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 LAKEHEAD RD

Good

Over: BOOMER CREEK

2.2M N JCT USH 2, Iron, WI

Built 1995 Load: 40.5 t ADT: 98

STH 169

Good

Over: POTATO RIVER

13.9M N JCT STH 13, Iron, WI

Built 1998 Load: 40.5 t ADT: 270

LRD NYLUND ROAD

Good

Over: MONTREAL RIVER

TOWN OF KIMBALL, Iron, WI

Built 1991 Load: 40.5 t ADT: 56

CTH VV

Good

Over: BLACK RIVER CHANNEL

1.7M S JCT STH 54, Jackson, WI

Built 1985 Load: 40.5 t ADT: 510

LRD HOGG STREET

Good

Over: DOUGLAS CREEK

0.2M E JCT STH 54, Jackson, WI

Built 1991 Load: 40.5 t ADT: 247

LRD LINCOLN ROAD

Good

Over: PINE CREEK

1.1M N JCT CTH P, Jackson, WI

Built 1994 Load: 40.5 t ADT: 47

LRD SANDBERG RD

Good

Over: MILL CREEK

0.2M N JCT STH 54, Jackson, WI

Built 1997 Load: 40.5 t ADT: 163

LRD SPERBER RD

Good

Over: N FORK BUFFALO RIVER

.1 M N USH 10, Jackson, WI

Built 1997 Load: 40.5 t ADT: 1

LRD S DAVIS RD

Good

Over: PINE CREEK

1.0M S JCT STH 95, Jackson, WI

Built 1999 Load: 40.5 t ADT: 1

USH 12-STH 27-HAMM

Good

Over: HALLS CREEK

0.4M E JCT STH 95 (F), Jackson, WI

Built 2003 Load: 40.5 t ADT: 1,800

LRD W KENYON RD

Good

Over: BR SQUAW CREEK

2.8M W JCT STH 54, Jackson, WI

Built 2018 Load: 40.5 t ADT: 50

LRD MOE ROAD (EAST

Good

Over: NORTH FORK BUFFALO RIVER

0.2 MI NORTH OF JUNCTION, Jackson, WI

Built 2022 Load: 40.5 t ADT: 100

LRD MARSH ROAD

Good

Over: JOHNSON CREEK

0.2M N JCT CTH Y, Jefferson, WI

Built 1990 Load: 40.5 t ADT: 226

LRD GREEN ISLE DR

Good

Over: BARK RIVER

0.4M E JCT CTH D, Jefferson, WI

Built 1993 Load: 40.5 t ADT: 195

LRD UNION ST

Good

Over: JOHNSON CREEK

0.4M W JCT STH 26, Jefferson, WI

Built 1997 Load: 40.5 t ADT: 3,900

LRD MARKERT RD

Good

Over: DUCK CREEK

1.3M E JCT CTH D, Jefferson, WI

Built 1999 Load: 40.5 t ADT: 54

LRD CHURCH ST

Good

Over: ROCK RIVER

0.7M S JCT STH 19, Jefferson, WI

Built 2003 Load: 40.5 t ADT: 9,495

LRD CHURCH ST

Good

Over: ROCK RIVER

1.0M N JCT CTH Y TO E, Jefferson, WI

Built 2003 Load: 40.5 t ADT: 9,811

CTH F

Good

Over: CTH OCONOMOWOC RIVER

0.7M N JCT IH 94 TO E, Jefferson, WI

Built 2006 Load: 40.5 t ADT: 4,095

LRD MILWAUKEE ST

Good

Over: ROCK RIVER

0.6M S JCT STH 19, Jefferson, WI

Built 2008 Load: 40.5 t ADT: 8,216

STH 58

Good

Over: ONE MILE CREEK

1.9M N JCT CTH O, Juneau, WI

Built 2000 Load: 40.5 t ADT: 5,100

STH 80

Good

Over: SHERMAN CR

0.1M S CTH H, Juneau, WI

Built 2005 Load: 40.5 t ADT: 1,600

CTH I

Good

Over: SCHMIDT CREEK

0.8M E JCT CTH G TO N, Juneau, WI

Built 2005 Load: 40.5 t ADT: 262

CTH H

Good

Over: BEAVER CREEK

4.4M N JCT STH 21, Juneau, WI

Built 1967 Load: 40.5 t ADT: 119

STH 165 WB

Good

Over: C & N.W. RR

0.5 MI W JCT STH 31, Kenosha, WI

Built 1993 Load: 40.5 t ADT: 8,900

