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

LRD BIRD ST

Unknown

Over: USH 151

0.6M N JCT STH 19 TO E, Dane, WI

Built 1969 ADT: 35,800

USH 151 NB

Unknown

Over: LRD COLUMBUS ST

1.5M N JCT STH 19, Dane, WI

Built 1970 ADT: 4,600

USH 151 SB

Unknown

Over: LRD COLUMBUS ST

1.5M N JCT STH 19, Dane, WI

Built 1970 ADT: 4,600

USH 151 NB

Unknown

Over: CTH VV (TWIN LANE RD)

TOWN OF BRISTOL, Dane, WI

Built 1990 ADT: 800

USH 151 SB

Unknown

Over: CTH VV

2.0M S JCT CTH V, Dane, WI

Built 1991 ADT: 880

CTH VV (ELDER LANE

Unknown

Over: USH 151

2.2M N JCT CTH N, Dane, WI

Built 1991 ADT: 25,600

CTH V

Unknown

Over: USH 151

2.4M N JCT CTH VV, Dane, WI

Built 1991 ADT: 24,700

IH 90 WB-IH 94 WB

Unknown

Over: CTH T

1.0M E JCT STH 30, Dane, WI

Built 1997 ADT: 5,800

LRD DEANSVILLE RD

Unknown

Over: USH 151

2.0M N JCT CTH V, Dane, WI

Built 1991 ADT: 24,500

USH 51 NB

Unknown

Over: STH 19

1.0M E JCT IH 90 TO W, Dane, WI

Built 1971 ADT: 14,300

USH 51 SB

Unknown

Over: STH 19

1.0M E JCT IH 90 TO W, Dane, WI

Built 1971 ADT: 14,300

USH 18 WB-USH 151

Unknown

Over: LRD SAND ROCK RD

2.1M N JCT CTH JG, Dane, WI

Built 1984 ADT: 251

USH 18 EB/151 NB

Unknown

Over: LRD SAND ROCK RD

2.1M N JCT CTH JG, Dane, WI

Built 1988 ADT: 251

CTH JG

Unknown

Over: USH 18-USH 151

1.5M E JCT STH 78, Dane, WI

Built 1984 ADT: 18,000

USH 18 WB-USH 151

Unknown

Over: STH 92

1.5M E JCT STH 78, Dane, WI

Built 1984 ADT: 1,800

USH 18 EB-USH 151

Unknown

Over: STH 92

1.5M E JCT STH 78, Dane, WI

Built 1988 ADT: 1,800

CTH ID

Unknown

Over: USH 18-USH 151

0.9M E JCT STH 92, Dane, WI

Built 1984 ADT: 20,700

STH 78

Unknown

Over: USH 18-USH 151

0.6M E JCT CTH E TO S, Dane, WI

Built 1984 ADT: 17,800

IH 39 SB/IH 90 EB

Unknown

Over: STH 30 WB

0.4M W JCT IH 94 TO W, Dane, WI

Built 1997 ADT: 20,950

IH 39 NB/90 WB

Unknown

Over: IH RAMP IH 94 WB TO IH 9

0.2M W JCT IH 94 TO W, Dane, WI

Built 1997 ADT: 10,400

IH 90 WB

Unknown

Over: STH 30 EB

1.9M E JCT USH 51 TO N, Dane, WI

Built 1997 ADT: 6,200

CTH MM - RIMROCK R

Unknown

Over: USH 12/18-W BELTLINE

0.8M E JCT USH 151 TO N, Dane, WI

Built 1988 ADT: 120,000

LRD SOUTH TOWNE DR

Unknown

Over: USH 12/18-S BELTLINE

0.8M E JCT CTH MC, Dane, WI

Built 1988 ADT: 127,500

USH 12/18 EB-S BEL

Unknown

Over: CTH BB MONONA DR

0.5M S JCT BROADWAY ST, Dane, WI

Built 1988 ADT: 21,800

USH 12/18 WB-S BEL

Unknown

Over: CTH BB MONONA DR

0.5M S JCT BROADWAY ST, Dane, WI

Built 1988 ADT: 21,800

USH 12 WB-USH 18 W

Unknown

