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%.

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.

All Bridges in Wisconsin

CTH S

Poor

Over: W FORK KNAPP CREEK

2.9 MILES W. OF CTH F, Crawford, WI

Built 1920 Load: 14.6 t ADT: 170

CTH PQ / WATER ST

Poor

Over: KOSHKONONG CREEK

0.1M W JCT USH 12, Dane, WI

Built 1957 Load: 14.6 t ADT: 1,480

CTH TT

Poor

Over: MAUNESHA RIVER

1.7M N JCT STH 19, Dane, WI

Built 1961 Load: 14.6 t ADT: 690

LRD LAKE KEGONSA R

Poor

Over: BADFISH CREEK

0.2M S JCT CTH A, Dane, WI

Built 1941 Load: 14.6 t ADT: 146

LRD GRAVEL PIT RD

Poor

Over: HAY CREEK

1.1M N CTH D, Eau Claire, WI

Built 1920 Load: 14.6 t ADT: 106

LRD WILLS LANE (DE

Poor

Over: FRENCH CREEK

0.6M N JCT CTH H, Grant, WI

Built 1950 Load: 14.6 t ADT: 50

LRD TOWN CENTER RD

Poor

Over: RICHLAND CREEK

0.4M W JCT CTH K, Green, WI

Built 1966 Load: 14.6 t ADT: 105

LRD ROASTER RD

Poor

Over: E PECATONICA RIVER

0.6M W JCT CTH X, Iowa, WI

Built 1969 Load: 14.6 t ADT: 208

LRD HYER RD (DEAD

Poor

Over: BIKE TRAIL

0.3M W JCT STH 80, Juneau, WI

Built 1970 Load: 14.6 t ADT: 10

LRD TWIN BRIDGE RD

Poor

Over: GALENA RIVER

1.3M W JCT CTH I, Lafayette, WI

Built 1965 Load: 14.6 t ADT: 176

CTH Z

Poor

Over: BILLINGS CREEK

2.8M S JCT CTH P TO E, Monroe, WI

Built 1978 Load: 14.6 t ADT: 54

LRD OLDE ONEIDA ST

Poor

Over: SOUTH CANAL

0.6M N JCT USH 10, Outagamie, WI

Built 1917 Load: 14.6 t ADT: 2,972

LRD WILLIAMSBURG D

Poor

Over: PIGEON CREEK

0.3M W JCT STH 57, Ozaukee, WI

Built 1970 Load: 14.6 t ADT: 235

STH 35

Poor

Over: BIG RIVER

1.9M N JCT CTH E TO N, Pierce, WI

Built 1970 Load: 14.6 t ADT: 2,600

LRD LATHERS RD

Poor

Over: TURTLE CREEK

0.1M N JCT CTH S, Rock, WI

Built 1887 Load: 14.6 t ADT: 474

LRD WOLFE RD

Poor

Over: BR TRAVERSE VALLEY CREEK

0.3M N JCT CTH X, Trempealeau, WI

Built 1961 Load: 14.6 t ADT: 23

LRD BLOOMINGDALE R

Poor

Over: BR W FK KICKAPOO RIVER

0.4M W JCT CTH S, Vernon, WI

Built 1925 Load: 14.6 t ADT: 205

LRD DUCK CREEK RD

Poor

Over: BR KICKAPOO RIVER

1.4M S JCT CTH SS, Vernon, WI

Built 1950 Load: 14.6 t ADT: 23

LRD E TYLER ST

Poor

Over: BAD RIVER

0.3M E JCT STH 13, Ashland, WI

Built 1920 Load: 16.2 t ADT: 119

LRD 24TH AVE

Poor

Over: HICKEY CREEK

1.1M S JCT CTH B, Barron, WI

Built 1950 Load: 16.2 t ADT: 47

LRD HOVEY VALLEY R

Poor

Over: ELK CREEK

0.2M N JCT CTH Z, Buffalo, WI

Built 1927 Load: 16.2 t ADT: 58

CTH KK

Poor

Over: LEE VALLEY CREEK

0.6M N JCT STH 37, Buffalo, WI

Built 1974 Load: 16.2 t ADT: 130

LRD BURNIKEL RD

Poor

Over: CLAM RIVER

2.8M E JCT STH 35, Burnett, WI

Built 1929 Load: 16.2 t ADT: 47

LRD WEEKS RD

Poor

Over: KILLSNAKE RIVER

1.4M N JCT CTH Y, Calumet, WI

Built 1972 Load: 16.2 t ADT: 41

CTH S

Poor

Over: YELLOW RIVER

0.8 M W CTH H, Chippewa, WI

Built 1955 Load: 16.2 t ADT: 220

LRD PARK RD (DNR)

