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 S CLEVELAND RD

Good

Over: PIGEON RIVER

0.4M W JCT STH 42, Manitowoc, WI

Built 2010 Load: 34.0 t ADT: 153

STH 42

Good

Over: SILVER CREEK

5.2M N JCT CTH C, Manitowoc, WI

Built 2022 Load: 34.0 t ADT: 4,000

LRD SCOTCH CREEK R

Good

Over: SCOTCH CREEK

1.5M S JCT STH 29, Marathon, WI

Built 1985 Load: 34.0 t ADT: 112

LRD LINCOLN RD

Good

Over: BR LITTLE RIB RIVER

0.8M E JCT CTH O, Marathon, WI

Built 1986 Load: 34.0 t ADT: 85

LRD MAPLE LEAF RD

Good

Over: BURNS CREEK

1.5M N JCT STH 153, Marathon, WI

Built 1992 Load: 34.0 t ADT: 80

LRD SANDY RIVER RD

Good

Over: LITTLE SANDY CREEK

0.8M N JCT CTH N, Marathon, WI

Built 1995 Load: 34.0 t ADT: 32

LRD STAR RD

Good

Over: BIG SANDY CREEK

0.2M N JCT STH 52, Marathon, WI

Built 1995 Load: 34.0 t ADT: 40

LRD 128TH AVE

Good

Over: W FK LITTLE RIB RIVER

0.9M S JCT CTH A, Marathon, WI

Built 1997 Load: 34.0 t ADT: 30

CTH J

Good

Over: LITTLE SANDY CREEK

0.2M S JCT CTH N, Marathon, WI

Built 1998 Load: 34.0 t ADT: 1,612

STH 52

Good

Over: BIG SANDY CREEK

2.1M E JCT CTH J TO N, Marathon, WI

Built 2002 Load: 34.0 t ADT: 2,400

LRD FRIEDERS RD

Good

Over: DENNY CREEK

1.5M E JCT CTH M, Marathon, WI

Built 2001 Load: 34.0 t ADT: 15

LRD EAU CLAIRE RIV

Good

Over: BR EAU PLEINE RIVER

1.2M N JCT CTH Z, Marathon, WI

Built 2002 Load: 34.0 t ADT: 146

USH 51 SB-STH 29 E

Good

Over: BIG RIB RIVER

1.7M S JCT STH 29 TO W, Marathon, WI

Built 2006 Load: 34.0 t ADT: 30,550

USH 51 NB

Good

Over: WIS CENTRAL LTD RR

4.5M N JCT STH29TOEAST, Marathon, WI

Built 2007 Load: 34.0 t ADT: 34,100

USH 51 SB

Good

Over: WISCONSIN CENTRAL RR

1.1M S JCT STH 52, Marathon, WI

Built 2007 Load: 34.0 t ADT: 34,100

STH 97

Good

Over: BALDWIN CR

0.2 MI S OF TAYLOR CO LIN, Marathon, WI

Built 2005 Load: 34.0 t ADT: 1,700

LRD EAGLE NEST BLV

Good

Over: CEDAR CREEK

0.1 MI. E. JCT OF BUS. 51, Marathon, WI

Built 2005 Load: 34.0 t ADT: 8,555

CTH N

Good

Over: WINDING CREEK

1.8M E JCT STH 13, Marathon, WI

Built 2007 Load: 34.0 t ADT: 1,350

LRD MUTUAL AVE

Good

Over: MABBOTT CREEK

0.8M N JCT CTH P, Marathon, WI

Built 2008 Load: 34.0 t ADT: 103

LRD JAMROS RD

Good

Over: WAUSAUKEE RIVER

1.3M E JCT USH 141, Marinette, WI

Built 1992 Load: 34.0 t ADT: 120

LRD MCMAHON RD

Good

Over: UPPER MIDDLE INLET CREEK

0.8M S JCT USH 141, Marinette, WI

Built 1992 Load: 34.0 t ADT: 120

LRD SMITH CREEK RD

Good

Over: E&L RR

0.2M W JCT USH 141, Marinette, WI

Built 1995 Load: 34.0 t ADT: 100

LRD THIRD ROAD

Good

Over: BEAVER CREEK

0.3M S JCT CTH P, Marinette, WI

Built 1997 Load: 34.0 t ADT: 351

CTH O

Good

Over: N. BR. PENBONWON R.

