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 Q

Poor

Over: LITTLE MANITOWOC RIVER

1.2M N JCT STH 42, Manitowoc, WI

Built 1958 Load: 22.7 t ADT: 3,000

CTH Q

Poor

Over: BR W TWIN RIVER

1.4M N JCT STH 310, Manitowoc, WI

Built 1964 Load: 22.7 t ADT: 2,100

CTH C

Poor

Over: PLOVER RIVER

0.3M W JCT CTH Y, Marathon, WI

Built 1954 Load: 22.7 t ADT: 809

LRD JUNCTION RD

Poor

Over: BIG SANDY CREEK

2.1M E JCT STH 52, Marathon, WI

Built 1920 Load: 22.7 t ADT: 86

LRD MCMILLAN RD

Poor

Over: SQUAW CREEK

0.8M E JCT CTH T, Marathon, WI

Built 1956 Load: 22.7 t ADT: 120

CTH G

Poor

Over: BR MILL CREEK

2.5M E JCT CTH E, Monroe, WI

Built 1963 Load: 22.7 t ADT: 185

CTH F

Poor

Over: EMBARRASS RIVER

1.3M E JCT STH 76, Outagamie, WI

Built 1948 Load: 22.7 t ADT: 266

LRD 30TH ST

Poor

Over: WILLOW RIVER

1.9M S JCT CTH A, Polk, WI

Built 1960 Load: 22.7 t ADT: 802

CTH Q 2ND ST

Poor

Over: WIS CENTRAL LIMITED RR

0.1M S JCT USH 10, Portage, WI

Built 1908 Load: 22.7 t ADT: 790

LRD E MAIN DR

Poor

Over: WIND LAKE DRAINAGE CANAL

0.8M S JCT CTH K, Racine, WI

Built 1965 Load: 22.7 t ADT: 293

STH 130-STH 133

Poor

Over: WISCONSIN RIVER 05

0.4M N JCT STH 133 TO S, Richland, WI

Built 1932 Load: 22.7 t ADT: 1,900

LRD CAMPUS DR

Poor

Over: BRUSH CREEK

0.1M N JCT USH 14, Richland, WI

Built 1966 Load: 22.7 t ADT: 117

LRD SENTINAL ASH R

Poor

Over: BECKY CREEK

0.2M W JCT CTH H-52, Rusk, WI

Built 1955 Load: 22.7 t ADT: 43

LRD TOWN HALL RD

Poor

Over: DELL CREEK

1.2M N JCT CTH H, Sauk, WI

Built 1965 Load: 22.7 t ADT: 83

LRD GASSER RD

Poor

Over: SKILLET CREEK

0.1M W JCT USH 12, Sauk, WI

Built 1955 Load: 22.7 t ADT: 213

LRD DIAMOND HILL R

Poor

Over: SEELEY CREEK

0.2M N JCT CTH PF, Sauk, WI

Built 1930 Load: 22.7 t ADT: 125

LRD STONES POCKET

Poor

Over: OTTER CREEK

0.4M N JCT CTH C, Sauk, WI

Built 1917 Load: 22.7 t ADT: 133

CTH B

Poor

Over: HAY CREEK

1.7M E JCT CTH A, Sawyer, WI

Built 1982 Load: 22.7 t ADT: 1,300

CTH D

Poor

Over: EMBARRASS RIVER

0.2M S JCT CTH M TO N, Shawano, WI

Built 1950 Load: 22.7 t ADT: 1,150

LRD LANDSTAD RD

Poor

Over: E BR SHIOC RIVER

0.9M E JCT STH 47, Shawano, WI

Built 1918 Load: 22.7 t ADT: 152

CTH K

Poor

Over: BR WILLOW RIVER

1.3M W JCT CTH T, St. Croix, WI

Built 1935 Load: 22.7 t ADT: 1,300

LRD NORWAY VALLEY

Poor

Over: TAMARACK RIVER

2.3M N JCT STH 93, Trempealeau, WI

Built 1928 Load: 22.7 t ADT: 94

LRD SOPPA RD

Poor

Over: TURTON CREEK

0.1M N JCT CTH T, Trempealeau, WI

Built 1962 Load: 22.7 t ADT: 47

CTH F

Poor

Over: HILLS CREEK

2.8M E JCT CTH V, Vernon, WI

Built 1935 Load: 22.7 t ADT: 390

LRD WEBER RD

Poor

Over: BR HORNBY HOLLOW CREEK

0.7M S JCT CTH NN, Vernon, WI

Built 1935 Load: 22.7 t ADT: 47

