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 W (DEAD END)

Structurally Deficient

Over: TRIB TO PIPE CREEK

0.5M W JCT USH 151, Fond du Lac, WI

Built 1981 Load: 19.4 t ADT: 480

LRD TOWN LINE RD (

Structurally Deficient

Over: ROGERS BRANCH

3.7M S JCT USH 18, Grant, WI

Built 1910 Load: 19.4 t ADT: 50

CTH HK

Structurally Deficient

Over: SPRING CREEK

0.4M N JCT CTH P, Green, WI

Built 1959 Load: 19.4 t ADT: 105

CTH O

Structurally Deficient

Over: TRIBUTARY BARABOO RIVER

0.2M E BROCKMAN RD, Juneau, WI

Built 1925 Load: 19.4 t ADT: 1,035

CTH H

Structurally Deficient

Over: BR KEWAUNEE RIVER

1.6M N JCT STH 54, Kewaunee, WI

Built 1958 Load: 19.4 t ADT: 141

LRD CARR FACTORY R

Structurally Deficient

Over: BR GALENA RIVER

1.1M N JCT STH 11, Lafayette, WI

Built 1950 Load: 19.4 t ADT: 88

LRD W PUDDLE DOCK

Structurally Deficient

Over: DOUGHERTY CREEK

0.7M N JCT STH 81, Lafayette, WI

Built 1938 Load: 19.4 t ADT: 88

STH 55

Structurally Deficient

Over: NINE MILE CREEK

5.7M N JCT STH 64, Langlade, WI

Built 1978 Load: 19.4 t ADT: 620

LRD RANGE LINE RD

Structurally Deficient

Over: BLACK BROOK

2.0M W JCT CTH H, Langlade, WI

Built 1970 Load: 19.4 t ADT: 70

LRD WOODLAND DR

Structurally Deficient

Over: BR LITTLE RIB RIVER

1.7M E JCT CTH O, Marathon, WI

Built 1929 Load: 19.4 t ADT: 110

LRD ASPEN RD

Structurally Deficient

Over: SCOTCH CREEK

0.8M N JCT CTH H, Marathon, WI

Built 1968 Load: 19.4 t ADT: 271

LRD N 51ST ST

Structurally Deficient

Over: BEAVER CREEK

0.4M N JCT STH 100, Milwaukee, WI

Built 1968 Load: 19.4 t ADT: 2,900

CTH WW

Structurally Deficient

Over: FOUR MILE CREEK

0.75M W. CTH FF, Portage, WI

Built 2007 Load: 19.4 t ADT: 565

CTH II

Structurally Deficient

Over: BEAR CREEK

1.1M N JCT CTH PP, Portage, WI

Built 1975 Load: 19.4 t ADT: 107

CTH D

Structurally Deficient

Over: N FK SPIRIT RIVER

1.0M N JCT STH 86, Price, WI

Built 1965 Load: 19.4 t ADT: 196

LRD W OVERSON RD

Structurally Deficient

Over: GOOSE LAKE BRANCH CANAL

0.4M S JCT CTH K, Racine, WI

Built 1964 Load: 19.4 t ADT: 94

LRD PICKEL RD

Structurally Deficient

Over: BR NARROWS CREEK

0.1M E JCT CTH K, Sauk, WI

Built 1950 Load: 19.4 t ADT: 155

LRD BASS RD

Structurally Deficient

Over: HAY CREEK

0.1M W JCT CTH K, Sauk, WI

Built 1930 Load: 19.4 t ADT: 118

LRD THORNAPPLE GRA

Structurally Deficient

Over: THORNAPPLE RIVER

6.7M N JCT CTH J, Sawyer, WI

Built 1950 Load: 19.4 t ADT: 22

CTH C

Structurally Deficient

Over: BIG RIB RIVER

3.0M N JCT CTH M, Taylor, WI

Built 1956 Load: 19.4 t ADT: 1,127

LRD GRAHL DR

Structurally Deficient

Over: E BR LITTLE BLACK RIVER

2.1M N JCT STH 64, Taylor, WI

Built 1972 Load: 19.4 t ADT: 65

LRD CENTER AVE

Structurally Deficient

Over: BLACK RIVER

2.3M N JCT STH 64, Taylor, WI

Built 1955 Load: 19.4 t ADT: 94

LRD RUBY DR

Structurally Deficient

Over: DEER CREEK

1.3M S JCT CTH A, Taylor, WI

Built 1970 Load: 19.4 t ADT: 58

LRD ROBIN DR

Structurally Deficient

Over: DEER CREEK

1.9M S JCT CTH A, Taylor, WI

Built 1970 Load: 19.4 t ADT: 58

CTH F

Structurally Deficient

Over: N FK EAU CLAIRE RIVER

5.8M E JCT STH 73, Taylor, WI

Built 1960 Load: 19.4 t ADT: 256

STH 162

Structurally Deficient

