOX RIVER

1.1M E JCT CTH H, Columbia, WI

Built 1930 Load: 9.7 t ADT: 31

CTH Y / STATE ST

Poor

Over: BLACK EARTH CREEK

0.5M N JCT USH 14, Dane, WI

Built 1951 Load: 9.7 t ADT: 950

LRD TWIN GROVE RD

Poor

Over: BR RICHLAND CREEK

0.6M S JCT CTH K, Green, WI

Built 1930 Load: 9.7 t ADT: 189

LRD RAND RD (DEAD

Poor

Over: DOUGLAS CREEK

0.1M S JCT CTH N, Jackson, WI

Built 1930 Load: 9.7 t ADT: 15

LRD PECORE RD

Poor

Over: PECORE CREEK

1.4M N JCT CTH M, Oconto, WI

Built 1955 Load: 9.7 t ADT: 60

LRD 570TH STREET (

Poor

Over: DRY RUN

0.5M S CTH V, Pierce, WI

Built 1945 Load: 9.7 t ADT: 15

LRD WOODLAND RD

Poor

Over: BR SHEBOYGAN RIVER

0.8M N JCT CTH O, Sheboygan, WI

Built 1906 Load: 9.7 t ADT: 35

CTH XX

Poor

Over: COE HOLLOW CREEK

3.7M S JCT STH 56, Vernon, WI

Built 1941 Load: 9.7 t ADT: 195

LRD DODSON HOLLOW

Poor

Over: DODSON HOLLOW CREEK

2.6M W JCT CTH KK, Vernon, WI

Built 1940 Load: 9.7 t ADT: 47

LRD BIGALKE RD

Poor

Over: S BR LITTLE WOLF RIVER

0.2M W JCT STH 22, Waupaca, WI

Built 1890 Load: 9.7 t ADT: 50

LRD STADT RD

Poor

Over: MILL CREEK

0.3M N JCT USH 10, Wood, WI

Built 1965 Load: 9.7 t ADT: 40

CTH M

Poor

Over: CHIPPEWA RIVER 19

0.5 M W STH 27, Chippewa, WI

Built 1950 Load: 11.3 t ADT: 1,070

CTH G

Poor

Over: BR W BR SUGAR RIVER

1.3M S JCT STH 92, Dane, WI

Built 1953 Load: 11.3 t ADT: 1,200

LRD WRIGHT RD

Poor

Over: JOHNSON CREEK

0.4M E JCT CTH Y, Jefferson, WI

Built 1963 Load: 11.3 t ADT: 155

CTH G

Poor

Over: COON CREEK

2.0M S JCT CTH H, La Crosse, WI

Built 1939 Load: 11.3 t ADT: 87

LRD CHESAK RD

Poor

Over: SCOTCH CREEK

1.1M E JCT CTH M, Marathon, WI

Built 1962 Load: 11.3 t ADT: 20

LRD SUNNYVIEW ROAD

Poor

Over: TRIBUTARY OF MUD CREEK

1/8 MILE EAST OF BLUEMOUN, Outagamie, WI

Built 1984 Load: 11.3 t ADT: 400

LRD FARRELL RD

Poor

Over: BR APPLE CREEK

0.7M S JCT CTH UU, Outagamie, WI

Built 1907 Load: 11.3 t ADT: 94

LRD 2 MILE RD

Poor

Over: W BR ROOT RIVER CANAL

0.9M E JCT CTH U, Racine, WI

Built 1973 Load: 11.3 t ADT: 94

LRD SLAB CITY RD

Poor

Over: W BR SHIOC RIVER

1.1M W JCT STH 47, Shawano, WI

Built 1927 Load: 11.3 t ADT: 101

LRD SUNRISE LANE (

Poor

Over: CHAMPION VALLEY CREEK

0.1M E JCT CTH H, Vernon, WI

Built 1969 Load: 11.3 t ADT: 20

LRD ARTHUR RD

Poor

Over: SOO LINE

0.2M W JCT USH 41, Washington, WI

Built 1936 Load: 11.3 t ADT: 188

LRD 225TH AVENUE

Poor

Over: DUNCAN CREEK

0.1 M E 83RD STREET, Chippewa, WI

Built 1981 Load: 13.0 t ADT: 155

LRD 370TH STREET

Poor

Over: BRANCH WOLF RIVER

0.4 M N 25TH AVENUE, Chippewa, WI

Built 1928 Load: 13.0 t ADT: 100

CTH G

Poor

Over: W BR SUGAR RIVER

1.6M S JCT STH 92, Dane, WI

Built 1953 Load: 13.0 t ADT: 1,200

CTH JG

Poor

Over: ELVERS CREEK

2.5M N JCT USH 18, Dane, WI

Built 1966 Load: 13.0 t ADT: 122

LRD ROGERSVILLE RO

Poor

Over: W BR FOND DU LAC RIVER

0.2M W CTH VVV, Fond du Lac, WI

Built 1927 Load: 13.0 t ADT: 1

CTH T

Poor

Over: WISCONSIN RIVER 03

0.9M N JCT STH 133, Grant, WI

Built 1958 Load: 13.0 t ADT: 1,200

LRD BIG GREEN RD

Poor

Over: BIG GREEN RIVER

0.2M S JCT CTH K, Grant, WI

Built 1919 Load: 13.0 t ADT: 53

LRD FRAME RD (DEAD

Poor

Over: W BR BLUE MOUNDS CREEK

0.2M E JCT CTH K, Iowa, WI

Built 1930 Load: 13.0 t ADT: 40

CTH Z

Poor

Over: HAY CREEK

5.3M N JCT STH 54, Jackson, WI

Built 1964 Load: 13.0 t ADT: 145

LRD ORANGE MILL RD

Poor

Over: LITTLE LEMONWEIR RIVER

0.1M S JCT USH 12, Juneau, WI

Built 1971 Load: 13.0 t ADT: 98

CTH N

Poor

Over: BR SCOTCH CREEK

0.4M W JCT CTH H, Marathon, WI

Built 1945 Load: 13.0 t ADT: 1,590

LRD RIVER HILLS RD

Poor

Over: BIG CAIN CREEK

1.6M E JCT CTH WW, Marathon, WI

Built 1962 Load: 13.0 t ADT: 45

LRD ABE LINCOLN AV

Poor

Over: CARLSON CREEK

1.4M S JCT STH 153, Marathon, WI

Built 1929 Load: 13.0 t ADT: 88

CTH S

Poor

Over: BR BIG RIB RIVER

2.8M N JCT CTH U TO E, Marathon, WI

Built 1938 Load: 13.0 t ADT: 630

CTH D

Poor

Over: SUGAR CAMP CREEK

0.8M W JCT CTH H, Oneida, WI

Built 1960 Load: 13.0 t ADT: 849

CTH T

Poor

Over: NORTH CHANNEL WISC RIVER

0.1M S JCT STH 60, Richland, WI

Built 1958 Load: 13.0 t ADT: 1,200

CTH Q

Poor

Over: FOX HOLLOW CREEK

1.7M E JCT CTH E, Richland, WI

Built 1957 Load: 13.0 t ADT: 320

Showing 13,951-14,000 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.