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

CTH N

Fair

Over: BR RUSH CREEK

2.4M S JCT STH 82, Vernon, WI

Built 1925 Load: 17.8 t ADT: 217

LRD OLSTAD HOLLOW

Fair

Over: TIMBER COULEE CREEK

0.2M S JCT CTH P, Vernon, WI

Built 1950 Load: 17.8 t ADT: 20

LRD ST PATRICK'S R

Fair

Over: S BR BARABOO RIVER

1.7M N JCT CTH V, Vernon, WI

Built 1976 Load: 17.8 t ADT: 94

LRD ISLAND RD

Fair

Over: TURTLE CREEK

1.4M W JCT CTH P, Walworth, WI

Built 1965 Load: 17.8 t ADT: 293

CTH G

Fair

Over: CEDAR CREEK

0.8M N JCT STH 60, Washington, WI

Built 1956 Load: 17.8 t ADT: 1,500

LRD LITTLE WOLF RI

Fair

Over: LITTLE WOLF RIVER

1.4M E JCT CTH P, Waupaca, WI

Built 1963 Load: 17.8 t ADT: 130

LRD MAXWELL RD

Fair

Over: SKELTON CREEK

1.0M W JCT CTH T, Winnebago, WI

Built 1930 Load: 17.8 t ADT: 82

LRD YELLOWSTONE DR

Fair

Over: BEAR CREEK

0.9M W JCT CTH S, Wood, WI

Built 1966 Load: 17.8 t ADT: 80

LRD BROOKSIDE RD

Fair

Over: LITTLE BEAR CREEK

0.6M N JCT TRESTIK DR, Wood, WI

Built 1959 Load: 17.8 t ADT: 80

CTH B

Fair

Over: BR ROCKY RUN

1.3M S JCT STH 73, Wood, WI

Built 1968 Load: 17.8 t ADT: 292

CTH E

Fair

Over: BR HEMLOCK CREEK

2.5M N JCT CTH N, Wood, WI

Built 1965 Load: 17.8 t ADT: 479

IRR BIA RTE 51

Fair

Over: SO. BRANCH OCONTO RIVER

15 KM SOUTH OF LANGLADE, Menominee, WI

Built 1977 Load: 18.1 t ADT: 50

LRD 12TH ST

Fair

Over: VERMILLION RIVER

0.2M N JCT USH 8, Barron, WI

Built 1966 Load: 19.4 t ADT: 94

LRD 5 3/4 AVENUE

Fair

Over: TEN MILE CREEK

0.2 M W OF 30TH STREET, Barron, WI

Built 1981 Load: 19.4 t ADT: 35

LRD 0 AVE

Fair

Over: S FK HAY RIVER

0.7M W JCT CTH K, Barron, WI

Built 1955 Load: 19.4 t ADT: 47

CTH GV

Fair

Over: BR EAST RIVER

1.1M S JCT CTH V, Brown, WI

Built 1970 Load: 19.4 t ADT: 14,900

LRD OVERLAND RD

Fair

Over: DUTCHMANS CREEK

0.5M S JCT CTH EE, Brown, WI

Built 1925 Load: 19.4 t ADT: 94

LRD CREAMERY RD

Fair

Over: ASHWAUBENON CREEK

0.3M E JCT USH 41, Brown, WI

Built 1950 Load: 19.4 t ADT: 94

LRD FAIR RD

Fair

Over: BR EAST RIVER

1.5M W JCT STH 57, Brown, WI

Built 1952 Load: 19.4 t ADT: 94

LRD OVERLAND RD

Fair

Over: BR TROUT CREEK

1.6M N JCT CTH J, Brown, WI

Built 1955 Load: 19.4 t ADT: 94

CTH U

Fair

Over: WAUMANDEE CREEK

2.3M N JCT CTH E, Buffalo, WI

Built 1962 Load: 19.4 t ADT: 596

LRD YAEGER VALLEY

Fair

Over: BR WAUMANDEE CREEK

1.0M W JCT STH 88, Buffalo, WI

Built 1922 Load: 19.4 t ADT: 58

LRD OLD STH 35 (DE

Fair

Over: MISSISSIPPI RIVER TRIB

0.2M E JCT STH 35, Buffalo, WI

Built 1926 Load: 19.4 t ADT: 700

LRD SOBOTTA RD (DE

Fair

Over: SWINNS VALLEY CREEK

0.1M N JCT CTH C, Buffalo, WI

Built 1968 Load: 19.4 t ADT: 20

CTH OO

Fair

Over: ROSE VALLEY CREEK

1.3M W JCT STH 35, Buffalo, WI

Built 1960 Load: 19.4 t ADT: 1,074

