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

STH 80

Fair

Over: S BR BARABOO RIVER

3.6M N JCT CTH V, Vernon, WI

Built 1969 Load: 22.7 t ADT: 1,300

CTH N

Fair

Over: BR RUSH CREEK

1.1M S JCT STH 82, Vernon, WI

Built 1966 Load: 22.7 t ADT: 217

LRD BLOOMINGDALE R

Fair

Over: W FK KICKAPOO RIVER

0.2M W JCT CTH S, Vernon, WI

Built 1891 Load: 22.7 t ADT: 205

LRD WEBER RD

Fair

Over: BR HORNBY HOLLOW CREEK

2.4M N JCT STH 82, Vernon, WI

Built 1932 Load: 22.7 t ADT: 47

LRD TAINTER HOLLOW

Fair

Over: BR TAINTER CREEK

3.3M S JCT STH 27, Vernon, WI

Built 1940 Load: 22.7 t ADT: 47

CTH T

Fair

Over: SPRING VALLEY CREEK

2.3M N JCT USH 14, Vernon, WI

Built 1963 Load: 22.7 t ADT: 217

CTH C

Fair

Over: CMSTPP RR

0.4M S JCT CTH X, Walworth, WI

Built 1960 Load: 22.7 t ADT: 1,500

CTH H

Fair

Over: COMO CREEK

0.3M N JCT CTH NN, Walworth, WI

Built 1941 Load: 22.7 t ADT: 9,000

LRD TOWN LINE RD

Fair

Over: BR LITTLE TURTLE CREEK

0.6M E JCT CTH C, Walworth, WI

Built 1973 Load: 22.7 t ADT: 162

LRD PARK TERRACE

Fair

Over: TURTLE CREEK

0.3M N JCT STH 11, Walworth, WI

Built 1931 Load: 22.7 t ADT: 1,100

STH 77

Fair

Over: SOO LINE

3.1M E JCT CTH G, Washburn, WI

Built 1958 Load: 22.7 t ADT: 1,900

LRD GREEN VALLEY R

Fair

Over: YELLOW RIVER

2.1M W JCT STH 63, Washburn, WI

Built 1976 Load: 22.7 t ADT: 94

CTH H

Fair

Over: N BR MILWAUKEE RIVER

2.5M E JCT STH 144, Washington, WI

Built 1950 Load: 22.7 t ADT: 2,300

USH 18

Fair

Over: BARK RIVER

3.6 MI E JCT CTH BB, Waukesha, WI

Built 1924 Load: 22.7 t ADT: 7,700

IH 43 NB

Fair

Over: CN RR

5.2 MI N JCT STH 20, Waukesha, WI

Built 1971 Load: 22.7 t ADT: 13,450

CTH H

Fair

Over: AUSTIN CREEK

0.4M E JCT CTH I, Waushara, WI

Built 1956 Load: 22.7 t ADT: 270

LRD OREGON ST

Fair

Over: FOX RIVER

1.5M N JCT CTH I, Winnebago, WI

Built 1956 Load: 22.7 t ADT: 8,500

LRD OREGON ST

Fair

Over: FOX RIVER

1.5M N JCT CTH I, Winnebago, WI

Built 1956 Load: 22.7 t ADT: 8,500

CTH H

Fair

Over: ALDER CREEK

4.4M S JCT CTH AH, Winnebago, WI

Built 1932 Load: 22.7 t ADT: 922

LRD 37TH AVE

Fair

Over: ADLER CREEK

0.2M S JCT CTH HH, Winnebago, WI

Built 1926 Load: 22.7 t ADT: 76

STH 54

Fair

Over: YELLOW RIVER

0.6M E JCT CTH X TO S, Wood, WI

Built 1964 Load: 22.7 t ADT: 920

LRD NORTH RD

Fair

Over: BR LITTLE EAU PLEINE R

0.9M N JCT CTH Y, Wood, WI

Built 1970 Load: 22.7 t ADT: 30

CTH C

Fair

Over: ROCKY CREEK

1.4M E JCT STH 13, Wood, WI

Built 1972 Load: 22.7 t ADT: 510

IRR BIA RTE 21

Fair

Over: WEST BRANCH RED RIVER

20 KM NW OF GRESHAM, Shawano, WI

Built 1994 Load: 22.9 t ADT: 450

FR121

Fair

Over: YELLOW RIVER

0.1 M. E. JCT CTH G, Taylor, WI

Built 1969 Load: 23.0 t ADT: 50

IRR BIA RTE 21

Fair

