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

CTH D

Good

Over: LAKE NAMEKAGON

3.3M N JCT CTH M, Bayfield, WI

Built 2007 Load: 45.4 t ADT: 491

LRD LUXEMBURG ROAD

Good

Over: TRIB SCHOOL CREEK

0.9M E JCT CTH T, Brown, WI

Built 1979 Load: 45.4 t ADT: 311

LRD LAKE LARGO RD

Good

Over: MAHON CREEK

0.2M S JCT STH 54, Brown, WI

Built 1994 Load: 45.4 t ADT: 556

LRD RIVERVIEW RD (

Good

Over: LANCASTER BROOK

0.1M N JCT CTH J, Brown, WI

Built 1920 Load: 45.4 t ADT: 400

LRD WHELAN RD

Good

Over: TRIB BUFFALO RIVER

1.2M N JCT USH 10 & CTH H, Buffalo, WI

Built 1998 Load: 45.4 t ADT: 1

LRD WAUMANDEE CR R

Good

Over: WAUMANDEE CR

0.5 MI S STH 88, Buffalo, WI

Built 2004 Load: 45.4 t ADT: 52

LRD YELLOW RIVER R

Good

Over: YELLOW RIVER

2.9M E JCT CTH H, Burnett, WI

Built 1992 Load: 45.4 t ADT: 94

CTH J

Good

Over: STILLSON CREEK

935" E OF 185TH STREET, Chippewa, WI

Built 2009 Load: 45.4 t ADT: 750

STH 29

Good

Over: BR. HAY CREEK

6.7M E JCT STH 27, Chippewa, WI

Built 2009 Load: 45.4 t ADT: 16,100

LRD SANDY LANE ROA

Good

Over: DILL CREEK

0.3M W JCT CTH N, Clark, WI

Built 2005 Load: 45.4 t ADT: 105

LRD WILLOW RD

Good

Over: BR. N. FK. POPPLE RIVER

3.2M E JCT CTH D, Clark, WI

Built 2006 Load: 45.4 t ADT: 104

LRD OWEN AVE

Good

Over: CUNNINGHAM CREEK

0.7M N JCT STH 73, Clark, WI

Built 2008 Load: 45.4 t ADT: 94

STH 60

Good

Over: BOYDTOWN CREEK

2.8M E JCT STH 131, Crawford, WI

Built 2001 Load: 45.4 t ADT: 2,100

LRD STONEY POINT R

Good

Over: N BR COPPER CREEK

0.2M S JCT STH 171, Crawford, WI

Built 2003 Load: 45.4 t ADT: 137

LRD LACY RD

Good

Over: UNKNOWN LAND

0.1M W OF USH 14, Dane, WI

Built 2012 Load: 45.4 t ADT: 2,040

LRD STEWART'S WOOD

Good

Over: TRIBUTARY TO BADGER MILL

100 FT N JCT WILDCAT WAY, Dane, WI

Built 2020 Load: 45.4 t ADT: 3,400

LRD MICHIGAN STREE

Good

Over: STURGEON BAY

1.0M N JCT STH 42, Door, WI

Built 1930 Load: 45.4 t ADT: 8,300

STH 13

Good

Over: AMNICON RIVER

4.9M N JCT CTH D (A), Douglas, WI

Built 1985 Load: 45.4 t ADT: 1,900

CTH C

Good

Over: BR EAU GALLE RIVER

0.9M E JCT STH 72, Dunn, WI

Built 1991 Load: 45.4 t ADT: 162

STH 64

Good

Over: S FK HAY R

1.0M E JCT CTH Q, Dunn, WI

Built 2006 Load: 45.4 t ADT: 1,500

LRD LINCOLN DRIVE

Good

Over: RUSH CREEK

0.4M E USH 12, Eau Claire, WI

Built 1995 Load: 45.4 t ADT: 110

CTH H

Good

Over: HORSE CREEK

3.7M N CTH M, Eau Claire, WI

Built 1993 Load: 45.4 t ADT: 358

LRD E BUNTING RD

Good

Over: PINE CREEK

0.2M W USH 53, Eau Claire, WI

Built 2023 Load: 45.4 t ADT: 230

CTH N

Good

Over: LITTLE POPPLE RIVER

4.0M N JCT CTH B, Florence, WI

Built 1997 Load: 45.4 t ADT: 1,500

USH 151 SB

Good

Over: TAYCHEEDAH CREEK

TAYCHEEDAH CR, Fond du Lac, WI

Built 2003 Load: 45.4 t ADT: 8,400

TOWN LINE ROAD

