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 23 EB

Unknown

Over: LRD SUNSET DRIVE / RR

1.5M S JCT CTH C, Sheboygan, WI

Built 1985 ADT: 450

STH 23 EB-KOHLER D

Unknown

Over: LRD TAYLOR DR

0.5M S JCT CTH O, Sheboygan, WI

Built 1979 ADT: 15,900

STH 144 N

Unknown

Over: LRD ALLEN ROAD

VILLAGE OF RANDOM LAKE, Sheboygan, WI

Built 1980 ADT: 250

CNW RR

Unknown

Over: STH 28

0.6M E JCT IH 43 TO N, Sheboygan, WI

Built 1985 ADT: 13,600

STH 28

Unknown

Over: LRD KENTUCKY AVE

0.1M E JCT STH 28, Sheboygan, WI

Built 1988 ADT: 99

CTH C

Unknown

Over: STH 23

AT CTH C, Sheboygan, WI

Built 2005 ADT: 12,200

STH 23 WB

Unknown

Over: SUNSET DRIVE/R/R

0.8M W JCT STH 67, Sheboygan, WI

Built 2004 ADT: 450

IH 43 SB

Unknown

Over: CTH O

0.3M W JCT CTH AB, Sheboygan, WI

Built 2012 ADT: 8,300

IH 43 NB

Unknown

Over: CTH O

0.3M W JCT CTH AB, Sheboygan, WI

Built 2011 ADT: 8,300

IH 43 SB

Unknown

Over: CTH J

0.8M E JCT CTH Y, Sheboygan, WI

Built 2012 ADT: 6,500

IH 43 NB

Unknown

Over: CTH J

0.9M E JCT CTH Y, Sheboygan, WI

Built 2011 ADT: 6,600

CMSTPP RR

Unknown

Over: STH 67-MILL ST

1.1M N JCT CTH PP, Sheboygan, WI

Built 1907 ADT: 5,700

CNW RR

Unknown

Over: STH 67-MILL ST

1.2M N JCT CTH PP, Sheboygan, WI

Built 1907 ADT: 5,700

STH 57

Unknown

Over: CTH A

AT STH 57, Sheboygan, WI

Built 2003 ADT: 1,700

STH 23 WB

Unknown

Over: STH 67

23, Sheboygan, WI

Built 2004 ADT: 5,900

CNW RR

Unknown

Over: LRD VALLEY RD

0.1M N JCT STH 28, Sheboygan, WI

Built 1927 ADT: 1,380

CNW RR

Unknown

Over: LRD S 11TH ST

0.2M E JCT STH 42, Sheboygan, WI

Built 1910 ADT: 4,500

CNW RR

Unknown

Over: LRD RIVER PARK DR

0.6M S JCT STH 23, Sheboygan, WI

Built 1906 ADT: 2,600

CNW RR

Unknown

Over: LRD WISCONSIN AVE

0.1M E JCT STH 42, Sheboygan, WI

Built 1906 ADT: 2,000

CNW RR

Unknown

Over: LRD S 36TH ST

0.2M N JCT STH 28, Sheboygan, WI

Built 1910 ADT: 20

LRD 11TH ST

Unknown

Over: IH 94-USH 12-STH 35

0.6M E JCT STH 35 TO N, St. Croix, WI

Built 1973 ADT: 89,900

IH 94 WB

Unknown

Over: LRD KINNEY RD

0.5M N JCT CTH N, St. Croix, WI

Built 1958 ADT: 1,300

IH 94 EB

Unknown

Over: LRD KINNEY RD

0.5M N JCT CTH N, St. Croix, WI

Built 1958 ADT: 1,300

IH 94 WB

Unknown

Over: LRD 100TH STREET

0.9M N JCT CTH N, St. Croix, WI

Built 1958 ADT: 100

IH 94 EB

Unknown

Over: LRD 100TH STREET

0.9M N JCT CTH N, St. Croix, WI

Built 1958 ADT: 100

IH 94 WB-USH 12 WB

Unknown

Over: QUIXOTE AVE-ST CROIX RIV

