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

CTH JJ

Good

Over: MUD CREEK

0.8M E JCT CTH "W", Manitowoc, WI

Built 2007 Load: 40.5 t ADT: 1,200

STH 29 WB

Good

Over: PLOVER RIVER

0.05M W JCT CTH Y, Marathon, WI

Built 1959 Load: 40.5 t ADT: 13,000

LRD BOUNDRY RD

Good

Over: PLOVER RIVER

0.3M W JCT CTH Y, Marathon, WI

Built 1983 Load: 40.5 t ADT: 95

LRD TOWN HALL LANE

Good

Over: LITTLE EAU PLEINE RIVER

1.8M E JCT STH 13, Marathon, WI

Built 1991 Load: 40.5 t ADT: 84

LRD MOUNTAIN DR (D

Good

Over: LITTLE WOLF RIVER

0.1M E JCT STH 49, Marathon, WI

Built 1991 Load: 40.5 t ADT: 30

LRD COUNTY LINE RD

Good

Over: BR LT EAU PLEINE RIVER

0.9M E JCT CTH M, Marathon, WI

Built 1992 Load: 40.5 t ADT: 25

LRD RAINBOW DR

Good

Over: MCGINNIS CREEK

1.6M W JCT CTH S, Marathon, WI

Built 1993 Load: 40.5 t ADT: 62

LRD EAU PLEINE ST

Good

Over: CARLSON CREEK

1.4M JCT CTH F, Marathon, WI

Built 1997 Load: 40.5 t ADT: 31

STH 29 EB

Good

Over: PET BROOK

0.6M E JCT CTH H, Marathon, WI

Built 1999 Load: 40.5 t ADT: 8,700

LRD HUCKELBERRY RO

Good

Over: BR DILL CREEK

0.7M E JCT STH 13, Marathon, WI

Built 2000 Load: 40.5 t ADT: 391

STH 153

Good

Over: TRIB TO FREEMAN CR

0.6M E JCT CTH S, Marathon, WI

Built 2001 Load: 40.5 t ADT: 3,600

STH 52

Good

Over: EAU CLAIRE RIVER

0.1M E JCT CTH Y TO N, Marathon, WI

Built 2002 Load: 40.5 t ADT: 1,700

LRD 16TH RD

Good

Over: JOHNSON CREEK

1.3M S JCT STH 153, Marathon, WI

Built 2002 Load: 40.5 t ADT: 60

CTH F

Good

Over: DILL CREEK

3.6M S JCT CTH N, Marathon, WI

Built 1973 Load: 40.5 t ADT: 645

LRD 10TH ST

Good

Over: JIM MOORE CREEK

1.1M N JCT STH 52, Marathon, WI

Built 1976 Load: 40.5 t ADT: 2,211

LRD CAMP FIVE RD

Good

Over: PESHTIGO RIVER

5.2M N JCT CTH C, Marinette, WI

Built 1990 Load: 40.5 t ADT: 125

USH 141

Good

Over: PESHTIGO RIVER

5.2M N JCT CTH P, Marinette, WI

Built 1992 Load: 40.5 t ADT: 8,900

LRD OGDEN STREET

Good

Over: S CHANNEL MENOMINEE R

1.5M S JCT USH 41, Marinette, WI

Built 1993 Load: 40.5 t ADT: 5,700

LRD POPLAR RIDGE L

Good

Over: TROUT CREEK

0.2M N JCT CTH B, Marinette, WI

Built 1998 Load: 40.5 t ADT: 201

USH 141

Good

Over: S BR BEAVER CREEK

1.5M N JCT STH 64 TO E, Marinette, WI

Built 1999 Load: 40.5 t ADT: 10,500

CTH CH

Good

Over: CAVES CR

1.4 M N JCT CTH M, Marquette, WI

Built 2002 Load: 40.5 t ADT: 1,000

LRD WEST BRADLEY R

Good

Over: BR MENOMONEE RIVER

0.2M E JCT STH 145, Milwaukee, WI

Built 1992 Load: 40.5 t ADT: 7,231

STH 100 NB/RYAN RD

Good

Over: C & NW RAIL ROAD

1.6 MILE E. JCT STH 32, Milwaukee, WI

Built 2005 Load: 40.5 t ADT: 14,200

LRD 92ND ST

Good

Over: TESS CORNER CREEK

.06M S OF W. COLLEGE AVE, Milwaukee, WI

Built 1994 Load: 40.5 t ADT: 1,900

LRD OAK CREEK PARK

Good

Over: OAK CREEK

CITY OF MILWAUKEE, Milwaukee, WI

