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

STH 35

Good

Over: DMIR RR

0.3M N JCT CTH C TO E, Douglas, WI

Built 1977 Load: 34.0 t ADT: 6,000

CTH P

Good

Over: LAKE CREEK

1.4M S JCT STH 13, Douglas, WI

Built 1987 Load: 34.0 t ADT: 229

USH 2-USH 53-E 2ND

Good

Over: BLUFF CREEK

3.7M E JCT USH 53 (A), Douglas, WI

Built 1989 Load: 34.0 t ADT: 23,300

LRD KINGSDALE RD

Good

Over: TOAD CREEK

2.8M W JCT STH 35, Douglas, WI

Built 1997 Load: 34.0 t ADT: 75

LRD SWEDISH HWY

Good

Over: UPPER TAMARACK RIVER

2.0M N JCT CTH T, Douglas, WI

Built 2000 Load: 34.0 t ADT: 53

LRD PARK ROAD

Good

Over: BRULE RIVER

0.6M W CTH H, Douglas, WI

Built 2001 Load: 34.0 t ADT: 10

CTH SMITH BRIDGE R

Good

Over: MINONG FLOWAGE

0.3 MILES S. JCT CTH T, Douglas, WI

Built 2015 Load: 34.0 t ADT: 100

LRD 290TH ST

Good

Over: VANCE CREEK

0.9M N JCT CTH V, Dunn, WI

Built 1987 Load: 34.0 t ADT: 76

LRD 50TH AVE

Good

Over: MISSOURI CREEK

0.4M W JCT CTH D, Dunn, WI

Built 1988 Load: 34.0 t ADT: 159

LRD 350TH AVE

Good

Over: KNIGHTS CREEK

0.2M W JCT CTH D, Dunn, WI

Built 1988 Load: 34.0 t ADT: 53

LRD 10TH AVE

Good

Over: ROCK CREEK

0.1M E JCT CTH H, Dunn, WI

Built 1991 Load: 34.0 t ADT: 253

LRD 250TH ST.