Good

Over: VAN DYNE CREEK

0.3M S JCT LINCOLN RD., Fond du Lac, WI

Built 2021 Load: 45.4 t ADT: 260

LRD DARK HOLLOW RD

Good

Over: MILLVILLE CREEK

3.7M S JCT CTH C, Grant, WI

Built 1991 Load: 45.4 t ADT: 102

LRD BOWERS RD

Good

Over: BLUE RIVER

1.6M E JCT CTH G, Grant, WI

Built 1996 Load: 45.4 t ADT: 102

STH 35-STH 81

Good

Over: GRANT RIVER

5.0M N JCT CTH N, Grant, WI

Built 2009 Load: 45.4 t ADT: 1,500

STH 81

Good

Over: LITTLE PLATTE RIVER

0.3M E JCT CTH D, Grant, WI

Built 2006 Load: 45.4 t ADT: 4,700

STH 69

Good

Over: LITTLE SUGAR RIVER

0.2M N JCT STH 39 TO W, Green, WI

Built 1990 Load: 45.4 t ADT: 8,400

LRD BAGLEY ROAD

Good

Over: JUDA BRANCH

0.3M N JCT STH 11, Green, WI

Built 2006 Load: 45.4 t ADT: 104

LRD PUDDLE DOCK RD

Good

Over: PRAIRIE BROOK

1.5M W JCT CTH C, Green, WI

Built 2008 Load: 45.4 t ADT: 104

LRD MOUNDS VIEW RD

Good

Over: BR WILLIAMS CREEK

0.9M N JCT CTH F, Iowa, WI

Built 1991 Load: 45.4 t ADT: 156

LRD CAVE RD

Good

Over: PEDLER CREEK

1.1M S JCT STH 39, Iowa, WI

Built 1996 Load: 45.4 t ADT: 62

CTH K

Good

Over: E BR PECATONICA RIVER

0.1M E JCT CTH T, Iowa, WI

Built 2007 Load: 45.4 t ADT: 550

CTH B

Good

Over: BUFFALO CREEK

1.5M E JCT CTH T, Jackson, WI

Built 1994 Load: 45.4 t ADT: 190

LRD 11TH ST

Good

Over: LITTLE YELLOW RIVER

6.7M W JCT STH 80, Juneau, WI

Built 1991 Load: 45.4 t ADT: 23

CTH O FRANKLIN S

Good

Over: BARABOO RIVER

0.2M E JCT STH 80, Juneau, WI

Built 1997 Load: 45.4 t ADT: 1,410

STH 21-3RD ST

Good

Over: YELLOW RIVER OVERFLOW

0.3M E JCT STH 80, Juneau, WI

Built 2007 Load: 45.4 t ADT: 6,900

STH 158 WB

Good

Over: KILBOURN DITCH

0.1 MI E JCT IH 94, Kenosha, WI

Built 2013 Load: 45.4 t ADT: 9,900

LRD KRIEBICH COULE

Good

Over: MORMON CREEK

0.1M S JCT CTH M, La Crosse, WI

Built 1994 Load: 45.4 t ADT: 15

LRD JUSTIN RD (DEA

Good

Over: MORMON CREEK

0.4M S JCT USH 14, La Crosse, WI

Built 2002 Load: 45.4 t ADT: 200

STH 23

Good

Over: AMES BRANCH

3.8M N JCT STH 11, Lafayette, WI

Built 2008 Load: 45.4 t ADT: 2,000

CTH H

Good

Over: FEVER RIVER

3.3M E JCT CTH J, Lafayette, WI

Built 2009 Load: 45.4 t ADT: 312

LRD PINE RIVER RD

Good

Over: POINT CREEK

0.4M N JCT STH 42, Manitowoc, WI

Built 2007 Load: 45.4 t ADT: 117

LRD HILLCREST ROAD

Good

Over: BRANCH RIVER

LOCATION UNKNOWN, PLEASE, Manitowoc, WI

Built 2016 Load: 45.4 t ADT: 590

LRD BOBSIDING RD (

Good

Over: LITTLE WOLF RIVER

0.2M E JCT STH 49, Marathon, WI

Built 1991 Load: 45.4 t ADT: 30

STH 29 EB

Good

Over: PLOVER RIVER

3.9M E JCT CTH Q, Marathon, WI

Built 1995 Load: 45.4 t ADT: 6,500

STH 52

Good

Over: PLOVER R

0.1M E HATCHERY RD, Marathon, WI

Built 2002 Load: 45.4 t ADT: 1,700

Showing 13,451-13,500 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.