2.6M N. JCT CTH OO, Marinette, WI

Built 1997 Load: 34.0 t ADT: 361

CTH CP (BUSINESS 1

Good

Over: LITTLE PESHTIGO RIVER

0.9M N JCT CTH B, Marinette, WI

Built 2003 Load: 34.0 t ADT: 1,900

CTH R

Good

Over: N BR PEMEBONWON RIVER

7.7M E JCT USH 8, Marinette, WI

Built 2004 Load: 34.0 t ADT: 100

CTH Z

Good

Over: CHAFEE CREEK

0.5 MI W JCT CTH Y, Marquette, WI

Built 2007 Load: 34.0 t ADT: 100

LRD N PORT WASHING

Good

Over: MILWAUKEE RIVER

0.1M E JCT HAMPTON AVE, Milwaukee, WI

Built 2003 Load: 34.0 t ADT: 14,400

LRD OAK CREEK PARK

Good

Over: OAK CREEK

1.0M S JCT STH 32, Milwaukee, WI

Built 2002 Load: 34.0 t ADT: 3,807

LRD S 60TH ST

Good

Over: ROOT RIVER

1.2M S JCT STH 100, Milwaukee, WI

Built 1984 Load: 34.0 t ADT: 600

LRD W. PUETZ ROAD

Good

Over: ROOT RIVER

0.9M E JCT CTH U, Milwaukee, WI

Built 1999 Load: 34.0 t ADT: 3,600

CTH EE, W HAMPTON

Good

Over: UNION PACIFIC RR

0.2 M W OF USH 45, Milwaukee, WI

Built 2005 Load: 34.0 t ADT: 9,250

CTH EE - HAMPTON A

Good

Over: UNION PACIFIC RR

0.2 M W OF USH 45, Milwaukee, WI

Built 2004 Load: 34.0 t ADT: 9,250

LRD W HIGHLAND BLV

Good

Over: CANADIAN PACIFIC RR

AT CR RAILROAD XING, Milwaukee, WI

Built 2009 Load: 34.0 t ADT: 5,700

STH 794 NB(LAKE PA

Good

Over: EDGERTON CHANNEL

0.2 MI N JCT PENNSYLVANIA, Milwaukee, WI

Built 2005 Load: 34.0 t ADT: 10,300

LRD HONEY CREEK PA

Good

Over: HONEY CREEK

0.8M N JCT USH 18, Milwaukee, WI

Built 2008 Load: 34.0 t ADT: 4,389

IH RAMP CLYBOURN-I

Good

Over: LAND

0.25 MI W JCT S 6TH ST, Milwaukee, WI

Built 2008 Load: 34.0 t ADT: 8,500

STH 131

Good

Over: KICKAPOO RIVER

0.3M N JCT CTH Z, Monroe, WI

Built 1991 Load: 34.0 t ADT: 1,400

STH 71

Good

Over: SPENCER CREEK

2.6M E JCT STH 162, Monroe, WI

Built 2003 Load: 34.0 t ADT: 900

STH 27

Good

Over: LITTLE LACROSSE R

2.1M N JCT CTH F, Monroe, WI

Built 2005 Load: 34.0 t ADT: 4,600

STH 27

Good

Over: CANNON VALLEY CR

1.0M S JCT CTH J, Monroe, WI

Built 2005 Load: 34.0 t ADT: 4,600

STH 27

Good

Over: PLEASANT VALLEY CR

1.9M N JCT CTH XX, Monroe, WI

Built 2005 Load: 34.0 t ADT: 5,300

CTH G

Good

Over: BRANDY CREEK

0.1M S JCT CTH N, Monroe, WI

Built 2002 Load: 34.0 t ADT: 387

CTH EW

Good

Over: BR E FK LEMONWEIR RIVER

5.4M W JCT STH 173, Monroe, WI

Built 2013 Load: 34.0 t ADT: 313

STH 21-WATER ST

Good

Over: BEAVER CREEK

0.4M E JCT STH 16 TO E, Monroe, WI

Built 1944 Load: 34.0 t ADT: 4,000

LRD ACORN AVE

Good

Over: PRINTZ CREEK

2.1M W JCT STH 27, Monroe, WI

Built 1991 Load: 34.0 t ADT: 199

LRD DOVE AVE

Good

Over: E FK LEMONWEIR RIVER

0.5M E JCT STH 173, Monroe, WI

Built 1990 Load: 34.0 t ADT: 47

LRD EXCELSIOR AVE

Good

Over: LEMONWEIR CREEK

0.1M S JCT STH 21, Monroe, WI

Built 1971 Load: 34.0 t ADT: 141

LRD KIPPER AVE

Good

Over: BR LITTLE LEMONWEIR R

1.5M W JCT CTH N, Monroe, WI

Built 1955 Load: 34.0 t ADT: 47

USH 41 SB-USH 141

Good

Over: LITTLE SUAMICO RIVER

0.6M S JCT CTH S, Oconto, WI

Built 1971 Load: 34.0 t ADT: 31,630

Showing 9,851-9,900 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.