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 RAINEY VALLEY

Good

Over: RAINEY VALLEY CREEK

0.1M N JCT CTH A, Trempealeau, WI

Built 2023 Load: 37.3 t ADT: 100

LRD NEWTON RD

Good

Over: WIRE HOLLOW CREEK

2.8M W JCT CTH O, Vernon, WI

Built 2009 Load: 37.3 t ADT: 144

LRD RIVER RD (DEAD

Good

Over: W FK KICKAPOO RIVER

0.2M S JCT CTH S, Vernon, WI

Built 1987 Load: 37.3 t ADT: 590

STH 35

Good

Over: SPRING COULEE CREEK

0.3M N JCT STH 56, Vernon, WI

Built 2020 Load: 37.3 t ADT: 5,000

LRD PODAWITZ RD

Good

Over: RILEY CREEK

1.8M N JCT STH 35, Vernon, WI

Built 1990 Load: 37.3 t ADT: 22

LRD NEWTON RD

Good

Over: DEADMAN HOLLOW CREEK

2.7M N JCT STH 56, Vernon, WI

Built 1991 Load: 37.3 t ADT: 89

STH 82

Good

Over: W FK KICKAPOO RIVER

0.1M E JCT CTH S, Vernon, WI

Built 1998 Load: 37.3 t ADT: 1,100

LRD WILLENBERG RD

Good

Over: BAD AXE RIVER

1.6M E JCT STH 35, Vernon, WI

Built 1999 Load: 37.3 t ADT: 43

LRD BIG VALLEY RD

Good

Over: WARNER CREEK

0.1M N JCT CTH P, Vernon, WI

Built 2000 Load: 37.3 t ADT: 17

LRD HALL RD (DEAD

Good

Over: ROCKY RUN

0.1M S JCT STH 82, Vernon, WI

Built 2000 Load: 37.3 t ADT: 16

STH 131-GARDEN ST

Good

Over: BRUSH CREEK

3.6M N JCT CTH F, Vernon, WI

Built 2002 Load: 37.3 t ADT: 890

STH 33

Good

Over: BILLINGS CREEK

0.1M E JCT CTH F, Vernon, WI

Built 2002 Load: 37.3 t ADT: 500

LRD NORSKE RD

Good

Over: SHERRY CREEK

0.1M S JCT CTH M, Vernon, WI

Built 2002 Load: 37.3 t ADT: 18

CTH NN

Good

Over: S FK BAD AXE RIVER

1.6M E JCT CTH N, Vernon, WI

Built 2004 Load: 37.3 t ADT: 127

LRD ELM DR (DEAD E

Good

Over: CHIPMUNK COULEE CREEK

0.1M S JCT CTH K, Vernon, WI

Built 2002 Load: 37.3 t ADT: 150

LRD WEST TAINTER H

Good

Over: BR TAINTER CREEK

4.0M S JCT STH 27, Vernon, WI

Built 2002 Load: 37.3 t ADT: 62

LRD PROKSCH COULEE

Good

Over: PROKSCH CREEK

3.5M N JCT STH 162, Vernon, WI

Built 2005 Load: 37.3 t ADT: 407

CTH N

Good

Over: PLUM CREEK

1.2M W JCT STH 155, Vilas, WI

Built 2022 Load: 37.3 t ADT: 1,624

STH 67

Good

Over: PISCASAW CREEK

3.0 MI W JCT STH 14, Walworth, WI

Built 1994 Load: 37.3 t ADT: 1,500

LRD LAUDERDALE DRI

Good

Over: GREEN LAKE

0.5MI W JCT STH 67, Walworth, WI

Built 2022 Load: 37.3 t ADT: 140

STH 70

Good

Over: YELLOW RIVER

0.1M E JCT CTH O, Washburn, WI

Built 1990 Load: 37.3 t ADT: 2,900

LRD BRIDGE RD

Good

Over: TOTOGATIC RIVER

1.5M N JCT STH 77, Washburn, WI

Built 1995 Load: 37.3 t ADT: 55

STH 70

Good

Over: WCL RAILROAD

0.1M E OF JCT CTH BB, Washburn, WI

Built 2003 Load: 37.3 t ADT: 2,600

CTH K

Good

Over: WISCONSIN CENTRAL LTD RR

0.1M W JCT USH41, Washington, WI

Built 2000 Load: 37.3 t ADT: 4,200

LRD STEEL CRAFT DR

Good

Over: RUBICON RIVER

0.1M N JCT STH 60, Washington, WI

Built 1988 Load: 37.3 t ADT: 351

LRD MILL ST

Good

