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 VAVRICKA RD

Good

Over: BRONSON CR

1.3M E JCT CTH I, Grant, WI

Built 2005 Load: 37.3 t ADT: 102

LRD CHURCH RD

Good

Over: FENNIMORE CREEK

0.1M E JCT CTH Q, Grant, WI

Built 2007 Load: 37.3 t ADT: 115

LRD ROGERS RD

Good

Over: ROGERS BRANCH

2.0M W JCT USH 61, Grant, WI

Built 2005 Load: 37.3 t ADT: 156

LRD STUMPTOWN RD

Good

Over: LITTLE PLATTE RIVER

2.9M S JCT CTH B, Grant, WI

Built 2005 Load: 37.3 t ADT: 220

LRD OAK ROAD

Good

Over: PLATTE RIVER TRIB

AT PLATTE RIVER TRIB, Grant, WI

Built 2005 Load: 37.3 t ADT: 107

CTH A

Good

Over: GRANT RIVER

3.6M W JCT USH 61, Grant, WI

Built 2006 Load: 37.3 t ADT: 501

CTH K

Good

Over: BR BIG GREEN RIVER

2.4M N JCT USH 18, Grant, WI

Built 2012 Load: 37.3 t ADT: 416

LRD WOODLAND LANE

Good

Over: MENOMINEE RIVER

0.3 MI E JCT USH 151, Grant, WI

Built 2023 Load: 37.3 t ADT: 50

LRD BLUE SCHOOL RD

Good

Over: FENNIMORE CREEK

0.1M E JCT CTH Q, Grant, WI

Built 1972 Load: 37.3 t ADT: 53

LRD HEFTY RD

Good

Over: HEFTY CREEK

0.8M W JCT CTH N, Green, WI

Built 1988 Load: 37.3 t ADT: 211

LRD DECATUR RD

Good

Over: SUGAR RIVER

0.7M W JCT CTH E, Green, WI

Built 1988 Load: 37.3 t ADT: 158

LRD EXETER CROSSIN

Good

Over: LITTLE SUGAR RIVER

1.9M W JCT CTH CC, Green, WI

Built 1990 Load: 37.3 t ADT: 158

LRD LITTLE SUGAR L

Good

Over: W BR LITTLE SUGAR RIVER

0.6M N JCT CTH C, Green, WI

Built 1991 Load: 37.3 t ADT: 75

LRD BALLS MILL ROA

Good

Over: SYLVESTER CREEK

0.6M S JCT CTH SS, Green, WI

Built 1991 Load: 37.3 t ADT: 79

LRD HORAN RD

Good

Over: LIBERTY CREEK

0.4M N JCT CTH C, Green, WI

Built 1992 Load: 37.3 t ADT: 105

LRD HUDSON RD

Good

Over: HONEY CREEK

0.9M N JCT CTH P, Green, WI

Built 1994 Load: 37.3 t ADT: 42

LRD PRAIRIE RD

Good

Over: SEARLES CREEK

0.2M S JCT CTH FF, Green, WI

Built 1994 Load: 37.3 t ADT: 105

LRD DISCH ROAD

Good

Over: HEFTY CREEK

0.1M S JCT CTH H, Green, WI

Built 1999 Load: 37.3 t ADT: 158

CTH E

Good

Over: NORWEGIAN CREEK

3.0M N JCT STH 11, Green, WI

Built 2003 Load: 37.3 t ADT: 699

LRD BENKERT RD

Good

Over: SKINNER CREEK

1.1M W JCT STH 69, Green, WI

Built 2005 Load: 37.3 t ADT: 105

CTH OK

Good

Over: OAKLEY BRANCH

0.3M N JCT CTH K, Green, WI

Built 2005 Load: 37.3 t ADT: 157

CTH OK

Good

Over: SPRING CREEK

0.3M N JCT CTH K, Green, WI

Built 2005 Load: 37.3 t ADT: 157

CTH C

Good

Over: SUGAR RIVER

0.1 M E JCT CTH X, Green, WI

Built 2023 Load: 37.3 t ADT: 470

LRD WHITE RIVER RD

Good

Over: WHITE RIVER

3.6M N JCT CTH D, Green Lake, WI

Built 1994 Load: 37.3 t ADT: 99

STH 44-MANCHESTER

Good

Over: GRAND RIVER

1.5M N JCT STH 73 TO S, Green Lake, WI

Built 1997 Load: 37.3 t ADT: 2,200

