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 FIRE LANE RD

Good

Over: DEVILS CREEK

0.9M N JCT CTH O-49, Rusk, WI

Built 2001 Load: 47.0 t ADT: 107

LRD KINGS CORNER R

Good

Over: OTTER CREEK

1.5M W JCT USH 12, Sauk, WI

Built 1990 Load: 47.0 t ADT: 188

LRD NARROWS VALLEY

Good

Over: NARROWS CR

AT NARROWS CREEK, Sauk, WI

Built 2004 Load: 47.0 t ADT: 192

STH 70

Good

Over: THORNAPPLE RIVER

2.0M E JCT CTH EE, Sawyer, WI

Built 1999 Load: 47.0 t ADT: 960

LRD WILD LIFE RD

Good

Over: W BR SHIOC RIVER

1.7M W JCT STH 47, Shawano, WI

Built 1993 Load: 47.0 t ADT: 100

STH 47

Good

Over: BR HERMAN CREEK

1.0M S JCT STH 156 TO E, Shawano, WI

Built 2007 Load: 47.0 t ADT: 5,300

CTH S

Good

Over: S FK WILLOW RIVER

0.7M E JCT CTH O TO S, St. Croix, WI

Built 1982 Load: 47.0 t ADT: 150

LRD PIERCE - ST CR

Good

Over: CADY CREEK

1.1M E JCT STH 128, St. Croix, WI

Built 1987 Load: 47.0 t ADT: 65

LRD 160 TH. STREET

Good

Over: KINNICKINNIC RIVER

0.1M S JCT CTH E, St. Croix, WI

Built 1992 Load: 47.0 t ADT: 165

USH 12

Good

Over: BR CARR CREEK

3.5M E JCT USH 63 TO S, St. Croix, WI

Built 1996 Load: 47.0 t ADT: 2,900

LRD RUSTIC RD #4

Good

Over: BEAVER CREEK

1.2M N JCT CTH W, St. Croix, WI

Built 1995 Load: 47.0 t ADT: 65

LRD SANDY CREEK RD

Good

Over: SANDY CREEK

0.7M S OF JCT CTH X, St. Croix, WI

Built 1998 Load: 47.0 t ADT: 170

LRD 170TH AVE

Good

Over: HUTTON CREEK

0.4M E JCT CTH O, St. Croix, WI

Built 1977 Load: 47.0 t ADT: 152

CTH T

Good

Over: BR RUSH RIVER

1.6M N JCT CTH M, St. Croix, WI

Built 1978 Load: 47.0 t ADT: 1,688

STH 121

Good

Over: BIG SLOUGH CREEK

1.3M E JCT USH 53 TO N, Trempealeau, WI

Built 2004 Load: 47.0 t ADT: 1,100

LRD E SECOND ST

Good

Over: TAPPEN CREEK

0.3 M E JCT STH 95, Trempealeau, WI

Built 2004 Load: 47.0 t ADT: 286

LRD CHEYENNE RD

Good

Over: CHEYENNE VALLEY CREEK

0.1M S JCT STH 33, Vernon, WI

Built 1997 Load: 47.0 t ADT: 22

LRD SMART HOLLOW R

Good

Over: BR W FK KICKAPOO RIVER

0.5M E JCT CTH S, Vernon, WI

Built 2002 Load: 47.0 t ADT: 42

LRD WEST TAINTER H

Good

Over: TAINTER HOLLOW CREEK

4.7M S JCT STH 27, Vernon, WI

Built 2002 Load: 47.0 t ADT: 47

LRD CEMETERY RD (D

Good

Over: VICTORY CREEK

0.1M N JCT CTH UU, Vernon, WI

Built 2003 Load: 47.0 t ADT: 21

LRD CUT- OFF RD

Good

Over: WARNER CREEK

0.1M S JCT CTH P, Vernon, WI

Built 2005 Load: 47.0 t ADT: 26

LRD DELL ROAD

Good

Over: BR WEISTER CREEK

1.8M N JCT CTH P, Vernon, WI

Built 1981 Load: 47.0 t ADT: 94

LRD SALISBURY RD

Good

Over: TOTOGATIC RIVER

2.8M W JCT CTH G, Washburn, WI

Built 2006 Load: 47.0 t ADT: 104

CTH P

Good

Over: ASHIPPUN RIVER

0.5M S JCT CTH CW, Waukesha, WI

Built 1998 Load: 47.0 t ADT: 5,500

LRD WISCONSIN AVE

Good

Over: OCONOMOWOC RIVER

0.5M E JCT CTH P, Waukesha, WI

Built 1990 Load: 47.0 t ADT: 1,600

