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 GRANVILLE RD

Good

Over: LITTLE MENOMONEE CREEK

0.3M S JCT STH 167, Ozaukee, WI

Built 2004 Load: 40.5 t ADT: 4,100

LRD CURTIS RD

Good

Over: LITTLE ARKANSAW CREEK

0.3M N JCT CTH D, Pepin, WI

Built 1996 Load: 40.5 t ADT: 87

USH 10

Good

Over: ARKANSAW CREEK

1.3M E JCT CTH G, Pepin, WI

Built 1994 Load: 40.5 t ADT: 2,200

LRD HARTUNG ROAD

Good

Over: ARKANSAW CREEK

0.2M N JCT CTH Z, Pepin, WI

Built 1993 Load: 40.5 t ADT: 78

CTH EE

Good

Over: ISABELLE CREEK

2.6M W JCT CTH D, Pierce, WI

Built 1980 Load: 40.5 t ADT: 262

LRD 780TH AVE

Good

Over: RUSH RIVER

0.6M E JCT USH 63, Pierce, WI

Built 1989 Load: 40.5 t ADT: 91

LRD PINE AVE

Good

Over: PLUM CREEK

0.1M E JCT CTH S, Pierce, WI

Built 1987 Load: 40.5 t ADT: 256

LRD 465TH AVE

Good

Over: LOST CREEK

1.7M N JCT USH 10, Pierce, WI

Built 1990 Load: 40.5 t ADT: 34

USH 10

Good

Over: OAK GROVE CREEK

1.6M E JCT STH 29, Pierce, WI

Built 1998 Load: 40.5 t ADT: 4,600

LRD 730TH AVE

Good

Over: RUSH RIVER

1.4M E JCT USH 63, Pierce, WI

Built 1991 Load: 40.5 t ADT: 93

LRD 50TH STREET

Good

Over: BR CADY CREEK

2.3M N JCT CTH P, Pierce, WI

Built 1993 Load: 40.5 t ADT: 55

LRD 500TH AVE

Good

Over: WIND RIVER

0.8M E JCT CTH E, Pierce, WI

Built 1996 Load: 40.5 t ADT: 93

USH 10

Good

Over: RUSH RIVER

0.1M E JCT CTH A, Pierce, WI

Built 2001 Load: 40.5 t ADT: 2,500

LRD EAST BUSINESS

Good

Over: ISABELLE CREEK

0.1 M W JCT CTH C, Pierce, WI

Built 2000 Load: 40.5 t ADT: 107

LRD 760TH AVE

Good

Over: E BR RUSH RIVER

0.6M W JCT CTH N, Pierce, WI

Built 2006 Load: 40.5 t ADT: 126

CTH Y

Good

Over: BR RUSH RIVER

1.0M N JCT STH 29, Pierce, WI

Built 1991 Load: 40.5 t ADT: 772

LRD 610TH ST

Good

Over: DRAINAGE WAY

3.1M N JCT CTH N, Pierce, WI

Built 1994 Load: 40.5 t ADT: 168

LRD RIVER RD

Good

Over: WOLF CREEK

0.1M S JCT CTH G, Polk, WI

Built 1994 Load: 40.5 t ADT: 423

LRD 30TH STREET (D

Good

Over: APPLE RIVER

0.9 MI N OF JCT WITH 160T, Polk, WI

Built 2022 Load: 40.5 t ADT: 100

CTH HH

Good

Over: WISCONSIN RIVER

1.2M W JCT HWY 66, Portage, WI

Built 1999 Load: 40.5 t ADT: 1,200

USH 10 EB

Good

Over: TOMORROW RIVER

1.8M E JCT CTH A TO S, Portage, WI

Built 2003 Load: 40.5 t ADT: 7,300

USH 10 WB

Good

Over: TOMORROW RIVER

1.8M E JCT CTH A TO S, Portage, WI

Built 2003 Load: 40.5 t ADT: 7,300

USH 10 EB

Good

Over: CANADIAN NATIONAL RR

AT CANADIAN NATIONAL RR, Portage, WI

Built 2004 Load: 40.5 t ADT: 12,800

STH 66

Good

Over: FLUME CR

1.0M E CTH I, Portage, WI

Built 2006 Load: 40.5 t ADT: 3,100

LRD BLUEBIRD LN

Good

Over: LITTLE PLOVER R

0.05 M W JCT EISENHOWER D, Portage, WI

Built 2003 Load: 40.5 t ADT: 106

USH 8

Good

Over: BR DOUGLAS CREEK