Good

Over: HAY CREEK

0.6M S JCT USH 12, Dunn, WI

Built 1989 Load: 34.0 t ADT: 76

LRD 770TH AVE

Good

Over: N BR WILSON CREEK

0.8M N JCT USH 12, Dunn, WI

Built 1991 Load: 34.0 t ADT: 101

LRD E 3RD ST

Good

Over: BR RED CEDAR RIVER

0.2M E JCT STH 25, Dunn, WI

Built 2004 Load: 34.0 t ADT: 211

STH 64

Good

Over: BOLEN CREEK

0.1M E JCT CTH Q, Dunn, WI

Built 2002 Load: 34.0 t ADT: 1,600

STH 64

Good

Over: BOLEN CREEK

0.2M E JCT CTH Q, Dunn, WI

Built 2003 Load: 34.0 t ADT: 1,600

USH 53

Good

Over: BEAVER CREEK

0.6M N JCT CTH D TO E, Eau Claire, WI

Built 1977 Load: 34.0 t ADT: 2,400

LRD TIOGA RD

Good

Over: BLACK CREEK

1.8M E CTH H, Eau Claire, WI

Built 1993 Load: 34.0 t ADT: 51

USH 53 SB

Good

Over: OTTER CR

.3 MI. NORTH OF USH 12, Eau Claire, WI

Built 2006 Load: 34.0 t ADT: 21,500

IH 94 WB

Good

Over: LOWE CREEK

2.6M E JCT STH 37 TO N, Eau Claire, WI

Built 2015 Load: 34.0 t ADT: 14,550

IH 94 EB

Good

Over: LOWE CREEK

2.6M E JCT STH 37 TO N, Eau Claire, WI

Built 2015 Load: 34.0 t ADT: 14,550

CTH N

Good

Over: PINE RIVER

3.0M S JCT CTH D, Florence, WI

Built 1998 Load: 34.0 t ADT: 1,300

STH 26

Good

Over: W BR ROCK RIVER

1.8M N JCT CTH TC (N), Fond du Lac, WI

Built 1997 Load: 34.0 t ADT: 7,900

LRD OLD HWY. 139

Good

Over: POPPLE RIVER

1.0M W JCT STH 139, Forest, WI

Built 2001 Load: 34.0 t ADT: 60

STH 133

Good

Over: KUENSTER CREEK

5.9M N JCT CTH VV, Grant, WI

Built 1952 Load: 34.0 t ADT: 400

STH 35

Good

Over: BLAKE FORK CREEK

2.8M N JCT CTH U TO S, Grant, WI

Built 1979 Load: 34.0 t ADT: 2,400

LRD DUTCH HOLLOW R

Good

Over: BOICE CREEK

2.4M W JCT CTH U, Grant, WI

Built 1982 Load: 34.0 t ADT: 107

LRD BOICE CREEK RD

Good

Over: PIGEON RIVER

0.1M S JCT CTH N, Grant, WI

Built 1984 Load: 34.0 t ADT: 76

LRD HOPEWELL RD

Good

Over: PLATTE RIVER

3.9M W JCT STH 80, Grant, WI

Built 1985 Load: 34.0 t ADT: 53

USH 18-STH 35

Good

Over: LANE CREEK

0.7M E JCT CTH C, Grant, WI

Built 1992 Load: 34.0 t ADT: 4,000

STH 81

Good

Over: BR RATTLESNAKE CREEK

1.7M E JCT CTH Y, Grant, WI

Built 1999 Load: 34.0 t ADT: 840

LRD PINE KNOB RD

Good

Over: GRANT RIVER

0.6M S JCT CTH K, Grant, WI

Built 1997 Load: 34.0 t ADT: 208

LRD MCADAM RD

Good

Over: MCADAM BRANCH

1.7M E JCT USH 151, Grant, WI

Built 1997 Load: 34.0 t ADT: 109

LRD WILLOW BRANCH

Good

Over: WILLOW BRANCH CREEK

0.5M E JCT STH 81, Grant, WI

Built 1998 Load: 34.0 t ADT: 104

CTH Q

Good

Over: FENNIMORE CREEK

2.9M W JCT CTH G, Grant, WI

Built 1998 Load: 34.0 t ADT: 519

LRD CTH K

Good

Over: BIG GREEN RIVER

5.7M E JCT STH 133, Grant, WI

Built 1998 Load: 34.0 t ADT: 381

CTH X

Good

Over: GASNER HOLLOW CREEK

1.8M W JCT CTH P, Grant, WI

Built 2000 Load: 34.0 t ADT: 455

LRD CEMETERY HILL

Good

Over: LOUISBURG CREEK

0.7M S JCT CTH H, Grant, WI

Built 2003 Load: 34.0 t ADT: 100

LRD GRANDVIEW RD

Good

Over: BR LEGGETT CREEK

1.6M E JCT CTH E, Grant, WI

Built 2002 Load: 34.0 t ADT: 132

LRD DRY HOLLOW RD

Good

Over: DRY HOLLOW CREEK

1.4M E JCT CTH A, Grant, WI

Built 2003 Load: 34.0 t ADT: 106

STH 81

Good

Over: PLATTE RIVER

4.4M E JCT USH 61 TO S, Grant, WI

Built 2011 Load: 34.0 t ADT: 3,900

LRD LABELLE ST

Good

Over: SAUNDERS CR

0.2M E JCT VALLEY ST, Grant, WI

Built 2004 Load: 34.0 t ADT: 830

LRD BIG GREEN RD

Good

Over: BR BIG GREEN RIVER

0.6M S JCT CTH K, Grant, WI

Built 2004 Load: 34.0 t ADT: 102

LRD HILLDALE RD

Good

Over: BR MARTIN BRANCH

1.8M W JCT CTH K, Grant, WI

Built 2006 Load: 34.0 t ADT: 104

CTH KS

Good

Over: JUDA BRANCH

0.2M E JCT CTH S, Green, WI

Built 1988 Load: 34.0 t ADT: 1,000

STH 59-MAIN ST

Good

Over: SUGAR RIVER

0.8M E JCT CTH F, Green, WI

Built 1995 Load: 34.0 t ADT: 3,800

LRD DECATUR-SYLVES

Good

Over: SEARLES CR

0.9 MILES N. JCT CTH S, Green, WI

Built 1997 Load: 34.0 t ADT: 79

LRD DUNCAN HILL RD

Good

Over: TROTTER BRANCH

0.6M S JCT STH 81, Green, WI

Built 2000 Load: 34.0 t ADT: 109

LRD SMOCK VALLEY R

Good

Over: BR SMOCK CREEK

1.5M N JCT STH 11, Green, WI

Built 2005 Load: 34.0 t ADT: 129

LRD JORDAN-WIOTA R

Good

Over: BR E BR PECATONICA RIVER

1.2M S JCT CTH Y, Green, WI

Built 2006 Load: 34.0 t ADT: 87

Showing 9,751-9,800 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.