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 58

Good

Over: LITTLE ONE MILE CREEK

0.8M N JCT CTH I, Juneau, WI

Built 2000 Load: 35.6 t ADT: 2,100

LRD 28TH AVE

Good

Over: LYNDON CREEK

0.6M N JCT CTH N, Juneau, WI

Built 2006 Load: 35.6 t ADT: 52

LRD EISFELDT RD

Good

Over: BEAVER CREEK

0.5M E JCT CTH H, Juneau, WI

Built 1969 Load: 35.6 t ADT: 33

CTH G

Good

Over: PIKE RIVER

0.3M N JCT CTH A, Kenosha, WI

Built 2002 Load: 35.6 t ADT: 1,900

STH 165 EB

Good

Over: SOO LINE RR

1.9M E JCT IH 94 TO E, Kenosha, WI

Built 1989 Load: 35.6 t ADT: 6,800

STH 165 WB

Good

Over: SOO LINE RR

0.2M W JCT CTH H, Kenosha, WI

Built 1989 Load: 35.6 t ADT: 6,800

CTH A

Good

Over: PIKE RIVER

0.6M W JCT STH 32, Kenosha, WI

Built 2003 Load: 35.6 t ADT: 2,200

STH 50 WB

Good

Over: CNW RR

0.5M W JCT STH 31, Kenosha, WI

Built 2022 Load: 35.6 t ADT: 18,250

STH 165 WB

Good

Over: DES PLAINES RIVER

1.2 MI E JCT IH 94, Kenosha, WI

Built 2017 Load: 35.6 t ADT: 11,100

CTH WG

Good

Over: DUTCH GAP CANAL

1.0M E JCT USH 45, Kenosha, WI

Built 2022 Load: 35.6 t ADT: 6,600

LRD NORMAN RD

Good

Over: EAST TWIN RIVER

1.3M S JCT CTH G, Kewaunee, WI

Built 1993 Load: 35.6 t ADT: 147

CTH S

Good

Over: RIO CREEK

1.1M E JCT CTH P, Kewaunee, WI

Built 1993 Load: 35.6 t ADT: 450

CTH K

Good

Over: RIO CREEK

0.4M W JCT STH 54, Kewaunee, WI

Built 2003 Load: 35.6 t ADT: 372

LRD CTH BB

Good

Over: JAMBO CREEK

0.75M E JCT CTH Q, Kewaunee, WI

Built 2011 Load: 35.6 t ADT: 840

USH 14-USH 61

Good

Over: MORMON CREEK

2.3M E JCT CTH MM TO S, La Crosse, WI

Built 1999 Load: 35.6 t ADT: 6,200

LRD HERMANN ROAD

Good

Over: BIG CREEK

1.2M N JCT STH 16, La Crosse, WI

Built 1998 Load: 35.6 t ADT: 43

STH 108

Good

Over: FLEMING CREEK

.01M N JCT CTH DE, La Crosse, WI

Built 2005 Load: 35.6 t ADT: 2,800

CTH B - CLINTON ST

Good

Over: RICHMOND BAY

0.52 MI W OF USH 53, La Crosse, WI

Built 2004 Load: 35.6 t ADT: 7,000

CTH B

Good

Over: BOSTWICK CREEK

2 MI W OF JCT CTH M, La Crosse, WI

Built 2017 Load: 35.6 t ADT: 1,300

CTH X

Good

Over: BERGE COULEE CREEK

0.5M N JCT CTH P, La Crosse, WI

Built 2020 Load: 35.6 t ADT: 80

LRD SARGENT RD

Good

Over: PECATONICA RIVER

0.7M S JCT STH 176, Lafayette, WI

Built 1983 Load: 35.6 t ADT: 81

CTH M

Good

Over: E BR PECATONICA RIVER

0.2M W JCT CTH Y, Lafayette, WI

Built 1985 Load: 35.6 t ADT: 345

CTH W

Good

Over: COON BRANCH

0.6M W JCT CTH J, Lafayette, WI

Built 1986 Load: 35.6 t ADT: 446

LRD ENCH RD

Good

Over: SCRABBLE BRANCH

2.4M S JCT CTH W, Lafayette, WI

Built 1991 Load: 35.6 t ADT: 42

STH 23

Good

Over: BR AMES BRANCH

0.3M E JCT CTH E, Lafayette, WI

Built 1990 Load: 35.6 t ADT: 3,000

LRD W MOUND RD

Good

Over: BR MOUNDS BRANCH

1.0M W JCT CTH G, Lafayette, WI

Built 1994 Load: 35.6 t ADT: 165

