State profile · Near national median SD

Wisconsin bridge safety

Condition ratings, load ratings, and structural-deficiency data for every public highway bridge in Wisconsin — drawn straight from the FHWA National Bridge Inventory.

14,851
Public bridges
41.3%
Good condition
6.1%
Poor condition
6.1%
Structurally deficient

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 rated 0-4

Structurally Deficient

6.1%

911 bridges flagged for repair priority

-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 — Structurally deficient 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 on the structurally deficient leaderboard (lower share = better)

States are ranked by share of bridges flagged structurally deficient — the FHWA classification for any span where deck, superstructure, or substructure carries a condition rating of 4 or below. Lower percentages indicate stronger maintenance funding and inspection follow-through. States here sit immediately above and below Wisconsin on the same metric.

28

Mississippi

5.92% top marginal rate
Structure
Progressive
Burden @ $100K
$16,823

45

South Carolina

6.10% top marginal rate
Structure
Progressive
Burden @ $100K
$5,396
Selected

55

Wisconsin

6.13% top marginal rate
Structure
Progressive
Burden @ $100K
$14,851

37

North Carolina

6.16% top marginal rate
Structure
Progressive
Burden @ $100K
$18,901

15

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 composite NBI rating. Each is inspected at least every 24 months.

All Bridges in Wisconsin

LRD PUETZ ROAD

Fair

Over: BR OAK CREEK

0.5M E JCT IH 94, Milwaukee, WI

Built 1977 Load: 32.4 t ADT: 11,400

LRD S 6TH ST

Fair

Over: BR KINNICKINNIC RIVER

2.2M N JCT CTH ZZ, Milwaukee, WI

Built 1953 Load: 32.4 t ADT: 6,700

LRD S 13TH ST

Fair

Over: BR KINNICKINNIC RIVER

0.1M N JCT IH 43/94, Milwaukee, WI

Built 1950 Load: 32.4 t ADT: 9,800

LRD S 20TH ST

Fair

Over: KINNICKINNIC RIVER

2.1M S JCT STH 59, Milwaukee, WI

Built 1938 Load: 32.4 t ADT: 6,100

LRD S 20TH ST

Fair

Over: BR KINNICKINNIC RIVER

2.8M N JCT CTH ZZ, Milwaukee, WI

Built 1958 Load: 32.4 t ADT: 6,600

LRD S 35TH ST

Fair

Over: UP RR

0.1M N JCT STH 24, Milwaukee, WI

Built 1960 Load: 32.4 t ADT: 13,400

LRD S 68TH ST

Fair

Over: HONEY CREEK

0.5M N JCT STH 24, Milwaukee, WI

Built 1958 Load: 32.4 t ADT: 4,400

LRD W MORGAN AVE

Fair

Over: BR KINNICKINNIC RIVER

0.1M W JCT STH 241, Milwaukee, WI

Built 1954 Load: 32.4 t ADT: 10,500

LRD W PLAINFIELD A

Fair

Over: WILDCAT CREEK

0.1MI NW JCT CTH "T", Milwaukee, WI

Built 1988 Load: 32.4 t ADT: 107

STH 71

Fair

Over: SPRING CREEK

AT CTH U INTERSECTION (MA, Monroe, WI

Built 2011 Load: 32.4 t ADT: 2,100

IH 94 WB

Fair

Over: UP RR

1.7M W JCT CTH EW, Monroe, WI

Built 1968 Load: 32.4 t ADT: 11,350

IH 90

Fair

Over: LEMONWEIR CREEK

11.4M E JCT STH 16 TO E, Monroe, WI

Built 1968 Load: 32.4 t ADT: 17,900

USH 12-SUPERIOR ST

Fair

Over: LEMONWEIR CREEK

0.5M E JCT CTH C (D), Monroe, WI

Built 1970 Load: 32.4 t ADT: 12,900

USH 12

Fair

Over: DEER CREEK

0.3M E JCT CTH E, Monroe, WI

Built 1970 Load: 32.4 t ADT: 12,900

CTH X

Fair

Over: BR LITTLE LA CROSSE RI

2.3M S JCT STH 27, Monroe, WI

Built 1931 Load: 32.4 t ADT: 294

LRD OMNIBUS RD

Fair

Over: BRUSH CREEK

0.2M S JCT STH 33, Monroe, WI

Built 1932 Load: 32.4 t ADT: 94

LRD HERTZ AVE

Fair

Over: COUNCIL CREEK

0.1M W JCT STH 131, Monroe, WI

Built 1950 Load: 32.4 t ADT: 23

CTH T

Fair

Over: MCCASLIN BROOK

0.5M W JCT STH 32, Oconto, WI

Built 1963 Load: 32.4 t ADT: 1,400

CTH B

Fair

Over: MCDONALD CREEK

0.1M S JCT CTH Z TO W, Oconto, WI

Built 1987 Load: 32.4 t ADT: 740

CTH Z

Fair

Over: MCDONALD CREEK

