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

CNW RR

Unknown

Over: LRD SOUTH MAIN STREET

0.7M N JCT USH 41 TO N, Fond du Lac, WI

Built 1935 ADT: 11,700

STH 175

Unknown

Over: USH 151

AT INTERSECTION, Fond du Lac, WI

Built 2008 ADT: 11,500

SOO LINE

Unknown

Over: USH 8

0.1M E JCT CTH G, Forest, WI

Built 1934 ADT: 2,680

USH 61-USH 151

Unknown

Over: MISSISSIPPI RIVER 01

AT USH 61, Grant, WI

Built 1982 ADT: 99

STH 11 WB-STH 35 S

Unknown

Over: USH 61-USH 151-STH 35 SB

1.5M N IOWA STATE LINE, Grant, WI

Built 1981 ADT: 350

LRD BADGER RD

Unknown

Over: USH 61/151-STH 35

1.0M N JCT STH 11 TO E, Grant, WI

Built 1988 ADT: 9,350

USH 61/151 NB-STH

Unknown

Over: LRD SANDY HOOK RD

2.8M W JCT STH 11, Grant, WI

Built 1988 ADT: 440

USH 61/151 SB-STH

Unknown

Over: LRD SANDY HOOK RD

2.8M W JCT STH 11, Grant, WI

Built 1988 ADT: 250

USH 61/151 NB-STH

Unknown

Over: CTH HHH

1.0M W JCT CTH H, Grant, WI

Built 1993 ADT: 1,600

USH 61/151 SB-STH

Unknown

Over: CTH HHH

1.0M W JCT CTH H, Grant, WI

Built 1994 ADT: 1,600

USH 61/151 NB-STH

Unknown

Over: CTH H

0.5M W JCT CTH HHH, Grant, WI

Built 1993 ADT: 1,700

USH 61/151 SB-STH

Unknown

Over: CTH H

0.5M W JCT CTH HHH, Grant, WI

Built 1994 ADT: 1,700

USH 61 NB/ STH 35

Unknown

Over: USH 151

AT CTH HH, Grant, WI

Built 2005 ADT: 8,100

USH 151 NB

Unknown

Over: LRD MC ADAM RD

151, Grant, WI

Built 2005 ADT: 50

USH 151 SB

Unknown

Over: LRD MC ADAM RD

151, Grant, WI

Built 2005 ADT: 50

CTH D

Unknown

Over: USH 151

AT CTH D, Grant, WI

Built 2004 ADT: 5,750

STH 80

Unknown

Over: USH 151

AT STH 80, Grant, WI

Built 2003 ADT: 5,000

LRD EVERGREEN RD

Unknown

Over: USH 151

1.0M N JCT STH 80, Grant, WI

Built 2004 ADT: 10,000

USH 151 NB

Unknown

Over: BUSINESS USH 151

1.2M S JCT W MOUND RD, Grant, WI

Built 2004 ADT: 7,400

USH 151 SB

Unknown

Over: BUSINESS USH 151

1.2M S JCT W MOUND RD, Grant, WI

Built 2004 ADT: 7,400

USH 61/151 SB-STH

Unknown

Over: USH 61/151 NB ON RAMP (E

AT JCT USH 61-USH 151, Grant, WI

Built 2015 ADT: 110

BN RR

Unknown

Over: LRD LYNN HOLLOW LANE

1.5M S JCT STH 133, Grant, WI

Built 1920 ADT: 50

BN RR

Unknown

Over: LRD S. MAIN ST

0.1M S JCT STH 133, Grant, WI

Built 1930 ADT: 100

STH 69 SB-STH 81 E

Unknown

Over: STH 11

6.6M E JCT CTH M TO N, Green, WI

Built 1969 ADT: 15,200

STH 11 WB-STH 81 W

Unknown

Over: STH 69

0.8M N JCT STH 11 TO W, Green, WI

