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 HICKORY AVE

Unknown

Over: USH 10 EB

1.7M E JCT USH 45 TO S, Winnebago, WI

Built 2002 ADT: 17,400

LRD CTH II

Unknown

Over: USH 45

TN WINCHESTER, Winnebago, WI

Built 2002 ADT: 15,200

CTH G

Unknown

Over: USH 45

1.0M N JCT USH 45, Winnebago, WI

Built 2003 ADT: 15,200

PEDESTRIAN BRIDGE

Unknown

Over: USH 45 - S MAIN ST

2.0M N JCT CTH I, Winnebago, WI

Built 1985 ADT: 16,000

LRD CECIL ST.

Unknown

Over: LRD HARRISON ST.

AT INTERSECTION, Winnebago, WI

Built 2007 ADT: 99

CTH E (WITZEL AVE

Unknown

Over: IH 41

AT INTERSECTION, Winnebago, WI

Built 2010 ADT: 64,100

STH 21

Unknown

Over: IH 41

AT STH 21, Winnebago, WI

Built 2012 ADT: 70,500

USH 45

Unknown

Over: IH 41

AT INTERSECTION, Winnebago, WI

Built 2011 ADT: 59,900

IH 41NB TO 45NB RA

Unknown

Over: USH I41 & USH 45

IH 41 NB, Winnebago, WI

Built 2012 ADT: 78,100

USH 45 SB RAMP

Unknown

Over: IH USH 45 SB TO IH 41 SB

AT INTERSECTION, Winnebago, WI

Built 2011 ADT: 11,700

IH USH 45 TO IH 41

Unknown

Over: IH USH 45 SB TO IH 41SB

AT INTERSECTION, Winnebago, WI

Built 2010 ADT: 4,000

LRD LAKE BUTTE DES

Unknown

Over: IH 41

AT INTERSECTION, Winnebago, WI

Built 2010 ADT: 78,100

LRD SNELL ROAD

Unknown

Over: IH 41

AT INTERSECTION, Winnebago, WI

Built 2009 ADT: 59,900

CTH K (20TH AVE)

