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 MILCHESKY RD

Fair

Over: BLACK RIVER

1.5M E JCT STH 35, Douglas, WI

Built 1976 Load: 21.1 t ADT: 53

LRD TOWN RD TT

Fair

Over: UPPER TAMARACK RIVER

3.3M W JCT STH 35, Douglas, WI

Built 1925 Load: 21.1 t ADT: 53

CTH FF

Fair

Over: HAY RIVER

1.0M E JCT CTH F, Dunn, WI

Built 1951 Load: 21.1 t ADT: 263

CTH V

Fair

Over: LOWER PINE CREEK

2.1M E JCT STH 25, Dunn, WI

Built 1966 Load: 21.1 t ADT: 319

STH 29

Fair

Over: GILBERT CREEK

0.6M E JCT CTH Q TO N, Dunn, WI

Built 1969 Load: 21.1 t ADT: 2,000

STH 40-MAIN ST

Fair

Over: EIGHTEEN MILE CREEK

2.2M N JCT CTH B, Dunn, WI

Built 1934 Load: 21.1 t ADT: 4,000

CTH D

Fair

Over: BR KNIGHTS CREEK

0.3M N JCT STH 72, Dunn, WI

Built 1975 Load: 21.1 t ADT: 162

CTH D

Fair

Over: BEAVER CREEK

0.4M N CTH V TO E, Eau Claire, WI

Built 1966 Load: 21.1 t ADT: 871

CTH V

Fair

Over: BEARGRASS CREEK

0.6M N CTH JJ, Eau Claire, WI

Built 1925 Load: 21.1 t ADT: 256

CTH M

Fair

Over: BLACK CREEK

1.4M W CTH H, Eau Claire, WI

Built 1963 Load: 21.1 t ADT: 256

CTH G

Fair

Over: BRIDGE CREEK

0.1M N USH 12, Eau Claire, WI

Built 1959 Load: 21.1 t ADT: 1,640

CTH H

Fair

Over: SCHOOLHOUSE CREEK

0.1M N USH 12, Eau Claire, WI

Built 1929 Load: 21.1 t ADT: 790

CTH M

Fair

Over: W BR ROCK RIVER

0.4M N JCT CTH T(WEST), Fond du Lac, WI

Built 1929 Load: 21.1 t ADT: 1,400

CTH T

Fair

Over: SEVEN MILE CREEK

0.8M W JCT CTH Y, Fond du Lac, WI

Built 1930 Load: 21.1 t ADT: 510

LRD ELMORE DR

Fair

Over: W BR MILWAUKEE RIVER

1.1M E JCT CTH W, Fond du Lac, WI

Built 1923 Load: 21.1 t ADT: 180

LRD FREMONT RD

Fair

Over: W BR FOND DU LAC RIVER

1.0M E JCT STH 26, Fond du Lac, WI

Built 1958 Load: 21.1 t ADT: 205

LRD SCOTT ST

Fair

Over: DE NEVEU CREEK

1.4M E JCT USH 45, Fond du Lac, WI

Built 1965 Load: 21.1 t ADT: 3,100

USH 61

Fair

Over: CROOKED CREEK

3.4M N JCT CTH T, Grant, WI

Built 1952 Load: 21.1 t ADT: 4,000

CTH X

Fair

Over: READY HOLLOW CREEK

1.8M N JCT CTH P, Grant, WI

Built 1958 Load: 21.1 t ADT: 230

LRD PINE GROVE RD

Fair

Over: GREGORY BRANCH

0.1M E JCT USH 61, Grant, WI

Built 1939 Load: 21.1 t ADT: 53

LRD MUSKELLUNGE RD

Fair

Over: RATTLESNAKE CREEK

1.4M E JCT STH 133, Grant, WI

Built 1969 Load: 21.1 t ADT: 102

LRD DOUGHERTY CREE

Fair

Over: DOUGHERTY CREEK

1.8M S JCT CTH H, Green, WI

Built 1935 Load: 21.1 t ADT: 105

LRD W PUDDLE DOCK

Fair

Over: BR DOUGHERTY CREEK

1.5M N JCT CTH C, Green, WI

Built 1935 Load: 21.1 t ADT: 105

LRD ROTHEN-BUEHLER

Fair

Over: BR SKINNER CREEK

0.1M W JCT CTH J, Green, WI

Built 1933 Load: 21.1 t ADT: 52

LRD MT HOPE RD

Fair

Over: OK CREEK

1.7M S JCT STH 11, Green, WI

Built 1930 Load: 21.1 t ADT: 117

CTH H

Fair

Over: GRAND RIVER

