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

STH 175-APPLETON A

Fair

Over: BR MENOMONEE RIVER

2.3 MI N JCT USH 45, Waukesha, WI

Built 1971 Load: 47.0 t ADT: 10,500

LRD SPRINGBROOK RD

Fair

Over: SPRING BROOK

1.4M N JCT STH 21, Winnebago, WI

Built 1994 Load: 47.0 t ADT: 275

CTH S

Fair

Over: BR BEAR CREEK

3.1M E JCT STH 76, Outagamie, WI

Built 1917 Load: 48.3 t ADT: 2,600

LRD OLD HWY 13

Fair

Over: CRANBERRY RIVER

0.4M S JCT STH 13, Bayfield, WI

Built 1999 Load: 48.6 t ADT: 30

CTH J RIVERVIEW

Fair

Over: BR DUCK CREEK

1.1M N JCT CTH HS, Brown, WI

Built 1967 Load: 48.6 t ADT: 2,000

LRD 7TH ST

Fair

Over: BEAVER CREEK

0.5M S JCT STH 54, Brown, WI

Built 1968 Load: 48.6 t ADT: 763

STH178 SB

Fair

Over: CHIPPEWA RIVER

1.0 M S CTH I, Chippewa, WI

Built 2000 Load: 48.6 t ADT: 6,250

LRD SEIER RD

Fair

Over: CANADIAN PACIFIC RAIL

1.1M N JCT STH 16, Columbia, WI

Built 2010 Load: 48.6 t ADT: 261

USH 151 SB

Fair

Over: CNW RR

4.0M S JCT STH 33 (N), Dodge, WI

Built 1963 Load: 48.6 t ADT: 10,000

LRD S CENTER ST

Fair

Over: BEAVER DAM RIVER

0.1M S JCT STH 33, Dodge, WI

Built 1988 Load: 48.6 t ADT: 6,076

CTH Y

Fair

Over: MILWAUKEE RIVER

0.3M S JCT STH 67, Fond du Lac, WI

Built 1992 Load: 48.6 t ADT: 233

CTH Y

Fair

Over: MILWAUKEE RIVER

0.5M W JCT USH 45, Fond du Lac, WI

Built 1992 Load: 48.6 t ADT: 239

CTH S

Fair

Over: SCOTCH CREEK

1.0M S JCT STH 29, Marathon, WI

Built 1928 Load: 48.6 t ADT: 570

LRD WEST GALENA ST

Fair

Over: C. P. RAILROAD

0.7M W JCT STH 57, Milwaukee, WI

Built 1999 Load: 48.6 t ADT: 371

IH 94 EB

Fair

Over: LEMONWEIR CREEK

2.3M E JCT USH 12 TO E, Monroe, WI

Built 1963 Load: 48.6 t ADT: 13,050

LRD SUPERIOR AVE

Fair

Over: OCONTO RIVER

0.3M W JCT CTH S, Oconto, WI

Built 1985 Load: 48.6 t ADT: 1,100

LRD GERMOND RD

Fair

Over: PELICAN RIVER

1.9M N JCT CTH G, Oneida, WI

Built 2007 Load: 48.6 t ADT: 166

LRD TIP RD

Fair

Over: DUCK CREEK

0.3M W JCT CTH E, Outagamie, WI

Built 1994 Load: 48.6 t ADT: 386

LRD WHEELER ROAD

Fair

Over: BR MUD CREEK

350 FT WEST OF WESTHILL B, Outagamie, WI

Built 1992 Load: 48.6 t ADT: 400

USH 10

Fair

Over: ST CROIX RIVER 01

MINNESOTA STATE LINE, Pierce, WI

Built 1990 Load: 48.6 t ADT: 16,800

IH 94 WB

Fair

Over: EAU GALLE RIVER

2.7M W JCT STH 128 TO N, St. Croix, WI

Built 1958 Load: 48.6 t ADT: 17,800

CTH EE

Fair

Over: ELK CREEK

ELK CR, Trempealeau, WI

Built 2003 Load: 48.6 t ADT: 233

CTH CW (MAPLETON R

Fair

Over: ASHIPPUN RIVER

0.1M W JCT STH 67, Waukesha, WI

Built 1963 Load: 48.6 t ADT: 1,700

CTH II

Fair

Over: BR WOLF RIVER

0.5M S JCT USH10, Waupaca, WI

Built 1996 Load: 48.6 t ADT: 1,266

CTH O

Fair

Over: FOUR MILE CREEK

2.1M S JCT CTH N, Marathon, WI

Built 1950 Load: 48.9 t ADT: 672

