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 39 SB / IH 90 E

Unknown

Over: USH 14

0.7M E JCT STH 26, Rock, WI

Built 2021 ADT: 28,800

IH 39 NB / IH 90 W

Unknown

Over: USH 14

0.7M E JCT STH 26, Rock, WI

Built 2020 ADT: 28,800

CMSTPP RR

Unknown

Over: USH 51

4.5M N JCT STH 81, Rock, WI

Built 1938 ADT: 8,240

IH 39 NB / IH 90 W

Unknown

Over: LRD RYAN ROAD

0.2 MI E JCT MORSE ST, Rock, WI

Built 2020 ADT: 4,500

IH 39 SB / IH 90 E

Unknown

Over: STH 26-MILTON AVE

0.4M N JCT USH 14, Rock, WI

Built 2021 ADT: 32,680

IH 39 NB / IH 90 W

Unknown

Over: STH 26-MILTON AVE

0.4M N JCT USH 14, Rock, WI

Built 2020 ADT: 32,680

IH 39 SB / IH 90 E

Unknown

Over: LRD KENNEDY RD & BIKE PA

0.9M N JCT USH 14, Rock, WI

Built 2021 ADT: 3,670

IH 39 NB / IH 90 W

Unknown

Over: LRD KENNEDY RD

0.9M N JCT USH 14, Rock, WI

Built 2020 ADT: 3,670

IH 39SB/90 EB

Unknown

Over: LRD TOWN LINE RD

1.7M W JCT CTH Y, Rock, WI

Built 2019 ADT: 1,600

IH 39 NB / IH 90 W

Unknown

Over: LRD TOWN LINE RD

1.7M W JCT CTH Y, Rock, WI

Built 2020 ADT: 1,580

LRD MANOGUE ROAD

Unknown

Over: IH 39 / IH 90

3.6M N JCT STH 26, Rock, WI

Built 2017 ADT: 53,500

IH 39 SB / IH 90 E

Unknown

Over: CTH M

2.1M W JCT STH 59, Rock, WI

Built 2019 ADT: 1,300

IH 39NB/90 WB

Unknown

Over: CTH M

2.1M W JCT STH 59, Rock, WI

Built 2020 ADT: 1,100

IH 39/90 SB/EB

Unknown

Over: LRD NEWVILLE RD

1.2M N JCT CTH M, Rock, WI

Built 2019 ADT: 1,200

IH 39 NB/ IH 90 WB

Unknown

Over: LRD NEWVILLE RD

1.2M N JCT CTH M, Rock, WI

Built 2020 ADT: 1,200

IH39SB/IH90EB

Unknown

Over: ROCK RIVER / ELLENDALE R

0.1M N JCT STH 59, Rock, WI

Built 2018 ADT: 1,750

IH 39 NB

Unknown

Over: ROCK RIVER

0.3 MI W JCT STH 59, Rock, WI

Built 2016 ADT: 1,750

STH 59

Unknown

Over: IH 39

8.2 M N JCT STH 26, Rock, WI

Built 2016 ADT: 59,100

IH-39 SB/90 EB

Unknown

Over: LRD RYAN ROAD

0.2 MI E JCT MORSE ST, Rock, WI

Built 2021 ADT: 4,540

BELOIT COLLEGE POW

Unknown

Over: USH 51

99990000000 004, Rock, WI

CMSTPP RR

Unknown

Over: USH 51-N PARKER DR

0.2M N JCT STH 26, Rock, WI

Built 1942 ADT: 12,480

CNW RR

Unknown

Over: CTH E

1.2M S JCT USH 14, Rock, WI

Built 1902 ADT: 2,550

CNW RR

Unknown

Over: LRD CAINVILLE RD

0.6M S JCT CTH A, Rock, WI

Built 1900 ADT: 75

CNW RR

Unknown

Over: CTH J

0.7M N JCT CTH X, Rock, WI

Built 1905 ADT: 900

CMSTPP RR

Unknown

Over: LRD CROSBY RD

0.2M S JCT STH 11, Rock, WI

Built 1900 ADT: 225

