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

STH 54 EB OFF RAMP

Fair

Over: PARKING LOT

3.5M E JCT USH 41 TO S, Brown, WI

Built 1973 Load: 22.7 t ADT: 2,200

STH 54 EB OFF RAMP

Fair

Over: LAND

3.5M E JCT USH 41 TO S, Brown, WI

Built 1973 Load: 22.7 t ADT: 2,200

STH 25

Fair

Over: MISSISSIPPI RIVER SLOUGH

1.5M N MINN STATE LINE, Buffalo, WI

Built 1955 Load: 22.7 t ADT: 4,500

USH 10

Fair

Over: SESSION VALLEY CREEK

2.1M E JCT CTH BB, Buffalo, WI

Built 1960 Load: 22.7 t ADT: 2,700

CTH HH

Fair

Over: ARMOUR VALLEY CREEK

2.6M W JCT CTH BB, Buffalo, WI

Built 1922 Load: 22.7 t ADT: 444

CTH C

Fair

Over: BR SWINNS VALLEY CREEK

3.3M N JCT STH 95, Buffalo, WI

Built 1953 Load: 22.7 t ADT: 824

LRD SCHMIDT RD (DE

Fair

Over: LITTLE WAUMANDEE CREEK

0.1M W JCTSTH 88, Buffalo, WI

Built 1971 Load: 22.7 t ADT: 20

CTH BB

Fair

Over: KILLSNAKE RIVER

1.3M N JCT CTH E, Calumet, WI

Built 1969 Load: 22.7 t ADT: 2,400

STH 178

Fair

Over: ONEIL CREEK

2.8M N JCT CTH S, Chippewa, WI

Built 1956 Load: 22.7 t ADT: 4,400

CTH X 3RD ST

Fair

Over: POPPLE RIVER

0.5M W JCT CTH D, Clark, WI

Built 1925 Load: 22.7 t ADT: 3,480

LRD GRAND AVE (DEA

Fair

Over: ROCK CREEK

3.0M S JCT STH 95, Clark, WI

Built 1927 Load: 22.7 t ADT: 50

CTH V

Fair

Over: ROWAN CREEK @ LAKE WIS

0.5M N JCT CTH CS, Columbia, WI

Built 1970 Load: 22.7 t ADT: 990

LRD E BUSH RD

Fair

Over: N BR DUCK CREEK

2.1M S JCT CTH P, Columbia, WI

Built 1941 Load: 22.7 t ADT: 52

LRD TWITCHELL RD

Fair

Over: MID BR DUCK CREEK

0.2M N JCT CTH GG, Columbia, WI

Built 1963 Load: 22.7 t ADT: 88

CTH DG

Fair

Over: N BR CRAWFISH RIVER

0.4M S JCT CTH Z, Columbia, WI

Built 1961 Load: 22.7 t ADT: 107

LRD LARSON RD

Fair

Over: SAND SPRING CREEK

1.7M N JCT STH 33, Columbia, WI

Built 1945 Load: 22.7 t ADT: 33

STH 82

Fair

Over: BN RR/WINNESHIEK SLOUGH

2.2M E IOWA STATE LINE, Crawford, WI

Built 1956 Load: 22.7 t ADT: 2,700

USH 61-STH 131-4TH

Fair

Over: TROUT CREEK

1.1M N JCT STH 131 TO S, Crawford, WI

Built 1955 Load: 22.7 t ADT: 2,600

LRD HILLDALE RD

Fair

Over: BR WISCONSIN RIVER

1.0M N JCT STH 60, Crawford, WI

Built 1930 Load: 22.7 t ADT: 47

CTH G

Fair

Over: PRIMROSE BRANCH

0.6M N JCT CTH A, Dane, WI

Built 1953 Load: 22.7 t ADT: 1,900

CTH A

Fair

Over: PLEASANT VALLEY BRANCH

0.1M E JCT CTH H, Dane, WI

Built 1954 Load: 22.7 t ADT: 580

LRD SUN VALLEY PAR

Fair

Over: WISC-CALUMET RR

0.9M E JCT CTH PB, Dane, WI

Built 1937 Load: 22.7 t ADT: 168

LRD BLIVEN RD

Fair

Over: SAUNDERS CREEK

0.2M S JCT STH 106, Dane, WI

Built 1969 Load: 22.7 t ADT: 94

LRD MIDTOWN RD

Fair

Over: BR BADGER MILL CREEK

1.7M W JCT CTH M, Dane, WI

Built 1968 Load: 22.7 t ADT: 1,550

LRD GREENWAY RD

Fair

