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

USH 18/STH 35/STH

Good

Over: DRAINAGE CHANNEL

2 M E JCT USH 18, Crawford, WI

Built 2016 Load: 32.4 t ADT: 6,600

LRD LITTLE HANEY R

Good

Over: HALLS BRANCH

0.2M S JCT CTH S, Crawford, WI

Built 1988 Load: 32.4 t ADT: 94

LRD SOUTH VALLEY R

Good

Over: BLACK EARTH CREEK

0.1M S JCT USH 14, Dane, WI

Built 1972 Load: 32.4 t ADT: 117

IH 39/90/94

Good

Over: BR YAHARA RIVER

2.98 MI.S OF CTH V, Dane, WI

Built 1959 Load: 32.4 t ADT: 60,100

CTH BB

Good

Over: DOOR CREEK

3.0M W JCT CTH N, Dane, WI

Built 1964 Load: 32.4 t ADT: 7,100

USH 14

Good

Over: SWAN CREEK

2.6M E JCT USH 12 TO E, Dane, WI

Built 1969 Load: 32.4 t ADT: 22,200

USH 14

Good

Over: BLACK EARTH CREEK

0.3M E JCT CTH Y, Dane, WI

Built 1975 Load: 32.4 t ADT: 10,900

LRD RIDGE RD

Good

Over: KOSHKONONG CREEK

1.0M S JCT CTH BB, Dane, WI

Built 1985 Load: 32.4 t ADT: 294

LRD ARBORETUM DR

Good

Over: MURPHY CREEK

0.2M W JCT USH 151, Dane, WI

Built 1986 Load: 32.4 t ADT: 507

LRD 4TH ST

Good

Over: YAHARA RIVER

0.2M S JCT USH 51, Dane, WI

Built 1990 Load: 32.4 t ADT: 1,600

LRD 4TH ST

Good

Over: YAHARA RIVER

0.2M S JCT USH 51, Dane, WI

Built 1990 Load: 32.4 t ADT: 1,600

LRD COMMERCIAL AVE

Good

Over: STARKWEATHER CREEK

0.2M N JCT NAKOOSA TR, Dane, WI

Built 1992 Load: 32.4 t ADT: 13,600

LRD EDWARD STREET

Good

Over: BR BADGER MILL CREEK

0.3M W JCT CTH M, Dane, WI

Built 1991 Load: 32.4 t ADT: 562

CTH E

Good

Over: GERMAN VALLEY CREEK

3.2M N JCT CTH Z, Dane, WI

Built 1993 Load: 32.4 t ADT: 207

STH 92

Good

Over: WEST BR. SUGAR RIVER

0.1M E JCT CTH A TO E, Dane, WI

Built 1998 Load: 32.4 t ADT: 2,200

LRD FAIR OAKS AVE

Good

Over: STARKWEATHER CREEK

0.6M S JCT USH 151, Dane, WI

Built 1997 Load: 32.4 t ADT: 8,000

CTH MM / RIMROCK R

Good

Over: NINE SPRINGS CREEK

0.8M S JCT USH 14, Dane, WI

Built 1997 Load: 32.4 t ADT: 10,100

LRD OLIN AVE

Good

Over: WINGRA CREEK

0.8M E JCT USH 151, Dane, WI

Built 2001 Load: 32.4 t ADT: 8,550

LRD COPPS AVE

Good

Over: BR YAHARA RIVER

0.1M N JCT FEMRITE DR, Dane, WI

Built 1997 Load: 32.4 t ADT: 215

LRD HAMMOND RD

Good

Over: HANERVILLE CREEK

2.1M E JCT CTH N, Dane, WI

Built 1999 Load: 32.4 t ADT: 108

LRD LIEN ROAD

Good

Over: E BR STARKWEATHER CREEK

CITY OF MADISON, Dane, WI

Built 2000 Load: 32.4 t ADT: 9,100

USH 51

Good

Over: YAHARA RIVER

1.1M N JCT CTH N, Dane, WI

Built 2000 Load: 32.4 t ADT: 11,700

USH 12 EB

Good

Over: UNNAMED DITCH

3.0M S JCT CTH P, Dane, WI

Built 2003 Load: 32.4 t ADT: 18,600

LRD GREENWAY BLVD

Good

Over: PHEASANT BRANCH CREEK

0.3M W JCT DEMING, Dane, WI

Built 1994 Load: 32.4 t ADT: 5,800

LRD NESBIT RD

Good

Over: BADGER MILL CREEK

0.3M N JCT USH 18, Dane, WI

Built 2004 Load: 32.4 t ADT: 9,500

