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 C

Good

Over: BR LITTLE GREEN RIVER

2.3M W JCT STH 133, Grant, WI

Built 1985 Load: 32.4 t ADT: 180

LRD DIAMOND GROVE

Good

Over: BR RATTLESNAKE CREEK

0.3M S JCT CTH V, Grant, WI

Built 1987 Load: 32.4 t ADT: 32

CTH X

Good

Over: DANNA BRANCH

2.2M S JCT CTH C, Grant, WI

Built 1988 Load: 32.4 t ADT: 455

LRD LANCASTER ST

Good

Over: BR LANE CREEK

0.1M W JCT STH 35, Grant, WI

Built 1989 Load: 32.4 t ADT: 207

LRD NORTH HOLLOW R

Good

Over: BR SINSINAWA RIVER

1.9M W JCT STH 80, Grant, WI

Built 1988 Load: 32.4 t ADT: 53

LRD PINE TREE RD

Good

Over: BIG SPRING BRANCH

1.3M N JCT CTH Q, Grant, WI

Built 1995 Load: 32.4 t ADT: 102

CTH C

Good

Over: MARKLEY HOLLOW CREEK

1.2M W JCT USH 18, Grant, WI

Built 1999 Load: 32.4 t ADT: 1,200

LRD PINE TREE RD

Good

Over: SIX MILE BRANCH

1.5M E JCT CTH Q, Grant, WI

Built 2000 Load: 32.4 t ADT: 102

STH 133

Good

Over: DARK HOLLOW

3.2 MI SOUTH JCT STH 81, Grant, WI

Built 2009 Load: 32.4 t ADT: 570

LRD ROCKVILLE RD

Good

Over: BR PLATTE RIVER

0.2M N JCT CTH O, Grant, WI

Built 2001 Load: 32.4 t ADT: 166

LRD GREEN RIVER RD

Good

Over: BR GREEN RIVER

0.5M E JCT HICKORY HILL R, Grant, WI

Built 2001 Load: 32.4 t ADT: 104

LRD CHURCH RD

Good

Over: OVERFLOW LITTLE PLATTE R

AT LITTLE PLATTE RIVER, Grant, WI

Built 2004 Load: 32.4 t ADT: 161

STH 133

Good

Over: LITTLE GREEN RIVER

AT IRISH RIDGE RD, Grant, WI

Built 2010 Load: 32.4 t ADT: 580

CTH K

Good

Over: BR BIG GREEN RIVER

2.0M N JCT USH 18, Grant, WI

Built 2012 Load: 32.4 t ADT: 416

LRD HILL RD

Good

Over: NEVAEH BRANCH

0.4 MI E JCT LIBERTY RIDG, Grant, WI

Built 2017 Load: 32.4 t ADT: 100

LRD LA PLATTE RD

Good

Over: PLATTE RIVER

2.2M W JCT STH 80, Grant, WI

Built 1990 Load: 32.4 t ADT: 102

LRD EVERSON RD

Good

Over: CASS VALLEY BRANCH

1.3M E JCT CTH Q, Grant, WI

Built 1981 Load: 32.4 t ADT: 53

LRD WEINBRENNER RD

Good

Over: LEGGETT CREEK

1.4M S JCT USH 18, Grant, WI

Built 1980 Load: 32.4 t ADT: 78

LRD CRUBEL LANE (D

Good

Over: BLAKE FORK

3.0M S JCT USH 18, Grant, WI

Built 1989 Load: 32.4 t ADT: 100

LRD SLABTOWN RD

Good

Over: BLAKE FORK

0.1M S JCT CTH A, Grant, WI

Built 1975 Load: 32.4 t ADT: 102

LRD GRANT RIVER RD

Good

Over: GRANT RIVER

2.5M N JCT CTH U, Grant, WI

Built 1977 Load: 32.4 t ADT: 37

LRD BUDWORTH SCHOO

Good

Over: HACKETT BRANCH

0.1M S JCT STH 35, Grant, WI

Built 1983 Load: 32.4 t ADT: 83

CTH VV

Good

Over: MUDDY CREEK

4.2M N JCT STH 133, Grant, WI

Built 1975 Load: 32.4 t ADT: 254

LRD CAMEL RIDGE RD

Good

Over: GRANT RIVER

1.3M S JCT CTH U, Grant, WI

Built 1977 Load: 32.4 t ADT: 78

LRD BIG PLATTE RD.

