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 GREEN BAY RD

Fair

Over: CEDAR CREEK

0.8M S JCT CTH T, Ozaukee, WI

Built 1984 Load: 32.4 t ADT: 4,800

CTH C PIONEER RD

Fair

Over: ULAO CREEK

0.4M W JCT CTH W, Ozaukee, WI

Built 1988 Load: 32.4 t ADT: 9,900

CTH T

Fair

Over: MILWAUKEE RIVER

0.9M W JCT CTH W, Ozaukee, WI

Built 1992 Load: 32.4 t ADT: 6,000

LRD E BRIDGE ST

Fair

Over: CEDAR CREEK

0.1M JCT WASHINGTON AVE, Ozaukee, WI

Built 1929 Load: 32.4 t ADT: 4,400

LRD HIGHLAND DR

Fair

Over: CEDAR CREEK

0.1M S JCT COLUMBIA ROAD, Ozaukee, WI

Built 1939 Load: 32.4 t ADT: 1,410

CTH N

Fair

Over: ARKANSAW CREEK

0.2M S JCT USH 10, Pepin, WI

Built 1981 Load: 32.4 t ADT: 862

LRD BOYD SPRING RD

Fair

Over: PLUM CREEK

1.6M N JCT CTH N, Pepin, WI

Built 1984 Load: 32.4 t ADT: 58

CTH CC

Fair

Over: BR LOST CREEK

2.0M N JCT STH 35, Pepin, WI

Built 1990 Load: 32.4 t ADT: 488

STH 35

Fair

Over: BR ISABELLE CREEK

1.3M N JCT CTH D, Pierce, WI

Built 1955 Load: 32.4 t ADT: 2,500

USH 63

Fair

Over: MISS R WIS CHANNEL

1.4M N MINN STATE LINE, Pierce, WI

Built 1960 Load: 32.4 t ADT: 9,600

CTH KK

Fair

Over: BR LITTLE TRIMBELLE CRK

0.9M E JCT CTH K, Pierce, WI

Built 1992 Load: 32.4 t ADT: 397

STH 72

Fair

Over: BR EAU GALLE RIVER

1.5M E JCT CTH PP, Pierce, WI

Built 1982 Load: 32.4 t ADT: 810

USH 10

Fair

Over: BR SPRING CREEK

0.8M E JCT CTH J TO N, Pierce, WI

Built 1983 Load: 32.4 t ADT: 3,800

USH 10

Fair

Over: BR RUSH RIVER

2.4M E JCT CTH D, Pierce, WI

Built 1986 Load: 32.4 t ADT: 2,500

STH 35

Fair

Over: BR DRY RUN COULEE CRK

2.9M N JCT CTH QQ TO N, Pierce, WI

Built 1987 Load: 32.4 t ADT: 2,600

STH 35

Fair

Over: BR ISABELLE CREEK

2.0M N JCT CTH D, Pierce, WI

Built 1992 Load: 32.4 t ADT: 3,600

CTH O

Fair

Over: BR TRIMBELLE RIVER

0.9M N JCT USH 10, Pierce, WI

Built 1996 Load: 32.4 t ADT: 957

CTH S

Fair

Over: DRY RUN

0.1M N OF CTHX, Pierce, WI

Built 2000 Load: 32.4 t ADT: 309

LRD 450TH AVE

Fair

Over: ISABELLE CREEK

.2 MILE E OF CTY C, Pierce, WI

Built 1983 Load: 32.4 t ADT: 87

LRD 330TH AVE

Fair

Over: PLUM CREEK

0.1M W JCT CTH S, Pierce, WI

Built 1981 Load: 32.4 t ADT: 93

CTH A

Fair

Over: BR RUSH RIVER

3.6M S JCT USH 10, Pierce, WI

Built 1947 Load: 32.4 t ADT: 202

CTH F

Fair

Over: BULL BROOK

1.5M S JCT CTH J, Polk, WI

Built 1978 Load: 32.4 t ADT: 1,519

LRD 285TH AVE.

