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 250TH ST

Fair

Over: HUTTON CREEK

1.7M N JCT CTH G, St. Croix, WI

Built 1967 Load: 21.1 t ADT: 60

LRD 80TH AVE

Fair

Over: BR CARR CREEK

1.0M W JCT CTH D, St. Croix, WI

Built 1962 Load: 21.1 t ADT: 225

CTH D

Fair

Over: SILVER CREEK

0.8M W JCT STH 13, Taylor, WI

Built 1960 Load: 21.1 t ADT: 297

LRD MAIN ST

Fair

Over: TAPPEN CREEK

0.2M S JCT CTH S, Trempealeau, WI

Built 1997 Load: 21.1 t ADT: 952

LRD PIERZINA LANE

Fair

Over: NORTH CREEK

2.3M N JCT STH 95, Trempealeau, WI

Built 1975 Load: 21.1 t ADT: 20

CTH K

Fair

Over: BR BUFFALO RIVER

0.1M N JCT USH 10, Trempealeau, WI

Built 1926 Load: 21.1 t ADT: 336

LRD HERMANSON RD (

Fair

Over: WELCH COULEE CREEK

0.1M N JCT CTH N, Trempealeau, WI

Built 1963 Load: 21.1 t ADT: 20

STH 131

Fair

Over: KICKAPOO RIVER

2.1M N JCT USH 14 TO E, Vernon, WI

Built 1965 Load: 21.1 t ADT: 1,100

LRD HAY VALLEY RD

Fair

Over: KICKAPOO RIVER

0.6M W JCT STH 131, Vernon, WI

Built 1966 Load: 21.1 t ADT: 47

LRD TRISTATE RD

Fair

Over: N FK BAD AXE RIVER

1.4M W JCT USH 14, Vernon, WI

Built 1976 Load: 21.1 t ADT: 205

LRD ANDERSON RIDGE

Fair

Over: S FK BAD AXE RIVER

1.6M W JCT CTH N, Vernon, WI

Built 1982 Load: 21.1 t ADT: 94

LRD PRAIRIE ROAD

Fair

Over: RUSH CREEK

2.3M E JCT CTH N, Vernon, WI

Built 1980 Load: 21.1 t ADT: 94

CTH K

Fair

Over: S CHIPMUNK COULEE CREEK

2.6M E JCT STH 35, Vernon, WI

Built 1973 Load: 21.1 t ADT: 2,278

CTH NN

Fair

Over: HORNBY CREEK

1.4M S JCT USH 14, Vernon, WI

Built 1968 Load: 21.1 t ADT: 618

CTH E

Fair

Over: NAMEKAGON RIVER

0.3M S JCT USH 63, Washburn, WI

Built 1965 Load: 21.1 t ADT: 405

CTH Q

Fair

Over: BARK RIVER

2.2M E JCT STH 164, Washington, WI

Built 1957 Load: 21.1 t ADT: 10,200

LRD INDIANA ST

Fair

Over: MILWAUKEE RIVER

0.3M E JCT USH 45, Washington, WI

Built 1955 Load: 21.1 t ADT: 5,100

LRD SCHOOL SECTION

Fair

Over: SCHOOL SECTION CREEK

0.3M N JCT CTH D, Waukesha, WI

Built 1969 Load: 21.1 t ADT: 76

STH 54

Fair

Over: BR LITTLE WOLF RIVER

0.9M E JCT CTH O TO S, Waupaca, WI

Built 1941 Load: 21.1 t ADT: 6,500

LRD CTH OO

Fair

Over: WHITCOMB CREEK

TOWN OF UNION, Waupaca, WI

Built 1964 Load: 21.1 t ADT: 119

CTH K

Fair

Over: BLAKE CREEK

0.4M N JCT CTH N, Waupaca, WI

Built 1965 Load: 21.1 t ADT: 244

STH 44

Fair

Over: EIGHT MILE CREEK

4.0M N JCT CTH M, Winnebago, WI

Built 1938 Load: 21.1 t ADT: 8,100

CTH E / VEEDUM RD

Fair

Over: YELLOW RIVER

0.1M W JCT STH 80, Wood, WI

Built 1969 Load: 21.1 t ADT: 500

CTH T

Fair

Over: MILL CREEK

0.1M N JCT USH 10, Wood, WI

Built 1963 Load: 21.1 t ADT: 860

LRD SMOKY HILL RD

Fair

Over: LITTLE BEAR CREEK

0.1M S JCT CTH H, Wood, WI

Built 1966 Load: 21.1 t ADT: 80

