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 REIFS MILLS RD

Fair

Over: MUD CREEK

0.2M E JCT CTH W, Manitowoc, WI

Built 1910 Load: 21.1 t ADT: 23

LRD CORLAD RD

Fair

Over: BLACK CREEK

1.8M S JCT STH 97, Marathon, WI

Built 1982 Load: 21.1 t ADT: 25

LRD CEMETARY RD

Fair

Over: PORKY CREEK

0.1M N JCT STH 29, Marathon, WI

Built 1967 Load: 21.1 t ADT: 30

LRD PARKWAY RD

Fair

Over: PESHTIGO RIVER

4.3M N JCT CTH X, Marinette, WI

Built 1960 Load: 21.1 t ADT: 351

LRD TOWN LINE RD

Fair

Over: LITTLE PESHTIGO RIVER

0.8M N JCT CTH B, Marinette, WI

Built 1961 Load: 21.1 t ADT: 90

CTH CX

Fair

Over: NEENAH CREEK

0.4M S JCT USH 51, Marquette, WI

Built 1966 Load: 21.1 t ADT: 1,100

LRD W LAYTON AVE

Fair

Over: BR KINNICKINNIC RIVER

0.1M W JCT STH 38, Milwaukee, WI

Built 1928 Load: 21.1 t ADT: 21,600

LRD OLD STH 21 EB

Fair

Over: HANSEN CREEK

0.1 M E OF CTH Q, Monroe, WI

Built 1937 Load: 21.1 t ADT: 100

LRD LEAPFROG AVE

Fair

Over: BR MORRIS CREEK

0.2M E JCT STH 71, Monroe, WI

Built 1932 Load: 21.1 t ADT: 850

CTH A

Fair

Over: BR SILVER CREEK

2.8M E JCT CTH AA, Monroe, WI

Built 1921 Load: 21.1 t ADT: 320

LRD CARMEL AVE

Fair

Over: SOPER CREEK

0.3M W JCT STH 27, Monroe, WI

Built 1970 Load: 21.1 t ADT: 47

LRD ELLSWORTH ROAD

Fair

Over: MILL CREEK

3.0M N JCT STH 21, Monroe, WI

Built 1922 Load: 21.1 t ADT: 205

LRD IOWA RD

Fair

Over: BR COUNCIL CREEK

0.1M S JCT STH 131, Monroe, WI

Built 1935 Load: 21.1 t ADT: 94

LRD MARIPOSA AVE

Fair

Over: LITTLE LA CROSSE RIVER

0.1M E JCT STH 27, Monroe, WI

Built 1917 Load: 21.1 t ADT: 29

LRD BUTTS AVE

Fair

Over: LEMONWEIR CREEK

0.6M W JCT USH 12, Monroe, WI

Built 1930 Load: 21.1 t ADT: 2,700

LRD HAWK RD

Fair

Over: SILVER CREEK

0.4M N JCT CTH A, Monroe, WI

Built 1926 Load: 21.1 t ADT: 58

LRD NOVEL AVE (DEA

Fair

Over: BR BARABOO RIVER

0.1M E JCT CTH W, Monroe, WI

Built 1954 Load: 21.1 t ADT: 10

LRD JAGIELLO RD

Fair

Over: KELLY BROOK

0.8M N JCT CTH A, Oconto, WI

Built 1969 Load: 21.1 t ADT: 100

CTH N

Fair

Over: LAKE NOKOMIS FLOWAGE

1.5M E JCT USH 51, Oneida, WI

Built 1965 Load: 21.1 t ADT: 603

CTH VV

Fair

Over: TOAD CREEK

1.0M W JCT CTH X TO N, Outagamie, WI

Built 1954 Load: 21.1 t ADT: 870

LRD DEERVIEW

Fair

Over: SHIOC RIVER

1.4M W JCT STH 47, Outagamie, WI

Built 1955 Load: 21.1 t ADT: 430

LRD MILLER ROAD

Fair

Over: BLACK CREEK

0.3M S JCT CTH G, Outagamie, WI

Built 1966 Load: 21.1 t ADT: 141

LRD BRUGGER RD

Fair

Over: SHIOC RIVER

1.6M W JCT STH 47, Outagamie, WI

Built 1936 Load: 21.1 t ADT: 350

LRD OLD SEYMOUR RD

Fair

Over: ONEIDA CREEK

0.9M E JCT CTH H, Outagamie, WI

Built 1969 Load: 21.1 t ADT: 205

LRD MAYFLOWER DR

Fair

Over: BEAR CREEK

1.0M N JCT CTH O, Outagamie, WI