0.1M W JCT CTH B TO S, Oconto, WI

Built 1987 Load: 32.4 t ADT: 490

CTH J

Fair

Over: OCONTO RIVER

3.0M S JCT STH 22, Oconto, WI

Built 1997 Load: 32.4 t ADT: 473

USH 51

Fair

Over: LAKE KATHERINE

0.4M N JCT CTH D, Oneida, WI

Built 1976 Load: 32.4 t ADT: 5,400

LRD HIGH ST

Fair

Over: SOO LINE

0.1M W JCT STH 17, Oneida, WI

Built 1979 Load: 32.4 t ADT: 2,025

LRD HAT RAPIDS RD

Fair

Over: WISCONSIN RIVER 45

1.6M W JCT STH 17, Oneida, WI

Built 1983 Load: 32.4 t ADT: 459

LRD HAYMEADOW RD (

Fair

Over: N BR PELICAN RIVER

0.9M E JCT USH 8, Oneida, WI

Built 1987 Load: 32.4 t ADT: 109

LRD DAVENPORT ST

Fair

Over: WISCONSIN RIVER 47

1.2M E JCT STH 47, Oneida, WI

Built 1995 Load: 32.4 t ADT: 12,554

CTH L

Fair

Over: LAKE NOKOMIS

1.4M N JCT USH 8 TO W, Oneida, WI

Built 1932 Load: 32.4 t ADT: 3,640

IH USH 10-IH 41

Fair

Over: MUD CREEK

0.3M N JCT STH 125 TO E, Outagamie, WI

Built 1959 Load: 32.4 t ADT: 77,100

CTH D

Fair

Over: BEAR CREEK

0.4M N JCT STH 76, Outagamie, WI

Built 1964 Load: 32.4 t ADT: 635

CTH WW

Fair

Over: BEAR CREEK

0.6M W JCT STH 76, Outagamie, WI

Built 1975 Load: 32.4 t ADT: 266

STH 96

Fair

Over: RAT RIVER

2.3M E JCT CTH M, Outagamie, WI

Built 1980 Load: 32.4 t ADT: 5,800

STH 187

Fair

Over: SHIOC RIVER

1.1M N JCT STH 54, Outagamie, WI

Built 1981 Load: 32.4 t ADT: 1,400

CTH F

Fair

Over: WOLF RIVER

0.3M W JCT STH 187, Outagamie, WI

Built 1980 Load: 32.4 t ADT: 697

CTH BB

Fair

Over: W BR MUD CREEK

0.2M W JCT USH 41, Outagamie, WI

Built 1979 Load: 32.4 t ADT: 19,089

CTH EE

Fair

Over: DUCK CREEK

0.3M W JCT CTH E, Outagamie, WI

Built 1983 Load: 32.4 t ADT: 1,435

CTH G

Fair

Over: BLACK CREEK

0.7M W JCT STH 55, Outagamie, WI

Built 1987 Load: 32.4 t ADT: 1,582

LRD RANCH RD

Fair

Over: BR DUCK CREEK

1.3M E JCT CTH H, Outagamie, WI

Built 1983 Load: 32.4 t ADT: 699

CTH JJ

Fair

Over: BR APPLE CREEK

0.2M E JCT STH 55, Outagamie, WI

Built 1987 Load: 32.4 t ADT: 2,255

LRD GLORY LANE

Fair

Over: FRENCH ROAD DITCH

JUST W OF FRENCH RD., Outagamie, WI

Built 2001 Load: 32.4 t ADT: 1

LRD FISH CREEK RD

Fair

Over: DUCK CREEK OVERFLOW

0.1M W JCT CTH E, Outagamie, WI

Built 1992 Load: 32.4 t ADT: 168

IH USH 10-IH 41

Fair

Over: N BR MUD CREEK

0.5 M N JCT STH 125, Outagamie, WI

Built 1992 Load: 32.4 t ADT: 77,100

CTH CE

Fair

Over: KANKAPOT CREEK

0.4M E JCT STH 55, Outagamie, WI

Built 1996 Load: 32.4 t ADT: 8,300

LRD PROVIDENCE RD

Fair

Over: APPLE CREEK

0.3M N JCT USH 41, Outagamie, WI

Built 1997 Load: 32.4 t ADT: 2,286

LRD SPRINGFIELD DR

Fair

Over: TRIB. OF GARNERS CREEK

0.1M E OF STONEY BROOK, Outagamie, WI

Built 2000 Load: 32.4 t ADT: 1

LRD SANCTUARY WAY

Fair

Over: TRIBUTARY OF MUD CREEK

300 FEET SOUTH OF CAPITOL, Outagamie, WI

Built 1997 Load: 32.4 t ADT: 400

CTH M NASH ST

Fair

Over: BLACK OTTER CREEK

0.1M S JCT USH 15, Outagamie, WI

Built 1892 Load: 32.4 t ADT: 5,151

CTH E BALLARD RD

Fair

Over: DRAINAGE WAY

0.1M S JCT CTH OO, Outagamie, WI

Built 1963 Load: 32.4 t ADT: 9,595

LRD OLD SEYMOUR RD

Fair

Over: BR DUCK CREEK

2.3M E JCT CTH H, Outagamie, WI

Built 1986 Load: 32.4 t ADT: 205

STH 32-GRAND AVE

Fair

Over: SAUK CREEK

0.5M N JCT STH 33, Ozaukee, WI

Built 1915 Load: 32.4 t ADT: 10,200

IH 43-STH 32

Fair

Over: SUCKER CREEK

4.6M N JCT STH 32 TO S, Ozaukee, WI

Built 1974 Load: 32.4 t ADT: 26,300

Showing 5,601-5,650 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 Editorial.

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). A "structurally deficient" rating is a repair-priority signal, not a closure or unsafe-to-cross designation. Consult a qualified civil engineer before making decisions based on this data.