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 13

Fair

Over: DILL CREEK

2.6M N JCT CTH P, Marathon, WI

Built 1989 Load: 38.9 t ADT: 8,100

CTH A

Fair

Over: W FK LITTLE RIB RIVER

0.5M E JCT STH 107, Marathon, WI

Built 1985 Load: 38.9 t ADT: 1,010

LRD STEWART AVE

Fair

Over: LITTLE RIB RIVER

2.1M E JCT STH 52, Marathon, WI

Built 1987 Load: 38.9 t ADT: 10,652

LRD HANSEN RD

Fair

Over: EAU CLAIRE RIVER

0.4M E JCT CTH Y, Marathon, WI

Built 1989 Load: 38.9 t ADT: 55

STH 49

Fair

Over: SPRANGER CREEK

2.2M N JCT STH 153, Marathon, WI

Built 1987 Load: 38.9 t ADT: 2,400

CTH S

Fair

Over: BR FREEMAN CREEK

0.2M N JCT STH 153, Marathon, WI

Built 1993 Load: 38.9 t ADT: 286

CTH O

Fair

Over: BIG EAU PLINE RESERVOIR

1.3M N JCT CTH C, Marathon, WI

Built 1999 Load: 38.9 t ADT: 949

CTH N

Fair

Over: RANDALL CREEK

2.7M W JCT CTH E, Marathon, WI

Built 2000 Load: 38.9 t ADT: 1,120

LRD STEWART AVE

Fair

Over: TRIB TO RIB RIVER

0.4M W JCT STH 52, Marathon, WI

Built 2000 Load: 38.9 t ADT: 10,347

CTH B

Fair

Over: LITTLE PESHTIGO RIVER

1.3M W JCT USH 141, Marinette, WI

Built 1984 Load: 38.9 t ADT: 2,211

CTH X

Fair

Over: MIDDLE INLET CREEK

3.1M E JCT USH 141, Marinette, WI

Built 1986 Load: 38.9 t ADT: 800

LRD RADKE LANE (DE

Fair

Over: BUNDY CREEK

0.5M W JCT USH 41, Marinette, WI

Built 1993 Load: 38.9 t ADT: 75

STH 22

Fair

Over: UNION PACIFIC RR CO

AT UP RR, Marquette, WI

Built 2002 Load: 38.9 t ADT: 2,000

CTH Y W. LAYTON

Fair

Over: ROOT RIVER

0.4M E JCT STH 100, Milwaukee, WI

Built 2000 Load: 38.9 t ADT: 12,100

CTH BB W RAWSON A

Fair

Over: BR ROOT RIVER

1.3M E JCT CTH OO, Milwaukee, WI

Built 1959 Load: 38.9 t ADT: 4,300

STH 24-FOREST HOME

Fair

Over: HONEY CREEK

1.2 MI E JCT IH 894, Milwaukee, WI

Built 1960 Load: 38.9 t ADT: 13,500

IH 94 WB-IH 43 NB

Fair

Over: MENOMONEE CANAL

5.5M N JCT IH 894 TO W, Milwaukee, WI

Built 1968 Load: 38.9 t ADT: 78,000

LRD MENOMONEE RIVE

Fair

Over: GRANTOSA CREEK

0.1M E JCT STH 100, Milwaukee, WI

Built 1968 Load: 38.9 t ADT: 3,580

LRD E NORTH AVE

Fair

Over: OAK LEAF BIKE TRAIL (ABA

0.1M W JCT STH 32, Milwaukee, WI

Built 1925 Load: 38.9 t ADT: 17,300

LRD N OAKLAND AVE

Fair

Over: OAK LEAF BIKE TRAIL

0.1 M W JCT STH 32, Milwaukee, WI

Built 1903 Load: 38.9 t ADT: 9,800

LRD 51ST ST

Fair

Over: SOUTH BRANCH CR

0.7 MI S. JCT STH 100, Milwaukee, WI

Built 2006 Load: 38.9 t ADT: 2,300

LRD E LOCUST ST

Fair

Over: MILWAUKEE RIVER

1.0M W JCT STH 32, Milwaukee, WI

Built 1982 Load: 38.9 t ADT: 20,800

LRD W BECHER ST

Fair

Over: KINNICKINNIC RIVER

0.2M E JCT STH 38, Milwaukee, WI

Built 1966 Load: 38.9 t ADT: 11,100

STH 71

Fair

Over: FARMERS VALLEY CREEK

2.3M E JCT STH 16 TO E, Monroe, WI

Built 1991 Load: 38.9 t ADT: 1,600

STH 71

Fair

Over: FARMERS VALLEY CREEK

