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 40TH STREET

Fair

Over: BRANCH ELK CREEK

0.7 M N OF 82ND AVE, Chippewa, WI

Built 2000 Load: 17.8 t ADT: 45

LRD 220TH STREET

Fair

Over: PAINT CREEK

0.2 M N 40TH AVENUE, Chippewa, WI

Built 1968 Load: 17.8 t ADT: 200

CTH N

Fair

Over: POPPLE RIVER

1.3M E JCT STH 73, Clark, WI

Built 1983 Load: 17.8 t ADT: 464

LRD HEINTOWN RD

Fair

Over: WEDGES CREEK

1.5M W JCT CTH G, Clark, WI

Built 1930 Load: 17.8 t ADT: 58

LRD PRAY AVE

Fair

Over: S BR ONEILL CREEK

1.6M N JCT USH 10, Clark, WI

Built 1958 Load: 17.8 t ADT: 92

LRD SANDHILL AVE

Fair

Over: S BR ONEILL CREEK

1.4M N JCT USH 10, Clark, WI

Built 1959 Load: 17.8 t ADT: 116

STH 60

Fair

Over: WISCONSIN RIVER OVERFLOW

0.2M E JCT STH 78 TO N, Columbia, WI

Built 1971 Load: 17.8 t ADT: 6,800

LRD SAND CREEK RD

Fair

Over: SAND CREEK

0.1M E JCT STH 131, Crawford, WI

Built 1930 Load: 17.8 t ADT: 352

LRD JERRETT LANE (

Fair

Over: CROW HOLLOW CREEK

0.1M S CTH S, Crawford, WI

Built 1960 Load: 17.8 t ADT: 20

LRD BAILEY DRIVE (

Fair

Over: PLUM RUN

1.0M S JCT CTH X, Crawford, WI

Built 1961 Load: 17.8 t ADT: 10

LRD W RIDGE RD

Fair

Over: KOSHKONONG CREEK

1.1M W JCT CTH BB, Dane, WI

Built 1972 Load: 17.8 t ADT: 176

LRD E DYRESON RD

Fair

Over: YAHARA RIVER

0.6M W JCT CTH AB, Dane, WI

Built 1897 Load: 17.8 t ADT: 450

CTH I

Fair

Over: CRAWFISH RIVER

1.3M E JCT CTH T, Dodge, WI

Built 1953 Load: 17.8 t ADT: 410

CTH K

Fair

Over: HAY RIVER

0.5M N. OF 1410TH AVE., Dunn, WI

Built 1953 Load: 17.8 t ADT: 440

CTH MW

Fair

Over: RED CEDAR RIVER

0.1M W JCT CTH M, Dunn, WI

Built 1959 Load: 17.8 t ADT: 263

LRD 890TH ST.