Over: USH 51

2.4M N JCT CTH MN, Dane, WI

Built 1988 ADT: 48,700

USH 12 EB-USH 18 E

Unknown

Over: USH 51

2.3M N JCT CTH MN, Dane, WI

Built 1988 ADT: 48,700

STH 30 WB

Unknown

Over: USH 51-STOUGHTON RD

4.2M N JCT USH 12 TO E, Dane, WI

Built 1996 ADT: 48,300

STH 30 EB

Unknown

Over: USH 51-STOUGHTON RD

4.2M N JCT USH 12 TO E, Dane, WI

Built 1996 ADT: 27,250

USH 51 SB

Unknown

Over: LRD MILWAUKEE ST

CITY OF MADISON, Dane, WI

Built 1996 ADT: 11,500

USH 51 NB

Unknown

Over: LRD MILWAUKEE ST

CITY OF MADISON, Dane, WI

Built 1996 ADT: 11,500

IH 90 EB

Unknown

Over: STH 30 EB

1.8M E JCT USH 51 TO N, Dane, WI

Built 1997 ADT: 23,300

PEDESTRIAN WALKWAY

Unknown

Over: USH 51-STOUGHTON RD

3.5M N JCT USH 12 TO E, Dane, WI

Built 1979 ADT: 53,250

LRD TOWN HALL ROAD

Unknown

Over: USH 18-USH 151

1.6M E JCT STH 92, Dane, WI

Built 1991 ADT: 23,200

LRD LUNDE LANE

Unknown

Over: USH 18-USH 151

2.1M E JCT STH 92, Dane, WI

Built 1991 ADT: 23,200

CTH PD

Unknown

Over: USH 18-USH 151

0.4M E JCT CTH P TO N, Dane, WI

Built 1991 ADT: 23,200

USH 18 WB-USH 151

Unknown

Over: CTH J

1.7M N JCT CTH G, Dane, WI

Built 1991 ADT: 880

USH 51 NB

Unknown

Over: LRD TAYLOR ST

0.6M N JCT CTH MN, Dane, WI

Built 1992 ADT: 819

USH 51 NB

Unknown

Over: LRD SIGGELKOW RD

2.4M E JCT CTH AB, Dane, WI

Built 1992 ADT: 7,600

USH 51 SB

Unknown

Over: LRD SIGGELKOW RD

2.4M E JCT CTH AB, Dane, WI

Built 1992 ADT: 7,600

USH 151 SB

Unknown

Over: LRD AMERICAN PARKWAY

0.1M W JCT BURKE TWN RD, Dane, WI

Built 1991 ADT: 4,800

USH 151 NB

Unknown

Over: LRD AMERICAN PARKWAY

0.1M W JCT BURKE TWN RD, Dane, WI

Built 1991 ADT: 4,800

USH 151 SB

Unknown

Over: LRD DUAL RAMP

0.1M W JCT BURKE TWN RD, Dane, WI

Built 1991 ADT: 4,200

USH 151 NB

Unknown

Over: LRD DUAL RAMP

0.1M W JCT BURKE TWN RD, Dane, WI

Built 1991 ADT: 4,200

USH 18 WB-USH 151

Unknown

Over: LRD FITCHRONA RD

0.7M S JCT CTH PD, Dane, WI

Built 1994 ADT: 5,800

USH 18 EB-USH 151

Unknown

Over: LRD FITCHRONA RD

0.7M S JCT CTH PD, Dane, WI

Built 1994 ADT: 5,800

IH RAMP IH 90 WB-S

Unknown

Over: IH 90 EB

0.5M E JCT IH 94 TO E, Dane, WI

Built 1994 ADT: 54,500

CTH G

Unknown

Over: USH 18-USH 151

2.7M E JCT CTH J, Dane, WI

Built 1993 ADT: 24,700

LRD RAMP W-1

Unknown

Over: USH 18-USH 151

0.6M E JCT CTH G TO S, Dane, WI

Built 1995 ADT: 26,700

USH 18 EB-USH 151

Unknown

Over: STH 69

3.5M N JCT CTH PB TO S, Dane, WI

Built 1994 ADT: 6,200

Showing 451-500 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.