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 F

Fair

Over: JOHNNYCAKE HOLLOW CREEK

0.2M E JCT CTH ZZ, Vernon, WI

Built 1971 Load: 19.4 t ADT: 238

LRD TOWN RD

Fair

Over: MILWAUKEE RIVER

0.3M E JCT USH 45, Washington, WI

Built 1917 Load: 19.4 t ADT: 235

LRD NORWEGIAN RD

Fair

Over: ASHIPPUN RIVER

0.3M N JCT CTH CW, Waukesha, WI

Built 1964 Load: 19.4 t ADT: 94

CTH E

Fair

Over: S BR LITTLE WOLF RIVER

4.8M N JCT CTH K, Waupaca, WI

Built 1953 Load: 19.4 t ADT: 1,679

CTH H

Fair

Over: MUD CREEK

2.1M E JCT STH 49, Waushara, WI

Built 1956 Load: 19.4 t ADT: 650

CTH X

Fair

Over: SMALL CREEK

2.0M E JCT CTH XX, Waushara, WI

Built 1953 Load: 19.4 t ADT: 1,500

CTH A

Fair

Over: PINE RIVER

3.9M E JCT CTH K, Waushara, WI

Built 1963 Load: 19.4 t ADT: 1,600

LRD TOWN HALL RD

Fair

Over: MOCCASIN CREEK

1.4M E JCT CTH F, Wood, WI

Built 1978 Load: 19.4 t ADT: 94

FR 2134

Fair

Over: PESHTIGO RIVER

7.5 MI E OF JCT CTH H, Forest, WI

Built 1949 Load: 19.8 t ADT: 50

FR144

Fair

Over: S.F. FLAMBEAU RIVER

3.9 M. N. JCT STH 70, Price, WI

Built 1967 Load: 19.8 t ADT: 360

FR 2131

Fair

Over: PESHTIGO RIVER

4.6 MI E OF JCT USH 8, Forest, WI

Built 1975 Load: 20.4 t ADT: 50

STH 13

Fair

Over: MARENGO RIVER

1.6M N JCT CTH C, Ashland, WI

Built 1971 Load: 21.1 t ADT: 2,800

CTH K

Fair

Over: S FK HAY RIVER

1.8M S JCT CTH A, Barron, WI

Built 1961 Load: 21.1 t ADT: 523

LRD 25 1/2 STREET

Fair

Over: SILVER CREEK

.3M N OF 18 1/2 AVENUE, Barron, WI

Built 1945 Load: 21.1 t ADT: 23

LRD 16TH AVE

Fair

Over: HAY RIVER

0.6M E JCT CTH P, Barron, WI

Built 1970 Load: 21.1 t ADT: 94

LRD 12TH AVE

Fair

Over: MOOSE EAR CREEK

3.3M W JCT CTH W, Barron, WI

Built 1972 Load: 21.1 t ADT: 94

LRD 12TH ST

Fair

Over: BR DORITS CREEK

6.2M N JCT CTH A, Barron, WI

Built 1950 Load: 21.1 t ADT: 47

LRD 19TH ST

Fair

Over: BR RED CEDAR RIVER

3.3M N JCT CTH W, Barron, WI

Built 1940 Load: 21.1 t ADT: 205

LRD 13 1/4 STREET

Fair

Over: BR LOWER PINE CREEK

0.1M N JCT STH 25, Barron, WI

Built 1930 Load: 21.1 t ADT: 47

LRD 5TH AVENUE

Fair

Over: SIOUX CREEK

1.4M W JCT CTH I, Barron, WI

Built 1920 Load: 21.1 t ADT: 82

LRD 16TH ST

Fair

Over: BARKER CREEK

0.2M S JCT STH 48, Barron, WI

Built 1945 Load: 21.1 t ADT: 47

LRD LEONARD SCHOOL

Fair

Over: NAMEKAGON RIVER

0.4M W JCT USH 63, Bayfield, WI

Built 1928 Load: 21.1 t ADT: 24

LRD PARKVIEW RD

Fair

Over: ASHWAUBENON CREEK

0.4M E JCT USH 41, Brown, WI

Built 1964 Load: 21.1 t ADT: 900

STH 35

Fair

Over: ROSE VALLEY CREEK

2.3M N JCT CTH O, Buffalo, WI

Built 1958 Load: 21.1 t ADT: 1,800

LRD KAMROWSKI RD

Fair

Over: MISSISSIPPI RIVER TRIB

0.8M W JCT STH 35, Buffalo, WI

Built 1971 Load: 21.1 t ADT: 205

CTH F

Fair