LRD MILL ROAD

Good

Over: FOX RIVER

0.8M E JCT CTH Y, Waukesha, WI

Built 1999 Load: 47.0 t ADT: 480

LRD NORTH LAKE ROA

Good

Over: LAC LA BELLE LAKE

0.4M N JCT STH 16, Waukesha, WI

Built 1949 Load: 47.0 t ADT: 5,700

LRD RAILROAD GRADE

Good

Over: WALLA WALLA CREEK

0.8M W JCT CTH U, Waupaca, WI

Built 1990 Load: 47.0 t ADT: 552

LRD RAILROAD GRADE

Good

Over: MOSQUITO CREEK

0.3M W JCT USH 10, Waupaca, WI

Built 1990 Load: 47.0 t ADT: 5

STH 22

Good

Over: WAUTOMA POND

0.3M N JCT STH 73, Waushara, WI

Built 1998 Load: 47.0 t ADT: 3,300

STH 21

Good

Over: MANSKE DITCH #1

1.1M E JCT STH 49, Waushara, WI

Built 1998 Load: 47.0 t ADT: 5,000

LRD COUNTY LINE RO

Good

Over: BR CRANBERRY CREEK

5.4M W JCT CTH G, Wood, WI

Built 2007 Load: 47.0 t ADT: 20

LRD BATTERMAN RD

Good

Over: BR CRANBERRY CREEK

5.7M W JCT CTH G, Wood, WI

Built 2007 Load: 47.0 t ADT: 20

LRD WASHINGTON AVE

Good

Over: MILL CREEK

0.7M N JCT USH 10, Wood, WI

Built 2007 Load: 47.0 t ADT: 980

LRD 1ST AVE

Good

Over: CAT CREEK

0.1M W JCT STH 80, Wood, WI

Built 2007 Load: 47.0 t ADT: 570

LRD BATTERMAN RD

Good

Over: CRANBERRY CREEK

3.7M W JCT CTH G, Wood, WI

Built 2008 Load: 47.0 t ADT: 41

USH 8

Good

Over: SCOTT CREEK

2.1M E JCT CTH YY, Lincoln, WI

Built 2022 Load: 47.3 t ADT: 2,400

SOUTH A STREET

Good

Over: TARR CREEK

So. A St. over Tarr Creek, Monroe, WI

Built 1996 Load: 47.3 t ADT: 2,000

STH 20

Good

Over: HONEY CREEK

1.5 MI E JCT IH 43, Walworth, WI

Built 2010 Load: 47.3 t ADT: 5,300

IRR BIA RTE 9

Good

Over: KESHENA POWER CANAL

2 KM NORTH OF KESHENA, Menominee, WI

Built 1996 Load: 47.4 t ADT: 300

STACEY DAM ROAD

Good

Over: LITTLE WEST BRANCH CREEK

11.6KM EAST OF NEOPIT, Menominee, WI

Built 2007 Load: 47.4 t ADT: 50

STH 48

Good

Over: DRAINAGE WAY

0.1 MI E JCT 16 1/2 ST., Barron, WI

Built 2018 Load: 47.6 t ADT: 4,900

USH 12-USH 18

Good

Over: MUD CREEK

0.3M E JCT STH 73 TO S, Dane, WI

Built 1988 Load: 47.6 t ADT: 10,000

STH 169

Good

Over: VAUGHN CR

0.75M N RAILROAD TRESTLE, Iron, WI

Built 2016 Load: 47.6 t ADT: 270

CTH SN

Good

Over: BR SAND LAKE COULEE CRK

0.4M N JCT CTH OT, La Crosse, WI

Built 2019 Load: 47.6 t ADT: 6,300

LRD N RIVER RD

Good

Over: INDIAN CREEK

1.2M N JCT CTH PP, Milwaukee, WI

Built 1942 Load: 47.6 t ADT: 861

LRD WOODLAND ROAD

Good

Over: UNNAMED STREAM

500' E JCT BRIDGEWOOD RD, Sheboygan, WI

Built 2023 Load: 47.6 t ADT: 75

IH 41SB/IH 94 EB

Good

Over: OAK CREEK

0.25 MI S JCT STH 100, Milwaukee, WI

Built 2019 Load: 48.0 t ADT: 51,000

LRD ISLAND STREET

Good

Over: FOX RIVER TAIL RACE

0.1 M N JCT CTH Z, Outagamie, WI

Built 2022 Load: 48.0 t ADT: 6,650

STH 70

Good

Over: YELLOW RIVER

1.2 MI E USH 63, Washburn, WI

Built 2023 Load: 48.0 t ADT: 6,000

Showing 13,651-13,700 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.