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 MANITOWOC ST

Fair

Over: BR MUD CREEK

0.3M W JCT STH 32, Manitowoc, WI

Built 1968 Load: 16.2 t ADT: 94

CTH C

Fair

Over: W BR LT EAU PLEINE RIVER

0.8M W JCT CTH F, Marathon, WI

Built 1930 Load: 16.2 t ADT: 1,465

CTH B

Fair

Over: BUNDY CREEK

4.0M E JCT CTH W, Marinette, WI

Built 1958 Load: 16.2 t ADT: 970

LRD ST PAUL RD

Fair

Over: THE OUTLET

1.2M S JCT CTH W, Marinette, WI

Built 1930 Load: 16.2 t ADT: 110

LRD W HAMPTON AVE

Fair

Over: MILWAUKEE RIVER

0.2M E JCT STH 57, Milwaukee, WI

Built 1967 Load: 16.2 t ADT: 14,700

CTH N

Fair

Over: LITTLE LEMONWEIR CREEK

2.7M S JCT CTH A, Monroe, WI

Built 1938 Load: 16.2 t ADT: 250

LRD GROVER RD

Fair

Over: ALLEN CREEK

1.8M N JCT USH 12, Monroe, WI

Built 1976 Load: 16.2 t ADT: 94

LRD ICEBOX RD

Fair

Over: LITTLE LA CROSSE RIVER

1.3M W JCT STH 27, Monroe, WI

Built 1945 Load: 16.2 t ADT: 23

LRD E BIG LAKE LOO

Fair

Over: EAGLE RIVER

2.7M E JCT USH 45, Oneida, WI

Built 1969 Load: 16.2 t ADT: 221

CTH O

Fair

Over: BEAR CREEK

1.3M W JCT CTH A, Outagamie, WI

Built 1962 Load: 16.2 t ADT: 1,230

CTH F

Fair

Over: BEAR CREEK

0.4M E JCT CTH D, Outagamie, WI

Built 1964 Load: 16.2 t ADT: 325

CTH A

Fair

Over: MACKVILLE CREEK

0.8M N JCT CTH O, Outagamie, WI

Built 1938 Load: 16.2 t ADT: 5,757

LRD WEGE ROAD

Fair

Over: MACKVILLE CREEK

1.3M W JCT STH 47, Outagamie, WI

Built 1960 Load: 16.2 t ADT: 94

USH 63

Fair

Over: LITTLE TRIMBELLE RIVER

0.2M N JCT CTH K, Pierce, WI

Built 1952 Load: 16.2 t ADT: 4,100

CTH D

Fair

Over: BASSWOOD CREEK

1.2M E JCT CTH A, Richland, WI

Built 1951 Load: 16.2 t ADT: 196

CTH F

Fair

Over: KNAPP CREEK

0.4M S JCT CTH U, Richland, WI

Built 1958 Load: 16.2 t ADT: 185

CTH F

Fair

Over: BEEBE HOLLOW CREEK

0.3M N JCT CTH U, Richland, WI

Built 1959 Load: 16.2 t ADT: 120

LRD NELSON RD

Fair

Over: SUGAR RIVER

2.6M S JCT STH 81, Rock, WI

Built 1958 Load: 16.2 t ADT: 117

CTH Y

Fair

Over: PLUM CREEK

0.1M W JCT CTH G, Sauk, WI

Built 1973 Load: 16.2 t ADT: 175

LRD STOUT RD

Fair

Over: CROSSMAN CREEK

1.0M N JCT STH 33, Sauk, WI

Built 1929 Load: 16.2 t ADT: 136

LRD CTH PP

Fair

Over: MULLET RIVER

0.3M W JCT CTH PPP, Sheboygan, WI

Built 1936 Load: 16.2 t ADT: 1,040

LRD WILLOW RD

Fair

Over: MULLET RIVER

0.3M S JCT CTH PP, Sheboygan, WI

Built 1950 Load: 16.2 t ADT: 47

LRD W EVERGREEN DR

Fair

Over: BLACK RIVER

0.1M E JCT CTH EE, Sheboygan, WI

Built 1964 Load: 16.2 t ADT: 23

LRD BROADWAY ST

Fair

Over: ONION RIVER

0.5M S JCT STH 32, Sheboygan, WI

Built 1936 Load: 16.2 t ADT: 3,100

LRD PERKINS ST

Fair

Over: BLACK RIVER

0.1M S JCT STH 64, Taylor, WI

Built 1964 Load: 16.2 t ADT: 3,997

LRD 8TH AVE

Fair

Over: N FK EAU CLAIRE RIVER