LRD GEBHARDT RD

Poor

Over: DOUSMAN DITCH

2.9M E JCT CTH Y, Waukesha, WI

Built 1966 Load: 22.7 t ADT: 5,100

CTH B

Poor

Over: LITTLE WOLF RIVER

0.3M W JCT STH 22, Waupaca, WI

Built 1949 Load: 22.7 t ADT: 1,169

FR108

Poor

Over: N. FK. YELLOW RIVER

2.3 M. S. JCT CTH D, Taylor, WI

Built 1980 Load: 23.0 t ADT: 50

LRD 18TH AVE

Poor

Over: SILVER CREEK

0.8M E JCT CTH M, Barron, WI

Built 1960 Load: 24.3 t ADT: 94

CTH C

Poor

Over: SUAMICO RIVER

1.0M S JCT CTH B, Brown, WI

Built 1948 Load: 24.3 t ADT: 890

LRD HENRY ST

Poor

Over: BAIRD CREEK

0.4M S JCT STH 54, Brown, WI

Built 1970 Load: 24.3 t ADT: 6,180

CTH H

Poor

Over: LITTLE OTTER CREEK

0.6 M N 10TH AVENUE, Chippewa, WI

Built 1935 Load: 24.3 t ADT: 975

LRD CENTRAL STREET

Poor

Over: DUNCAN CREEK

0.1 M E STH 124, Chippewa, WI

Built 1934 Load: 24.3 t ADT: 3,310

CTH K

Poor

Over: S FK POPPLE RIVER

1.0M W JCT CTH Q, Clark, WI

Built 1979 Load: 24.3 t ADT: 394

LRD CARDINAL AVE

Poor

Over: BR JACK CREEK

0.6M S JCT USH 10, Clark, WI

Built 1928 Load: 24.3 t ADT: 58

LRD CAPITOL VIEW R

Poor

Over: PHEASANT BRANCH CREEK

0.2M N JCT AIRPORT RD, Dane, WI

Built 1966 Load: 24.3 t ADT: 117

LRD BELL BROOK RD

Poor

Over: BR STORY CREEK

1.5M E JCT CTH D, Dane, WI

Built 1923 Load: 24.3 t ADT: 88

LRD LEWIS RD

Poor

Over: W. BRANCH OF SUGAR RIVER

100 FT EAST OF CTH JG, Dane, WI

Built 1930 Load: 24.3 t ADT: 50

CTH D

Poor

Over: RED CEDAR RIVER

2.8M S JCT STH 25, Dunn, WI

Built 1975 Load: 24.3 t ADT: 1,501

CTH Q

Poor

Over: BOLEN CREEK

0.4M N JCT STH 64, Dunn, WI

Built 1968 Load: 24.3 t ADT: 113

CTH H

Poor

Over: WOLF RIVER

1.8M N CTH MM, Eau Claire, WI

Built 1975 Load: 24.3 t ADT: 370

CTH EE WISCONSIN

Poor

Over: W BR LITTLE SUGAR RIVER

0.1M E JCT F, Green, WI

Built 1968 Load: 24.3 t ADT: 860

STH 130-STH 133

Poor

Over: WISCONSIN RIVER 05

2.3M N JCT CTH C, Iowa, WI

Built 1942 Load: 24.3 t ADT: 1,900

STH 54

Poor

Over: MILL CREEK

0.7M E JCT CTH V TO N, Jackson, WI

Built 1959 Load: 24.3 t ADT: 640

LRD NICHOLS RD

Poor

Over: TROUT RUN CREEK

0.2M S JCT STH 54, Jackson, WI

Built 1923 Load: 24.3 t ADT: 102

CTH O

Poor

Over: CLEAR CREEK

3.1M E JCT CTH S, Jackson, WI

Built 1928 Load: 24.3 t ADT: 350

LRD TURNER RD

Poor

Over: BARK RIVER

0.2M W JCT CTH F, Jefferson, WI

Built 1982 Load: 24.3 t ADT: 82

CTH M

Poor

Over: LA CROSSE RIVER

0.4M N JCT STH 16, La Crosse, WI

Built 1955 Load: 24.3 t ADT: 1,800

LRD MUENZENBERGER

Poor

Over: BR COON CREEK

1.2M E JCT CTH G, La Crosse, WI

Built 1941 Load: 24.3 t ADT: 94

CTH F

Poor

Over: STEINER BRANCH

2.0M N JCT CTH G TO E, Lafayette, WI

Built 1936 Load: 24.3 t ADT: 505

Showing 14,301-14,350 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.