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 195TH ST.

Unknown

Over: STH 29

2.7M E JCT CTH J, Chippewa, WI

Built 1966 ADT: 19,200

CTH K STILLSON R

Unknown

Over: STH 29

3.7M E JCT CTH J, Chippewa, WI

Built 1966 ADT: 19,200

LRD 220TH ST.

Unknown

Over: STH 29

5.4M E JCT CTH J, Chippewa, WI

Built 1966 ADT: 19,200

CTH J

Unknown

Over: LRD INSTITUTION ROAD

1.7M S JCT STH 29, Chippewa, WI

Built 1965 ADT: 130

LRD 40TH AVE

Unknown

Over: USH 53

1.1M N JCT STH 124 TO N, Chippewa, WI

Built 1969 ADT: 18,000

LRD 50TH AVE

Unknown

Over: USH 53

2.1M N JCT STH 124 TO N, Chippewa, WI

Built 1969 ADT: 18,000

USH 53 S

Unknown

Over: CTH X-RIVER RD

5.7M E JCT CTH F, Chippewa, WI

Built 1970 ADT: 6,600

USH 53 N

Unknown

Over: CTH X-RIVER RD

5.7M E JCT CTH F, Chippewa, WI

Built 1970 ADT: 6,600

CTH N

Unknown

Over: USH 53

1.1M N JCT STH 29 TO E, Chippewa, WI

Built 1971 ADT: 14,200

USH 53 S

Unknown

Over: CTH S

0.9M W JCT CTH Q, Chippewa, WI

Built 1971 ADT: 5,200

USH 53 N

Unknown

Over: CTH S

0.9M W JCT CTH Q, Chippewa, WI

Built 1971 ADT: 5,200

LRD 100TH AVE.

Unknown

Over: USH 53

4.5M N JCT STH 29 TO E, Chippewa, WI

Built 1971 ADT: 15,200

CTH B

Unknown

Over: USH 53

5.4M N JCT STH 29 TO E, Chippewa, WI

Built 1971 ADT: 16,600

CTH Q

Unknown

Over: USH 53

1.3M N JCT CTH B TO E, Chippewa, WI

Built 1971 ADT: 14,200

USH 53 NB

Unknown

Over: LRD 130TH AVE.

1.4M E JCT CTH C, Chippewa, WI

Built 1971 ADT: 110

USH 53 SB

Unknown

Over: LRD 130TH AVE

1.4M E JCT CTH C, Chippewa, WI

Built 1971 ADT: 110

CTH Q

Unknown

Over: USH 53

5.3M N JCT CTH B TO E, Chippewa, WI

Built 1971 ADT: 15,100

USH 53 S

Unknown

Over: CTH F

0.1M S JCT CTH Q, Chippewa, WI

Built 1971 ADT: 1,200

USH 53 N

Unknown

Over: CTH F

0.1M S JCT CTH Q, Chippewa, WI

Built 1971 ADT: 1,200

CTH Q

Unknown

Over: USH 53

1.2M N JCT STH 40 TO N, Chippewa, WI

Built 1971 ADT: 12,300

LRD 190TH AVE.

Unknown

Over: USH 53

1.9M N JCT STH 40 TO N, Chippewa, WI

Built 1971 ADT: 12,300

STH 64

Unknown

Over: USH 53

2.9M N JCT STH 40 TO N, Chippewa, WI

Built 1971 ADT: 13,500

USH 53 S

Unknown

Over: LRD 147TH AVE

0.1M E JCT CTH Q, Chippewa, WI

Built 1971 ADT: 150

USH 53 NB

Unknown

Over: LRD 147TH ST.

0.1M E JCT CTH Q, Chippewa, WI

Built 1971 ADT: 150

STH 40-17TH ST

Unknown

Over: USH 53

8.0M N JCT CTH B TO E, Chippewa, WI

Built 1971 ADT: 13,800

USH 53 N

Unknown

Over: LRD 72ND ST

0.9M S JCT CTH AA, Chippewa, WI

Built 1972 ADT: 100

USH 53 SB

Unknown

Over: LRD 72ND ST.