Fair

Over: HAY CREEK

0.3M S JCT STH 64, Dunn, WI

Built 1923 Load: 17.8 t ADT: 96

CTH HH

Fair

Over: LOWES CREEK

1.4M W STH 93, Eau Claire, WI

Built 1954 Load: 17.8 t ADT: 666

CTH R

Fair

Over: THOMPSON VALLEY CREEK

0.4M W USH 12, Eau Claire, WI

Built 1924 Load: 17.8 t ADT: 2,255

LRD ND

Fair

Over: BR EAU CLAIRE RIVER

2.7M E STH 27, Eau Claire, WI

Built 1925 Load: 17.8 t ADT: 256

STH 101

Fair

Over: PINE RIVER

9.6M N JCT CTH C, Florence, WI

Built 1939 Load: 17.8 t ADT: 750

CTH MMM

Fair

Over: S BR ROCK RIVER

0.7M N JCT STH 49, Fond du Lac, WI

Built 1964 Load: 17.8 t ADT: 1,053

CTH Q

Fair

Over: S BR MANITOWOC RIVER

0.1M W JCT CTH W TO S, Fond du Lac, WI

Built 1921 Load: 17.8 t ADT: 880

LRD BRANDON ST (CT

Fair

Over: S BR ROCK RIVER

0.3M N JCT STH 49, Fond du Lac, WI

Built 1955 Load: 17.8 t ADT: 3,100

CTH A

Fair

Over: LITTLE PLATTE RIVER

0.1M E JCT STH 80, Grant, WI

Built 1950 Load: 17.8 t ADT: 630

STH 133

Fair

Over: HEILER CREEK

7.5M N JCT CTH VV, Grant, WI

Built 1951 Load: 17.8 t ADT: 870

CTH U

Fair

Over: BEETOWN BRANCH

1.4M S JCT STH 81, Grant, WI

Built 1951 Load: 17.8 t ADT: 810

LRD COON HOLLOW RD

Fair

Over: PLATTE RIVER

4.2M N JCT CTH A, Grant, WI

Built 1970 Load: 17.8 t ADT: 53

LRD DECT-ALBANY RO

Fair

Over: SUGAR RIVER

0.3M W JCT CTH E, Green, WI

Built 1982 Load: 17.8 t ADT: 105

LRD GOULD HILL RD

Fair

Over: ERICKSON CREEK

1.2M E JCT STH 78, Green, WI

Built 1949 Load: 17.8 t ADT: 105

LRD FELDT RD

Fair

Over: BR BURGY CREEK

2.6M S JCT CTH F, Green, WI

Built 1939 Load: 17.8 t ADT: 105

LRD SMOCK VALLEY R

Fair

Over: SKINNER CREEK

1.3M E JCT CTH M, Green, WI

Built 1960 Load: 17.8 t ADT: 129

LRD TOWN CENTER RD

Fair

Over: SPRING CREEK

0.8M W JCT CTH G, Green, WI

Built 1954 Load: 17.8 t ADT: 117

CTH H

Fair

Over: CONLEY CREEK

2.8M S JCT USH 18, Iowa, WI

Built 1958 Load: 17.8 t ADT: 200

STH 191-5TH ST

Fair

Over: DODGE BRANCH

4.8M E JCT CTH W, Iowa, WI

Built 1930 Load: 17.8 t ADT: 790

LRD TWIN BRIDGE RD

Fair

Over: DODGE BRANCH

2.4M N JCT STH 39, Iowa, WI

Built 1960 Load: 17.8 t ADT: 156

STH 54

Fair

Over: HAWK CREEK

5.7M E JCT CTH X, Jackson, WI

Built 1965 Load: 17.8 t ADT: 2,900

CTH G

Fair

Over: CURRAN CREEK

1.5M N JCT STH 95, Jackson, WI

Built 1939 Load: 17.8 t ADT: 120

CTH A

Fair

Over: CRAWFISH RIVER

0.1M E JCT CTH Q, Jefferson, WI

Built 1948 Load: 17.8 t ADT: 2,900

CTH M

Fair

Over: RUSSIAN COULEE CREEK

1.1M E JCT CTH YY, La Crosse, WI

Built 1952 Load: 17.8 t ADT: 2,100

CTH J

Fair

Over: LA CROSSE RIVER

0.8M S JCT STH 16, La Crosse, WI

Built 1975 Load: 17.8 t ADT: 1,800

CTH F

Fair

Over: OTTER CREEK

3.7M N JCT STH 23, Lafayette, WI

Built 1963 Load: 17.8 t ADT: 870

LRD JOHNSON RD

Fair

Over: SHULLSBURG BRANCH

1.0M N JCT STH 11, Lafayette, WI

Built 1949 Load: 17.8 t ADT: 88

LRD DUNBARTON RD

Fair

Over: WOLF CREEK

1.3M S JCT STH 11, Lafayette, WI

Built 1953 Load: 17.8 t ADT: 88

LRD ANDREWS RD

Fair

Over: SPOFFORD CREEK

1.4M W JCT STH 176, Lafayette, WI

Built 1950 Load: 17.8 t ADT: 47

LRD JANES SPUR RD

Fair

Over: N BR PINE RIVER

1.4M E JCT CTH X, Lincoln, WI

Built 1970 Load: 17.8 t ADT: 52

LRD MILL RD

Fair

Over: DEVIL CREEK

0.8M N JCT CTH X, Lincoln, WI

Built 1936 Load: 17.8 t ADT: 72

CTH M

Fair

Over: PIGEON RIVER

1.7M S JCT CTH XX, Manitowoc, WI

Built 1962 Load: 17.8 t ADT: 1,550

CTH LS

Fair

Over: SILVER CREEK

0.3M S JCT CTH CL, Manitowoc, WI

Built 1940 Load: 17.8 t ADT: 1,760

CTH J

Fair

Over: EAU CLAIRE RIVER

0.3M N JCT STH 29, Marathon, WI

Built 1955 Load: 17.8 t ADT: 1,441

CTH N

Fair

Over: BIG SANDY CREEK

0.5M W JCT CTH SS, Marathon, WI

Built 1959 Load: 17.8 t ADT: 4,000

Showing 3,101-3,150 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.