Marathon County, WI

534 public highway bridges

Marathon County Bridge Snapshot

Marathon County, Wisconsin contains 534 public highway bridges in the FHWA National Bridge Inventory. Roughly 38% are rated “Good,” 37.3% “Fair,” 10.1% “Poor,” and 10.1% 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.

534

Total Bridges

38%

Good

10.1%

Poor

10.1%

Structurally Deficient

Condition Distribution

Good

38% (203)

Fair

37.3% (199)

Poor

10.1% (54)

SD

10.1% (54)

All Bridges (534)

Sort:

LRD SUNRISE RD

Over: TRAPPE RIVER

0.8M N JCT CTH G, Marathon, WI

Built 1973 Load: 29.2 t ADT: 25

LRD HOLLYWOOD LA

Over: FOUR MILE CREEK

2.6M S JCT CTH N, Marathon, WI

Built 1946 Load: 29.2 t ADT: 80

CTH C

Over: E BR LT EAU PLEINE RIVER

1.8M E STH 13, Marathon, WI

Built 1941 Load: 29.2 t ADT: 1,465

LRD NEHRBASS RD

Over: BALDWIN CREEK

2.7M N JCT CTH F, Marathon, WI

Built 1946 Load: 29.2 t ADT: 22

STH 153

Over: PLOVER RIVER

2.7M E JCT CTH J TO S, Marathon, WI

Built 1955 Load: 30.8 t ADT: 970

CTH N

Over: EAU CLAIRE RIVER

0.5M W JCT CTH Q TO S, Marathon, WI

Built 1957 Load: 30.8 t ADT: 1,825

STH 49

Over: LITTLE WOLF RIVER

4.5M N JCT STH 66 TO W, Marathon, WI

Built 1947 Load: 30.8 t ADT: 1,700

STH 49

Over: LITTLE WOLF RIVER

4.8M N JCT STH 66 TO W, Marathon, WI

Built 1947 Load: 30.8 t ADT: 1,700

STH 97-ALFRED ST

Over: BLACK CREEK

0.4M N JCT CTH M TO W, Marathon, WI

Built 1932 Load: 30.8 t ADT: 2,600

LRD DRAPER RD

Over: E BR BIG EAU PLEINE RIVE

0.3M W JCT CTH F, Marathon, WI

Built 1946 Load: 30.8 t ADT: 90

LRD HOLTON RD

Over: W BR BIG EAU PLEINE RIVE

2.1M W JCT CTH F, Marathon, WI

Built 1968 Load: 30.8 t ADT: 199

LRD WERTZBURG RD

Over: RANDALL CREEK

1.5M E JCT CTH E, Marathon, WI

Built 1975 Load: 30.8 t ADT: 103

LRD 136TH ST, (DEA

Over: ARTUS CREEK

0.3M N JCT STH 29, Marathon, WI

Built 1963 Load: 30.8 t ADT: 98

LRD HUCKLEBERRY RD

Over: HAMAN CREEK

1.4M W JCT STH 97, Marathon, WI

Built 1968 Load: 30.8 t ADT: 80

LRD HAZELNUT RD

Over: MARSH CREEK

1.3M S JCT STH 29, Marathon, WI

Built 1973 Load: 30.8 t ADT: 50

CTH KK

Over: FOUR MILE CREEK

3.8M N JCT CTH B, Marathon, WI

Built 1975 Load: 30.8 t ADT: 1,326

STH 29

Over: BROD CREEK

0.3M E JCT STH 97, Marathon, WI

Built 1957 Load: 32.4 t ADT: 13,700

CTH N

Over: BR BIG SANDY CREEK

2.3M W JCT CTH SS, Marathon, WI

Built 1962 Load: 32.4 t ADT: 3,699

STH 153-MAIN ST

Over: WISCONSIN RIVER 25

0.2M E JCT CTH B, Marathon, WI

Built 1963 Load: 32.4 t ADT: 13,100

USH B51-GRAND AVE

Over: WISCONSIN CENTRAL LTD

2.9M N JCT STH 29 TO E, Marathon, WI

Built 1964 Load: 32.4 t ADT: 31,844

STH 97-WEBER AVE

Over: BR BIG EAU PLEINE RIVER

3.8M N JCT CTH C TO E, Marathon, WI

Built 1967 Load: 32.4 t ADT: 7,000

STH 29 EB

Over: LITTLE RIB RIVER

3.6M E JCT CTH O, Marathon, WI

Built 1971 Load: 32.4 t ADT: 20,500

STH 29 WB

Over: LITTLE RIB RIVER