Good

Over: BLAKELY BRANCH

0.9M S JCT CTH B, Grant, WI

Built 1982 Load: 32.4 t ADT: 51

LRD E HAAS LANE (D

Good

Over: BR GRANT RIVER

2.1M N JCT STH 133, Grant, WI

Built 1984 Load: 32.4 t ADT: 50

LRD BOICE CREEK RD

Good

Over: BR BOICE CREEK

0.6M E JCT CTH U, Grant, WI

Built 1985 Load: 32.4 t ADT: 53

LRD FARMERS GROVE

Good

Over: DOUGHERTY CREEK

1.3M W JCT CTH J, Green, WI

Built 1983 Load: 32.4 t ADT: 63

CTH P

Good

Over: SPRING CREEK

0.3M E JCT CTH HK, Green, WI

Built 1987 Load: 32.4 t ADT: 283

LRD S HIAWATHA RD

Good

Over: SMOCK CREEK

0.8M S JCT CTH Y, Green, WI

Built 1985 Load: 32.4 t ADT: 116

LRD ALLEN RD

Good

Over: ZANDER CREEK

0.8M S JCT STH 11, Green, WI

Built 1988 Load: 32.4 t ADT: 253

STH 59

Good

Over: SEARLES CREEK

2.9M E JCT CTH SS, Green, WI

Built 1995 Load: 32.4 t ADT: 1,600

STH 92

Good

Over: ALLEN CREEK

2.6M E JCT CTH E, Green, WI

Built 1992 Load: 32.4 t ADT: 1,400

LRD CENTER RD

Good

Over: BURGY CREEK

1.4M E JCT CTH N, Green, WI

Built 1991 Load: 32.4 t ADT: 105

LRD JEFFREY RD

Good

Over: LITTLE RICHLAND CREEK

1.6M E JCT STH 69, Green, WI

Built 1991 Load: 32.4 t ADT: 123

LRD BUCKSKIN RD

Good

Over: BUCKSKIN SCHOOL CREEK

1.0M E JCT CTH J, Green, WI

Built 1992 Load: 32.4 t ADT: 79

LRD HAY HOLLOW RD

Good

Over: SAWMILL CREEK

0.7M N JCT CTH H, Green, WI

Built 1992 Load: 32.4 t ADT: 52

STH 11

Good

Over: PECATONICA RIVER OVRFW

0.5 M WEST OF BROWNTOWN O, Green, WI

Built 1998 Load: 32.4 t ADT: 4,700

LRD HOLSTEIN PRAIR

Good

Over: BR DOUGHERTY CREEK

1.0M W JCT CTH J, Green, WI

Built 1994 Load: 32.4 t ADT: 105

LRD 11TH STREET

Good

Over: THUNDER CREEK

0.1M W JCT STH 69, Green, WI

Built 1984 Load: 32.4 t ADT: 910

LRD PRESTON RD

Good

Over: OK CREEK

0.1M E JCT CTH OK, Green, WI

Built 1991 Load: 32.4 t ADT: 76

LRD FREIDIG RD

Good

Over: GILL CREEK

0.2M S JCT STH 92, Green, WI

Built 1999 Load: 32.4 t ADT: 75

LRD OLD MADISON RO

Good

Over: SPRING VALLEY CREEK

0.1M W JCT STH 69, Green, WI

Built 1999 Load: 32.4 t ADT: 527

LRD BEHNKE RD

Good

Over: GILL CREEK

1.0M E JCT CTH X, Green, WI

Built 2003 Load: 32.4 t ADT: 106

LRD SHANGHAI RD

Good

Over: OAKLEY BRANCH

0.7M S JCT CTH K, Green, WI

Built 2003 Load: 32.4 t ADT: 105

CTH K

Good

Over: OAKLEY BRANCH

0.1M W JCT CTH OK, Green, WI

Built 2006 Load: 32.4 t ADT: 367

CTH G

Good

Over: OK CREEK

1.9 MILES S. OF STH 11-81, Green, WI

Built 2008 Load: 32.4 t ADT: 1,400

CTH G

Good

Over: BR OK CREEK

0.5 MILES S. OF STH 11-81, Green, WI

Built 2009 Load: 32.4 t ADT: 1,400

CTH F

Good

Over: TRIB TO SUGAR R

0.1 M. S. JCT. STH 59, Green, WI

Built 2009 Load: 32.4 t ADT: 538

CTH J

Good

Over: TRIB. TO BUSHNELL CR

0.2M N JCT STH 81, Green, WI

Built 2010 Load: 32.4 t ADT: 801

Showing 8,901-8,950 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.