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 22ND ST WEST

Good

Over: S BR YELLOW RIVER

1.1M S JCT STH 21, Juneau, WI

Built 1983 Load: 43.7 t ADT: 47

LRD 28TH ST WEST

Good

Over: LITTLE YELLOW RIVER

4.5M S JCT STH 21, Juneau, WI

Built 1976 Load: 43.7 t ADT: 47

STH 158 EB

Good

Over: KILBOURN DITCH

0.1M E JCT IH 94, Kenosha, WI

Built 2013 Load: 43.7 t ADT: 9,900

LRD WILLOW DR

Good

Over: SILVER CREEK

0.8M N JCT STH 54, Kewaunee, WI

Built 2022 Load: 43.7 t ADT: 100

USH 14 EB

Good

Over: MISSISSIPPI RIVER

0.8 MILES EAST OF MINNESO, La Crosse, WI

Built 2004 Load: 43.7 t ADT: 7,550

USH 151 NB

Good

Over: BONNER BR

2.6M N JCT W MOUND RD, Lafayette, WI

Built 2004 Load: 43.7 t ADT: 4,900

USH 151 SB

Good

Over: BONNER BR

0.6M S JCT CTH G, Lafayette, WI

Built 2004 Load: 43.7 t ADT: 4,900

USH 151 SB

Good

Over: COTTAGE INN BRANCH

4.1M S JCT CTH A, Lafayette, WI

Built 2003 Load: 43.7 t ADT: 5,250

STH 107

Good

Over: LITTLE PINE CREEK

4.0M N JCT CTH J, Lincoln, WI

Built 2022 Load: 43.7 t ADT: 90

CTH CCC

Good

Over: BIG HAY MEADOW CREEK

1.0M E JCT STH 17, Lincoln, WI

Built 2007 Load: 43.7 t ADT: 107

CTH CR

Good

Over: SILVER CREEK

3.8M N JCT CTH C, Manitowoc, WI

Built 1994 Load: 43.7 t ADT: 3,700

LRD NACHTWEY RD

Good

Over: NESHOTA RIVER

1.1M W JCT CTH R, Manitowoc, WI

Built 1996 Load: 43.7 t ADT: 54

LRD QUARRY RD

Good

Over: MANITOWOC R

1.0M N USH 151, Manitowoc, WI

Built 2004 Load: 43.7 t ADT: 105

LRD POINT CREEK RD

Good

Over: POINT CREEK

1.0M W JCT CTH LS, Manitowoc, WI

Built 2006 Load: 43.7 t ADT: 263

STH 42

Good

Over: TRIB TO MEEME CR

1.17 MI N OF CTH XX LT, Manitowoc, WI

Built 2011 Load: 43.7 t ADT: 2,600

STH 42

Good

Over: TRIB TO POINT CR

1.70 MI N OF CTH F, Manitowoc, WI

Built 2011 Load: 43.7 t ADT: 3,200

STH 97

Good

Over: BIG EAU PLEINE RIVER

1.4M N JCT STH 153, Marathon, WI

Built 1995 Load: 43.7 t ADT: 4,000

STH 153

Good

Over: LITTLE EAU CLAIRE RIVER

7.6M E JCT CTH X, Marathon, WI

Built 1999 Load: 43.7 t ADT: 1,900

LRD BRUCKERVILLE R

Good

Over: BR E BR BIG EAU PLEINE R

0.8M N JCT CTH A, Marathon, WI

Built 2001 Load: 43.7 t ADT: 110

LRD CARDINAL LANE

Good

Over: SODA CREEK

0.4M S JCT CTH N, Marathon, WI

Built 2003 Load: 43.7 t ADT: 90

LRD CTH R

Good

Over: BIG RIB RIVER

AT RIB WATER CREEK, Marathon, WI

Built 2005 Load: 43.7 t ADT: 4,300

LRD DAY AVE

Good

Over: SQUAW CREEK

1.2M E JCT CTH T, Marathon, WI

Built 2006 Load: 43.7 t ADT: 105

CTH E

Good

Over: LITTLE EAU PLEINE RIVER

1.6M S JCT CTH C, Marathon, WI

Built 2005 Load: 43.7 t ADT: 2,420

CTH S

Good

Over: GRASS CREEK

0.7M S JCT CTH F, Marathon, WI

Built 2008 Load: 43.7 t ADT: 470

LRD HIGHPOINT RD

Good

Over: LITTLE SANDY CREEK

1.7M N JCT CTH N, Marathon, WI

