Dunn County, WI

252 public highway bridges

Dunn County Bridge Snapshot

Dunn County, Wisconsin contains 252 public highway bridges in the FHWA National Bridge Inventory. Roughly 39.3% are rated “Good,” 38.9% “Fair,” 8.3% “Poor,” and 8.3% 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.

252

Total Bridges

39.3%

Good

8.3%

Poor

8.3%

Structurally Deficient

Condition Distribution

Good

39.3% (99)

Fair

38.9% (98)

Poor

8.3% (21)

SD

8.3% (21)

All Bridges (252)

Sort:

CTH D

Over: BR KNIGHTS CREEK

0.3M N JCT STH 72, Dunn, WI

Built 1975 Load: 21.1 t ADT: 162

CTH N

Over: S FK HAY RIVER

2.8M W JCT CTH F, Dunn, WI

Built 1955 Load: 22.7 t ADT: 192

STH 25

Over: CNW RR

0.8M N JCT IH 94 TO E, Dunn, WI

Built 1959 Load: 22.7 t ADT: 7,100

LRD 90TH AVE

Over: COON CREEK

1.71 MILES EAST OF CTH H, Dunn, WI

Built 1919 Load: 22.7 t ADT: 78

CTH M

Over: BEAVER CREEK

0.1M N JCT STH 64, Dunn, WI

Built 1944 Load: 22.7 t ADT: 700

LRD 1170TH AVE (DE

Over: TROUT CREEK

0.4M W JCT CTH M, Dunn, WI

Built 1929 Load: 22.7 t ADT: 25

STH 29-HUDSON RD

Over: RED CEDAR RIVER

0.1M E JCT CTH P, Dunn, WI

Built 1953 Load: 24.3 t ADT: 5,300

CTH Q

Over: TIFFANY CREEK

0.1M N JCT STH 170, Dunn, WI

Built 1960 Load: 24.3 t ADT: 456

CTH V

Over: LOWER PINE CREEK

3.4M E JCT STH 25, Dunn, WI

Built 1966 Load: 24.3 t ADT: 263

CTH N

Over: HAY RIVER

0.3M E JCT CTH F, Dunn, WI

Built 1987 Load: 24.3 t ADT: 130

LRD 150TH AVE

Over: ROCK CREEK

0.2M W JCT STH 85, Dunn, WI

Built 1981 Load: 24.3 t ADT: 192

CTH K

Over: IRVING CREEK

1.2M N JCT CTH D, Dunn, WI

Built 1983 Load: 24.3 t ADT: 263

LRD 220TH ST

Over: KNIGHTS CREEK

0.8M W JCT CTH D, Dunn, WI

Built 1969 Load: 24.3 t ADT: 109

CTH O

Over: CRANBERRY CREEK

2.6M N JCT STH 85, Dunn, WI

Built 1966 Load: 24.3 t ADT: 158

CTH W

Over: BR RED CEDAR RIVER

2.9M N JCT STH 170, Dunn, WI

Built 1962 Load: 24.3 t ADT: 160

LRD 570TH ST

Over: LITTLE ELK CREEK

0.5M S JCT CTH J, Dunn, WI

Built 1947 Load: 24.3 t ADT: 76

IH 94

Over: BR MUDDY CREEK

3.3M E JCT CTH B TO N, Dunn, WI

Built 1958 Load: 25.9 t ADT: 36,700

STH 29

Over: BR GILBERT CREEK

2.2M E JCT CTH N, Dunn, WI

Built 1968 Load: 25.9 t ADT: 3,300

LRD 790TH ST

Over: MUDDY CREEK

0.4M N JCT CTH C, Dunn, WI

Built 1974 Load: 25.9 t ADT: 106

LRD 790TH ST

Over: MUDDY CREEK

0.5M N JCT CTH C, Dunn, WI

Built 1974 Load: 25.9 t ADT: 108

STH 79-EAST ST

Over: TIFFANY CREEK

0.1M N JCT STH 170 TO W, Dunn, WI

Built 1955 Load: 27.5 t ADT: 1,200

STH 64

Over: HAY RIVER

0.7M E JCT CTH F TO S, Dunn, WI

Built 1936 Load: 27.5 t ADT: 1,700

STH 170-WHEELER ST

Over: RED CEDAR RIVER

0.6M E JCT CTH W, Dunn, WI

Built 1950 Load: 29.2 t ADT: 1,600