Built 1978 ADT: 6,500

STH 11 EB-STH 81 E

Unknown

Over: STH 69

0.8M N JCT STH 11 TO W, Green, WI

Built 1978 ADT: 6,500

STH 59

Unknown

Over: STH 11-STH 81

1.2M E JCT STH 69 TO N, Green, WI

Built 1978 ADT: 7,500

LRD CTH N/6TH AVE

Unknown

Over: STH 11

6.2M E JCT CTH M TO N, Green, WI

Built 1997 ADT: 7,300

BADGER STATE TRAIL

Unknown

Over: LRD 8TH ST

AT REC TRAIL, Green, WI

Built 2012 ADT: 14,900

IC RR

Unknown

Over: LRD 8TH ST

0.2M E JCT STH 69, Green, WI

Built 1928 ADT: 9,500

IC RR

Unknown

Over: LRD ALLISON RD

0.5M E JCT STH 69, Green, WI

Built 1910 ADT: 50

IC RR

Unknown

Over: LRD ROUND GROVE RD

0.5M E JCT CTH FF, Green, WI

Built 1960 ADT: 150

CMSTPP RR

Unknown

Over: LRD ALLEN RD

1.0M S JCT STH 11, Green, WI

Built 1960 ADT: 100

UNION PACIFIC RR

Unknown

Over: STH 44

0.2M N JCT CTH FF, Green Lake, WI

Built 1922 ADT: 1,201

CNW RR

Unknown

Over: CTH II

1.0M S JCT STH 44, Green Lake, WI

Built 1911 ADT: 75

USH 151 SBL

Unknown

Over: LRD BRENNAN RD

0.6M E JCT STH 23, Iowa, WI

Built 1979 ADT: 950

USH 151 NBL

Unknown

Over: LRD BRENNAN RD

0.5M E JCT STH 23, Iowa, WI

Built 1979 ADT: 950

USH 18 EB / USH 18

Unknown

Over: USH 151

3.0M N JCT STH 23 TO E, Iowa, WI

Built 1980 ADT: 10,200

USH 18 WB-USH 151

Unknown

Over: CTH Z

1.2M N JCT STH 191, Iowa, WI

Built 1980 ADT: 590

USH 18 EB-USH 151

Unknown

Over: CTH Z

1.1M N JCT STH 191, Iowa, WI

Built 1980 ADT: 590

USH 151 SB

Unknown

Over: STH 191

1.3M E JCT STH 23, Iowa, WI

Built 1979 ADT: 1,750

USH 151 NB

Unknown

Over: STH 191

1.4M E JCT STH 23, Iowa, WI

Built 1979 ADT: 1,750

LRD SECTION LINE R

Unknown

Over: USH 151

2.6M N JCT STH 23 TO E, Iowa, WI

Built 1980 ADT: 10,200

STH 23 NB

Unknown

Over: USH 151

1.0M N JCT STH 23 TO E, Iowa, WI

Built 1979 ADT: 10,200

USH 18 WB-USH 151

Unknown

Over: CTH H

6.4M N JCT CTH K, Iowa, WI

Built 1982 ADT: 170

USH 18 EB-USH 151

Unknown

Over: CTH H

6.3M N JCT CTH K, Iowa, WI

Built 1988 ADT: 170

USH 18 EB-USH 151

Unknown

Over: CTH ID | S. JONES STREET

0.8M S JCT CTH ID, Iowa, WI

Built 1988 ADT: 520

USH 18 WB-USH 151

Unknown

Over: LRD S JONES ST

AT JCT USH 18, Iowa, WI

Built 1983 ADT: 520

PEDESTRIAN

Unknown

Over: STH 23

3.8M E JCT CTH Y TO E, Iowa, WI

Built 1994 ADT: 2,700

CTH ID

Unknown

Over: USH 18 & 151

1.1M E JCT CTH T TO S, Iowa, WI

Built 2002 ADT: 15,700

Showing 851-900 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.