CMSTPP RR

Unknown

Over: LRD CARVERS RD

2.7M S JCT USH 14, Rock, WI

Built 1906 ADT: 75

CMSTPP RR

Unknown

Over: LRD MILTON RD

0.7M S JCT USH 14, Rock, WI

Built 1907 ADT: 150

CMSTPP RR

Unknown

Over: LRD PRAIRIE AVE

0.3M E JCT USH 51, Rock, WI

Built 1930 ADT: 150

CNW RR

Unknown

Over: CTH J

1.1M E JCT CTH S, Rock, WI

Built 1905 ADT: 610

CNW RR

Unknown

Over: LRD ROCKPORT RD

0.3M W JCT USH 51, Rock, WI

Built 1900 ADT: 5,380

CMSTPP RR

Unknown

Over: LRD ROCKPORT RD

0.1M W JCT USH 51, Rock, WI

Built 1907 ADT: 5,380

CNW RR

Unknown

Over: LRD FRANKLIN ST

0.1M N JCT USH 51, Rock, WI

Built 1938 ADT: 4,540

CMSTPP RR

Unknown

Over: LRD N MAIN ST

0.1M N JCT USH 51, Rock, WI

Built 1890 ADT: 4,500

CNW RR

Unknown

Over: LRD N RIVER ST

0.1M N JCT USH 51, Rock, WI

Built 1925 ADT: 4,000

CMSTPP RR

Unknown

Over: LRD RIVERSIDE ST

0.2M W JCT USH 51, Rock, WI

Built 1900 ADT: 1,600

CNW RR

Unknown

Over: LRD RIVERSIDE ST

0.1M W JCT USH 51, Rock, WI

Built 1907 ADT: 1,600

CNW RR

Unknown

Over: LRD ELGIN AVE

1.0M W JCT USH 51, Rock, WI

Built 1901 ADT: 800

SOO LINE

Unknown

Over: LRD LUDWIGSON ST

0.2M E JCT CTH G, Rusk, WI

Built 1945 ADT: 600

IH 90 EB-IH 94 EB

Unknown

Over: LRD SCHEPP RD

0.6M N JCT CTH U, Sauk, WI

Built 1961 ADT: 110

IH 90 WB-IH 94 WB

Unknown

Over: LRD SCHEPPS RD

0.6M N JCT CTH U, Sauk, WI

Built 1961 ADT: 110

LRD VAN HOOSEN RD

Unknown

Over: IH 90-IH 94

6.2M E JCT USH 12 TO E, Sauk, WI

Built 1961 ADT: 39,500

CTH T

Unknown

Over: IH 90-IH 94

5.2M E JCT USH 12 TO E, Sauk, WI

Built 1961 ADT: 39,500

LRD GILLEM RD

Unknown

Over: IH 90-IH 94

3.4M E JCT USH 12 TO E, Sauk, WI

Built 1960 ADT: 39,500

IH 90 EB-IH 94 EB

Unknown

Over: USH 12

1.8M E JCT STH 23 (B), Sauk, WI

Built 1960 ADT: 16,300

IH 90 WB-IH 94 WB

Unknown

Over: USH 12

1.8M E JCT STH 23 (B), Sauk, WI

Built 1960 ADT: 13,600

CTH A

Unknown

Over: IH 90-IH 94

2.3M E JCT USH 12 (B), Sauk, WI

Built 1960 ADT: 39,500

IH 90 EB-IH 94 EB

Unknown

Over: CTH H

0.5M W JCT STH 13, Sauk, WI

Built 1960 ADT: 2,900

IH 90 WB-IH 94 WB

Unknown

Over: CTH H

0.5M W JCT STH 13, Sauk, WI

Built 1961 ADT: 2,900

IH 90 EB-IH 94 EB

Unknown

Over: STH 13

0.3M N JCT IH 90 TO E, Sauk, WI

Built 1961 ADT: 4,320

IH 90 WB-IH 94 WB

Unknown

Over: STH 13 NB

0.4M N JCT IH 90 TO E, Sauk, WI

Built 1961 ADT: 4,320

Showing 2,251-2,300 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.