Brown County, WI

478 public highway bridges

Brown County Bridge Snapshot

Brown County, Wisconsin contains 478 public highway bridges in the FHWA National Bridge Inventory. Roughly 31% are rated “Good,” 26.6% “Fair,” 3.8% “Poor,” and 3.8% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.

Inspections in WI are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

478

Total Bridges

31%

Good

3.8%

Poor

3.8%

Structurally Deficient

Condition Distribution

Good

31% (148)

Fair

26.6% (127)

Poor

3.8% (18)

SD

3.8% (18)

All Bridges (478)

Sort:

IH 43 NB

Over: LRD GLENMORE RD

1.2M E JCT CTH MM, Brown, WI

Built 1981 ADT: 800

IH 43 SB

Over: LRD GLENMORE RD

1.2M E JCT CTH MM, Brown, WI

Built 1981 ADT: 800

USH 141

Over: IH 43

7.3M N JCT STH 96 (S), Brown, WI

Built 1980 ADT: 26,300

STH 172 WB

Over: IH 43

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

Built 1980 ADT: 29,500

IH RAMP STH 172 EB

Over: IH 43

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

Built 1981 ADT: 29,500

LRD ALLOUEZ AVE

Over: IH 43

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

Built 1981 ADT: 38,800

USH 141-STH 29

Over: IH 43

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

Built 1980 ADT: 42,800

CNW RR

Over: IH 43

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

Built 1981 ADT: 45,500

CTH JJ

Over: IH 43

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

Built 1981 ADT: 38,800

CNW RR

Over: CTH JJ

0.1M E JCT STH 29, Brown, WI

Built 1981 ADT: 11,100

IH 41 NB

Over: LRD LITTLE RAPIDS RD

AT IH 41, Brown, WI

Built 2000 ADT: 100

LRD GREENBRIER RD

Over: IH 43

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

Built 1981 ADT: 36,700

IH 43 SB

Over: LRD E MASON ST

1.8M E JCT STH 29, Brown, WI

Built 1981 ADT: 22,400

IH 43 NB

Over: LRD E MASON ST

1.8M E JCT STH 29, Brown, WI

Built 1981 ADT: 22,400

IH 43 SB

Over: LRD BAIRD CREEK RD

2.2M E JCT STH 54, Brown, WI

Built 1979 ADT: 400

IH 43 NB

Over: LRD BAIRD CREEK RD

2.2M E JCT STH 54, Brown, WI

Built 1979 ADT: 400

LRD HUMBOLDT RD

Over: IH 43

2.0M N JCT CTH V, Brown, WI

Built 1978 ADT: 34,100

IH 43 SB

Over: LRD UNIVERSITY AVE

1.0M E JCT STH 54, Brown, WI

Built 1979 ADT: 4,000

IH 43 NB

Over: LRD UNIVERSITY AVE

1.0M E JCT STH 54, Brown, WI

Built 1979 ADT: 4,000

IH RAMP IH 43 NB-S

Over: LRD UNIVERSITY AVE

0.6M E JCT STH 54, Brown, WI

Built 1979 ADT: 4,000

IH RAMP IH 43 SB-S

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

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

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

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

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

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

Over: LRD UNIVERSITY AVE

0.2M S JCT CTH A, Brown, WI

Built 1979 ADT: 8,500

STH 54 EB-STH 57 N

Over: LRD UNIVERSITY AVE

0.9M E JCT STH 54, Brown, WI

Built 1979 ADT: 8,500

IH 43 SB

Over: LRD DANZ AVE

0.5M N JCT STH 54, Brown, WI

Built 1979 ADT: 1,900

IH 43 NB

Over: LRD DANZ AVE

0.5M N JCT STH 54, Brown, WI

Built 1979 ADT: 1,900

IH 43 SB

Over: LRD IRWIN AVE

0.5M N JCT STH 54, Brown, WI

Built 1978 ADT: 2,900

IH 43 NB

Over: LRD IRWIN AVE

0.5M N JCT STH 54, Brown, WI

Built 1978 ADT: 2,900

IH RAMP IH 43 NB-W

Over: LRD IRWIN AVE

0.5M N JCT STH 54, Brown, WI

Built 1978 ADT: 2,900

IH 43

Over: LRD WEBSTER AVE

0.5M N JCT STH 54, Brown, WI

Built 1978 ADT: 13,900

LRD ATKINSON DRIVE

Over: IH 43

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

Built 1978 ADT: 40,000

LRD MILITARY AVE

Over: IH 43

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

Built 1978 ADT: 40,000

STH 29 WB

Over: STH 32

4.3M S JCT STH 160, Brown, WI

Built 1988 ADT: 7,900

STH 29 EB

Over: STH 32

4.4M S JCT STH 160, Brown, WI

Built 1988 ADT: 7,900

LRD COOPERSTOWN RD

Over: IH 43

4.9M N JCT STH 147, Brown, WI

Built 1979 ADT: 22,400

STH 96

Over: IH 43

6.2M N JCT STH 147, Brown, WI

Built 1980 ADT: 22,600

IH 43 SB

Over: LRD TOWN HALL RD

1.1M E JCT CTH NN, Brown, WI

Built 1980 ADT: 200

IH 43 NB

Over: LRD TOWN HALL RD

1.1M E JCT CTH NN, Brown, WI

Built 1980 ADT: 200

LRD LANGES CORNER

Over: IH 43

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

Built 1980 ADT: 22,400

IH 43 SB

Over: CTH NN

2.7M N JCT CTH X, Brown, WI

Built 1981 ADT: 930

IH 43 NB

Over: CTH NN

2.0M N JCT CTH X, Brown, WI

Built 1980 ADT: 930

IH 43 SB

Over: LRD PINE GROVE RD

0.4M W JCT CTH NN, Brown, WI

Built 1980 ADT: 200

IH 43 NB

Over: LRD PINE GROVE RD

0.4M W JCT CTH NN, Brown, WI

Built 1980 ADT: 200

IH 43 SB

Over: LRD SHADOW LANE

0.5M E JCT CTH MM, Brown, WI

Built 1980 ADT: 150

IH 43 NB

Over: LRD SHADOW LANE

0.5M E JCT CTH MM, Brown, WI

Built 1980 ADT: 150

LRD NORTH AVE

Over: IH 43

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

Built 1980 ADT: 22,400

Read our methodology — how this data is sourced, computed, and verified.

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Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial

Reviewed byPlainbridges Editorial, Plain Bridges Editorial Team · June 5, 2026