Over: BR COON CREEK

0.6M N JCT USH 14 TO E, Vernon, WI

Built 1927 Load: 19.4 t ADT: 650

LRD OVERVIEW DR

Structurally Deficient

Over: BUTLER DITCH

0.3M E JCT LILLY RD, Waukesha, WI

Built 1988 Load: 19.4 t ADT: 2,837

LRD APACHE AVE

Structurally Deficient

Over: ADLER CREEK

0.9M W JCT CTH H, Winnebago, WI

Built 1927 Load: 19.4 t ADT: 35

CTH G BEGLEY ST

Structurally Deficient

Over: BLACK RIVER

0.3M W JCT STH 73, Clark, WI

Built 1938 Load: 21.1 t ADT: 1,856

CTH M

Structurally Deficient

Over: FOND DU LAC RIVER

0.9M N JCT ROSE ELD RD, Fond du Lac, WI

Built 1927 Load: 21.1 t ADT: 1,100

LRD SKINNER HOLLOW

Structurally Deficient

Over: SKINNER CREEK

0.6M N JCT STH 81, Green, WI

Built 1936 Load: 21.1 t ADT: 105

CTH X

Structurally Deficient

Over: LITTLE OXBO CREEK

0.3M N JCT STH 64, Lincoln, WI

Built 1952 Load: 21.1 t ADT: 420

LRD S 6TH ST

Structurally Deficient

Over: BR OAK CREEK

0.4M N JCT DREXEL AVE, Milwaukee, WI

Built 1970 Load: 21.1 t ADT: 3,300

LRD SMYTH RD

Structurally Deficient

Over: N BR OCONTO RIVER

3.2M E JCT CTH F, Oconto, WI

Built 1928 Load: 21.1 t ADT: 50

SOUTH 10TH AVE

Structurally Deficient

Over: TARR CREEK

S. 10 St. over Tarr Creek, Monroe, WI

Built 1985 Load: 21.4 t ADT: 2,000

LRD ROBELIA RD (DE

Structurally Deficient

Over: BR BEAR CREEK

0.1M E JCT CTH V, Buffalo, WI

Built 1979 Load: 22.7 t ADT: 10

LRD MOTTS ROAD (DE

Structurally Deficient

Over: TAMARACK RIVER

0.1M W JCT CTH J, Buffalo, WI

Built 1982 Load: 22.7 t ADT: 20

LRD KINGTON ROAD

Structurally Deficient

Over: NELSON CREEK

1.2M S JCT CTH K, Clark, WI

Built 1956 Load: 22.7 t ADT: 92

LRD STERK RD

Structurally Deficient

Over: UNION PACIFIC RR

1.1M S JCT CTH E, Columbia, WI

Built 1930 Load: 22.7 t ADT: 67

CTH A

Structurally Deficient

Over: SAUNDERS CREEK

1.6M S JCT USH 51, Dane, WI

Built 1927 Load: 22.7 t ADT: 1,300

CTH BB

Structurally Deficient

Over: KOSHKONONG CREEK

1.9M E JCT CTH N, Dane, WI

Built 1914 Load: 22.7 t ADT: 1,500

CTH JJ

Structurally Deficient

Over: VERMONT CREEK

0.2M W JCT STH 78, Dane, WI

Built 1958 Load: 22.7 t ADT: 314

LRD 810TH ST.

Structurally Deficient

Over: CRANBERRY CREEK

0.5M S JCT STH 85, Dunn, WI

Built 1919 Load: 22.7 t ADT: 108

LRD FOREST AVE

Structurally Deficient

Over: E BR FOND DU LAC RIVER

1.8M NW JCT I-41 & S. MIL, Fond du Lac, WI

Built 1965 Load: 22.7 t ADT: 1,900

LRD AIRPORT RD

Structurally Deficient

Over: LITTLE SUGAR RIVER

2.3M E JCT STH 69, Green, WI

Built 1930 Load: 22.7 t ADT: 105

CTH KB

Structurally Deficient

Over: BLACK CREEK

0.1M E JCT CTH V, Kewaunee, WI

Built 1946 Load: 22.7 t ADT: 975

LRD 18TH ST

Structurally Deficient

Over: BR BIG RIB RIVER

1.1M N JCT CTH U, Marathon, WI

Built 1929 Load: 22.7 t ADT: 75

CTH N

Structurally Deficient

Over: LITTLE LEMONWEIR RIVER

1.4M S JCT CTH A, Monroe, WI

Built 1940 Load: 22.7 t ADT: 250

CTH O

Structurally Deficient

Over: S FK JUMP RIVER

7.5M E JCT USH 8, Price, WI

Built 1959 Load: 22.7 t ADT: 112

LRD PETERS RD

Structurally Deficient

Over: BR LITTLE TURTLE CREEK

4.4M N JCT STH 67, Walworth, WI

Built 1956 Load: 22.7 t ADT: 235

Showing 14,751-14,800 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.