STH 165 EB

Good

Over: C & N.W. RR

0.7 MI E JCT CTH H, Kenosha, WI

Built 1993 Load: 40.5 t ADT: 8,900

STH 32

Good

Over: PIKE R

AT PIKE RIVER, Kenosha, WI

Built 2005 Load: 40.5 t ADT: 9,900

CTH S WB

Good

Over: KILBOURN ROAD DITCH

AT KILBOURN ROAD DITCH, Kenosha, WI

Built 2020 Load: 40.5 t ADT: 9,355

CTH G

Good

Over: E TWIN RIVER

1.0M E JCT CTH B, Kewaunee, WI

Built 1997 Load: 40.5 t ADT: 253

LRD GILLS COULEE R

Good

Over: GILLS COULEE CREEK

2.4M N JCT STH 16, La Crosse, WI

Built 1992 Load: 40.5 t ADT: 25

LRD KIEL COULEE RD

Good

Over: KIEL COULEE CREEK

1.5M S JCT CTH B, La Crosse, WI

Built 1992 Load: 40.5 t ADT: 470

STH 16-STH 162

Good

Over: BURNS CREEK

0.1M E JCT STH 162 TO N, La Crosse, WI

Built 1995 Load: 40.5 t ADT: 5,000

CTH J

Good

Over: FISH CREEK

0.7M S JCT CTH B, La Crosse, WI

Built 2019 Load: 40.5 t ADT: 340

LRD MARKET ST

Good

Over: BONNER BRANCH

0.1M E JCT USH 151, Lafayette, WI

Built 1985 Load: 40.5 t ADT: 517

LRD AETNA RD

Good

Over: SHULLSBURG BRANCH

1.1M E JCT CTH I, Lafayette, WI

Built 1993 Load: 40.5 t ADT: 61

LRD MINE RD

Good

Over: GALENA RIVER

0.7M S JCT STH 81, Lafayette, WI

Built 1992 Load: 40.5 t ADT: 172

CTH G

Good

Over: BONNER BRANCH

2.1M E JCT STH 126, Lafayette, WI

Built 1992 Load: 40.5 t ADT: 345

LRD CUB HOLLOW RD

Good

Over: COPPER CREEK

1.7M N JCT STH 11, Lafayette, WI

Built 1994 Load: 40.5 t ADT: 88

LRD ROWESVILLE RD

Good

Over: BR MADDEN BRANCH

2.4M N JCT CTH Q, Lafayette, WI

Built 1994 Load: 40.5 t ADT: 58

LRD BROWN RD

Good

Over: BROWN BROOK

0.7M N JCT CTH DD, Lafayette, WI

Built 1996 Load: 40.5 t ADT: 1

CTH O

Good

Over: FURNACE CREEK

3.0M N JCT CTH C, Lafayette, WI

Built 1998 Load: 40.5 t ADT: 238

LRD ROCKY RD

Good

Over: AMES BRANCH

0.4M S JCT CTH E, Lafayette, WI

Built 1998 Load: 40.5 t ADT: 67

STH 78

Good

Over: SAWMILL CREEK

2.5M N JCT CTH A, Lafayette, WI

Built 2003 Load: 40.5 t ADT: 873

LRD ORMSBY RD

Good

Over: W BR EAU CLAIRE RIVER

2.5M N JCT CTH C, Langlade, WI

Built 1989 Load: 40.5 t ADT: 178

STH 64

Good

Over: S BR OCONTO RIVER

2.6M E JCT STH 55, Langlade, WI

Built 1997 Load: 40.5 t ADT: 1,600

CTH A

Good

Over: LILY RIVER

0.1M W JCT STH 52, Langlade, WI

Built 2003 Load: 40.5 t ADT: 215

LRD HILLVIEW ROAD

Good

Over: BR PINE RIVER

0.9M S JCT STH 64, Lincoln, WI

Built 1990 Load: 40.5 t ADT: 41

LRD WEGNER RD

Good

Over: COPPER RIVER

1.5M N JCT CTH M, Lincoln, WI

Built 1994 Load: 40.5 t ADT: 58

LRD COUNTY LINE RO

Good

Over: CAIN CREEK

0.6M E JCT CTH X, Lincoln, WI

Built 1994 Load: 40.5 t ADT: 46

CTH A

Good

Over: NOISY CREEK

0.9M S JCT STH 17, Lincoln, WI

Built 2003 Load: 40.5 t ADT: 581

Showing 12,601-12,650 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.