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 172 WB

Unknown

Over: IH 43

2.8M N JCT USH 141 TO N, Brown, WI

Built 1980 ADT: 29,500

IH RAMP STH 172 EB

Unknown

Over: IH 43

3.1M N JCT USH 141 TO N, Brown, WI

Built 1981 ADT: 29,500

LRD ALLOUEZ AVE

Unknown

Over: IH 43

3.3M N JCT USH 141 TO N, Brown, WI

Built 1981 ADT: 38,800

USH 141-STH 29

Unknown

Over: IH 43

3.6M N JCT USH 141 TO N, Brown, WI

Built 1980 ADT: 42,800

CNW RR

Unknown

Over: IH 43

3.6M N JCT USH 141 TO N, Brown, WI

Built 1981 ADT: 45,500

CTH JJ

Unknown

Over: IH 43

4.0M N JCT USH 141 TO N, Brown, WI

Built 1981 ADT: 38,800

CNW RR

Unknown

Over: CTH JJ

0.1M E JCT STH 29, Brown, WI

Built 1981 ADT: 11,100

IH 41 NB

Unknown

Over: LRD LITTLE RAPIDS RD

AT IH 41, Brown, WI

Built 2000 ADT: 100

LRD GREENBRIER RD

Unknown

Over: IH 43

4.5M N JCT USH 141 TO N, Brown, WI

Built 1981 ADT: 36,700

IH 43 SB

Unknown

Over: LRD E MASON ST

1.8M E JCT STH 29, Brown, WI

Built 1981 ADT: 22,400

IH 43 NB

Unknown

Over: LRD E MASON ST

1.8M E JCT STH 29, Brown, WI

Built 1981 ADT: 22,400

IH 43 SB

Unknown

Over: LRD BAIRD CREEK RD

2.2M E JCT STH 54, Brown, WI

Built 1979 ADT: 400

IH 43 NB

Unknown

Over: LRD BAIRD CREEK RD

2.2M E JCT STH 54, Brown, WI

Built 1979 ADT: 400

LRD HUMBOLDT RD

Unknown

Over: IH 43

2.0M N JCT CTH V, Brown, WI

Built 1978 ADT: 34,100

IH 43 SB

Unknown

Over: LRD UNIVERSITY AVE

1.0M E JCT STH 54, Brown, WI

Built 1979 ADT: 4,000

IH 43 NB

Unknown

Over: LRD UNIVERSITY AVE

1.0M E JCT STH 54, Brown, WI

Built 1979 ADT: 4,000

IH RAMP IH 43 NB-S

Unknown

Over: LRD UNIVERSITY AVE

0.6M E JCT STH 54, Brown, WI

Built 1979 ADT: 4,000

IH RAMP IH 43 SB-S

Unknown

Over: STH 54 WB-STH 57 SB

5.7M W JCT STH 57 TO N, Brown, WI

Built 1979 ADT: 20,900

IH 43 SB

Unknown

Over: STH 54 EB-STH 57 NB

4.0M E JCT STH 29 TO E, Brown, WI

Built 1979 ADT: 15,000

IH 43 NB

Unknown

Over: STH 54 EB-STH 57 NB

4.1M E JCT STH 29 TO E, Brown, WI

Built 1979 ADT: 15,000

IH RAMP IH 43 NB-S

Unknown

Over: STH 54 EB-STH 57 NB

4.7M E JCT STH 29 TO E, Brown, WI

Built 1979 ADT: 18,900

IH 43 SB

Unknown

Over: STH 54 WB-STH 57 SB

5.0M W JCT STH 57 TO N, Brown, WI

Built 1979 ADT: 20,900

IH 43 NB

Unknown

Over: STH 54 WB-STH 57 SB

4.9M W JCT STH 57 TO N, Brown, WI

Built 1979 ADT: 20,900

STH 54 WB-STH 57 S

Unknown

Over: LRD UNIVERSITY AVE

0.2M S JCT CTH A, Brown, WI

Built 1979 ADT: 8,500

STH 54 EB-STH 57 N

Unknown

Over: LRD UNIVERSITY AVE