STH 79

Over: S FK HAY RIVER

0.7M N JCT CTH N, Dunn, WI

Built 1955 Load: 29.2 t ADT: 1,200

LRD 860TH ST

Over: UPPER PINE CREEK

0.2M N JCT CTH U, Dunn, WI

Built 1983 Load: 29.2 t ADT: 126

CTH Y

Over: LITTLE ELK CREEK

2.5M N JCT CTH C, Dunn, WI

Built 1985 Load: 29.2 t ADT: 537

STH 170

Over: BEAVER CREEK

0.1M E JCT CTH Q TO N, Dunn, WI

Built 1956 Load: 30.8 t ADT: 2,500

IH 94 EB

Over: ELK MOUND MARSH EQUALIZR

4.3M E JCT CTH B TO N, Dunn, WI

Built 1958 Load: 30.8 t ADT: 18,350

STH 25

Over: LAKE TAINTER

1.7M N JCT CTH BB TO E, Dunn, WI

Built 1961 Load: 30.8 t ADT: 3,800

LRD 410TH AVE

Over: ELK CREEK

1.5M E JCT CTH H, Dunn, WI

Built 1984 Load: 30.8 t ADT: 101

LRD DUFFY ST

Over: TIFFANY CREEK

0.2M N JCT STH 170, Dunn, WI

Built 1985 Load: 30.8 t ADT: 162

IH 94 WB

Over: ELK MOUND MARSH EQUALIZR

2.2M W JCT USH 12 TO W, Dunn, WI

Built 1958 Load: 32.4 t ADT: 18,350

STH 29

Over: S BR GILBERT CREEK

1.8M E JCT CTH PP, Dunn, WI

Built 1969 Load: 32.4 t ADT: 1,800

STH 64

Over: OTTER CREEK

2.2M E JCT STH 25 TO N, Dunn, WI

Built 1975 Load: 32.4 t ADT: 1,000

STH 64

Over: BEAVER CREEK

0.1M E JCT CTH M, Dunn, WI

Built 1987 Load: 32.4 t ADT: 2,000

STH 85

Over: BR CHIPPEWA RIVER

0.2M E JCT CTH H TO N, Dunn, WI

Built 1992 Load: 32.4 t ADT: 2,800

CTH J

Over: LITTLE ELK CREEK

TOWN OF RED CEDAR, Dunn, WI

Built 1996 Load: 32.4 t ADT: 639

USH 12 EB-STH 25 S

Over: RED CEDAR RIVER

1.1M E JCT STH 25, Dunn, WI

Built 1941 Load: 32.4 t ADT: 8,950

USH 12

Over: ANNIS CREEK

1.5M E JCT CTH K, Dunn, WI

Built 1949 Load: 32.4 t ADT: 2,900

LRD 1450TH ST

Over: S FK HAY RIVER

0.2M E JCT CTH K, Dunn, WI

Built 1983 Load: 32.4 t ADT: 80

CTH I

Over: TRIB RED CEDAR RIVER

1.7M N JCT CTH V, Dunn, WI

Built 1964 Load: 32.4 t ADT: 213

LRD 150TH ST (DEAD

Over: TIFFANY CREEK

1.3M N JCT STH 170, Dunn, WI

Built 1986 Load: 34.0 t ADT: 30

LRD 1390TH AVE

Over: HAY RIVER

0.1M W JCT CTH K, Dunn, WI

Built 1987 Load: 34.0 t ADT: 50

USH12-STH29

Over: UNION PACIFIC RR

1.0M W JCT STH 40, Dunn, WI

Built 1989 Load: 34.0 t ADT: 7,100

STH 40

Over: SINKING CREEK

2.1M N JCT CTH E, Dunn, WI

Built 1990 Load: 34.0 t ADT: 1,400

CTH Q

Over: BR S FK HAY RIVER

1.7M N JCT CTH N, Dunn, WI

Built 1980 Load: 34.0 t ADT: 400

IH 94

Over: MUDDY CREEK

3.8M E JCT CTH B TO N, Dunn, WI

Built 1959 Load: 35.6 t ADT: 36,700

STH 72

Over: KNIGHTS CREEK

3.7M E JCT CTH C, Dunn, WI

Built 1989 Load: 35.6 t ADT: 1,300

CTH C

Over: ELK CREEK

1.9M E JCT CTH H, Dunn, WI

Built 1979 Load: 35.6 t ADT: 803

CTH D

Over: LAMB CREEK

0.9M E JCT STH 25, Dunn, WI

Built 1984 Load: 35.6 t ADT: 1,927

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 6, 2026