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

CTH J NB

Unknown

Over: USH 10

6.9M E JCT USH 51, Portage, WI

Built 2001 ADT: 17,200

CTH J SB

Unknown

Over: USH 10

6.8M E JCT USH 51, Portage, WI

Built 2001 ADT: 17,200

USH 10 EB

Unknown

Over: CTH A/ CTH B EAST

AT USH10, Portage, WI

Built 2004 ADT: 1,200

USH 10 WB

Unknown

Over: CTH A (CTH B EAST)

AT USH10, Portage, WI

Built 2004 ADT: 1,200

USH10 EB

Unknown

Over: CTH Q

AT USH10, Portage, WI

Built 2004 ADT: 500

USH 10 WB

Unknown

Over: CTH Q

AT USH10, Portage, WI

Built 2004 ADT: 500

USH 10 EB

Unknown

Over: CTH B

AT USH 10, Portage, WI

Built 2004 ADT: 2,400

USH 10 WB

Unknown

Over: CTH B

AT USH 10, Portage, WI

Built 2004 ADT: 1,200

USH 10 EB

Unknown

Over: LRD LAKE EMILY RD

AT USH 10, Portage, WI

Built 2004 ADT: 650

USH 10 WB

Unknown

Over: LRD LAKE EMILY RD

AT USH 10, Portage, WI

Built 2004 ADT: 650

USH 10 EB

Unknown

Over: LRD LAKE RD

AT USH 10, Portage, WI

Built 2004 ADT: 880

USH 10 WB

Unknown

Over: LRD LAKE RD

AT USH 10, Portage, WI

Built 2004 ADT: 880

USH 10 EB

Unknown

Over: WISCONSIN RIVER / RIVER

LOCATION UNKNOWN, PLEASE, Portage, WI

Built 2008 ADT: 99

USH 10 WB

Unknown

Over: WISCONSIN RIVER / RIVER

1 MI E JCT CTH E, Portage, WI

Built 2008 ADT: 99

IH 10EB RAMP TO I-

Unknown

Over: LRD SCENIC DRIVE N

AT USH 10, Portage, WI

Built 2008 ADT: 200

IH USH10 EB RAMP T

Unknown

Over: LRD SCENIC DRIVE

AT USH 10, Portage, WI

Built 2009 ADT: 200

IH I39 SB RAMP TO

Unknown

Over: LRD SCENIC DRIVE

AT IH39, Portage, WI

Built 2009 ADT: 200

IH USH10 EB RAMP T

Unknown

Over: IH 39

AT USH10, Portage, WI

Built 2008 ADT: 28,600

IH39 NB RAMP TO US

Unknown

Over: CTH X

XING OF IH39, Portage, WI

Built 2009 ADT: 500

STH 13/34 S OVER U

Unknown

Over: USH10 E

UNDER STH 34, Portage, WI

Built 2011 ADT: 8,400

USH 10 WB

Unknown

Over: CTH G

AT INTERSECTION, Portage, WI

Built 2011 ADT: 650

USH 10 EB

Unknown

Over: CTH G

AT USH10, Portage, WI

Built 2011 ADT: 650

CTH O

Unknown

Over: USH10

UNDER CTH "O", Portage, WI

Built 2010 ADT: 7,300

USH 10 EB

Unknown

Over: STH 34

AT XING OF USH10, Portage, WI

Built 2009 ADT: 2,400

USH 10WB

Unknown

Over: STH 34

AT USH10, Portage, WI

Built 2009 ADT: 2,400

USH 10 EB

Unknown

Over: CTH E

AT USH10, Portage, WI

Built 2009 ADT: 700

USH 10 WB

Unknown

Over: CTH E

AT USH10, Portage, WI

Built 2009 ADT: 700

LRD PORTER ROAD

Unknown

Over: IH39N-USH51NB

AT PORTER ROA, Portage, WI

Built 2009 ADT: 22,100

IH 39 NB/USH 51 NB

Unknown

Over: LRD RESERVE ST

1.5M N JCT STH 66, Portage, WI

Built 2015 ADT: 1,600

IH 39 SB/USH 51 SB

Unknown

Over: LRD RESERVE ST

1.5M N JCT STH 66, Portage, WI

Built 2015 ADT: 1,600

CANADIAN NATIONAL

Unknown

Over: LRD CHURCH ST

4.5M N JCT STH 54 TO W, Portage, WI

Built 1939 ADT: 99

TOMORROW RIVER STA

Unknown

Over: CTH HWY KK

AT FV&RR, Portage, WI

Built 1931 ADT: 8,666

SOO LINE

Unknown

Over: LRD A MAIN ST

0.1M S JCT CTH V, Portage, WI

Built 1908 ADT: 3,400

SOO LINE

Unknown

Over: LRD CUSTER RD

0.2M S JCT USH 10, Portage, WI

Built 1940 ADT: 40

SOO LINE

Unknown

Over: LRD STOCKTON RD

0.6M S JCT USH 10, Portage, WI

Built 1920 ADT: 40

SOO LINE

Unknown

Over: CTH B WILSON ST

0.2M W JCT CTH A TO S, Portage, WI

Built 1908 ADT: 1,790

SOO LINE

Unknown

Over: LRD LINCOLN ST

0.1M W JCT CTH A, Portage, WI

Built 1920 ADT: 600

SOO LINE

Unknown

Over: LRD SMOKEY RD

0.1M S JCT USH 10, Portage, WI

Built 1920 ADT: 40

STH 13

Unknown

Over: USH 8

7.7M E JCT STH 86, Price, WI

Built 1976 ADT: 1,500

CNW RR

Unknown

Over: STH 32

0.7M N JCT CTH G (A), Racine, WI

Built 1959 ADT: 12,400

STH 20-WASHINGTON

Unknown

Over: LRD MEMORIAL DR

1.2M N JCT STH 11, Racine, WI

Built 1969 ADT: 11,600

STH 20 WB

Unknown

Over: LRD STUART RD

1.5M N JCT STH 11, Racine, WI

Built 1964 ADT: 4,800

STH 20 EB

Unknown

Over: LRD STUART RD

1.5M N JCT STH 11, Racine, WI

Built 1978 ADT: 4,800

CMSTPP RR

Unknown

Over: STH 20

2.5M E JCT IH 94 TO W, Racine, WI

Built 1977 ADT: 25,800

LRD 6TH ST VIADUCT

Unknown

Over: LRD HOWE ST

CITY OF RACINE, Racine, WI

Built 1986 ADT: 75

STH 38-STATE ST

Unknown

Over: LRD WISCONSIN AVE

0.3M N JCT STH 20, Racine, WI

Built 1988 ADT: 3,100

STH 142 - BUSHNELL

Unknown

Over: STH 11/STH 36/STH 83

1.1M S JCT CTH J, Racine, WI

Built 2006 ADT: 8,900

LRD BREVER RD

Unknown

Over: STH 36/83/11

0.4 MI W JCT STH 142, Racine, WI

Built 2008 ADT: 12,300

CTH A

Unknown

Over: STH 36/83

2.3M N JCT STH 38, Racine, WI

Built 2006 ADT: 6,800

LRD KETTERHAGEN RD

Unknown

Over: STH 36/83

KETTERHAGEN RD, Racine, WI

Built 2008 ADT: 6,800

Showing 2,101-2,150 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.