LRD BAKER RD (DEAD

Good

Over: MILL CREEK

0.2M W JCT CTH H, Iowa, WI

Built 1990 Load: 37.3 t ADT: 40

CTH Z

Good

Over: LOWERY CREEK

0.2M W JCT CTH T, Iowa, WI

Built 1992 Load: 37.3 t ADT: 348

STH 78

Good

Over: BLUE MOUNDS BRANCH

0.6M N JCT CTH H, Iowa, WI

Built 1999 Load: 37.3 t ADT: 1,500

LRD MILL RD

Good

Over: MILL CREEK

0.6M W JCT CTH T, Iowa, WI

Built 1998 Load: 37.3 t ADT: 62

LRD SAND HILL RD

Good

Over: WILLIAM BR PECATONICA R

1.5M S JCT CTH A, Iowa, WI

Built 1998 Load: 37.3 t ADT: 62

LRD MOUNDS PARK RD

Good

Over: W BR BLUE MOUNDS CREEK

0.1M E JCT CTH K, Iowa, WI

Built 2000 Load: 37.3 t ADT: 364

LRD FERNDALE RD

Good

Over: ROCK BRANCH

3.1M S JCT STH 23, Iowa, WI

Built 2002 Load: 37.3 t ADT: 179

CTH II

Good

Over: SPRING VALLEY CREEK

0.2M S JCT CTH I, Iowa, WI

Built 2002 Load: 37.3 t ADT: 159

CTH H

Good

Over: BR MILL CREEK

0.9M S JCT CTH T, Iowa, WI

Built 2002 Load: 37.3 t ADT: 390

LRD ZWETTLER RD

Good

Over: W BR BLUE MOUNDS CREEK

0.3M E JCT CTH K, Iowa, WI

Built 2002 Load: 37.3 t ADT: 42

CTH P

Good

Over: POMPEY PILLAR CR

0.2M S JCT CTH I, Iowa, WI

Built 2002 Load: 37.3 t ADT: 312

LRD ENLOE ROAD

Good

Over: LIVINGSTON BR

1.5M E JCT CTH E, Iowa, WI

Built 2002 Load: 37.3 t ADT: 106

STH 130

Good

Over: OTTER CREEK

0.8 MI NORTH CTH I, Iowa, WI

Built 2006 Load: 37.3 t ADT: 350

LRD JACKSON ST

Good

Over: BREWERY CR

0.6M E JCT USH 151, Iowa, WI

Built 2003 Load: 37.3 t ADT: 260

CTH K

Good

Over: WILLIAMS CREEK

1.36M N JCT CTH H TO MIDD, Iowa, WI

Built 2015 Load: 37.3 t ADT: 610

LRD WEBER RD

Good

Over: WEBER CREEK

0.8M S JCT USH 51, Iron, WI

Built 2001 Load: 37.3 t ADT: 30

STH 95

Good

Over: S BR TREMPEALEAU RIVER

0.9M E JCT CTH FF TO S, Jackson, WI

Built 1989 Load: 37.3 t ADT: 1,600

LRD ROARIN CREEK R

Good

Over: TROUT RUN CREEK

0.1M W JCT CTH X, Jackson, WI

Built 1991 Load: 37.3 t ADT: 73

STH 95

Good

Over: STONY CREEK

3.6M E JCT CTH G, Jackson, WI

Built 1996 Load: 37.3 t ADT: 5,500

LRD E KOVAR RD

Good

Over: E FK HALLS CREEK

1.0M N JCT STH 95, Jackson, WI

Built 1993 Load: 37.3 t ADT: 22

STH 54

Good

Over: HAY CREEK

5.3M E JCT CTH K, Jackson, WI

Built 1996 Load: 37.3 t ADT: 1,000

STH 54

Good

Over: TOWN LINE FLOWAGE

6.2M E JCT K, Jackson, WI

Built 1996 Load: 37.3 t ADT: 1,000

CTH T

Good

Over: S FK BUFFALO RIVER

0.1M N JCT CTH B, Jackson, WI

Built 1993 Load: 37.3 t ADT: 188

LRD BLUFF VIEW RD

Good

Over: S FK BUFFALO RIVER

0.1M N JCT CTH B, Jackson, WI

Built 2002 Load: 37.3 t ADT: 118

LRD WEST HILLCREST

Good

Over: S.FORK OF BUFFALO RIVER

.2 N JCH CTH B, Jackson, WI

Built 2007 Load: 37.3 t ADT: 144

Showing 11,351-11,400 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.