Fair

Over: TRADE RIVER

4.2M W JCT STH 87, Polk, WI

Built 1985 Load: 32.4 t ADT: 21

LRD 50TH STREET

Fair

Over: BEAVER BROOK

1.3M S JCT CTH D, Polk, WI

Built 1974 Load: 32.4 t ADT: 553

LRD 40TH ST

Fair

Over: WILLOW RIVER

1.8M S JCT CTH A, Polk, WI

Built 1948 Load: 32.4 t ADT: 802

LRD EVERGREEN AVE

Fair

Over: WOLF CREEK

1.5M W JCT STH 87, Polk, WI

Built 1989 Load: 32.4 t ADT: 189

IH USH 51-IH 39

Fair

Over: BR WISCONSIN RIVER

0.7M N JCT STH 54 TO E, Portage, WI

Built 1969 Load: 32.4 t ADT: 14,100

CTH C

Fair

Over: MILL CREEK

2.5M E JCT CTH II, Portage, WI

Built 1971 Load: 32.4 t ADT: 900

CTH UU ELM ROAD

Fair

Over: DITCH NO 7

0.3M N JCT CTH D, Portage, WI

Built 1985 Load: 32.4 t ADT: 170

CTH UU ELM ROAD

Fair

Over: DITCH NO 10

2.1M N JCT CTH D, Portage, WI

Built 1985 Load: 32.4 t ADT: 170

CTH UU ELM ROAD

Fair

Over: DITCH NO 5

2.9M N JCT CTH D, Portage, WI

Built 1985 Load: 32.4 t ADT: 173

LRD HH / CHURCH ST

Fair

Over: PLOVER RIVER

0.1M W JCT USH B51, Portage, WI

Built 1999 Load: 32.4 t ADT: 5,285

CTH M

Fair

Over: TRIB MILL CREEK

1.43 MI W. JCT CTY HH, Portage, WI

Built 2008 Load: 32.4 t ADT: 516

LRD N RESERVE DRIV

Fair

Over: HAY MEADOW CREEK

2.5M N JCT USH 51, Portage, WI

Built 1994 Load: 32.4 t ADT: 1,700

STH 13

Fair

Over: SMITH CREEK

1.5M N JCT STH 182, Price, WI

Built 1964 Load: 32.4 t ADT: 3,100

STH 13

Fair

Over: SMITH CREEK

1.7M N JCT STH 182, Price, WI

Built 1964 Load: 32.4 t ADT: 3,100

CTH N

Fair

Over: WEB CREEK

4.4M S USH 8, Price, WI

Built 1995 Load: 32.4 t ADT: 204

STH 38

Fair

Over: HOODS CREEK

1.4 MI N JCT STH 31, Racine, WI

Built 1953 Load: 32.4 t ADT: 14,700

LRD HANSON RD

Fair

Over: GOOSE LAKE BRANCH CANAL

0.7M E JCT CTH S, Racine, WI

Built 1997 Load: 32.4 t ADT: 170

STH 20 EB

Fair

Over: CNW RR

3.9M E JCT IH 94 TO W, Racine, WI

Built 1978 Load: 32.4 t ADT: 14,500

STH 142

Fair

Over: HOOSIER CREEK

0.7 MI E JCT STH 83, Racine, WI

Built 1999 Load: 32.4 t ADT: 4,600

LRD BRIDGE ST

Fair

Over: WIS. CENTRAL RR

0.1 M E JCT STH 183, Racine, WI

Built 2002 Load: 32.4 t ADT: 4,700

LRD BIENEMAN RD

Fair

Over: WHITE RIVER

0.1M N JCT STH 11, Racine, WI

Built 1973 Load: 32.4 t ADT: 790

CTH A

Fair

Over: E BR ROOT RIVER CANAL

0.8M W JCT CTH C, Racine, WI

Built 1965 Load: 32.4 t ADT: 2,400

USH 14

Fair

Over: PINE RIVER

3.9M E JCT CTH ZZ, Richland, WI

Built 1980 Load: 32.4 t ADT: 3,600

STH 193

Fair

Over: HOOSIER CREEK

1.1M N JCT STH 60, Richland, WI

Built 1981 Load: 32.4 t ADT: 1,500

STH 171

Fair

Over: HALLS BOTTOM CREEK

2.6M E JCT CTH U TO S, Richland, WI

Built 1981 Load: 32.4 t ADT: 350

LRD CUPP LANE (DEA

Fair

Over: BR FANCY CREEK

0.1M S JCT CTH Z, Richland, WI

Built 1984 Load: 32.4 t ADT: 26

LRD ECHO GLEN ROAD

Fair

Over: KNAPP CREEK

0.1M E JCT CTH F, Richland, WI

Built 1988 Load: 32.4 t ADT: 57

LRD VIVIAN"S LANE

Fair

Over: BRUSH CREEK

0.1M N JCT USH 14, Richland, WI

Built 1992 Load: 32.4 t ADT: 700

Showing 5,651-5,700 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.