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

IH 90-IH 94

Good

Over: BEAR CREEK

3.2M E JCT IH 94 TO W, Monroe, WI

Built 1963 Load: 32.4 t ADT: 37,900

IH 90-IH 94

Good

Over: W FK BEAR CREEK

2.5M E JCT IH 94 TO W, Monroe, WI

Built 1963 Load: 32.4 t ADT: 37,900

IH 90

Good

Over: SILVER CREEK

4.1M E JCT STH 16 TO E, Monroe, WI

Built 1968 Load: 32.4 t ADT: 17,900

STH 131

Good

Over: KICKAPOO RIVER

0.9M N JCT STH 33, Monroe, WI

Built 1978 Load: 32.4 t ADT: 2,000

STH 71-STH 131

Good

Over: DORSET VALLEY CREEK

3.2M E JCT STH 131 TO S, Monroe, WI

Built 1984 Load: 32.4 t ADT: 2,700

LRD ACORN AVE

Good

Over: BIG CREEK

3.8M W JCT STH 27, Monroe, WI

Built 1989 Load: 32.4 t ADT: 141

STH 27-STH 71

Good

Over: BR SPENCER CREEK

6.3M N JCT CTH B, Monroe, WI

Built 1989 Load: 32.4 t ADT: 3,300

STH 131

Good

Over: KICKAPOO RIVER

2.7M N JCT CTH T, Monroe, WI

Built 1991 Load: 32.4 t ADT: 1,400

STH 131

Good

Over: KICKAPOO RIVER

3.2M N JCT CTH T, Monroe, WI

Built 1991 Load: 32.4 t ADT: 1,400

STH 131

Good

Over: KICKAPOO RIVER

1.1M N JCT CTH Z, Monroe, WI

Built 1991 Load: 32.4 t ADT: 1,400

STH 16

Good

Over: CHUB CREEK

0.3M E JCT CTH M TO N, Monroe, WI

Built 1993 Load: 32.4 t ADT: 2,300

USH 12-STH 16

Good

Over: INDIAN CREEK

0.9M E JCT CTH N TO N, Monroe, WI

Built 1992 Load: 32.4 t ADT: 2,100

STH 21

Good

Over: MUD CREEK

14.4 M E JCT STH 71, Monroe, WI

Built 1997 Load: 32.4 t ADT: 3,900

USH 12-STH 16

Good

Over: KREYER CREEK

0.4M E JCT CTH C TO S, Monroe, WI

Built 1997 Load: 32.4 t ADT: 2,600

LRD NEMO AVE

Good

Over: BR LITTLE LACROSSE RIVER

1.5M W JCT CTH U, Monroe, WI

Built 1997 Load: 32.4 t ADT: 387

STH 173 (COPPER RD

Good

Over: TRIB E FK LEMONWEIR R

0.8M N JCT CTH G, Monroe, WI

Built 1998 Load: 32.4 t ADT: 1,800

LRD HILLDALE AVE

Good

Over: BR COUNCIL CREEK

0.7M E JCT STH 131, Monroe, WI

Built 2003 Load: 32.4 t ADT: 21

CTH T

Good

Over: BRANCH OF MORRIS CREEK

0.1M S OF JCT STH 71, Monroe, WI

Built 2003 Load: 32.4 t ADT: 630

LRD OKLAHOMA AVE

Good

Over: LRD TRIB OF UPPER BRUSH

0.05 MI W OF STH 33, Monroe, WI

Built 2014 Load: 32.4 t ADT: 200

STH 21

Good

Over: E FK LEMONWEIR RIVER

2.1M E JCT STH 173, Monroe, WI

Built 2012 Load: 32.4 t ADT: 3,800

CTH N

Good

Over: SPRING VALLEY CREEK

1.3M W JCT CTH W, Monroe, WI

Built 2017 Load: 32.4 t ADT: 200

EAST MANEUVER RD

Good

Over: LA CROSSE RIVER

RANGE 2, Monroe, WI

Built 2018 Load: 32.4 t ADT: 10

LRD CARDINAL RD

Good

Over: SPENCER CREEK

0.9M W JCT STH 27, Monroe, WI

Built 1981 Load: 32.4 t ADT: 47

STH 32

Good

Over: N BR PENSAUKEE RIVER

1.6M N JCT CTH E, Oconto, WI

Built 1990 Load: 32.4 t ADT: 2,300

LRD STILES RD

Good

Over: LITTLE RIVER

0.7M W JCT CTH J, Oconto, WI

Built 1995 Load: 32.4 t ADT: 226

STH 32-MAIN ST

Good

Over: OCONTO RIVER

