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 NEHRBASS RD

Fair

Over: BR BLACK CREEK

0.3M S JCT CTH A, Marathon, WI

Built 1946 Load: 19.4 t ADT: 42

LRD ROSEDALE AVE

Fair

Over: W BR BIG EAU PLEINE RIVE

1.9M N JCT STH 29, Marathon, WI

Built 1936 Load: 19.4 t ADT: 90

LRD MERIDIAN RD

Fair

Over: BLACK CREEK

1.8M N JCT CTH U, Marathon, WI

Built 1940 Load: 19.4 t ADT: 126

LRD CHOKECHERRY RD

Fair

Over: DILL CREEK

1.7M E JCT STH 13, Marathon, WI

Built 1955 Load: 19.4 t ADT: 92

LRD MAREK RD

Fair

Over: MISCAUNO CREEK

0.5M S JCT CTH Z, Marinette, WI

Built 1950 Load: 19.4 t ADT: 80

LRD LINCOLN AVE

Fair

Over: KICKAPOO RIVER

0.2M W JCT STH 131 TO N, Monroe, WI

Built 1927 Load: 19.4 t ADT: 101

13TH AVE

Fair

Over: SILVER CREEK

~1 MI N OF US 90, Monroe, WI

Built 1970 Load: 19.4 t ADT: 500

LRD FRANKLIN ST

Fair

Over: BEAVER CREEK

0.1M W JCT STH 21, Monroe, WI

Built 1927 Load: 19.4 t ADT: 3,525

LRD FAIRWAY RD

Fair

Over: BIG CREEK

1.0M N JCT CTH B, Monroe, WI

Built 1970 Load: 19.4 t ADT: 47

LRD LOGAN RD

Fair

Over: N BR OCONTO RIVER

1.6M E JCT STH 32, Oconto, WI

Built 1974 Load: 19.4 t ADT: 100

LRD WILLOW RD

Fair

Over: WILLOW RIVER

9.9M N JCT USH 8, Oneida, WI

Built 1967 Load: 19.4 t ADT: 392

LRD RIVER BEND RD

Fair

Over: PELICAN RIVER

0.5M N JCT CTH G, Oneida, WI

Built 1965 Load: 19.4 t ADT: 177

LRD DEERVIEW RD

Fair

Over: TOAD CREEK

1.1M W JCT STH 47, Outagamie, WI

Built 1950 Load: 19.4 t ADT: 392

LRD WEGE RD

Fair

Over: BEAR CREEK

1.4M W JCT CTH A, Outagamie, WI

Built 1968 Load: 19.4 t ADT: 205

LRD LAWE ST

Fair

Over: FOX RIVER

0.9M S JCT STH 96, Outagamie, WI

Built 1979 Load: 19.4 t ADT: 5,800

CTH Y

Fair

Over: CEDAR CREEK

1.2M N JCT STH 60, Ozaukee, WI

Built 1957 Load: 19.4 t ADT: 1,500

CTH N

Fair

Over: BEARPEN COULEE CREEK

0.8M N JCT CTH D, Pepin, WI

Built 1930 Load: 19.4 t ADT: 862

CTH S

Fair

Over: PLUM CREEK

0.2M N JCT USH 10, Pierce, WI

Built 1959 Load: 19.4 t ADT: 412

CTH U

Fair

Over: PLUM CREEK

1.5M S JCT CTH S, Pierce, WI

Built 1959 Load: 19.4 t ADT: 412

IH USH51-IH39 SB

Fair

Over: FV&W RR

4.6M S JCT USH 10 TO E, Portage, WI

Built 1969 Load: 19.4 t ADT: 11,050

LRD COUNTY LINE RD

Fair

Over: BEAR CREEK

0.6M W JCT CTH O, Portage, WI

Built 1940 Load: 19.4 t ADT: 50

CTH F

Fair

Over: KNAPP CREEK

0.3M N JCT CTH S, Richland, WI

Built 1960 Load: 19.4 t ADT: 120

CTH U

Fair

Over: KNAPP CREEK

1.4M S JCT USH 14, Richland, WI

Built 1967 Load: 19.4 t ADT: 76

LRD RIVER RD

Fair

Over: GOOSE CREEK

0.7M E JCT STH 131, Richland, WI

Built 1929 Load: 19.4 t ADT: 47

LRD E BASSWOOD RD

Fair

Over: MILL CREEK

0.8M E JCT CTH E, Richland, WI

Built 1964 Load: 19.4 t ADT: 47

LRD CREEK RD

Fair

Over: TURTLE CREEK