1.3M N CLARK CO LINE, Taylor, WI

Built 1930 Load: 16.2 t ADT: 87

LRD CHURCH HILL RD

Fair

Over: NORTH CREEK

2.7M N JCT STH 95, Trempealeau, WI

Built 1975 Load: 16.2 t ADT: 58

LRD WHALEN RD

Fair

Over: S FK BEAVER CREEK

0.1M E JCT CTH D, Trempealeau, WI

Built 1972 Load: 16.2 t ADT: 205

LRD KULASH RD

Fair

Over: GREENWOOD VALLEY CREEK

0.1M S JCT STH 80, Vernon, WI

Built 1935 Load: 16.2 t ADT: 47

LRD SOUTH JUG CREE

Fair

Over: JUG CREEK

0.5M E JCT STH 131, Vernon, WI

Built 1950 Load: 16.2 t ADT: 47

LRD HORNBY HOLLOW

Fair

Over: BR HORNBY CREEK

1.8M E JCT CTH N, Vernon, WI

Built 1960 Load: 16.2 t ADT: 47

LRD TEMPERANCE TRA

Fair

Over: LITTLE TURTLE CREEK

0.3M S JCT CTH X, Walworth, WI

Built 1973 Load: 16.2 t ADT: 117

LRD LAKESIDE RD.

Fair

Over: TOTOGATIC RIVER

0.8M N JCT USH 53, Washburn, WI

Built 1926 Load: 16.2 t ADT: 23

LRD PLEASANT VALLE

Fair

Over: BR CEDAR CREEK

0.3M E JCT CTH M, Washington, WI

Built 1930 Load: 16.2 t ADT: 58

LRD 29TH DR

Fair

Over: AUSTIN CREEK

1.2M N JCT CTH A, Waushara, WI

Built 1921 Load: 16.2 t ADT: 225

LRD POLISH RD

Fair

Over: ROCKY CREEK

0.7M N JCT CTH C, Wood, WI

Built 1945 Load: 16.2 t ADT: 100

IRR BIA RTE 51

Fair

Over: SO. BRANCH OCONTO RIVER

0.3 KM NORTH OF BIA RTE 7, Menominee, WI

Built 1977 Load: 17.0 t ADT: 70

CTH A

Fair

Over: RED CEDAR RIVER

0.5M W JCT CTH I TO S, Barron, WI

Built 1980 Load: 17.8 t ADT: 1,635

CTH C

Fair

Over: SPRING CREEK

2.5M E JCT CTH NN, Barron, WI

Built 1948 Load: 17.8 t ADT: 1,199

LRD 10 1/2 AVE

Fair

Over: TURTLE CREEK

2.1M W JCT CTH P, Barron, WI

Built 1963 Load: 17.8 t ADT: 94

LRD 7TH AVE

Fair

Over: HAY RIVER

0.9M W JCT CTH F, Barron, WI

Built 1977 Load: 17.8 t ADT: 47

CTH U

Fair

Over: E BR UPPER PINE CREEK

0.6M N JCT CTH A, Barron, WI

Built 1966 Load: 17.8 t ADT: 741

STH 29 & NE & SE R

Fair

Over: BR LANCASTER BROOK

0.2M E JCT CTH FF, Brown, WI

Built 1955 Load: 17.8 t ADT: 33,800

LRD RYAN RD

Fair

Over: EAST RIVER

1.2M W JCT STH 32, Brown, WI

Built 1959 Load: 17.8 t ADT: 200

LRD WEBER RD

Fair

Over: EAST RIVER

1.3M S JCT STH 57, Brown, WI

Built 1964 Load: 17.8 t ADT: 94

LRD MARIBEL RD

Fair

Over: NESHOTA RIVER

0.8M N JCT CTH KB, Brown, WI

Built 1971 Load: 17.8 t ADT: 94

CTH J

Fair

Over: BUFFALO RIVER

0.1M W JCT STH 37, Buffalo, WI

Built 1956 Load: 17.8 t ADT: 217

CTH E

Fair

Over: LITTLE WAUMANDEE CREEK

1.0M E JCT STH 88, Buffalo, WI

Built 1968 Load: 17.8 t ADT: 813

CTH BB

Fair

Over: BUFFALO RIVER

0.3M S JCT USH 10, Buffalo, WI

Built 1969 Load: 17.8 t ADT: 542

LRD EBERSOLD RD (D

Fair

Over: PINE CREEK

0.6M N JCT STH 37, Buffalo, WI

Built 1975 Load: 17.8 t ADT: 10

Showing 3,051-3,100 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.