Built 1967 Load: 21.1 t ADT: 47

LRD S ISLAND ST

Fair

Over: POWER CANAL

1.1M S JCT STH 96, Outagamie, WI

Built 1967 Load: 21.1 t ADT: 1,057

LRD BUBOLTZ RD

Fair

Over: BR BEAR CREEK

0.2M N JCT CTH WW, Outagamie, WI

Built 1930 Load: 21.1 t ADT: 47

CTH H

Fair

Over: MILWAUKEE RIVER

0.2M E JCT CTH I TO S, Ozaukee, WI

Built 1967 Load: 21.1 t ADT: 5,330

USH 63

Fair

Over: S FK LOST CREEK

0.1M N JCT CTH DD, Pierce, WI

Built 1960 Load: 21.1 t ADT: 2,700

STH 72

Fair

Over: CAVE CREEK

1.4M E JCT CTH BB, Pierce, WI

Built 1962 Load: 21.1 t ADT: 1,200

STH 35

Fair

Over: TRIMBELLE RIVER

0.4M N JCT CTH K, Pierce, WI

Built 1962 Load: 21.1 t ADT: 3,500

LRD DEWEY DR

Fair

Over: HAY MEADOW CREEK

2.6M E JCT CTH X, Portage, WI

Built 1922 Load: 21.1 t ADT: 218

LRD MILWAUKEE AVE

Fair

Over: WHITE RIVER

0.1M N JCT STH 83 TO S, Racine, WI

Built 1956 Load: 21.1 t ADT: 9,800

LRD SEVEN MILE RD

Fair

Over: ROOT RIVER CANAL

0.4M E JCT CTH U, Racine, WI

Built 1965 Load: 21.1 t ADT: 881

LRD FIVE MILE RD

Fair

Over: ROOT RIVER CANAL

1.1M E JCT CTH U, Racine, WI

Built 1965 Load: 21.1 t ADT: 440

STH 80

Fair

Over: PINE RIVER

2.0M N JCT STH 56 TO W, Richland, WI

Built 1956 Load: 21.1 t ADT: 4,000

CTH S

Fair

Over: KNAPP CREEK

0.3M W JCT CTH F, Richland, WI

Built 1956 Load: 21.1 t ADT: 119

LRD CHURCH RD

Fair

Over: ELK CREEK

0.1M S JCT CTH U, Richland, WI

Built 1966 Load: 21.1 t ADT: 94

STH 59

Fair

Over: BADFISH CREEK

2.3M E JCT STH 138, Rock, WI

Built 1950 Load: 21.1 t ADT: 2,000

USH 51

Fair

Over: ROCK RIVER

0.9M N JCT CTH M TO W, Rock, WI

Built 1938 Load: 21.1 t ADT: 5,800

LRD STATE LINE RD

Fair

Over: DRY CREEK

0.8M S JCT CTH P, Rock, WI

Built 1973 Load: 21.1 t ADT: 41

LRD FERN RD

Fair

Over: TRIBUTARY TO LITTLE JUMP

0.5M N JCT STH 194, Rusk, WI

Built 1959 Load: 21.1 t ADT: 86

CTH P

Fair

Over: DELL CREEK

0.5M E JCT CTH H, Sauk, WI

Built 1970 Load: 21.1 t ADT: 4,700

STH 27

Fair

Over: TOTAGATIC RIVER FLOW

3.2M N JCT STH 77 TO W, Sawyer, WI

Built 1958 Load: 21.1 t ADT: 1,100

LRD BLAISDELL RD

Fair

Over: BRUNET RIVER

1.4M W JCT CTH GG, Sawyer, WI

Built 1940 Load: 21.1 t ADT: 195

CTH CCC

Fair

Over: WOLF RIVER

0.3M W JCT CTH K, Shawano, WI

Built 1952 Load: 21.1 t ADT: 350

CTH D

Fair

Over: N BR EMBARRASS RIVER

0.7M N JCT CTH J, Shawano, WI

Built 1938 Load: 21.1 t ADT: 900

LRD LAKESHORE RD.

Fair

Over: SEVEN MILE CREEK

0.3M N JCT CTH FF, Sheboygan, WI

Built 1956 Load: 21.1 t ADT: 1,100

LRD SUMAC RD

Fair

Over: MULLET RIVER

0.2M W JCT CTH PP, Sheboygan, WI

Built 1972 Load: 21.1 t ADT: 205

CTH LS

Fair

Over: PIGEON RIVER

4.5M S JCT CTH FF, Sheboygan, WI

Built 1974 Load: 21.1 t ADT: 1,400

Showing 3,451-3,500 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.