CTH V

Fair

Over: ROCKY RUN CREEK

0.7M W JCT CTH E, Wood, WI

Built 1973 Load: 21.1 t ADT: 190

FR183

Fair

Over: IRON RIVER

4.0 M. S. JCT CTH GG, Ashland, WI

Built 1988 Load: 21.4 t ADT: 20

FR 2134

Fair

Over: RAT RIVER

7.8 MI N OF JCT CTH C, Forest, WI

Built 1962 Load: 21.4 t ADT: 50

CTH GG

Fair

Over: E FK CHIPPEWA RIVER

8.0M N JCT STH 70, Ashland, WI

Built 1948 Load: 22.7 t ADT: 289

USH 53 NB

Fair

Over: CHETEK RIVER

8.1M N JCT CTH M TO E, Barron, WI

Built 1972 Load: 22.7 t ADT: 6,000

CTH A

Fair

Over: S FK HAY CREEK

0.5M W JCT CTH K, Barron, WI

Built 1938 Load: 22.7 t ADT: 719

CTH D

Fair

Over: CHETEK RIVER

1.3M E JCT CTH M, Barron, WI

Built 1929 Load: 22.7 t ADT: 1,900

LRD 6 1/2 AVE

Fair

Over: HAY RIVER

0.9M W JCT CTH F, Barron, WI

Built 1975 Load: 22.7 t ADT: 23

LRD 5TH ST

Fair

Over: QUADERERS CREEK

0.2M S JCT USH 8, Barron, WI

Built 1915 Load: 22.7 t ADT: 3,995

LRD 10TH AVE

Fair

Over: MOON CREEK

0.7M E JCT CTH K, Barron, WI

Built 1950 Load: 22.7 t ADT: 47

LRD 4 1/2 AVE

Fair

Over: UPPER PINE CREEK

0.3M W JCT CTH U, Barron, WI

Built 1940 Load: 22.7 t ADT: 94

CTH O

Fair

Over: BROWN CREEK

1.4M N JCT CTH D, Barron, WI

Built 1971 Load: 22.7 t ADT: 1,635

LRD 21 3/4 ST

Fair

Over: TILLER CREEK

0.2M N JCT CTH A, Barron, WI

Built 1950 Load: 22.7 t ADT: 94

LRD 7TH AVE

Fair

Over: BR RED CEDAR RIVER

2.3M E JCT CTH D, Barron, WI

Built 1940 Load: 22.7 t ADT: 47

LRD 0 ST

Fair

Over: BR S FK HAY RIVER

1.3M S JCT CTH D, Barron, WI

Built 1984 Load: 22.7 t ADT: 47

LRD MARENGO LAKE R

Fair

Over: MARENGO RIVER

8.0M S JCT CTH E, Bayfield, WI

Built 1973 Load: 22.7 t ADT: 24

LRD RANDYSEK RD

Fair

Over: NAMEKAGON RIVER

0.7M S JCT CTH M, Bayfield, WI

Built 1964 Load: 22.7 t ADT: 48

LRD COUNTY LINE RD

Fair

Over: MARENGO RIVER

0.2M S JCT CTH E, Bayfield, WI

Built 1925 Load: 22.7 t ADT: 47

LRD SCENIC DR

Fair

Over: E FK WHITE RIVER

0.3M W JCT CTH H, Bayfield, WI

Built 1934 Load: 22.7 t ADT: 30

STH 54-MASON ST

Fair

Over: CNW RR

3.2M E JCT USH 41 TO S, Brown, WI

Built 1973 Load: 22.7 t ADT: 34,200

STH RAMP BROADWAY-

Fair

Over: LAND

3.2M E JCT USH 41 TO S, Brown, WI

Built 1973 Load: 22.7 t ADT: 1,600

STH 54-MASON ST

Fair

Over: LAND

3.2M E JCT USH 41 TO S, Brown, WI

Built 1973 Load: 22.7 t ADT: 34,200

STH 54 WB & EB (MA

Fair

Over: FOX RIVER & PED. TRAIL &

3.4M E JCT USH 41 TO S, Brown, WI

Built 1973 Load: 22.7 t ADT: 38,800

STH RAMP JEFFERSON

Fair

Over: LAND

3.4M E JCT USH 41 TO S, Brown, WI

Built 1973 Load: 22.7 t ADT: 2,600

STH 54 WB & EB (MA

Fair

Over: PARKING LOT

0.7M W JCT STH 29 TO W, Brown, WI

Built 1973 Load: 22.7 t ADT: 34,200

Showing 3,501-3,550 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.