1.8M W JCT STH 52 TO E, Marathon, WI

Built 1971 Load: 32.4 t ADT: 20,500

LRD 14TH AVE

Over: BOS CREEK

0.6M N JCT USH B51, Marathon, WI

Built 1974 Load: 32.4 t ADT: 412

STH 13

Over: ROMEO CREEK

2.8M N JCT STH 98, Marathon, WI

Built 1989 Load: 32.4 t ADT: 6,200

CTH N

Over: ELM BROOK

0.1M E JCT STH 13, Marathon, WI

Built 1986 Load: 32.4 t ADT: 1,320

STH 97

Over: WILD CREEK

0.4M N JCT CTH C TO E, Marathon, WI

Built 1966 Load: 32.4 t ADT: 6,600

CTH A

Over: EINERT CREEK

0.1M E JCT CTH S TO S, Marathon, WI

Built 1986 Load: 32.4 t ADT: 1,203

STH 52

Over: PREBLE CREEK

5.8M E JCT CTH W, Marathon, WI

Built 1991 Load: 32.4 t ADT: 2,300

CTH C

Over: WILD CREEK

1.0M E JCT STH 97, Marathon, WI

Built 1968 Load: 32.4 t ADT: 2,620

STH 107

Over: BIG RIB RIVER

0.6M N JCT CTH B, Marathon, WI

Built 1989 Load: 32.4 t ADT: 5,500

CTH Q

Over: BIG SANDY CREEK

0.5M N JCT STH 52, Marathon, WI

Built 1991 Load: 32.4 t ADT: 601

STH 29

Over: MARSH CREEK

0.4M E JCT CTH F, Marathon, WI

Built 1999 Load: 32.4 t ADT: 11,900

STH 97

Over: POTATO CREEK

1.4M N JCT CTH M TO E, Marathon, WI

Built 1999 Load: 32.4 t ADT: 2,700

STH 29

Over: ELM BROOK

TOWN OF HULL, Marathon, WI

Built 1998 Load: 32.4 t ADT: 9,200

STH 153

Over: JOHNSON CREEK

2.5M E JCT CTH X, Marathon, WI

Built 1998 Load: 32.4 t ADT: 1,600

STH 49

Over: COMET CREEK

3.8M N JCT CTH C, Marathon, WI

Built 1941 Load: 32.4 t ADT: 1,900

CTH DB

Over: LAKE DU BAY

0.5M S JCT CTH C, Marathon, WI

Built 1942 Load: 32.4 t ADT: 1,803

LRD BUNGALOO RD

Over: BALDWIN CREEK

2.3M N JCT CTH F, Marathon, WI

Built 1974 Load: 32.4 t ADT: 42

LRD WOODLAND RD

Over: E BR BIG SANDY CREEK

1.8M S JCT STH 52, Marathon, WI

Built 1907 Load: 32.4 t ADT: 22

LRD CHESAK RD.

Over: BROD CREEK

0.1M W JCT STH 97, Marathon, WI

Built 1984 Load: 32.4 t ADT: 30

LRD BUTTERNUT RD

Over: BROD CREEK

1.3M N JCT CTH N, Marathon, WI

Built 1984 Load: 32.4 t ADT: 45

CTH P

Over: ROCK CREEK

1.1M E JCT STH 97, Marathon, WI

Built 1932 Load: 32.4 t ADT: 500

LRD KRISTOF RD

Over: PLOVER RIVER

0.3M W JCT CTH Y, Marathon, WI

Built 1978 Load: 32.4 t ADT: 50

LRD 44TH AVE

Over: OTTO CREEK

0.8M N JCT CTH U, Marathon, WI

Built 1991 Load: 32.4 t ADT: 268

STH 97

Over: E BR HAMANN CREEK

2.0M N JCT CTH N, Marathon, WI

Built 1988 Load: 34.0 t ADT: 3,400

LRD MOON RD

Over: HOG CREEK

2.3M E JCT CTH O, Marathon, WI

Built 1990 Load: 34.0 t ADT: 266

LRD ROSS AVENUE

Over: EAU CLAIRE RIVER

3.9M S JCT CTH N, Marathon, WI

Built 1979 Load: 34.0 t ADT: 402

STH 34

Over: WISCONSIN RIVER 24

1.8M N JCT CTH C TO W, Marathon, WI

Built 1980 Load: 34.0 t ADT: 6,300

LRD KONKEL RD

Over: PLOVER RIVER

0.6M W JCT CTH Y, Marathon, WI

Built 1982 Load: 34.0 t ADT: 228

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

Related

Browse all → | Rankings →

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