Built 2008 Load: 43.7 t ADT: 108

LRD MATHIS RD

Good

Over: S BR PIKE RIVER

2.3M W JCT CTH V, Marinette, WI

Built 1990 Load: 43.7 t ADT: 75

USH 41 NB

Good

Over: C & N RR

0.85 MI N OF CTH Y, Marinette, WI

Built 2009 Load: 43.7 t ADT: 5,450

USH 41 SB

Good

Over: C & N RR

0.85 MI N OF CTH Y, Marinette, WI

Built 2009 Load: 43.7 t ADT: 6,100

STH 23

Good

Over: NEENAH CREEK

2.4M E JCT CTH AA, Marquette, WI

Built 2000 Load: 43.7 t ADT: 1,200

LRD 4TH AVE

Good

Over: WESTFIELD CREEK

0.2M S JCT CTH A, Marquette, WI

Built 2001 Load: 43.7 t ADT: 160

LRD 14TH AVE

Good

Over: CHAFFEE CREEK

2.5M S JCT CTH JJ, Marquette, WI

Built 2000 Load: 43.7 t ADT: 80

CTH JJ

Good

Over: CHAFEE CREEK

1.6 M N JCT CTH Z, Marquette, WI

Built 2007 Load: 43.7 t ADT: 260

IH 794 WB-LAKE FRE

Good

Over: LAND

2.1 MI N JCT CARFERRY DR, Milwaukee, WI

Built 1974 Load: 43.7 t ADT: 17,900

IH 794

Good

Over: LAND

0.4 MI W JCT CARFERRY DR, Milwaukee, WI

Built 1977 Load: 43.7 t ADT: 30,300

IH 794 WB-LAKE FRE

Good

Over: DOCK RR

1.0M W JCT CARFERRY DR, Milwaukee, WI

Built 1974 Load: 43.7 t ADT: 25,200

CTH NN-W OKLAHOMA

Good

Over: HONEY CREEK

1.0 MI E JCT CTH T, Milwaukee, WI

Built 2009 Load: 43.7 t ADT: 21,300

IH 794 EB

Good

Over: LAND

2.8 MI E JCT STH 175, Milwaukee, WI

Built 2006 Load: 43.7 t ADT: 25,300

STH 21

Good

Over: BEAVER CREEK

1.9M E JCT CTH PP, Monroe, WI

Built 2000 Load: 43.7 t ADT: 4,700

CTH MM

Good

Over: SLEIGHTON CREEK

0.1M E JCT CTH M, Monroe, WI

Built 2007 Load: 43.7 t ADT: 192

CTH Q

Good

Over: BR HANSEN CREEK

0.2M N JCT STH 21, Monroe, WI

Built 1979 Load: 43.7 t ADT: 260

LRD LADE BEACH RD

Good

Over: TIBBET CREEK

0.8M W JCT CTH J, Oconto, WI

Built 1992 Load: 43.7 t ADT: 120

LRD IRON BRIDGE RD

Good

Over: N BR OCONTO RIVER

0.3M W JCT STH 32, Oconto, WI

Built 2000 Load: 43.7 t ADT: 20

LRD LAKESHORE DR

Good

Over: GUDEGAST CR

AT GUDEGAST CR, Oneida, WI

Built 2005 Load: 43.7 t ADT: 376

CTH S

Good

Over: DUCK CREEK

0.3M W JCT STH 55, Outagamie, WI

Built 1993 Load: 43.7 t ADT: 4,200

LRD NEWLAND RD

Good

Over: SHIOC RIVER

1.2M S JCT CTH G, Outagamie, WI

Built 2004 Load: 43.7 t ADT: 84

CTH T

Good

Over: CEDAR CREEK

2.5M W JCT STH 57, Ozaukee, WI

Built 2003 Load: 43.7 t ADT: 4,800

CTH A

Good

Over: SAUK CREEK

0.3M W JCT CTH KW, Ozaukee, WI

Built 2013 Load: 43.7 t ADT: 820

CTH N

Good

Over: PLUM CREEK

AT PLUM CREEK, Pepin, WI

Built 2004 Load: 43.7 t ADT: 447

CTH FF

Good

Over: GREENWOOD VALLEY CREEK

0.5M W JCT STH 29, Pierce, WI

Built 1999 Load: 43.7 t ADT: 504

USH 10 EB

Good

Over: CNRR

2.3 MILES E OF STH 13, Portage, WI

Built 2011 Load: 43.7 t ADT: 8,500

Showing 13,301-13,350 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.