1.2M S JCT CTH KK, Green Lake, WI

Built 1953 Load: 21.1 t ADT: 250

STH 39

Fair

Over: MINERAL POINT BRANCH

1.5M E JCT CTH E, Iowa, WI

Built 1936 Load: 21.1 t ADT: 1,100

USH 18

Fair

Over: CRAWFISH RIVER

1.2M E JCT STH 89 TO N, Jefferson, WI

Built 1940 Load: 21.1 t ADT: 5,400

LRD ROCKVALE RD

Fair

Over: ROCK RIVER

0.7M E JCT CTH F, Jefferson, WI

Built 1971 Load: 21.1 t ADT: 293

LRD CADY ST

Fair

Over: ROCK RIVER

0.2M E JCT STH 26 BUSINES, Jefferson, WI

Built 1938 Load: 21.1 t ADT: 4,200

LRD SMITH RD

Fair

Over: S FK BARABOO RIVER

0.6M S JCT STH 33, Juneau, WI

Built 1970 Load: 21.1 t ADT: 144

LRD DISPOSAL PLANT

Fair

Over: BR GARVIN CREEK

0.1M S JCT CTH O, Juneau, WI

Built 1935 Load: 21.1 t ADT: 11

CTH D

Fair

Over: SILVER CREEK

0.9M N JCT CTH S, Kewaunee, WI

Built 1954 Load: 21.1 t ADT: 364

CTH U

Fair

Over: STONEY CREEK

2.3M N JCT CTH S, Kewaunee, WI

Built 1956 Load: 21.1 t ADT: 188

LRD WASHINGTON RD

Fair

Over: AHNAPEE RIVER

0.2M W JCT STH 42, Kewaunee, WI

Built 1960 Load: 21.1 t ADT: 88

CTH M

Fair

Over: LARSON COULEE CREEK

1.7M N JCT STH 16, La Crosse, WI

Built 1957 Load: 21.1 t ADT: 1,800

CTH O

Fair

Over: BOSTWICK CREEK

0.1M E JCT CTH OA, La Crosse, WI

Built 1957 Load: 21.1 t ADT: 2,700

LRD NIEDFELDT RD

Fair

Over: BURNS CREEK

0.2M S JCT STH 162, La Crosse, WI

Built 1981 Load: 21.1 t ADT: 64

LRD JOHNSON COULEE

Fair

Over: BURNS CREEK

0.1M W JCT STH 162, La Crosse, WI

Built 1980 Load: 21.1 t ADT: 20

LRD GANT RD

Fair

Over: YELLOWSTONE RIVER

1.1M N JCT CTH F, Lafayette, WI

Built 1930 Load: 21.1 t ADT: 47

LRD SUNNY DALE RD

Fair

Over: BR MOUNDS BRANCH

0.9M S JCT CTH G, Lafayette, WI

Built 1955 Load: 21.1 t ADT: 47

LRD LANDON RD

Fair

Over: BONNER BRANCH

0.7M N JCT CTH G, Lafayette, WI

Built 1948 Load: 21.1 t ADT: 58

LRD S DUBLIN RD

Fair

Over: COPPER CREEK

1.6M S JCT CTH K, Lafayette, WI

Built 1959 Load: 21.1 t ADT: 58

LRD RICHARDSON LAN

Fair

Over: GALENA RIVER

2.4M S JCT CTH W, Lafayette, WI

Built 1917 Load: 21.1 t ADT: 10

CTH H

Fair

Over: BLUE MOUNDS BRANCH

0.2M E JCT STH 78, Lafayette, WI

Built 1922 Load: 21.1 t ADT: 352

LRD CRIST LANE (DE

Fair

Over: BR PECATONICA RIVER

0.1M W JCT STH 23, Lafayette, WI

Built 1952 Load: 21.1 t ADT: 10

LRD OLD HWY Q RD

Fair

Over: YELLOWSTONE RIVER

0.1M N JCT CTH N, Lafayette, WI

Built 1971 Load: 21.1 t ADT: 176

LRD STAMPER RD

Fair

Over: EVERGREEN CREEK

2.6M S JCT STH 64, Langlade, WI

Built 1930 Load: 21.1 t ADT: 221

LRD 3RD AVE

Fair

Over: BIG HAY MEADOW CREEK

1.1M E JCT STH 17, Lincoln, WI

Built 1936 Load: 21.1 t ADT: 15

LRD WILLOW AVE (DE

Fair

Over: BALDWIN CREEK

3.2M N JCT CTH F, Lincoln, WI

Built 1930 Load: 21.1 t ADT: 7

Showing 3,401-3,450 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.