LRD LOW RD (DEAD E

Good

Over: BR BLACK EARTH CREEK

0.25M W JCT TWIN VALLEY R, Dane, WI

Built 2004 Load: 32.4 t ADT: 20

LRD EDGEWOOD AVE

Good

Over: BIKE PATH

AT BIKE PATH, Dane, WI

Built 2006 Load: 32.4 t ADT: 1,827

CTH M

Good

Over: DORN CREEK

0.6M S JCT CTH K, Dane, WI

Built 2006 Load: 32.4 t ADT: 20,500

LRD U.W. HEALTH CT

Good

Over: PHEASANT BRANCH CREEK

0.1 MI. WEST OF DEMING WA, Dane, WI

Built 2007 Load: 32.4 t ADT: 257

CTH OLD CTH PB

Good

Over: BR BADGER MILL CREEK

0.4M S JCT VERONA AVE, Dane, WI

Built 2018 Load: 32.4 t ADT: 6,200

CTH W

Good

Over: SAUNDERS CREEK

1.1 MILES N OF USH 51, Dane, WI

Built 2014 Load: 32.4 t ADT: 250

LRD MEISTER RD

Good

Over: BR BADGER MILL CREEK

0.9M N JCT USH 18, Dane, WI

Built 2014 Load: 32.4 t ADT: 1,648

STH 73

Good

Over: MUD CREEK

1.2 M N JCT CTH PQ, Dane, WI

Built 2015 Load: 32.4 t ADT: 2,300

LRD VERMONT CHURCH

Good

Over: VERMONT CREEK

AT VERMONT CREEK, Dane, WI

Built 2016 Load: 32.4 t ADT: 100

STH 78

Good

Over: VERMONT CREEK

1.7M N JCT CTH J TO E, Dane, WI

Built 2022 Load: 32.4 t ADT: 2,300

CTH A

Good

Over: STORY CREEK

0.446 MILES EAST OF CTH D, Dane, WI

Built 2016 Load: 32.4 t ADT: 570

LRD INAMA ROAD

Good

Over: ROXBURY CREEK

0.2 MILES NORTH JCT CTH Y, Dane, WI

Built 2019 Load: 32.4 t ADT: 400

LRD MCKENNA BOULEV

Good

Over: BADGER MILL CREEK

0.7 MI N JCT RAYMOND RD, Dane, WI

Built 2020 Load: 32.4 t ADT: 14,100

LRD CITY VIEW DRIV

Good

Over: BADGER MILL CREEK

100 FT N JCT LEVITAN LN, Dane, WI

Built 2021 Load: 32.4 t ADT: 1,000

LRD HYER RD

Good

Over: WAUNAKEE MARSH

0.5M E JCT CTH P, Dane, WI

Built 1978 Load: 32.4 t ADT: 88

LRD DIKE RD

Good

Over: E BR ROCK RIVER

0.4M W JCT CTH TW, Dodge, WI

Built 1979 Load: 32.4 t ADT: 188

LRD SOCK RD

Good

Over: BEAVER DAM RIVER

1.3M S JCT CTH G, Dodge, WI

Built 1980 Load: 32.4 t ADT: 117

STH 73

Good

Over: BEAVER CREEK

0.2 MI SOUTH OF CTH CD TO, Dodge, WI

Built 1985 Load: 32.4 t ADT: 2,400

STH 67

Good

Over: DAWSON CREEK

0.3 MI N CTH EE, Dodge, WI

Built 1999 Load: 32.4 t ADT: 1,700

CTH S

Good

Over: ROCK RIVER

1.2M W JCT CTH E, Dodge, WI

Built 1939 Load: 32.4 t ADT: 2,700

CTH H

Good

Over: KUMMEL CREEK

1.4M E JCT CTH Y, Dodge, WI

Built 1996 Load: 32.4 t ADT: 1,000

CTH G

Good

Over: BEAVER DAM LAKE

3.3M N JCT CTH CP, Dodge, WI

Built 1997 Load: 32.4 t ADT: 1,793

LRD WEST MILL STRE

Good

Over: BEAVER DAM RIVER

0.2M S JCT STH 33, Dodge, WI

Built 1998 Load: 32.4 t ADT: 3,700

CTH P

Good

Over: ASHIPPUN RIVER

1.3M N JCT CTH O, Dodge, WI

Built 1999 Load: 32.4 t ADT: 2,800

CTH P

Good

Over: ASHIPPUN RIVER

0.3M N JCT CTH O, Dodge, WI

Built 1998 Load: 32.4 t ADT: 2,800

Showing 8,801-8,850 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.