4.1M E JCT STH 13, Price, WI

Built 1993 Load: 40.5 t ADT: 1,600

LRD MARQUETTE ST

Good

Over: ROOT RIVER

0.1M S JCT STH 38, Racine, WI

Built 1991 Load: 40.5 t ADT: 10,600

STH 38

Good

Over: ROOT RIVER

1.9 MI N JCT CTH H, Racine, WI

Built 1989 Load: 40.5 t ADT: 7,900

LRD LEMOINE LN (DE

Good

Over: W BR PINE RIVER

0.1M S JCT CTH D, Richland, WI

Built 1994 Load: 40.5 t ADT: 10

CTH B

Good

Over: LITTLE BEAR CREEK

1.1M E JCT STH 130, Richland, WI

Built 1997 Load: 40.5 t ADT: 425

CTH E

Good

Over: MILL CREEK

3.8M N JCT STH 60, Richland, WI

Built 1998 Load: 40.5 t ADT: 440

LRD WEST WILLOW LA

Good

Over: LITTLE WILLOW CREEK

TOWN OF WILLOW, Richland, WI

Built 1997 Load: 40.5 t ADT: 10

CTH BB

Good

Over: MOTHER'S RUN CREEK

0.01M N JCT CTH B, Richland, WI

Built 1999 Load: 40.5 t ADT: 470

LRD ANDERSON LANE

Good

Over: LITTLE WILLOW RIVER

0.1M W JCT CTH NN, Richland, WI

Built 2003 Load: 40.5 t ADT: 53

CTH O

Good

Over: BR ASH CREEK

1.8M W JCT CTH OO, Richland, WI

Built 2007 Load: 40.5 t ADT: 466

LRD CTH Z

Good

Over: TRIB TO BR MILL CREEK

1.1M W JCT CTH A, Richland, WI

Built 2003 Load: 40.5 t ADT: 225

LRD PREGAL DR

Good

Over: SMITH HOLLOW CREEK

2.1M E JCT STH 58, Richland, WI

Built 2009 Load: 40.5 t ADT: 20

LRD SWIFT ST

Good

Over: SAUNDERS CREEK

0.3M N JCT STH 59, Rock, WI

Built 1992 Load: 40.5 t ADT: 1,800

LRD AVON RD

Good

Over: TAYLOR CREEK

0.3M E JCT CTH T, Rock, WI

Built 1993 Load: 40.5 t ADT: 189

LRD GRAND AVE

Good

Over: ROCK RIVER

0.1M N JCT IH 43, Rock, WI

Built 1993 Load: 40.5 t ADT: 5,100

LRD E COURT ST

Good

Over: ROCK RIVER

0.2M E JCT STH 11, Rock, WI

Built 1996 Load: 40.5 t ADT: 7,585

CTH J

Good

Over: BR ROCK RIVER

3.4M S JCT CTH O, Rock, WI

Built 1998 Load: 40.5 t ADT: 857

LRD STOUGHTON RD

Good

Over: BR SAUNDERS CREEK

0.6M N JCT STH 59, Rock, WI

Built 2003 Load: 40.5 t ADT: 642

LRD MARSH RD

Good

Over: BR BASS CREEK

0.3M S JCT CTH B, Rock, WI

Built 2004 Load: 40.5 t ADT: 214

LRD BELOIT-NEWARK

Good

Over: E FK RACCOON CREEK

1.8M E JCT CTH H, Rock, WI

Built 2003 Load: 40.5 t ADT: 795

LRD ST LAWRENCE RD

Good

Over: E FORK RACCOON CREEK

0.5M W PADDOCK RD, Rock, WI

Built 2008 Load: 40.5 t ADT: 861

LRD CRANSTON RD

Good

Over: TURTLE CREEK

0.4M N JCT IH 43, Rock, WI

Built 1964 Load: 40.5 t ADT: 15,500

CTH A

Good

Over: LITTLE THORNAPPLE RIVER

3.5M W JCT STH 27-45, Rusk, WI

Built 2014 Load: 40.5 t ADT: 723

LRD NORTH VIEW RD

Good

Over: NARROWS CREEK

0.4M N JCT STH 154, Sauk, WI

Built 1988 Load: 40.5 t ADT: 125

LRD MIRROR LAKE RD

Good

Over: HARRISON CREEK

0.7M E JCT STH 23, Sauk, WI

Built 1996 Load: 40.5 t ADT: 147

Showing 12,701-12,750 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.