Over: MAUNESHA RIVER

1.6M E JCT USH 151, Dane, WI

Built 1985 Load: 22.7 t ADT: 290

LRD HALF MILE RD

Fair

Over: BR BADGER MILL CREEK

0.2M S JCT OLD 151, Dane, WI

Built 1901 Load: 22.7 t ADT: 10

LRD SHERMAN AVE

Fair

Over: YAHARA RIVER

0.5M N JCT USH 151, Dane, WI

Built 1934 Load: 22.7 t ADT: 4,450

LRD GERMAN ST

Fair

Over: ROCK RIVER

0.9M E JCT STH 28, Dodge, WI

Built 1960 Load: 22.7 t ADT: 834

CTH A

Fair

Over: PRATT CREEK

0.2M N JCT CTH I, Dodge, WI

Built 1964 Load: 22.7 t ADT: 5,400

CTH I

Fair

Over: PRATT CREEK

0.1M W JCT CTH A, Dodge, WI

Built 1957 Load: 22.7 t ADT: 316

LRD BURR OAK RD

Fair

Over: MUD CREEK

0.1M W JCT CTH II, Dodge, WI

Built 1931 Load: 22.7 t ADT: 58

LRD MARKET ST

Fair

Over: SPRING CREEK

0.2M E JCT STH 26, Dodge, WI

Built 1974 Load: 22.7 t ADT: 116

CTH N

Fair

Over: S FK HAY RIVER

2.8M W JCT CTH F, Dunn, WI

Built 1955 Load: 22.7 t ADT: 192

STH 25

Fair

Over: CNW RR

0.8M N JCT IH 94 TO E, Dunn, WI

Built 1959 Load: 22.7 t ADT: 7,100

LRD 90TH AVE

Fair

Over: COON CREEK

1.71 MILES EAST OF CTH H, Dunn, WI

Built 1919 Load: 22.7 t ADT: 78

CTH M

Fair

Over: BEAVER CREEK

0.1M N JCT STH 64, Dunn, WI

Built 1944 Load: 22.7 t ADT: 700

LRD 1170TH AVE (DE

Fair

Over: TROUT CREEK

0.4M W JCT CTH M, Dunn, WI

Built 1929 Load: 22.7 t ADT: 25

CTH D

Fair

Over: OTTER CREEK

0.3M E USH 53, Eau Claire, WI

Built 1968 Load: 22.7 t ADT: 358

CTH J

Fair

Over: OTTER CREEK

0.2M E USH 53, Eau Claire, WI

Built 1939 Load: 22.7 t ADT: 461

CTH D

Fair

Over: RUSH CREEK

2.0M N USH 12, Eau Claire, WI

Built 1919 Load: 22.7 t ADT: 1,383

CTH HH

Fair

Over: PINE CREEK

0.9M E STH 93, Eau Claire, WI

Built 1926 Load: 22.7 t ADT: 871

CTH W

Fair

Over: W BR MILWAUKEE RIVER

1.4M N JCT CTH BB, Fond du Lac, WI

Built 1962 Load: 22.7 t ADT: 960

LRD 2ND ST

Fair

Over: DE NEVEU CREEK

1.3 M W OF USH 151, 0.6 M, Fond du Lac, WI

Built 1961 Load: 22.7 t ADT: 1,175

CTH B

Fair

Over: LITTLE PLATE RIVER

2.8M W JCT STH 81, Grant, WI

Built 1952 Load: 22.7 t ADT: 1,325

LRD SINSINIWA RD

Fair

Over: SINSINIWA RIVER

2.4M W JCT STH 80, Grant, WI

Built 1961 Load: 22.7 t ADT: 91

CTH N

Fair

Over: PIGEON RIVER

2.7M S JCT STH 35, Grant, WI

Built 1962 Load: 22.7 t ADT: 477

LRD EBENEZER RD

Fair

Over: BR PLATTE RIVER

2.6M S JCT USH 18, Grant, WI

Built 1930 Load: 22.7 t ADT: 102

STH 92

Fair

Over: STORY CREEK

0.4M E JCT CTH X, Green, WI

Built 1959 Load: 22.7 t ADT: 1,800

CTH F

Fair

Over: SUGAR RIVER

0.6M W JCT STH 11, Green, WI

Built 1965 Load: 22.7 t ADT: 1,100

LRD DISCH RD

Fair

Over: W BR LITTLE SUGAR RIVER

0.7M S JCT CTH H, Green, WI

Built 1934 Load: 22.7 t ADT: 105

Showing 3,551-3,600 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.