Unknown

Over: IH 41

AT INTERSECTION, Winnebago, WI

Built 2010 ADT: 64,100

LRD NINTH AVENUE

Unknown

Over: IH 41

AT INTERSECTION, Winnebago, WI

Built 2011 ADT: 64,100

CTH Y

Unknown

Over: IH 41

AT CTH Y, Winnebago, WI

Built 2014 ADT: 59,900

LRD BREEZEWOOD LN

Unknown

Over: IH 41

AT INTERSECTION, Winnebago, WI

Built 2011 ADT: 56,800

CTH GG

Unknown

Over: IH 41

AT CTH GG, Winnebago, WI

Built 2014 ADT: 59,900

LRD WOODLAND ROAD

Unknown

Over: USH 45

AT INTERSECTION, Winnebago, WI

Built 2011 ADT: 15,200

LRD LAKEVIEW RD

Unknown

Over: USH 45

AT OAKRIDGE RD, Winnebago, WI

Built 2012 ADT: 15,200

LRD GRANDVIEW RD

Unknown

Over: USH 45

AT INTERSECTION, Winnebago, WI

Built 2011 ADT: 15,200

USH 10 EB

Unknown

Over: IH 41 NB & SB & WCL RR

1.8 MI S JCT W PROSPECT A, Winnebago, WI

Built 2016 ADT: 104,000

USH 10 WB

Unknown

Over: IH 41 & WCL RR

1.6M N JCT CTH II, Winnebago, WI

Built 2018 ADT: 104,000

IH 41 NB OFF RAMP

Unknown

Over: USH 10 EB TO IH 41 NB RA

AT IH 41 NB OFF RAMP TO U, Winnebago, WI

Built 2015 ADT: 5,100

IH USH 10 WB RAMP

Unknown

Over: IH 41

USH 10/IH 41 INTERCHANGE, Winnebago, WI

Built 2018 ADT: 104,000

IH USH 10 WB/STH 4

Unknown

Over: IH USH 10 EB TO IH 41 NB

USH 10/STH 441/IH 41 INTE, Winnebago, WI

Built 2018 ADT: 5,100

IH 41 NB OFF RAMP

Unknown

Over: IH 41

USH 10/STH 441/IH 41 INTE, Winnebago, WI

Built 2018 ADT: 104,000

IH USH 10 EB OFF R

Unknown

Over: IH 41

PLEASE UDPATE LOCATION, Winnebago, WI

Built 2018 ADT: 104,000

USH 10 EB/STH 441

Unknown

Over: LRD TAYCO STREET

0.2 MI N JCT 9TH ST, Winnebago, WI

Built 2016 ADT: 3,500

USH 10 WB/STH 441

Unknown

Over: LRD TAYCO STREET

0.2 MI N JCT 9TH ST, Winnebago, WI

Built 2016 ADT: 3,500

USH 441NB/USH 10 E

Unknown

Over: CTH P INTERCHANGE

AT USH 10, Winnebago, WI

Built 2016 ADT: 20,500

USH 10 WB/STH 441

Unknown

Over: CTH P INTERCHANGE

AT USH 10, Winnebago, WI

Built 2016 ADT: 20,500

USH 10 EB/STH 441

Unknown

Over: CTH AP (MIDWAY RD)

0.3M E JCT CTH P, Winnebago, WI

Built 2018 ADT: 6,100

USH 10 WB/STH 441

Unknown

Over: CTH AP (MIDWAY RD)

0.3M E JCT CTH P, Winnebago, WI

Built 2018 ADT: 6,100

STH 13/34

Unknown

Over: LRD DURABEAUTY LANE

0.5M E JCT CTH F, Wood, WI

Built 1993 ADT: 500

STH 13 NB

Unknown

Over: LRD PEACH AVE

AT STH13, Wood, WI

Built 2003 ADT: 8,200

STH 13 SB

Unknown

Over: LRD PEACH AVE

AT STH13, Wood, WI

Built 2003 ADT: 8,300

WCL RR

Unknown

Over: LRD PEACH AVE

AT WCL RR, Wood, WI

Built 2003 ADT: 30

WISCONSN CENTRAL R

Unknown

Over: STH 13

0.4 MI. N JCT STH 97, Wood, WI

Built 2003 ADT: 16,300

LRD PED.OVERPASS O

Unknown

Over: STH 13

AT PED OVERPASS, Wood, WI

Built 2003 ADT: 16,648

LRD WASHINGTON AVE

Unknown

Over: USH 10

AT WASHINGTON AVE, Wood, WI

Built 2010 ADT: 4,300

STH 13S - CTH A

Unknown

Over: USH 10

AT CTH A, Wood, WI

Built 2011 ADT: 8,700

USH 10 EB

Unknown

Over: CTH P / R/R

AT USH 10, Wood, WI

Built 2011 ADT: 850

USH 10 WB

Unknown

Over: CTH P / CAN R/R

AT USH 10WB, Wood, WI

Built 2011 ADT: 850

LRD FAIRPLAY RD (D

Fair

Over: FAIRPLAY CREEK

0.3M S JCT STH 11, Grant, WI

Built 1930 Load: 3.2 t ADT: 40

LRD BRUCKNER RD

Fair

Over: BR PINE CREEK

1.7M W JCT CTH T, Calumet, WI

Built 1920 Load: 4.9 t ADT: 41

LRD SHAWHILL RD

Fair

Over: UNION PACIFIC RR

0.5M N JCT CTH S, Dodge, WI

Built 1958 Load: 4.9 t ADT: 411

LRD VILLAGE RD (DE

Fair

Over: HILL POINT CREEK

0.2M E JCT STH 154, Sauk, WI

Built 1938 Load: 4.9 t ADT: 40

CTH WW

Fair

Over: BR SEYMOUR CREEK

0.3M N JCT CTH W, Vernon, WI

Built 1950 Load: 4.9 t ADT: 282

LRD PINE AVE

Fair

Over: PINE RIVER

2.0M S JCT STH 82, Vernon, WI

Built 1955 Load: 4.9 t ADT: 47

Showing 2,851-2,900 of 14,851 bridges

Related

All states → | National rankings → | Understanding conditions → | SD bridges explained →
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.