LRD S MAIN STREET

Fair

Over: BADGER MILL CREEK

0.6M S JCT STH 69, Dane, WI

Built 1939 Load: 50.2 t ADT: 10,500

STH 35

Fair

Over: BLACK RIVER

11.1M N JCT CTH M, Douglas, WI

Built 1992 Load: 50.2 t ADT: 1,200

LRD 270TH ST

Fair

Over: GILBERT CREEK

0.4M S JCT STH 29, Dunn, WI

Built 1944 Load: 50.2 t ADT: 53

STH 49-HURON ST

Fair

Over: FOX RIVER

0.2M N JCT STH 116, Green Lake, WI

Built 2004 Load: 50.2 t ADT: 9,200

CTH N

Fair

Over: DOUGLAS CREEK

0.5M WEST OF JCT CTY H, Jackson, WI

Built 1936 Load: 50.2 t ADT: 360

CTH Y

Fair

Over: DUCK CREEK

0.7M E JCT CTH D, Jefferson, WI

Built 1983 Load: 50.2 t ADT: 850

LRD FERNDALE RD

Fair

Over: PECATONICA RIVER

1.0M N JCT CTH C, Lafayette, WI

Built 1958 Load: 50.2 t ADT: 58

IH I 43 SB OFF RAM

Fair

Over: PINE CREEK

0.1M N JCT CTH C, Manitowoc, WI

Built 1978 Load: 50.2 t ADT: 450

LRD W GRANGE AVE

Fair

Over: CMSTPP RR

0.7M W JCT STH 38, Milwaukee, WI

Built 1976 Load: 50.2 t ADT: 9,900

LRD LOCUST ST

Fair

Over: BIKE TRAIL

0.9M W JCT STH 32, Milwaukee, WI

Built 1996 Load: 50.2 t ADT: 12,600

CTH PP

Fair

Over: E FK LEMONWEIR RIVER

0.5M S JCT STH 21, Monroe, WI

Built 1997 Load: 50.2 t ADT: 545

CTH K

Fair

Over: DALY CREEK

0.7M S JCT CTH A, Oconto, WI

Built 2002 Load: 50.2 t ADT: 320

LRD SKYLINE RD

Fair

Over: BR KNAPP CREEK

0.05M W JCT STH 171, Richland, WI

Built 1996 Load: 50.2 t ADT: 1

LRD SPRING VALLEY

Fair

Over: SPRING VALLEY CREEK

0.2M W JCT STH 23, Sauk, WI

Built 1977 Load: 50.2 t ADT: 131

STH 64

Fair

Over: BR WILLOW RIVER

3.6M E JCT STH 65 TO N, St. Croix, WI

Built 1941 Load: 50.2 t ADT: 8,200

CTH D

Fair

Over: BR OTTER CREEK

1.7M N JCT STH 82, Vernon, WI

Built 1967 Load: 50.2 t ADT: 420

LRD W 28TH AVE (DE

Fair

Over: MERRITTS CREEK

0.3M E JCT CTH I, Winnebago, WI

Built 1968 Load: 50.2 t ADT: 200

CTH C

Fair

Over: MOSQUITO CREEK

0.1M W JCT CTH S, Wood, WI

Built 1980 Load: 50.2 t ADT: 1,100

IH 39 SB

Fair

Over: BARABOO RIVER

1.9M S JCT STH 33 TO E, Columbia, WI

Built 1962 Load: 51.8 t ADT: 10,000

USH 151

Fair

Over: STARKWEATHER CREEK

AT STARKWEATHER CREEK, Dane, WI

Built 2007 Load: 51.8 t ADT: 37,100

USH 12

Fair

Over: BEAR GRASS CREEK

0.3M E JCT CTH AF, Eau Claire, WI

Built 1996 Load: 51.8 t ADT: 3,000

CTH D

Fair

Over: FRENCH CREEK

1.4M N JCT CTH H, Grant, WI

Built 1974 Load: 51.8 t ADT: 600

LRD GRASS CREEK LA

Fair

Over: GRASS CREEK

0.9M S JCT CTH F, Marathon, WI

Built 1958 Load: 51.8 t ADT: 163

LRD N EMERY AVE

Fair

Over: TROUT BROOK

0.2M N JCT USH 41, Marinette, WI

Built 1952 Load: 51.8 t ADT: 1,300

IH 794-LAKE FREEWA

Fair

Over: DOCK RR

2.4 MI E JCT IH 94, Milwaukee, WI

Built 1974 Load: 51.8 t ADT: 25,200

Showing 7,701-7,750 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.