Over: KOHLSVILLE RIVER

0.1M N JCT CTH D, Washington, WI

Built 1998 Load: 37.3 t ADT: 109

LRD MAIN STREET

Good

Over: MILWAUKEE RIVER

0.7M WEST OF STH 33, Washington, WI

Built 2004 Load: 37.3 t ADT: 1,900

CTH W

Good

Over: KOHLSVILLE R

0.1 MI N. OF CTH D, Washington, WI

Built 2005 Load: 37.3 t ADT: 1,400

CTH BB (GOLDEN LAK

Good

Over: OCONOMOWOC RIVER

0.8M N JCT CTH B, Waukesha, WI

Built 2000 Load: 37.3 t ADT: 2,700

CTH X (GENESEE RO

Good

Over: WISCONSIN & SOUTHERN RR

0.8M N JCT CTH D, Waukesha, WI

Built 1970 Load: 37.3 t ADT: 11,600

CTH K (LISBON RD)

Good

Over: FOX RIVER

0.4M W JCT CTH Y, Waukesha, WI

Built 1991 Load: 37.3 t ADT: 7,900

STH 59 WB

Good

Over: CANADIAN NATIONAL RR

0.6 MI W JCT STH 164, Waukesha, WI

Built 1999 Load: 37.3 t ADT: 11,950

LRD CTH Y (BARKER

Good

Over: POPLAR CREEK

0.2 M N JCT STH 59, Waukesha, WI

Built 1997 Load: 37.3 t ADT: 13,100

LRD KRETCHMER RD

Good

Over: LITTLE WOLF RIVER

0.1M W JCT CTH C, Waupaca, WI

Built 1979 Load: 37.3 t ADT: 173

LRD NEITZKE RD

Good

Over: S BR PIGEON RIVER

0.6M E JCT STH 110, Waupaca, WI

Built 1985 Load: 37.3 t ADT: 552

CTH A

Good

Over: WALLA WALLA CREEK

0.3M S JCT CTH EE, Waupaca, WI

Built 1989 Load: 37.3 t ADT: 755

STH 54

Good

Over: CEDAR CREEK

3.9M E JCT CTH B TO N, Waupaca, WI

Built 1996 Load: 37.3 t ADT: 6,900

STH 161

Good

Over: NORTH FORK BLAKE CREEK

1.6M E JCT CTH K TO S, Waupaca, WI

Built 1996 Load: 37.3 t ADT: 1,100

STH 110-MILLS ST

Good

Over: WAUPACA RIVER

1.3M N JCT USH 10 TO W, Waupaca, WI

Built 2003 Load: 37.3 t ADT: 5,600

STH 49

Good

Over: FLUME CREEK

2.0M N JCT CTH Z, Waupaca, WI

Built 2004 Load: 37.3 t ADT: 1,600

STH 110

Good

Over: S BR PIGEON RIVER

1.7M N JCT CTH C TO E, Waupaca, WI

Built 2004 Load: 37.3 t ADT: 820

CTH S

Good

Over: WILLOW CREEK

0.1M E JCT CTH Z, Waushara, WI

Built 1980 Load: 37.3 t ADT: 689

STH 49

Good

Over: PINE RIVER

0.1M N JCT CTH H TO W, Waushara, WI

Built 1987 Load: 37.3 t ADT: 2,300

STH 22

Good

Over: W BR WHITE RIVER

2.4M N JCT CTH YY, Waushara, WI

Built 2003 Load: 37.3 t ADT: 1,400

LRD WITZEL AVE.

Good

Over: SAWYER CREEK

0.4M W JCT USH 41, Winnebago, WI

Built 1972 Load: 37.3 t ADT: 13,300

CTH-R

Good

Over: WILLOW HARBOR CREEK

0.01 M N JCT CTH-Z, Winnebago, WI

Built 1978 Load: 37.3 t ADT: 1,400

CTH-G

Good

Over: DAGGETS CREEK

0.8M W JCT CTH T, Winnebago, WI

Built 1994 Load: 37.3 t ADT: 1,300

USH 45 SB

Good

Over: DAGGET CREEK

1.0M S JCT STH 116, Winnebago, WI

Built 2002 Load: 37.3 t ADT: 8,500

USH 45 NB

Good

Over: DAGGET CREEK

2.0M N JCT USH 41, Winnebago, WI

Built 2002 Load: 37.3 t ADT: 8,550

CTH-E

Good

Over: RUSH CREEK

1.1M W JCT STH 116, Winnebago, WI

Built 2002 Load: 37.3 t ADT: 2,152

Showing 11,701-11,750 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.