CTH MM

Fair

Over: WOLF RIVER

0.9 M E CTH H, Chippewa, WI

Built 1962 Load: 19.4 t ADT: 440

STH 40 / MAIN ST

Fair

Over: DUNCAN CREEK

0.6M N JCT USH 53 TO N, Chippewa, WI

Built 1942 Load: 19.4 t ADT: 10,130

CTH O

Fair

Over: LITTLE DRYWOOD CREEK

0.7 M E 210TH STREET, Chippewa, WI

Built 1932 Load: 19.4 t ADT: 1,215

LRD 230TH AVENUE

Fair

Over: DUNCAN CREEK

0.4 M E 83RD STREET, Chippewa, WI

Built 1925 Load: 19.4 t ADT: 135

LRD BRIDGE RD

Fair

Over: BLACK RIVER

1.4M E JCT CTH O, Clark, WI

Built 1981 Load: 19.4 t ADT: 58

LRD CENTER ROAD

Fair

Over: POPPLE RIVER

1.6M W JCT STH 13, Clark, WI

Built 1961 Load: 19.4 t ADT: 58

LRD BROEK RD

Fair

Over: N FK EAU CLAIRE RIVER

2.4M W JCT CTH M, Clark, WI

Built 1955 Load: 19.4 t ADT: 58

LRD POPPLE RIVER R

Fair

Over: S. FK. POPPLE RIVER

1.7M W JCT CTH Q, Clark, WI

Built 1929 Load: 19.4 t ADT: 58

LRD W SPENCER RD

Fair

Over: YELLOW RIVER

1.7M W JCT STH 98, Clark, WI

Built 1923 Load: 19.4 t ADT: 58

LRD TWENTY SIX RD

Fair

Over: YELLOW RIVER

1.1M E JCT CTH Y, Clark, WI

Built 1975 Load: 19.4 t ADT: 58

LRD TREE RD

Fair

Over: N BR ONEILL CREEK

0.6M E JCT CTH K, Clark, WI

Built 1977 Load: 19.4 t ADT: 58

LRD GRANTON RD

Fair

Over: S BR ONEILL CREEK

0.6M W JCT CTH K, Clark, WI

Built 1976 Load: 19.4 t ADT: 58

LRD MAPLE RD

Fair

Over: BR E FK BLACK RIVER

3.6M E JCT CTH W, Clark, WI

Built 1974 Load: 19.4 t ADT: 58

CTH V

Fair

Over: SPRING CREEK INLET

0.3M E JCT STH 113, Columbia, WI

Built 1958 Load: 19.4 t ADT: 1,400

STH 16

Fair

Over: N BR CRAWFISH RIVER

3.7M E JCT CTH B TO E, Columbia, WI

Built 1936 Load: 19.4 t ADT: 4,300

CTH DG

Fair

Over: N BR CRAWFISH RIVER

1.0M N JCT CTH D, Columbia, WI

Built 1958 Load: 19.4 t ADT: 139

CTH A

Fair

Over: N BR CRAWFISH RIVER

0.7M N JCT STH 16, Columbia, WI

Built 1928 Load: 19.4 t ADT: 630

CTH C

Fair

Over: SUGAR CREEK

6.4M E JCT STH 35, Crawford, WI

Built 1953 Load: 19.4 t ADT: 503

STH 179

Fair

Over: OTTER CREEK

2.4M E JCT STH 27, Crawford, WI

Built 1967 Load: 19.4 t ADT: 560

STH 35 NB

Fair

Over: DRAINAGE WAY

1.1 MI N JCT LIMERY RD, Crawford, WI

Built 1938 Load: 19.4 t ADT: 2,900

LRD FORTON ST

Fair

Over: YAHARA RIVER

0.2M N JCT USH 51, Dane, WI

Built 1954 Load: 19.4 t ADT: 420

CTH J

Fair

Over: SUGAR RIVER

1.0M N JCT CTH PD, Dane, WI

Built 1958 Load: 19.4 t ADT: 528

STH 19-STH 113

Fair

Over: SIX MILE CREEK

0.7M E JCT STH 113 TO N, Dane, WI

Built 1960 Load: 19.4 t ADT: 14,300

LRD WILKENSON RD

Fair

Over: DUNLAP CREEK

1.8M E JCT STH 78, Dane, WI

Built 1927 Load: 19.4 t ADT: 47

CTH MM

Fair

Over: ROCK RIVER

2.7M E JCT CTH R, Dodge, WI

Built 1953 Load: 19.4 t ADT: 310

Showing 3,201-3,250 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.