Over: N BR LITTLE BEAR CREEK

0.2M W JCT CTH JJ, Buffalo, WI

Built 1974 Load: 21.1 t ADT: 227

CTH Q

Fair

Over: TILDEN CREEK

0.4 M N 102ND AVENUE, Chippewa, WI

Built 1947 Load: 21.1 t ADT: 715

LRD 40TH AVENUE

Fair

Over: S FK PAINT CREEK

0.2 M E 210TH STREET, Chippewa, WI

Built 1935 Load: 21.1 t ADT: 595

CTH N

Fair

Over: BLACK RIVER

0.6M E JCT CTH O, Clark, WI

Built 1948 Load: 21.1 t ADT: 394

CTH N

Fair

Over: E FK POPPLE RIVER

0.8M W JCT CTH Q, Clark, WI

Built 1954 Load: 21.1 t ADT: 777

LRD TIEMAN AVE

Fair

Over: GOGGLE CREEK

0.9M N JCT CTH X, Clark, WI

Built 1974 Load: 21.1 t ADT: 58

LRD HILINE AVE

Fair

Over: S BR YELLOW RIVER

2.7M N JCT USH 10, Clark, WI

Built 1976 Load: 21.1 t ADT: 116

LRD SOUTH MOUND RD

Fair

Over: MEADOWS CREEK

1.2M W JCT CTH G, Clark, WI

Built 1963 Load: 21.1 t ADT: 58

LRD FAIRGROUND AVE

Fair

Over: CUNNINGHAM CREEK

1.0M E JCT STH 73, Clark, WI

Built 1975 Load: 21.1 t ADT: 87

CTH J

Fair

Over: ROWAN CREEK

0.9M N JCT CTH CS TO E, Columbia, WI

Built 1967 Load: 21.1 t ADT: 723

LRD BLACKHAWK AVE

Fair

Over: MARAIS DE ST FRIOLE

0.5M W JCT STH 35, Crawford, WI

Built 1955 Load: 21.1 t ADT: 1,300

LRD CHILDS HOLLOW

Fair

Over: RICHLAND CREEK

0.1M W JCT USH 61, Crawford, WI

Built 1930 Load: 21.1 t ADT: 205

CTH N

Fair

Over: KOSHKONONG CREEK

1.0M N JCT CTH TT, Dane, WI

Built 1957 Load: 21.1 t ADT: 6,200

CTH U

Fair

Over: W BR SUGAR RIVER

1.3M N JCT CTH A, Dane, WI

Built 1961 Load: 21.1 t ADT: 500

CTH J

Fair

Over: BR ELVERS CREEK

0.8 M S JCT CTH JJ, Dane, WI

Built 1961 Load: 21.1 t ADT: 501

LRD SCHERBEL RD

Fair

Over: BLACK EARTH CREEK

0.4M S JCT USH 14, Dane, WI

Built 1964 Load: 21.1 t ADT: 82

LRD MARSH RD

Fair

Over: BR YAHARA RIVER

0.2M S JCT USH 12, Dane, WI

Built 1930 Load: 21.1 t ADT: 406

CTH PB

Fair

Over: TRIB SUGAR RIVER

0.5M N JCT STH 69, Dane, WI

Built 1954 Load: 21.1 t ADT: 4,700

CTH G

Fair

Over: CRAWFISH RIVER

0.6M S JCT CTH GG, Dodge, WI

Built 1949 Load: 21.1 t ADT: 880

STH 28-STH 67-MAIN

Fair

Over: E BR ROCK RIVER

0.9M E JCT STH 67 TO S, Dodge, WI

Built 1970 Load: 21.1 t ADT: 4,100

LRD WEST FOX RD

Fair

Over: FOX LAKE OUTLET

0.2M E JCT CTH C, Dodge, WI

Built 1968 Load: 21.1 t ADT: 94

LRD ZIONS CHURCH R

Fair

Over: BR E BR ROCK RIVER

0.4M W JCT STH 175, Dodge, WI

Built 1930 Load: 21.1 t ADT: 47

LRD FREEDOM RD

Fair

Over: BR E BR ROCK RIVER

1.5M N JCT STH 33, Dodge, WI

Built 1977 Load: 21.1 t ADT: 47

STH 13

Fair

Over: MIDDLE RIVER

0.2M N JCT CTH D, Douglas, WI

Built 1962 Load: 21.1 t ADT: 1,600

STH 13

Fair

Over: POPLAR RIVER

0.1M N JCT CTH P, Douglas, WI

Built 1962 Load: 21.1 t ADT: 1,400

Showing 3,351-3,400 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.