AT USH 12, St. Croix, WI

Built 1973 ADT: 10

IH 94-USH 12-STH 3

Unknown

Over: LRD FRONT ST

0.3M S JCT STH 35, St. Croix, WI

Built 1972 ADT: 100

IH 94-USH 12-STH 3

Unknown

Over: STH 35 SB

AT JCT IH 94, St. Croix, WI

Built 1972 ADT: 9,650

CNW RR

Unknown

Over: LRD A ELEVENTH ST

0.6M E JCT STH 35, St. Croix, WI

Built 1987 ADT: 2,530

LRD CARMICHAEL RD

Unknown

Over: IH 94-USH 12-STH 35

1.7M E JCT STH 35 TO N, St. Croix, WI

Built 1991 ADT: 73,000

IH 94 EB-USH 12 EB

Unknown

Over: LRD QUIXOTE AVE-ST CROIX

0.4M N JCT STH 95, St. Croix, WI

Built 1995 ADT: 10

LRD CARMICHAEL RD

Unknown

Over: LRD ALBERT ROAD

0.1M S JCT BIENEMAN DR, St. Croix, WI

Built 1991 ADT: 99

LRD CARMICHAEL RD

Unknown

Over: LRD ALBERT ROAD

0.1M S JCT BIENEMAN DR, St. Croix, WI

Built 1991 ADT: 99

STH 35 NB

Unknown

Over: LRD QUARRY ROAD

0.5M E JCT STH 35, St. Croix, WI

Built 1993 ADT: 900

STH 35 SB

Unknown

Over: LRD QUARRY ROAD

0.5M E JCT STH 35, St. Croix, WI

Built 1993 ADT: 900

STH 65 S

Unknown

Over: STH 35

0.6M N JCT CTH MM, St. Croix, WI

Built 1992 ADT: 17,000

LRD STAGELINE RD

Unknown

Over: STH 35

6.6M N JCT STH 65, St. Croix, WI

Built 1999 ADT: 17,500

IH 94 EB

Unknown

Over: STH 35

7.0M N JCT CTH FF, St. Croix, WI

Built 2000 ADT: 10,300

IH 94 WB

Unknown

Over: STH 35

7.0M N JCT CTH FF, St. Croix, WI

Built 2000 ADT: 10,800

USH 12

Unknown

Over: IH 94

0.7M E JCT STH 35 (J), St. Croix, WI

Built 1999 ADT: 57,700

LRD TOWER RD

Unknown

Over: STH 35

0.8M N JCT CTH FF, St. Croix, WI

Built 1999 ADT: 17,400

LRD CTH VV

Unknown

Over: STH 35/64

CTH VV, St. Croix, WI

Built 2004 ADT: 13,200

CTH I

Unknown

Over: STH 35/64

AT CTH I, St. Croix, WI

Built 2004 ADT: 7,600

CANADIAN NATIONAL

Unknown

Over: STH 64

AT CANADIAN RR, St. Croix, WI

Built 2009 ADT: 1,500

STH NB STH 35/64

Unknown

Over: APPLE RIVER / PRICE RD

0.6 MI E JCT SUNRISE DR, St. Croix, WI

Built 2005 ADT: 100

STH SB STH 35/64

Unknown

Over: APPLE RIVER / PRICE RD

0.6 MI E JCT SUNRISE DR, St. Croix, WI

Built 2005 ADT: 100

STH 35

Unknown

Over: STH 64 RAMP

AT INTERSECTION, St. Croix, WI

Built 2005 ADT: 15,700

LRD 150TH AVENUE

Unknown

Over: STH 35 & STH 64

2.2M E STH64 INTERSECTION, St. Croix, WI

Built 2003 ADT: 13,200

USH 63N

Unknown

Over: IH 94

AT USH63, St. Croix, WI

Built 2004 ADT: 35,500

CTH V

Unknown

Over: STH 35/64

AT CTH V, St. Croix, WI

Built 2003 ADT: 13,200

Showing 2,401-2,450 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.