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 PARK AVE

Unknown

Over: USH 45

0.3M N JCT STH 33, Washington, WI

Built 1985 ADT: 18,500

USH 45 NB

Unknown

Over: LRD BEAVER DAM ROAD

0.9M E JCT CTH B, Washington, WI

Built 1985 ADT: 560

USH 45 SB

Unknown

Over: LRD BEAVER DAM ROAD

1.1M E JCT CTH B, Washington, WI

Built 1989 ADT: 560

USH 45 NB

Unknown

Over: CTH D

0.7M E JCT CTH E, Washington, WI

Built 1985 ADT: 8,600

USH 45 SB

Unknown

Over: CTH D

0.7M E JCT CTH E, Washington, WI

Built 1989 ADT: 8,600

STH 175-WASHINGTON

Unknown

Over: LRD COUNTY SHOP DR

AT WASHINGTON ST, Washington, WI

Built 1981 ADT: 30

STH 60 EB

Unknown

Over: IH 41

4.3M N JCT STH 145 TO S, Washington, WI

Built 1991 ADT: 35,900

STH 60 WB

Unknown

Over: IH 41

4.3M N JCT STH 145 TO S, Washington, WI

Built 1991 ADT: 35,900

LRD WESTERN AVE

Unknown

Over: IH 41

1.3M N JCT STH 145, Washington, WI

Built 1995 ADT: 47,300

LRD SHERMAN ROAD

Unknown

Over: IH 41

2.8M N JCT STH 145, Washington, WI

Built 1995 ADT: 46,800

LRD CEDAR CREEK RD

Unknown

Over: IH 41

1.4M N JCT STH 60, Washington, WI

Built 1995 ADT: 33,900

STH 144

Unknown

Over: IH 41

2.2M N JCT STH 60 TO E, Washington, WI

Built 2014 ADT: 33,900

CTH DW

Unknown

Over: IH 41

1.5M N JCT STH 33, Washington, WI

Built 1994 ADT: 32,500

CTH D

Unknown

Over: IH 41

3.8M N JCT STH 33, Washington, WI

Built 1994 ADT: 32,200

CTH H - MOHAWK RD

Unknown

Over: IH 41

2.9M N JCT CTH D, Washington, WI

Built 1994 ADT: 33,000

IH 41 NB

Unknown

Over: LRD CTH K

1.7M E JCT STH 175, Washington, WI

Built 1994 ADT: 4,200

IH 41 SB

Unknown

Over: LRD CTH K

1.7M E JCT STH 175, Washington, WI

Built 1994 ADT: 4,200

STH 33

Unknown

Over: IH 41

6.1M N JCT 144 TO E, Washington, WI

Built 1998 ADT: 32,200

STH 164

Unknown

Over: LRD SHERMAN ROAD

AT 164, Washington, WI

Built 2002 ADT: 500

STH 164

Unknown

Over: STH 175

4.2M N JCT 167E, Washington, WI

Built 2003 ADT: 3,500

SOO LINE

Unknown

Over: STH 167

2.3M E JCT STH 164, Washington, WI

Built 1950 ADT: 7,200

SOO LINE

Unknown

Over: LRD WILDLIFE RD

1.7M N JCT CTH K, Washington, WI

Built 1940 ADT: 90

CNW RR

Unknown

Over: LRD RIVER RD

0.7M E JCT USH 45, Washington, WI

Built 1901 ADT: 150

SOO LINE

Unknown

Over: LRD HUBERTUS RD

1.5M W JCT STH 175, Washington, WI

Built 1930 ADT: 125

CTH F SB

Unknown

Over: IH 94

8.6M E JCT STH 83 TO N, Waukesha, WI

Built 1956 ADT: 108,000

IH 94 WB

Unknown

Over: CTH SR (SPRINGDALE RD)

