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 RC

Poor

Over: BR PINE RIVER

0.1M E JCT STH 80, Richland, WI

Built 1970 Load: 21.1 t ADT: 1,200

CTH G

Poor

Over: DEER TAIL CREEK

1.1M S JCT CTH P, Rusk, WI

Built 1975 Load: 21.1 t ADT: 1,302

LRD RIGHT OF WAY R

Poor

Over: POTATO CREEK

0.7M N JCT CTH D-55, Rusk, WI

Built 1912 Load: 21.1 t ADT: 54

CTH PF MAPLE ST

Poor

Over: BARABOO RIVER

0.2M S JCT CTH I, Sauk, WI

Built 1940 Load: 21.1 t ADT: 292

LRD YANKE DRIVE (D

Poor

Over: OTTER CREEK

0.9M W JCT USH 12, Sauk, WI

Built 1940 Load: 21.1 t ADT: 40

LRD DAVID DR (DEAD

Poor

Over: BR PLUM CREEK

0.1M W JCT CTH G, Sauk, WI

Built 1929 Load: 21.1 t ADT: 15

CTH O

Poor

Over: HONEY CREEK

0.4M E JCT CTH C, Sauk, WI

Built 1973 Load: 21.1 t ADT: 416

CTH Q

Poor

Over: M BR EMBARRASS RIVER

0.3M N JCT STH 29, Shawano, WI

Built 1940 Load: 21.1 t ADT: 1,500

LRD S BROADWAY RD

Poor

Over: E BR SHIOC RIVER

0.5M N JCT CTH S, Shawano, WI

Built 1927 Load: 21.1 t ADT: 101

CTH S

Poor

Over: MINK CREEK

1.1M E JCT CTH A, Sheboygan, WI

Built 1922 Load: 21.1 t ADT: 330

LRD S STAFFORD ST

Poor

Over: MULLET RIVER

0.1M S JCT CTH C, Sheboygan, WI

Built 1920 Load: 21.1 t ADT: 790

CTH PP

Poor

Over: BR MULLET RIVER

0.3M W JCT CTH M, Sheboygan, WI

Built 1954 Load: 21.1 t ADT: 470

LRD SPRING VALLEY

Poor

Over: MULLET RIVER

0.7M S JCT STH 23, Sheboygan, WI

Built 1920 Load: 21.1 t ADT: 94

STH 64

Poor

Over: BLACK RIVER

0.1M E JCT CTH E TO S, Taylor, WI

Built 1953 Load: 21.1 t ADT: 1,900

LRD LIEN LANE (DEA

Poor

Over: N FK BEAVER CREEK

0.3M N JCT CTH C, Trempealeau, WI

Built 1966 Load: 21.1 t ADT: 20

CTH G

Poor

Over: BR CEDAR CREEK

1.3M N JCT STH 60, Washington, WI

Built 1956 Load: 21.1 t ADT: 1,391

CTH A

Poor

Over: MILWAUKEE RIVER

0.3M E JCT CTH M, Washington, WI

Built 1952 Load: 21.1 t ADT: 2,400

USH 18

Poor

Over: BARK RIVER

2.6 MI E JCT CTH BB, Waukesha, WI

Built 1919 Load: 21.1 t ADT: 4,100

LRD E WISCONSIN AV

Poor

Over: OCONOMOWOC RIVER

1.6 MI E JCT STH 67, Waukesha, WI

Built 1942 Load: 21.1 t ADT: 1,015

LRD CENTER DR

Poor

Over: FOX RIVER

1.9M S JCT CTH ES, Waukesha, WI

Built 1961 Load: 21.1 t ADT: 490

LRD VILLAGE HALL D

Poor

Over: UNDERWOOD CREEK

300 FEET W OF LEGION DR., Waukesha, WI

Built 1971 Load: 21.1 t ADT: 135

CTH-FF

Poor

Over: EIGHT MILE CREEK

0.5M N JCT STH 44, Winnebago, WI

Built 1954 Load: 21.1 t ADT: 730

LRD 1ST ST EAST

Poor

Over: BR CRANBERRY CREEK

4.9M W JCT CTH G, Wood, WI

Built 1920 Load: 21.1 t ADT: 60

LRD 15TH AVE

Poor

Over: BR LIGHTNING CREEK

0.2M W OF 5 1/2 STREET, Barron, WI

Built 1920 Load: 22.7 t ADT: 23

LRD 15TH AVE

Poor

Over: POND CREEK

0.4M W OF 11TH STREET, Barron, WI

Built 1980 Load: 22.7 t ADT: 47

CTH O

Poor

Over: E BR UPPER PINE CREEK