Over: RED RIVER

13 KM NE OF BOWLER, Menominee, WI

Built 1979 Load: 23.1 t ADT: 150

STH 13

Fair

Over: FOURTEEN MILE CREEK

6.3M N JCT CTH C, Adams, WI

Built 1957 Load: 24.3 t ADT: 5,800

CTH SS

Fair

Over: BEAR CREEK

0.1M N JCT CTH V, Barron, WI

Built 1931 Load: 24.3 t ADT: 4,277

LRD 15TH AVE

Fair

Over: HAY RIVER

0.5M E JCT CTH P, Barron, WI

Built 1969 Load: 24.3 t ADT: 58

LRD 14TH AVE

Fair

Over: VERMILLION RIVER

0.2M E JCT USH 8, Barron, WI

Built 1967 Load: 24.3 t ADT: 47

LRD 6TH AVE

Fair

Over: E BR UPPER PINE CREEK

0.6M E JCT CTH O, Barron, WI

Built 1989 Load: 24.3 t ADT: 23

LRD MEMORIAL DR

Fair

Over: QUADERERS CREEK

0.2M S JCT USH 8, Barron, WI

Built 1930 Load: 24.3 t ADT: 2,561

LRD 5TH AVENUE

Fair

Over: BR S FK HAY RIVER

0.6M W JCT CTH K, Barron, WI

Built 1981 Load: 24.3 t ADT: 47

CTH A

Fair

Over: BR SIOUX CREEK

0.9M W JCT CTH I TO N, Barron, WI

Built 1972 Load: 24.3 t ADT: 425

LRD BAYFIELD LINE

Fair

Over: MUSKEG CREEK

1.6M E JCT CTH B, Bayfield, WI

Built 1984 Load: 24.3 t ADT: 117

LRD BIRCH POINT RD

Fair

Over: NAMEKAGON RIVER

3.0M N JCT CTH M, Bayfield, WI

Built 1958 Load: 24.3 t ADT: 35

STH RAMP STH 54 WB

Fair

Over: LAND

3.2M E JCT USH 41 TO S, Brown, WI

Built 1973 Load: 24.3 t ADT: 1,800

CTH EA/S HURON RD.

Fair

Over: SPRING CREEK TRIBUTARY

1.2 MI N JCT STH 29, Brown, WI

Built 2012 Load: 24.3 t ADT: 2,200

CTH G

Fair

Over: BRANCH RIVER

1.9M N JCT CTH W, Brown, WI

Built 1957 Load: 24.3 t ADT: 1,400

LRD CIRCLE DR

Fair

Over: DUTCHMANS CREEK

0.6M N JCT CTH AAA, Brown, WI

Built 1974 Load: 24.3 t ADT: 3,417

LRD HILL RD

Fair

Over: BRANCH RIVER

0.6M E JCT CTH G, Brown, WI

Built 1909 Load: 24.3 t ADT: 94

LRD BROOKSIDE RD

Fair

Over: BR SUAMICO RIVER

0.4M S JCT CTH B, Brown, WI

Built 1960 Load: 24.3 t ADT: 257

CTH G

Fair

Over: BOWER CREEK

200' N, NILES RD, Brown, WI

Built 1973 Load: 24.3 t ADT: 14,900

LRD TOWN HALL RD

Fair

Over: BR SUMACIO RIVER

0.4M E JCT STH 32, Brown, WI

Built 1975 Load: 24.3 t ADT: 58

LRD BOWER CREEK RD

Fair

Over: BR BOWER CREEK

0.8M S JCT CTH V, Brown, WI

Built 1970 Load: 24.3 t ADT: 1,000

CTH E

Fair

Over: WAUMANDEE CREEK

0.3M E JCT CTH U, Buffalo, WI

Built 1957 Load: 24.3 t ADT: 423

CTH KK

Fair

Over: BUFFALO RIVER

0.3M N JCT STH 37, Buffalo, WI

Built 1981 Load: 24.3 t ADT: 130

STH 54

Fair

Over: BN RR

0.6M E MINN STATE LINE, Buffalo, WI

Built 1941 Load: 24.3 t ADT: 10,200

LRD BAERTSCH RD

Fair

Over: BR EAGLE CREEK

0.7M N JCT STH 95, Buffalo, WI

Built 1930 Load: 24.3 t ADT: 23

LRD A YARINGTON RD

Fair

Over: SPRING CREEK

0.8M E JCT STH 25, Buffalo, WI

Built 1977 Load: 24.3 t ADT: 10

Showing 3,701-3,750 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.