Poor

Over: FISCHER RIVER

1.5M N JCT STH 64, Chippewa, WI

Built 1962 Load: 16.2 t ADT: 710

CTH MM

Poor

Over: HAY CREEK

0.2 M E CTH D, Chippewa, WI

Built 1945 Load: 16.2 t ADT: 410

LRD FREMONT RD

Poor

Over: S BR ONEILL CREEK

2.0M W JCT USH 10, Clark, WI

Built 1976 Load: 16.2 t ADT: 116

LRD MILL ST

Poor

Over: UNION PACIFIC RR

0.1M W JCT STH 60, Columbia, WI

Built 1900 Load: 16.2 t ADT: 79

CTH TT

Poor

Over: CRAWFISH RIVER

0.1M S JCT STH 16, Dodge, WI

Built 1956 Load: 16.2 t ADT: 422

LRD W MAIL RD

Poor

Over: ST CROIX RIVER 13

2.9M S JCT CTH M, Douglas, WI

Built 1963 Load: 16.2 t ADT: 107

CTH VV

Poor

Over: BEARGRASS CREEK

0.1M E CTH V, Eau Claire, WI

Built 1924 Load: 16.2 t ADT: 160

CTH K

Poor

Over: TAYCHEEDAH CREEK

0.5M S JCT STH 23, Fond du Lac, WI

Built 1936 Load: 16.2 t ADT: 3,600

CTH T

Poor

Over: TAYCHEEDAH CREEK

0.4M E JCT CTH K, Fond du Lac, WI

Built 1955 Load: 16.2 t ADT: 2,500

CTH V (RIENZI RD)

Poor

Over: DE NEVEU CREEK

1.1M W JCT USH 151, Fond du Lac, WI

Built 1967 Load: 16.2 t ADT: 1,600

CTH O

Poor

Over: PLATTE RIVER

2.7M E JCT USH 61, Grant, WI

Built 1956 Load: 16.2 t ADT: 600

LRD RATTLESNAKE RD

Poor

Over: BEETOWN BRANCH

1.8M S JCT STH 81, Grant, WI

Built 1950 Load: 16.2 t ADT: 37

LRD SLEEPY HOLLOW

Poor

Over: SAUNDERS CREEK

0.6M E JCT CTH S, Grant, WI

Built 1920 Load: 16.2 t ADT: 53

LRD MIDDLE JUDA RD

Poor

Over: RICHLAND CREEK

1.5M E JCT CTH K, Green, WI

Built 1975 Load: 16.2 t ADT: 158

LRD LAKEVIEW RD

Poor

Over: SNEAD CREEK

3.5M W JCT STH 23, Iowa, WI

Built 1945 Load: 16.2 t ADT: 52

LRD DROGSETH RD (D

Poor

Over: BOSTWICK CREEK

0.1M N JCT CTH I, La Crosse, WI

Built 1965 Load: 16.2 t ADT: 40

CTH O

Poor

Over: SPIRIT RIVER

0.5M S JCT STH 86, Lincoln, WI

Built 1962 Load: 16.2 t ADT: 414

STH 64-STH 107-W M

Poor

Over: WISCONSIN RIVER 39

3.4M E JCT CTH E, Lincoln, WI

Built 1927 Load: 16.2 t ADT: 6,200

CTH T

Poor

Over: BIG SOMO RIVER

1.3M S JCT USH 8, Lincoln, WI

Built 1971 Load: 16.2 t ADT: 86

LRD 1ST AVE

Poor

Over: BIG HAY MEADOW CREEK

1.0M E JCT CTH X, Lincoln, WI

Built 1917 Load: 16.2 t ADT: 75

CTH XX WASHINGTON

Poor

Over: BR CENTERVILLE CREEK

0.6M E JCT IH 43, Manitowoc, WI

Built 1917 Load: 16.2 t ADT: 795

CTH P

Poor

Over: BIG EAU PLEINE RIVER

1.5M E JCT CTH E TO W, Marathon, WI

Built 1958 Load: 16.2 t ADT: 297

LRD PLEASANT RD

Poor

Over: E BR YELLOW RIVER

1.5M S JCT STH 13, Marathon, WI

Built 1947 Load: 16.2 t ADT: 132

LRD W WISCONSIN AV

Poor

Over: HONEY CREEK

0.1M E JCT STH 181, Milwaukee, WI

Built 1934 Load: 16.2 t ADT: 7,600

LRD DIXIE RD

Poor

Over: SAUK CREEK

0.1M W JCT CTH KW, Ozaukee, WI

Built 1951 Load: 16.2 t ADT: 58

Showing 14,051-14,100 of 14,851 bridges

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.

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.