LRD FORT DEFIANCE

Good

Over: BR OTTER CREEK

1.3M E JCT STH 23, Lafayette, WI

Built 1998 Load: 35.6 t ADT: 133

LRD FRITZGES ROAD

Good

Over: TURTLE CREEK

1.9M N JCT CTH DD, Lafayette, WI

Built 1998 Load: 35.6 t ADT: 83

USH 151 SB

Good

Over: PECATONICA RIVER

0.9M S JCT CTH A, Lafayette, WI

Built 2003 Load: 35.6 t ADT: 5,250

LRD KENNEDY RD

Good

Over: BULL BRANCH

BULL BRANCH, Lafayette, WI

Built 2003 Load: 35.6 t ADT: 107

STH 11

Good

Over: SPAFFORD CREEK

3.7M E JCT CTH KK, Lafayette, WI

Built 2006 Load: 35.6 t ADT: 4,600

CTH I

Good

Over: KELSEY BRANCH

2.3M S JCT CTH W, Lafayette, WI

Built 2018 Load: 35.6 t ADT: 120

CTH D

Good

Over: PECATONICA RIVER

0.4M N JCT STH 11, Lafayette, WI

Built 2022 Load: 35.6 t ADT: 890

CTH C

Good

Over: LLOYD CR

2.1M W CTH H, Langlade, WI

Built 2012 Load: 35.6 t ADT: 822

LRD CRANBERRY TRAI

Good

Over: N. FORK COPPER RIVER

1.9M N JCT CTH M, Lincoln, WI

Built 1998 Load: 35.6 t ADT: 147

LRD PRAIRIE DR

Good

Over: PRAIRIE RIVER

0.5M S JCT CTH J, Lincoln, WI

Built 1987 Load: 35.6 t ADT: 61

LRD CENTER ROAD

Good

Over: PINE RIVER

2.5M E JCT CTH W, Lincoln, WI

Built 1986 Load: 35.6 t ADT: 411

LRD BACHELORS AVE

Good

Over: PRAIRIE RIVER

0.3M N JCT STH 17, Lincoln, WI

Built 1990 Load: 35.6 t ADT: 58

CTH H

Good

Over: LITTLE PINE CREEK

1.2M E JCT CTH V, Lincoln, WI

Built 1990 Load: 35.6 t ADT: 208

LRD R AND H RD

Good

Over: PRAIRIE RIVER

0.5M E JCT STH 17, Lincoln, WI

Built 2002 Load: 35.6 t ADT: 80

CTH E

Good

Over: S BR NEW WOOD RIVER

2.5M N JCT CTH M, Lincoln, WI

Built 2005 Load: 35.6 t ADT: 105

STH 67

Good

Over: SHEBOYGAN RIVER

0.2M N JCT STH 32, Manitowoc, WI

Built 1989 Load: 35.6 t ADT: 8,700

LRD COLLINS RD

Good

Over: MANITOWOC RIVER

0.3M S JCT CTH JJ, Manitowoc, WI

Built 2001 Load: 35.6 t ADT: 162

CTH A

Good

Over: BR MANITOWOC RIVER

1.2M N JCT CTH C, Manitowoc, WI

Built 2001 Load: 35.6 t ADT: 1,450

LRD SILVER CREEK R

Good

Over: SILVER CREEK

0.3M W JCT CTH LS, Manitowoc, WI

Built 2005 Load: 35.6 t ADT: 105

LRD MICHIGAN AVE

Good

Over: MANITOWOC RIVER

0.8M W JCT STH 42, Manitowoc, WI

Built 2006 Load: 35.6 t ADT: 930

LRD VALLEY DR

Good

Over: SILVER CREEK

0.5M N JCT STH 42, Manitowoc, WI

Built 2009 Load: 35.6 t ADT: 157

LRD COUNTY LINE RD

Good

Over: PIGEON RIVER

0.2M W JCT STH 42, Manitowoc, WI

Built 2009 Load: 35.6 t ADT: 144

STH 42

Good

Over: UNNAMED TRIB TO LAKE MIC

0.2 MI S OF COUNTY LINE, Manitowoc, WI

Built 2015 Load: 35.6 t ADT: 1,300

CTH X

Good

Over: FISCHER CREEK

1.7M E OF STH 42, Manitowoc, WI

Built 2019 Load: 35.6 t ADT: 480

Showing 10,501-10,550 of 14,851 bridges

Related

All states → | National rankings → | Understanding conditions → | SD bridges explained →
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.