Built 2007 Load: 40.5 t ADT: 2,132

IH 794 EB

Good

Over: MILWAUKEE RIVER

0.42 MI E JCT IH 43, Milwaukee, WI

Built 2006 Load: 40.5 t ADT: 40,150

IH 794 WB

Good

Over: MILWAUKEE RIVER

1.4M W OF STH32, Milwaukee, WI

Built 2007 Load: 40.5 t ADT: 33,850

LRD W HAMPTON AVE

Good

Over: LINCOLN CREEK

2.1M E JCT STH 145, Milwaukee, WI

Built 1961 Load: 40.5 t ADT: 20,200

STH 131

Good

Over: KICKAPOO RIVER

2.6M N JCT STH 33, Monroe, WI

Built 1978 Load: 40.5 t ADT: 2,000

STH 131

Good

Over: KICKAPOO RIVER

1.2M N JCT CTH T, Monroe, WI

Built 1978 Load: 40.5 t ADT: 2,000

STH 71

Good

Over: FARMERS VALLEY CREEK

2.9M E JCT STH 16 TO E, Monroe, WI

Built 1991 Load: 40.5 t ADT: 1,600

STH 16

Good

Over: SOUTH FORK LEMONWEIR RIV

0.4M E JCT CTH M, Monroe, WI

Built 1993 Load: 40.5 t ADT: 2,300

STH 21

Good

Over: HANSEN CREEK

0.1M E JCT CTH Q, Monroe, WI

Built 1997 Load: 40.5 t ADT: 4,000

STH 21

Good

Over: LA CROSSE RIVER

0.3M E JCT CTH Q, Monroe, WI

Built 1997 Load: 40.5 t ADT: 4,000

STH 21

Good

Over: SILVER CREEK

0.8M E JCT CTH Q, Monroe, WI

Built 1997 Load: 40.5 t ADT: 4,000

STH 21

Good

Over: DANDY CREEK

0.7M E JCT CTH PP, Monroe, WI

Built 2000 Load: 40.5 t ADT: 4,700

LRD JANUS AVE

Good

Over: FARMERS VALLEY CREEK

0.1M E JCT STH 71, Monroe, WI

Built 1996 Load: 40.5 t ADT: 53

STH 71

Good

Over: MORRIS CREEK

0.7M E JCT CTH U TO S, Monroe, WI

Built 2004 Load: 40.5 t ADT: 2,200

STH 27

Good

Over: LITTLE LACROSSE R

5.3M N JCT STH 33, Monroe, WI

Built 2005 Load: 40.5 t ADT: 4,600

STH 27

Good

Over: BR LITTLE LACROSSE R

4.6M N JCT STH 33, Monroe, WI

Built 2005 Load: 40.5 t ADT: 4,600

CTH M

Good

Over: BR. SOUTH FORK LEMONWEIR

1.1 M SOUTH OF HWY 16, Monroe, WI

Built 2017 Load: 40.5 t ADT: 700

LRD OVERBROOK AVE

Good

Over: SEYMOUR CREEK

0.3M W JCT CTH W, Monroe, WI

Built 1988 Load: 40.5 t ADT: 94

USH 41 SB

Good

Over: PENSAUKEE RIVER

5.9M S JCT STH 22, Oconto, WI

Built 1992 Load: 40.5 t ADT: 6,300

STH 64

Good

Over: PESHTIGO BROOK

7.4M E JCT STH 32 TO S, Oconto, WI

Built 1994 Load: 40.5 t ADT: 1,400

STH 64

Good

Over: HILLS POND CREEK

5.6M E JCT STH 55, Oconto, WI

Built 2002 Load: 40.5 t ADT: 1,300

STH 64

Good

Over: SECOND S BR OCONTO RIVER

2.4M E JCT CTH T, Oconto, WI

Built 2002 Load: 40.5 t ADT: 1,300

LRD TOWNSEND DAM R

Good

Over: MCCASLIN BROOK

0.1M N MCCASLIN DR, Oconto, WI

Built 2004 Load: 40.5 t ADT: 190

CTH F

Good

Over: MCCASLIN BROOK

1.3M E JCT STH 32, Oconto, WI

Built 1938 Load: 40.5 t ADT: 1,200

LRD RAY RD

Good

Over: BR DUCK CREEK

0.8M E JCT STH 55, Outagamie, WI

Built 2006 Load: 40.5 t ADT: 104

LRD VINE ROAD

Good

Over: DUCK CREEK

0.3M N JCT CTH E, Outagamie, WI

Built 2006 Load: 40.5 t ADT: 1,537

Showing 12,651-12,700 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.