State profile · Near median Poor share

Wisconsin bridge safety

Condition ratings, load ratings, and Poor-condition data for every public highway bridge in Wisconsin, based on the FHWA National Bridge Inventory.

14,851
Public bridges
41.3%
Good condition
6.1%
Poor condition

Data updated May 2026

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 whose lowest applicable component is rated 0-4

-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 - Poor-condition share 20.4%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.

Condition Distribution

Wisconsin51.3%41.1%GoodFairPoor
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 by Poor-condition share (lower share = better)

States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below Wisconsin on the same metric.

MS

Mississippi

5.92% top marginal rate
Structure
Progressive
Burden @ $100K
$16,823

SC

South Carolina

6.10% top marginal rate
Structure
Progressive
Burden @ $100K
$5,396
Selected

WI

Wisconsin

6.13% top marginal rate
Structure
Progressive
Burden @ $100K
$14,851

NC

North Carolina

6.16% top marginal rate
Structure
Progressive
Burden @ $100K
$18,901

HI

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 the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.

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

Poor

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

Poor

Over: EVERGREEN CREEK

0.1M N JCT STH 64, Langlade, WI

Built 1916 Load: 3.2 t ADT: 6

LRD CORNELL LANE (

Poor

Over: BR COON CREEK

0.1M E JCT USH 14, Vernon, WI

Built 1985 Load: 3.2 t ADT: 10

All Bridges in Wisconsin

IH 41 SB

Unknown

Over: LRD MAIN ST

1.3M W JCT STH 114, Winnebago, WI

Built 1994 ADT: 8,000

IH 41 NB

Unknown

Over: LRD MAIN ST

1.3M W JCT STH 114, Winnebago, WI

Built 1994 ADT: 8,000

IH 41 SB

Unknown

Over: CTH O (NORTH STREET)

1.2M S JCT STH 150, Winnebago, WI

Built 1994 ADT: 3,100

IH 41 NB

Unknown

Over: CTH O (NORTH STREET)