2.8M N JCT CTH Z, Oconto, WI

Built 1999 Load: 32.4 t ADT: 2,300

CTH T

Good

Over: S BR OCONTO RIVER

3.0M N JCT CTH W, Oconto, WI

Built 1993 Load: 32.4 t ADT: 251

CTH A

Good

Over: KELLY BROOK

0.2M E JCT CTH K, Oconto, WI

Built 2002 Load: 32.4 t ADT: 540

CTH J

Good

Over: PENSAUKEE RIVER

0.9M N JCT USH 41, Oconto, WI

Built 2001 Load: 32.4 t ADT: 730

LRD EAST MAIN ST

Good

Over: CHRISTIE BROOK

0.07M E JCT GREEN BAY AVE, Oconto, WI

Built 2009 Load: 32.4 t ADT: 1,000

CTH S

Good

Over: BR. LITTLE SUAMICO R.

AT BR. LITTLE SUAMICO R., Oconto, WI

Built 2007 Load: 32.4 t ADT: 1,400

LRD HAYES RD

Good

Over: HAYES CREEK

0.2M W JCT CTH M, Oconto, WI

Built 2006 Load: 32.4 t ADT: 125

STH 17 NB

Good

Over: PELICAN RIVER

0.3M N JCT STH 8, Oneida, WI

Built 2003 Load: 32.4 t ADT: 5,900

LRD THOROUGHFARE R

Good

Over: MID LAKE-LAKE TOMAHAWK

2.1M E JCT USH 51, Oneida, WI

Built 2006 Load: 32.4 t ADT: 750

STH 32

Good

Over: SCOTT CR

1.5M W ECL, Oneida, WI

Built 2022 Load: 32.4 t ADT: 600

USH 45

Good

Over: MONICO CREEK

0.1 MI S JCT USH 8, Oneida, WI

Built 2023 Load: 32.4 t ADT: 3,100

LRD CTH B

Good

Over: WOLF RIVER

3.02 M E OF US 45 & CTH B, Oneida, WI

Built 2023 Load: 32.4 t ADT: 450

LRD CAPITOL DR

Good

Over: TRIB MUD CREEK

1.8M W JCT STH 47, Outagamie, WI

Built 1987 Load: 32.4 t ADT: 5,000

CTH M

Good

Over: WOLF RIVER OVERFLOW

1.7M N JCT CTH MM, Outagamie, WI

Built 1968 Load: 32.4 t ADT: 2,500

STH 96

Good

Over: MUD CREEK

0.2M E JCT USH 41 TO N, Outagamie, WI

Built 1971 Load: 32.4 t ADT: 26,000

LRD WISCONSIN AVE

Good

Over: NAVIGATION CHANNEL

0.1M E JCT STH 55, Outagamie, WI

Built 1984 Load: 32.4 t ADT: 8,600

STH 187

Good

Over: SHIOC RIVER OVERFLOW

1.2M N JCT STH 54, Outagamie, WI

Built 1981 Load: 32.4 t ADT: 1,400

LRD STATE ST

Good

Over: GARNERS CREEK

0.3M W JCT CTH HH, Outagamie, WI

Built 1981 Load: 32.4 t ADT: 2,600

CTH EE

Good

Over: BR DUCK CREEK

0.1M E JCT CTH H, Outagamie, WI

Built 1983 Load: 32.4 t ADT: 1,435

LRD MCCABE RD

Good

Over: BR APPLE CREEK

0.1M S JCT CTH UU, Outagamie, WI

Built 1984 Load: 32.4 t ADT: 174

LRD GARDNER ROAD

Good

Over: BLACK CREEK

0.3M E JCT STH 55, Outagamie, WI

Built 1986 Load: 32.4 t ADT: 115

CTH D

Good

Over: BR EMBARRASS RIVER

0.4M S JCT CTH XX, Outagamie, WI

Built 1989 Load: 32.4 t ADT: 706

STH 55

Good

Over: MOSES CREEK

1.3M N JCT USH 41 TO N, Outagamie, WI

Built 1990 Load: 32.4 t ADT: 5,667

LRD SPENCER ST

Good

Over: MUD CREEK

0.2M E JCT USH 41, Outagamie, WI

Built 1990 Load: 32.4 t ADT: 7,373

CTH F

Good

Over: EMBARRASS RIVER OVERFLOW

0.6M W JCT CTH FF, Outagamie, WI

Built 1989 Load: 32.4 t ADT: 266

Showing 9,151-9,200 of 14,851 bridges

Related

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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.