0.9M S JCT CTH AA, Chippewa, WI

Built 1972 ADT: 100

CTH Q

Unknown

Over: USH 53

5.1M N JCT STH 64 TO E, Chippewa, WI

Built 1972 ADT: 13,300

CTH M MAIN ST

Unknown

Over: USH 53

6.0M N JCT STH 64 TO E, Chippewa, WI

Built 1972 ADT: 10,400

STH 124 SB-BUS 29

Unknown

Over: LRD PARK ST/CTH J

2.9M W JCT CTH X, Chippewa, WI

Built 1994 ADT: 4,000

STH 124 NB

Unknown

Over: LRD CANAL ST-CHIPPEWA RI

1.6M W JCT CTH J, Chippewa, WI

Built 1991 ADT: 100

STH 124 SB

Unknown

Over: LRD CANAL ST-CHIPPEWA RI

1.6M W JCT CTH J, Chippewa, WI

Built 1994 ADT: 100

STH 124 NB-BUS 29

Unknown

Over: CTH PARK AVENUE/CTH J

2.9M W JCT CTH X, Chippewa, WI

Built 1992 ADT: 4,000

STH 29 EB

Unknown

Over: LRD 190TH ST.

0.7M N JCT CTH J, Chippewa, WI

Built 1993 ADT: 110

CTH XX

Unknown

Over: STH 29

0.8M E JCT CTH X TO E, Chippewa, WI

Built 1992 ADT: 18,600

STH 29 WB

Unknown

Over: CTH X

0.7M N JCT CTH MM, Chippewa, WI

Built 1993 ADT: 2,300

STH 27

Unknown

Over: STH 29

3.0M E JCT CTH XX, Chippewa, WI

Built 1992 ADT: 16,000

CTH D

Unknown

Over: STH 29

5.9M E JCT STH 27 TO N, Chippewa, WI

Built 1993 ADT: 16,100

STH 29 WB

Unknown

Over: CTH H

0.5M N JCT CTH O, Chippewa, WI

Built 1994 ADT: 4,500

STH 29 EB

Unknown

Over: CTH H

0.5M N JCT CTH O, Chippewa, WI

Built 1994 ADT: 4,500

CTH T

Unknown

Over: STH 29

2.9M E XING CTH M, Chippewa, WI

Built 2002 ADT: 13,800

LRD 110TH ST (SHAF

Unknown

Over: STH 29

5.0M E XING CTH T, Chippewa, WI

Built 2004 ADT: 14,400

LRD 120TH ST (EMER

Unknown

Over: STH 29

6.0M E XING CTH T, Chippewa, WI

Built 2004 ADT: 14,400

STH 29 WB

Unknown

Over: STH 124

AT STH29, Chippewa, WI

Built 2004 ADT: 13,600

STH 29 EB

Unknown

Over: STH 124

2.0M E CTH, Chippewa, WI

Built 2004 ADT: 13,600

STH 29 WB

Unknown

Over: USH 53

AT STH29, Chippewa, WI

Built 2005 ADT: 13,500

STH 29 EB

Unknown

Over: USH 53

AT STH 29, Chippewa, WI

Built 2004 ADT: 22,200

LRD 130TH ST (AEBL

Unknown

Over: STH 29

0.5M E JCT STH 124 TO S, Chippewa, WI

Built 2004 ADT: 28,300

CTH P

Unknown

Over: STH 29

05M E JCT STH 124 TO S, Chippewa, WI

Built 2001 ADT: 22,800

LRD 40TH AVE

Unknown

Over: STH 29

TOWN OF HALLIE, Chippewa, WI

Built 2002 ADT: 28,300

Showing 251-300 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.