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 BERGSTROM RD

Fair

Over: NEENAH SLOUGH

0.9M N JCT CTH G, Winnebago, WI

Built 1975 Load: 32.4 t ADT: 5,000

IH 41

Fair

Over: NEENAH SLOUGH

5.1M N JCT USH 45 TO N, Winnebago, WI

Built 1975 Load: 32.4 t ADT: 65,700

LRD JEWELERS PARK

Fair

Over: NEENAH SLOUGH

0.2M N JCT USH 41, Winnebago, WI

Built 1975 Load: 32.4 t ADT: 2,400

STH 21-CONGRESS ST

Fair

Over: FOX RIVER

0.9M E JCT USH 41 TO N, Winnebago, WI

Built 1982 Load: 32.4 t ADT: 19,600

LRD NINTH AVENUE

Fair

Over: SAWYER CREEK

0.9M W JCT USH 41, Winnebago, WI

Built 1992 Load: 32.4 t ADT: 7,100

LRD IRISH RD

Fair

Over: DRAINAGE DITCH

0.7M S JCT CTH BB, Winnebago, WI

Built 1991 Load: 32.4 t ADT: 1,800

USH 10

Fair

Over: DRAINAGE WAY

TOWN OF MENASHA, Winnebago, WI

Built 1995 Load: 32.4 t ADT: 20,500

STH 45

Fair

Over: DRAINAGE WAY

0.1 M SOUTH OF CTH GG, Winnebago, WI

Built 2002 Load: 32.4 t ADT: 15,200

STH 73-N LIMIT RD

Fair

Over: CAT CREEK

2.2M N JCT CTH E, Wood, WI

Built 1951 Load: 32.4 t ADT: 2,700

USH 10

Fair

Over: BEAVER CREEK

1.8M E JCT CTH B TO N, Wood, WI

Built 1980 Load: 32.4 t ADT: 3,200

LRD SOUTH CENTRAL

Fair

Over: MILL CREEK

1.3M N JCT USH 10 TO E, Wood, WI

Built 1986 Load: 32.4 t ADT: 8,000

CTH F

Fair

Over: MILL CREEK

0.2M S JCT CTH N EAST, Wood, WI

Built 1988 Load: 32.4 t ADT: 940

STH 73

Fair

Over: HEMLOCK CREEK

2.2M N JCT STH 186, Wood, WI

Built 1951 Load: 32.4 t ADT: 2,100

CTH H

Fair

Over: YELLOW RIVER

1.7M W JCT CTH B, Wood, WI

Built 1939 Load: 32.4 t ADT: 3,200

CTH Y

Fair

Over: E BR YELLOW RIVER

1.8M W JCT STH 13, Wood, WI

Built 1929 Load: 32.4 t ADT: 1,300

FR194

Fair

Over: MARENGO RIVER

6.5 M. N. JCT CTH M, Bayfield, WI

Built 1993 Load: 32.7 t ADT: 20

CTH I

Fair

Over: WEDGES CREEK

0.8M W JCT CTH G, Clark, WI

Built 1968 Load: 32.7 t ADT: 255

IRR BIA RTE 1011

Fair

Over: EVERGREEN CREEK

9 KM N &11 KM E OF NEOPIT, Menominee, WI

Built 1985 Load: 32.7 t ADT: 30

FR 2112

Fair

Over: SO BRANCH OCONTO RIVER

3.2 MI S OF JCT CTH W, Oconto, WI

Built 1964 Load: 32.7 t ADT: 50

CTH D

Fair

Over: N BR EMBARRASS RIVER

0.9M N JCT STH 29, Shawano, WI

Built 2010 Load: 33.0 t ADT: 930

LRD WATER ST

Fair

Over: CHIPPEWA RIVER

0.1 MI E JCT 1ST AVE, Eau Claire, WI

Built 2016 Load: 33.7 t ADT: 11,900

STH 175-APPLETON A

Fair

Over: MENOMONEE RIVER

1.0M N JCT USH 45, Milwaukee, WI

Built 1971 Load: 33.7 t ADT: 13,900

FR152

Fair

Over: S.F. FLAMBEAU RIVER

0.6 M. S. JCT STH 182, Price, WI

Built 1975 Load: 33.7 t ADT: 80

STH 13-MAIN ST

Fair

Over: LITTLE ROCHE A CRI CREEK

0.1M N JCT CTH J, Adams, WI

Built 1993 Load: 34.0 t ADT: 7,020

STH 13

Fair

Over: CARTER CREEK

1.7M N JCT CTH J, Adams, WI

Built 1937 Load: 34.0 t ADT: 7,100

STH 112

Fair