4.1M E JCT STH 140, Rock, WI

Built 1957 Load: 19.4 t ADT: 396

LRD W MEMORIAL DR

Fair

Over: ROCK RIVER

0.1M W JCT USH 51, Rock, WI

Built 1969 Load: 19.4 t ADT: 15,900

CTH B

Fair

Over: N FK MAIN CREEK

1.7M S JCT USH 8-12, Rusk, WI

Built 1957 Load: 19.4 t ADT: 162

LRD TOWN LINE RD

Fair

Over: MID FK MAIN CREEK

2.1M W JCT STH 73-111, Rusk, WI

Built 1935 Load: 19.4 t ADT: 86

LRD E GROW RD

Fair

Over: S FK MAIN CREEK

1.4M N JCT CTH V-75, Rusk, WI

Built 1974 Load: 19.4 t ADT: 43

LRD BOOT JACK RD

Fair

Over: LITTLE BARABOO RIVER

0.4M W JCT CTH G, Sauk, WI

Built 1973 Load: 19.4 t ADT: 79

CTH J BEECH ST

Fair

Over: TIGER CREEK

0.2M N JCT CTH M TO W, Shawano, WI

Built 1923 Load: 19.4 t ADT: 720

LRD TOWN LINE RD

Fair

Over: M BR EMBARRASS RIVER

0.3M E JCT USH 45, Shawano, WI

Built 1978 Load: 19.4 t ADT: 235

LRD CARDINAL LANE

Fair

Over: M BR EMBARRASS RIVER

0.1M N JCT STH 29, Shawano, WI

Built 1960 Load: 19.4 t ADT: 100

CTH BB

Fair

Over: N BR PENSAUKEE RIVER

1.2M N JCT CTH E, Shawano, WI

Built 1954 Load: 19.4 t ADT: 327

CTH J

Fair

Over: SHEBOYGAN RIVER

0.7M W JCT CTH M, Sheboygan, WI

Built 1967 Load: 19.4 t ADT: 1,938

LRD ALPINE RD

Fair

Over: SHEBOYGAN RIVER

0.6M S JCT CTH O, Sheboygan, WI

Built 1938 Load: 19.4 t ADT: 94

LRD CAMP RIVERSITE

Fair

Over: ONION RIVER

0.1M N JCT CTH W, Sheboygan, WI

Built 1935 Load: 19.4 t ADT: 47

LRD 170TH AVE

Fair

Over: BR WILLOW RIVER

0.8M E JCT CTH T, St. Croix, WI

Built 1924 Load: 19.4 t ADT: 150

CTH D

Fair

Over: EAU GALLE RIVER

0.9M S JCT CTH E, St. Croix, WI

Built 1939 Load: 19.4 t ADT: 981

CTH A

Fair

Over: PINE CREEK

2.2M E JCT CTH DD, Taylor, WI

Built 1962 Load: 19.4 t ADT: 553

LRD SETTLEMENT DR

Fair

Over: BLACK RIVER

1.2M W JCT STH 13, Taylor, WI

Built 1979 Load: 19.4 t ADT: 58

STH 13

Fair

Over: TRIB. TO BLACK RIVER

0.2 MI N OF JCT CTH M, Taylor, WI

Built 1986 Load: 19.4 t ADT: 4,900

CTH H

Fair

Over: SHOULDER CREEK

1.2M S JCT STH 194, Taylor, WI

Built 1975 Load: 19.4 t ADT: 246

LRD SPRING DR

Fair

Over: SPRING CREEK

1.4M N JCT STH 64, Taylor, WI

Built 1920 Load: 19.4 t ADT: 92

LRD THOMPSON COULE

Fair

Over: PIGEON CREEK

0.4M N JCT USH 53, Trempealeau, WI

Built 1981 Load: 19.4 t ADT: 50

LRD LINRUDE RD

Fair

Over: FRENCH CREEK

0.1M W JCT CTH T, Trempealeau, WI

Built 1980 Load: 19.4 t ADT: 117

CTH D

Fair

Over: OTTER CREEK

1.2M N JCT STH 82, Vernon, WI

Built 1975 Load: 19.4 t ADT: 420

LRD WROBEL RD

Fair

Over: HOHLFELD COULEE CREEK

0.8M E JCT CTH K, Vernon, WI

Built 1969 Load: 19.4 t ADT: 47

LRD MAPLEDALE RD

Fair

Over: BR BISHOP BRANCH

0.9M N JCT STH 56, Vernon, WI

Built 1925 Load: 19.4 t ADT: 205

Showing 3,301-3,350 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.