0.1M E JCT CTH U, Barron, WI

Built 1932 Load: 22.7 t ADT: 1,199

LRD NORTH FORK DRI

Poor

Over: WOOD CREEK

0.3M E JCT CTH D, Burnett, WI

Built 1925 Load: 22.7 t ADT: 60

LRD MCHUGH RD

Poor

Over: KILLSNAKE RIVER

1.4M N JCT CTH E, Calumet, WI

Built 1924 Load: 22.7 t ADT: 102

LRD STARKS RD

Poor

Over: S FK EAU CLAIRE RIVER

3.3M E JCT CTH M, Clark, WI

Built 1937 Load: 22.7 t ADT: 58

LRD ROBIN AVE

Poor

Over: CN RR

1.0M S JCT CTH N, Clark, WI

Built 1940 Load: 22.7 t ADT: 69

LRD S RIVER AVE

Poor

Over: CONLAN CREEK

4.1M S JCT USH 10, Clark, WI

Built 1928 Load: 22.7 t ADT: 58

USH 61

Poor

Over: RICHLAND CREEK

0.3M N JCT STH 60 TO E, Crawford, WI

Built 1958 Load: 22.7 t ADT: 2,700

CTH KP / MADISON S

Poor

Over: VERMONT CREEK

0.2M W JCT STH 78, Dane, WI

Built 1951 Load: 22.7 t ADT: 830

CTH T

Poor

Over: KOSHKONONG CREEK

0.3M W JCT CTH N, Dane, WI

Built 1939 Load: 22.7 t ADT: 810

CTH NP

Poor

Over: BUTLER CREEK

0.9M N JCT CTH N, Dodge, WI

Built 1965 Load: 22.7 t ADT: 527

LRD IRONDALE RD

Poor

Over: POKEGAMA RIVER

1.0M S JCT CTH W, Douglas, WI

Built 1930 Load: 22.7 t ADT: 75

USH 12

Poor

Over: WILSON CREEK

1.7M E JCT CTH O TO N, Dunn, WI

Built 1934 Load: 22.7 t ADT: 2,900

CTH N

Poor

Over: BR RED CEDAR RIVER

0.7M N JCT STH 170, Dunn, WI

Built 1934 Load: 22.7 t ADT: 213

CTH Q

Poor

Over: WILSON CREEK

2.3M N JCT USH 12, Dunn, WI

Built 1944 Load: 22.7 t ADT: 213

CTH T

Poor

Over: TAYCHEEDAH CREEK

0.5M E JCT CTH K, Fond du Lac, WI

Built 1955 Load: 22.7 t ADT: 2,500

CTH SS

Poor

Over: E BR MILWAUKEE RIVER

0.5M E JCT CTH G, Fond du Lac, WI

Built 1986 Load: 22.7 t ADT: 570

CTH M

Poor

Over: BRAEZELS BRANCH

1.0M S JCT CTH C, Green, WI

Built 1957 Load: 22.7 t ADT: 313

CTH HH

Poor

Over: KNIGHT HOLLOW CREEK

3.1M S JCT CTH H, Iowa, WI

Built 1948 Load: 22.7 t ADT: 400

CTH AB MAIN ST

Poor

Over: SCHOOL CREEK

0.8M N JCT STH 54, Kewaunee, WI

Built 1932 Load: 22.7 t ADT: 1,900

CTH W

Poor

Over: JOHNSON COULEE CREEK

0.2M E JCT CTH D, La Crosse, WI

Built 1952 Load: 22.7 t ADT: 1,530

LRD JERICHO RD

Poor

Over: JONES BRANCH

2.0M E JCT CTH G, Lafayette, WI

Built 1930 Load: 22.7 t ADT: 82

LRD KINGSLEY RD

Poor

Over: WOLF CREEK

1.5M S JCT STH 11, Lafayette, WI

Built 1930 Load: 22.7 t ADT: 88

LRD E BRENNAN LANE

Poor

Over: BRENNAN CREEK

0.2M E JCT STH 78, Lafayette, WI

Built 1930 Load: 22.7 t ADT: 5

LRD KOSZAREK RD

Poor

Over: BR SPRING BROOK

0.4M N JCT CTH G, Langlade, WI

Built 1967 Load: 22.7 t ADT: 329

CTH MM

Poor

Over: COPPER RIVER

1.3M N JCT STH 64, Lincoln, WI

Built 1966 Load: 22.7 t ADT: 282

Showing 14,251-14,300 of 14,851 bridges

Related

All states → | National rankings → | Understanding conditions → | SD bridges explained →
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.