Over: WHITE RIVER

3.7M N JCT CTH E, Ashland, WI

Built 1926 Load: 34.0 t ADT: 2,100

CTH OO

Fair

Over: RED CEDAR RIVER

1.9M E JCT CTH O, Barron, WI

Built 1986 Load: 34.0 t ADT: 512

LRD ALLEN ST

Fair

Over: RED CEDAR RIVER

1.1M E JCT USH 53, Barron, WI

Built 1992 Load: 34.0 t ADT: 6,637

LRD 19 1/4 STREET

Fair

Over: UPPER PINE CREEK

0.2M N JCT CTH U, Barron, WI

Built 1977 Load: 34.0 t ADT: 47

CTH B

Fair

Over: BR YELLOW RIVER

2.6M E JCT USH 63, Barron, WI

Built 1950 Load: 34.0 t ADT: 1,199

USH 2-STH 13

Fair

Over: FISH CREEK

0.5M E JCT STH 13 TO N, Bayfield, WI

Built 1991 Load: 34.0 t ADT: 11,300

CTH QQ

Fair

Over: BAIRD CREEK

0.6M S JCT CTH N, Brown, WI

Built 1960 Load: 34.0 t ADT: 1,319

LRD GLENDALE AVE

Fair

Over: LANCASTER BROOK

0.2M W JCT CTH HS, Brown, WI

Built 1966 Load: 34.0 t ADT: 6,700

LRD LAKEVIEW DR

Fair

Over: LANCASTER BROOK

0.6M N JCT CTH HS, Brown, WI

Built 1968 Load: 34.0 t ADT: 2,291

LRD WEST FRONTAGE

Fair

Over: ASHWAUBENON CREEK

0.3M N JCT CTH F, Brown, WI

Built 1983 Load: 34.0 t ADT: 348

STH 32

Fair

Over: BR LITTLE SUAMICO RIVER

0.2M N JCT CTH B, Brown, WI

Built 1986 Load: 34.0 t ADT: 7,900

LRD BRIDGE RD

Fair

Over: SUAMICO RIVER

1.5M S JCT CTH B, Brown, WI

Built 1928 Load: 34.0 t ADT: 88

STH 29 - WALNUT ST

Fair

Over: FOX RIVER

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

Built 1986 Load: 34.0 t ADT: 11,100

LRD MOON VALLEY DR

Fair

Over: BAIRD CREEK

1.3M S JCT STH 54, Brown, WI

Built 1983 Load: 34.0 t ADT: 466

CTH C SHAWANO AV

Fair

Over: BR TROUT CREEK

1.1M N JCT HILLCREST HEIG, Brown, WI

Built 1987 Load: 34.0 t ADT: 4,700

STH 32

Fair

Over: BEAVER CREEK

2.1M W JCT STH 54, Brown, WI

Built 1987 Load: 34.0 t ADT: 26,394

LRD OVERLAND RD

Fair

Over: DUCK CREEK

0.3M N JCT STH 54, Brown, WI

Built 1971 Load: 34.0 t ADT: 205

STH 35

Fair

Over: MISSISSIPPI RIVER TRIB

2.2M N JCT CTH N, Buffalo, WI

Built 1958 Load: 34.0 t ADT: 3,400

LRD WHISTLER ROAD

Fair

Over: YELLOW RIVER

0.8M N JCT CTH X, Burnett, WI

Built 1986 Load: 34.0 t ADT: 40

LRD GASLYN RD

Fair

Over: YELLOW RIVER

0.3M E JCT CTH X, Burnett, WI

Built 1988 Load: 34.0 t ADT: 159

LRD GLENDENNING RD

Fair

Over: YELLOW RIVER

1.1M W JCT STH 35, Burnett, WI

Built 1985 Load: 34.0 t ADT: 145

STH 35

Fair

Over: YELLOW RIVER

5.7M N JCT CTH C, Burnett, WI

Built 2000 Load: 34.0 t ADT: 2,900

USH 53 SB

Fair

Over: DUNCAN CREEK

4.2M S JCT STH 40 TO N, Chippewa, WI

Built 1971 Load: 34.0 t ADT: 15,800

USH 53 N

Fair

Over: DUNCAN CREEK

4.0M N JCT CTH B TO E, Chippewa, WI

Built 1971 Load: 34.0 t ADT: 7,900

STH 124

Fair

Over: ONEIL CREEK

1.0M N JCT CTH B, Chippewa, WI

Built 1979 Load: 34.0 t ADT: 3,200

Showing 5,851-5,900 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.