1.2M S JCT STH 150, Winnebago, WI

Built 1994 ADT: 3,100

IH 41 SB

Unknown

Over: CTH II

1.1M E JCT CTH O, Winnebago, WI

Built 1994 ADT: 9,300

IH 41 NB

Unknown

Over: CTH II

TOWN OF MENASHA, Winnebago, WI

Built 1994 ADT: 9,300

IH 41 SB

Unknown

Over: LRD GREEN BAY ROAD

1.2M E JCT STH 441, Winnebago, WI

Built 1994 ADT: 4,800

IH 41 NB

Unknown

Over: LRD GREEN BAY ROAD

1.2M E JCT STH 441, Winnebago, WI

Built 1994 ADT: 4,800

IH 41 SB

Unknown

Over: CTH BB

3.5M E JCT USH 45, Winnebago, WI

Built 1992 ADT: 21,200

IH 41 NB

Unknown

Over: CTH BB

3.5M E JCT USH 45, Winnebago, WI

Built 1992 ADT: 21,200

STH 44-STH 91 E

Unknown

Over: IH 41

2.9M N JCT STH 26 TO S, Winnebago, WI

Built 1993 ADT: 48,600

USH 45 SB OFF RAMP

Unknown

Over: USH 10

USH 10 TOWN OF WINCHESTER, Winnebago, WI

Built 2002 ADT: 21,100

USH 10 EB OFF RAMP

Unknown

Over: USH 10

USH 10 TOWN OF WINCHESTER, Winnebago, WI

Built 2002 ADT: 21,100

USH 10 EB

Unknown

Over: LRD COLD SPRING ROAD

TOWN OF MENASHA, Winnebago, WI

Built 1997 ADT: 4,800

USH 10 WB

Unknown

Over: LRD COLD SPRING ROAD

TOWN OF MENASHA, Winnebago, WI

Built 1997 ADT: 4,800

USH 10 EB

Unknown

Over: LRD CTH CB

TOWN OF MENASHA, Winnebago, WI

Built 1997 ADT: 12,700

USH 10 WB

Unknown

Over: LRD CTH CB

TOWN OF MENASHA, Winnebago, WI

Built 1997 ADT: 12,700

USH 10 WB

Unknown

Over: LRD DALE RD

TOWN OF WINCHESTER, Winnebago, WI

Built 2002 ADT: 225

USH 10 EB

Unknown

Over: LRD DALE RD

TOWN OF WINCHESTER, Winnebago, WI

Built 2002 ADT: 225

USH 10 EB

Unknown

Over: LRD IRISH ROAD

TOWN OF MENASHA, Winnebago, WI

Built 1997 ADT: 1,400

USH 10 WB

Unknown

Over: LRD IRISH ROAD

TOWN OF MENASHA, Winnebago, WI

Built 1997 ADT: 1,400

USH 10 EB

Unknown

Over: LRD NORTH CLAYTON ROAD

TOWN OF CLAYTON, Winnebago, WI

Built 1997 ADT: 1,000

USH 10 WB

Unknown

Over: LRD NORTH CLAYTON ROAD

TOWN OF CLAYTON, Winnebago, WI

Built 1997 ADT: 1,000

STH 76

Unknown

Over: USH 10

1.0M E JCT N. OAKWOOD AVE, Winnebago, WI

Built 2002 ADT: 17,400

IH 41 SB

Unknown

Over: STH 76

0.9M N JCT CTH Y, Winnebago, WI

Built 1995 ADT: 19,600

IH 41 NB

Unknown

Over: USH 76

0.9M N JCT CTH Y, Winnebago, WI

Built 1995 ADT: 19,600

USH STH 45 NB OFF

Unknown

Over: USH 10WB/USH45 SB RAMP

AT USH 45, Winnebago, WI

Built 2003 ADT: 1,500

USH STH 45 NB OFF

Unknown

Over: USH 10 EB

3.1M E JCT USH 45 TO N, Winnebago, WI

Built 2003 ADT: 8,000

USH 10 WB OFF RAMP

Unknown

Over: USH 10 EB

AT USH 10W, Winnebago, WI

Built 2003 ADT: 7,700

USH 10 WB

Unknown

Over: LRD CTH M

AT USH 10, Winnebago, WI

Built 2003 ADT: 940

USH 10 EB

Unknown

Over: LRD CTH M

AT USH 10, Winnebago, WI

Built 2003 ADT: 940

STH 26

Unknown

Over: IH 41

2.9M N JCT CTH Z, Winnebago, WI

Built 2001 ADT: 42,900

USH 10 WB

Unknown

Over: LRD PIONEER RD

AT USH 10, Winnebago, WI

Built 2003 ADT: 875

USH 10 EB

Unknown

Over: LRD PIONEER RD

AT USH 10, Winnebago, WI

Built 2003 ADT: 875

USH 10 WB

Unknown

Over: LRD FAIRVIEW RD

AT USH 10, Winnebago, WI

Built 2003 ADT: 1,100

USH 10 EB

Unknown

Over: LRD FAIRVIEW RD

AT USH 10, Winnebago, WI

Built 2003 ADT: 1,100

USH 10 WB

Unknown

Over: LRD NORTH OAKWOOD AVENUE

AT USH 10, Winnebago, WI

Built 2003 ADT: 230

USH 10 EB

Unknown

Over: LRD NORTH OAKWOOD AVENUE

AT USH 10, Winnebago, WI

Built 2003 ADT: 230

LRD JACOBSON ROAD

Unknown

Over: IH 41

1.1M N JCT CTH II, Winnebago, WI

Built 2001 ADT: 104,000

CTH T

Unknown

Over: USH 45

AT INTERSECTION, Winnebago, WI

Built 2008 ADT: 19,600

USH 45 SB

Unknown

Over: CTH Y

TOWN OF OSHKOSH, Winnebago, WI

Built 2002 ADT: 470

USH 45 NB

Unknown

Over: CTH Y

TOWN OF OSHKOSH, Winnebago, WI

Built 2002 ADT: 470

LRD BROOKS RD

Unknown

Over: USH 45

1.5M N JCT USH 41, Winnebago, WI

Built 2002 ADT: 17,100

LRD SKELETON BRIDG

Unknown

Over: USH 45

2.6M N JCT USH 41, Winnebago, WI

Built 2002 ADT: 17,100

USH 45 SB

Unknown

Over: STH 116/CTH GG

AT USH 45, Winnebago, WI

Built 2003 ADT: 9,300

USH 45 NB

Unknown

Over: STH 116/CTH GG

AT USH 45, Winnebago, WI

Built 2003 ADT: 9,300

USH 10 WB

Unknown

Over: LRD MARSH RD

AT USH 10, Winnebago, WI

Built 2003 ADT: 150

USH 10 EB

Unknown

Over: LRD MARSH RD

AT USH 10, Winnebago, WI

Built 2003 ADT: 150

USH 10 WB

Unknown

Over: LRD TOWN LINE ROAD

0.4M N JCT EAST RD, Winnebago, WI

Built 2002 ADT: 100

USH 10 EB

Unknown

Over: LRD TOWN LINE ROAD

TOWN OF WOLF RIVER, Winnebago, WI

Built 2002 ADT: 100

Showing 2,801-2,850 of 14,851 bridges

Related

All states → | National rankings → | Understanding conditions → | Retired SD term explained →
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges.

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). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.

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.

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.