0.4M N JCT CTH JJ, Waukesha, WI

Built 1958 ADT: 10,600

IH 94 EB

Unknown

Over: LRD CTH SR (SPRINGDALE R

0.4M N JCT CTH JJ, Waukesha, WI

Built 1958 ADT: 10,600

CTH JJ WB

Unknown

Over: IH 94

2.0M E JCT STH 164 TO N, Waukesha, WI

Built 1962 ADT: 96,500

CTH JJ EB

Unknown

Over: IH 94

2.0M E JCT STH 164 TO N, Waukesha, WI

Built 1962 ADT: 96,500

USH 18 WB

Unknown

Over: IH 94

2.2M E JCT STH 164 TO N, Waukesha, WI

Built 1962 ADT: 96,500

USH 18 EB

Unknown

Over: IH 94

2.2M E JCT STH 164 TO N, Waukesha, WI

Built 1962 ADT: 96,500

CTH Y/BARKER RD

Unknown

Over: IH 94

0.6M E JCT USH 18 TO E, Waukesha, WI

Built 1962 ADT: 96,500

IH 94 WB

Unknown

Over: LRD BROOKFIELD RD

0.4M S JCT USH 18, Waukesha, WI

Built 1962 ADT: 5,900

IH 94 EB

Unknown

Over: LRD BROOKFIELD RD

0.4M S JCT USH 18, Waukesha, WI

Built 1962 ADT: 5,900

IH 94 WB

Unknown

Over: CTH O (MOORLAND RD)

0.8M S JCT USH 18, Waukesha, WI

Built 1960 ADT: 39,600

IH 94 EB

Unknown

Over: CTH O (MOORLAND RD)

0.8M S JCT USH 18, Waukesha, WI

Built 1960 ADT: 39,600

CTH YY (PILGRIM RO

Unknown

Over: LRD KOHLER LANE

VILLAGE OF MENOMONEE FALL, Waukesha, WI

Built 2000 ADT: 99

IH 94 WB

Unknown

Over: LRD MAPLE AVE

2.5M S JCT CTH KE, Waukesha, WI

Built 1962 ADT: 1,600

IH 94 EB

Unknown

Over: LRD MAPLE AVE

2.5M S JCT CTH KE, Waukesha, WI

Built 1962 ADT: 1,800

IH 94 WB

Unknown

Over: STH 83

2.9M N JCT USH 18, Waukesha, WI

Built 1962 ADT: 31,900

IH 94 EB

Unknown

Over: STH 83

2.8M N JCT USH 18, Waukesha, WI

Built 1962 ADT: 31,900

CTH C (GENESEE ST)

Unknown

Over: IH 94

3.8M E JCT STH 67 TO N, Waukesha, WI

Built 1963 ADT: 63,900

IH 94 EB

Unknown

Over: LRD CUSHING PARK RD

2.5M S JCT USH 18, Waukesha, WI

Built 1962 ADT: 880

IH 94 WB

Unknown

Over: LRD CUSHING PARK RD

2.5M S JCT USH 18, Waukesha, WI

Built 1963 ADT: 880

IH 94 EB

Unknown

Over: LRD WATERVILLE RD

0.1M S JCT CTH DR, Waukesha, WI

Built 1962 ADT: 1,100

IH 94 WB

Unknown

Over: LRD WATERVILLE RD

0.1M S JCT CTH DR, Waukesha, WI

Built 1963 ADT: 1,100

CTH YY (PILGRIM RD

Unknown

Over: STH 190-CAPITOL DR

5.1M E JCT STH 164 TO N, Waukesha, WI

Built 1965 ADT: 36,800

STH 190 WB

Unknown

Over: LRD DUPLAINEVILLE RD

1.4M S JCT CTH V, Waukesha, WI

Built 1966 ADT: 2,300

CTH F NB (REDFORD

Unknown

Over: LRD GREEN RD

1.0M E JCT CTH F, Waukesha, WI

Built 1966 ADT: 1,900

IH RAMP, CTH O SB

Unknown

Over: CTH O (MOORLAND RD)

0.5M N JCT STH 59, Waukesha, WI

Built 1966 ADT: 39,600

Showing 2,601-2,650 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.