0.9M E JCT STH 54, Brown, WI

Built 1979 ADT: 8,500

IH 43 SB

Unknown

Over: LRD DANZ AVE

0.5M N JCT STH 54, Brown, WI

Built 1979 ADT: 1,900

IH 43 NB

Unknown

Over: LRD DANZ AVE

0.5M N JCT STH 54, Brown, WI

Built 1979 ADT: 1,900

IH 43 SB

Unknown

Over: LRD IRWIN AVE

0.5M N JCT STH 54, Brown, WI

Built 1978 ADT: 2,900

IH 43 NB

Unknown

Over: LRD IRWIN AVE

0.5M N JCT STH 54, Brown, WI

Built 1978 ADT: 2,900

IH RAMP IH 43 NB-W

Unknown

Over: LRD IRWIN AVE

0.5M N JCT STH 54, Brown, WI

Built 1978 ADT: 2,900

IH 43

Unknown

Over: LRD WEBSTER AVE

0.5M N JCT STH 54, Brown, WI

Built 1978 ADT: 13,900

LRD ATKINSON DRIVE

Unknown

Over: IH 43

4.1M N JCT STH 54 TO W, Brown, WI

Built 1978 ADT: 40,000

LRD MILITARY AVE

Unknown

Over: IH 43

5.3M N JCT STH 54 (N), Brown, WI

Built 1978 ADT: 40,000

STH 29 WB

Unknown

Over: STH 32

4.3M S JCT STH 160, Brown, WI

Built 1988 ADT: 7,900

STH 29 EB

Unknown

Over: STH 32

4.4M S JCT STH 160, Brown, WI

Built 1988 ADT: 7,900

LRD COOPERSTOWN RD

Unknown

Over: IH 43

4.9M N JCT STH 147, Brown, WI

Built 1979 ADT: 22,400

STH 96

Unknown

Over: IH 43

6.2M N JCT STH 147, Brown, WI

Built 1980 ADT: 22,600

IH 43 SB

Unknown

Over: LRD TOWN HALL RD

1.1M E JCT CTH NN, Brown, WI

Built 1980 ADT: 200

IH 43 NB

Unknown

Over: LRD TOWN HALL RD

1.1M E JCT CTH NN, Brown, WI

Built 1980 ADT: 200

LRD LANGES CORNER

Unknown

Over: IH 43

3.3M N JCT STH 96 TO E, Brown, WI

Built 1980 ADT: 22,400

IH 43 SB

Unknown

Over: CTH NN

2.7M N JCT CTH X, Brown, WI

Built 1981 ADT: 930

IH 43 NB

Unknown

Over: CTH NN

2.0M N JCT CTH X, Brown, WI

Built 1980 ADT: 930

IH 43 SB

Unknown

Over: LRD PINE GROVE RD

0.4M W JCT CTH NN, Brown, WI

Built 1980 ADT: 200

IH 43 NB

Unknown

Over: LRD PINE GROVE RD

0.4M W JCT CTH NN, Brown, WI

Built 1980 ADT: 200

IH 43 SB

Unknown

Over: LRD SHADOW LANE

0.5M E JCT CTH MM, Brown, WI

Built 1980 ADT: 150

IH 43 NB

Unknown

Over: LRD SHADOW LANE

0.5M E JCT CTH MM, Brown, WI

Built 1980 ADT: 150

LRD NORTH AVE

Unknown

Over: IH 43

1.0M N JCT STH 96 TO E, Brown, WI

Built 1980 ADT: 22,400

LRD BROWN RD

Unknown

Over: USH 141 - USH 41

8.8M N JCT USH 141 TO S, Brown, WI

Built 2000 ADT: 30,800

LRD NORFIELD ROAD

Unknown

Over: USH 41 - USH 141

7.8 N JCT USH 141 TO S, Brown, WI

Built 2000 ADT: 36,100

STH 57 SB

Unknown

Over: STH 54

2.8M W JCT CTH T, Brown, WI

Built 2000 ADT: 8,500

Showing 101-150 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.