1.8M E JCT CTH AA, Monroe, WI

Built 1991 Load: 38.9 t ADT: 1,600

CTH CM

Fair

Over: LEMONWEIR CREEK

0.8M W JCT STH 16, Monroe, WI

Built 2000 Load: 38.9 t ADT: 784

LRD FORBES RD

Fair

Over: LEMONWEIR CREEK

0.3M S JCT CTH E, Monroe, WI

Built 2003 Load: 38.9 t ADT: 60

LRD BUCKLEY AVE

Fair

Over: BR E FK LEMONWEIR RIVER

0.6M E JCT CTH N, Monroe, WI

Built 1964 Load: 38.9 t ADT: 23

CTH Z

Fair

Over: BR BILLINGS CREEK

3.8M S JCT CTH P, Monroe, WI

Built 1984 Load: 38.9 t ADT: 54

STH 32-STH 64

Fair

Over: N BR OCONTO RIVER

1.7M N JCT CTH W TO E, Oconto, WI

Built 1985 Load: 38.9 t ADT: 4,300

CTH J

Fair

Over: PICKERAL DOG LAKES

3.6M S JCT STH 70, Oneida, WI

Built 1937 Load: 38.9 t ADT: 1,477

CTH N

Fair

Over: APPLE CREEK

0.9M N JCT CTH JJ, Outagamie, WI

Built 1978 Load: 38.9 t ADT: 5,800

CTH J

Fair

Over: DUCK CREEK

0.2M W JCT CTH E, Outagamie, WI

Built 1979 Load: 38.9 t ADT: 615

LRD RIVERSIDE ROAD

Fair

Over: N BR MILWAUKEE RIVER

1.6M N JCT CTH A, Ozaukee, WI

Built 1986 Load: 38.9 t ADT: 115

LRD CEDAR CREEK RD

Fair

Over: CEDAR CREEK

0.7M W JCT CTH I, Ozaukee, WI

Built 2004 Load: 38.9 t ADT: 1,400

LRD MAIN ST

Fair

Over: S FK KINNICKINNIC RIVER

1.6M E JCT CTH FF TO W, Pierce, WI

Built 1982 Load: 38.9 t ADT: 21,115

CTH O

Fair

Over: TRIMBELLE RIVER

2.7M S JCT USH 10, Pierce, WI

Built 1994 Load: 38.9 t ADT: 370

CTH JJ

Fair

Over: BEAVER CREEK

2.4M N JCT CTH J, Polk, WI

Built 1993 Load: 38.9 t ADT: 499

LRD GRIFFIN ST

Fair

Over: APPLE RIVER

0.5M E JCT STH 46, Polk, WI

Built 1976 Load: 38.9 t ADT: 575

LRD WALKUSH RD (DE

Fair

Over: WISCONSIN R BACKWATER

1.8M W JCT USH 51, Portage, WI

Built 1988 Load: 38.9 t ADT: 51

STH 66-CLARK ST

Fair

Over: WISCONSIN RIVER 23

0.4M E JCT CTH P, Portage, WI

Built 2000 Load: 38.9 t ADT: 7,821

USH 10 EB

Fair

Over: WETLANDS

0.75M W JCT IH39, Portage, WI

Built 2009 Load: 38.9 t ADT: 3,000

USH 10 WB

Fair

Over: WETLANDS

0.75M W JCT IH39, Portage, WI

Built 2009 Load: 38.9 t ADT: 3,000

LRD PATCH STREET

Fair

Over: PLOVER RIVER

2.6M E JCT USH 51B, Portage, WI

Built 1981 Load: 38.9 t ADT: 1,192

LRD MEIER RD

Fair

Over: S FK SPIRIT RIVER

0.1M S JCT CTH YY, Price, WI

Built 1996 Load: 38.9 t ADT: 84

CTH K

Fair

Over: LITTLE ELK RIVER

0.2M S JCT CTH D, Price, WI

Built 1919 Load: 38.9 t ADT: 307

LRD FIVE MILE RD

Fair

Over: ROOT RIVER

0.3M E JCT STH 38, Racine, WI

Built 2000 Load: 38.9 t ADT: 1,500

STH 38

Fair

Over: CNW RR

0.2 MI W JCT CTH G, Racine, WI

Built 1987 Load: 38.9 t ADT: 8,500

CTH K

Fair

Over: W BR ROOT RIVER CANAL

1.2M E JCT CTH U, Racine, WI

Built 1987 Load: 38.9 t ADT: 2,700

CTH C

Fair

Over: W. BR. ROOT RIVER CANAL

1.9M E JCT USH 45, Racine, WI

Built 1994 Load: 38.9 t ADT: 5,500

Showing 7,001-7,050 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.