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)

CTH J

Poor

Over: TRAPPE RIVER

0.7M S JCT CTH G, Marathon, WI

Built 1964 Load: 21.1 t ADT: 620

LRD 96TH AVE

Poor

Over: LITTLE RIB RIVER

1.5M N JCT CTH U, Marathon, WI

Built 1941 Load: 21.1 t ADT: 93

CTH Q

Poor

Over: E BR BIG SANDY CREEK

0.9M N JCT CTH Z, Marathon, WI

Built 1967 Load: 21.1 t ADT: 601

CTH C

Poor

Over: PLOVER RIVER

0.3M W JCT CTH Y, Marathon, WI

Built 1954 Load: 22.7 t ADT: 809

LRD JUNCTION RD

Poor

Over: BIG SANDY CREEK

2.1M E JCT STH 52, Marathon, WI

Built 1920 Load: 22.7 t ADT: 86

LRD MCMILLAN RD

Poor

Over: SQUAW CREEK

0.8M E JCT CTH T, Marathon, WI

Built 1956 Load: 22.7 t ADT: 120

CTH VV

Poor

Over: LITTLE WOLF RIVER

0.4M E JCT STH 49, Marathon, WI

Built 1962 Load: 24.3 t ADT: 358

CTH M

Poor

Over: BIG EAU PLEINE RIVER

0.3M N JCT STH 153, Marathon, WI

Built 1975 Load: 24.3 t ADT: 635

LRD CHESAK RD

Poor

Over: BR SCOTCH CREEK

0.8M E JCT CTH H, Marathon, WI

Built 1931 Load: 24.3 t ADT: 125

LRD ABT RD

Poor

Over: MOLE BROOK

1.8M N JCT CTH Q, Marathon, WI

Built 1964 Load: 24.3 t ADT: 50

LRD COUNTY LINE RD

Poor

Over: BIG CAIN CREEK

1.6M E JCT CTH WW, Marathon, WI

Built 1965 Load: 24.3 t ADT: 246

CTH H

Poor

Over: BLACK CREEK

3.5M N JCT CTH U, Marathon, WI

Built 1969 Load: 25.9 t ADT: 806

LRD DUXBURY LANE

Poor

Over: LITTLE EAU PLEINE RIVER

0.7M W JCT CTH F, Marathon, WI

Built 1965 Load: 25.9 t ADT: 56

LRD ROCK RD

Poor

Over: ROCK CREEK

0.5M E JCT STH 97, Marathon, WI

Built 1946 Load: 25.9 t ADT: 50

LRD GULDAN ST

Poor

Over: WILD CREEK

0.7M E JCT CTH M, Marathon, WI

Built 1967 Load: 27.5 t ADT: 90

LRD MULBERRY RD

Poor

Over: WINDING CREEK

2.6M W JCT CTH F, Marathon, WI

Built 1955 Load: 29.2 t ADT: 98

LRD BEVENT RD (DEA

Poor

Over: LITTLE EAU CLAIRE RIVER

1.5M W JCT CTH J, Marathon, WI

Built 1964 Load: 30.8 t ADT: 90

USH STH 52 EB-USH

Poor

Over: WISCONSIN RIVER 31

0.4M S JCT STH 52 TO W, Marathon, WI

Built 1915 Load: 32.4 t ADT: 28,144

LRD KENTON RD

Poor

Over: LITTLE EAU PLEINE RIVER

1.6M E JCT STH 13, Marathon, WI

Built 1975 Load: 32.4 t ADT: 38

LRD SMOKY HILL RD

Poor

Over: LITTLE EAU PLEINE RIVER

2.1M S JCT CTH C, Marathon, WI

Built 1975 Load: 32.4 t ADT: 88

CTH N

Poor

Over: BIG EAU PLEINE RIVER

0.2M E JCT CTH F TO S, Marathon, WI

Built 1961 Load: 34.0 t ADT: 1,106

LRD CLUB HOUSE RD

Poor

Over: EAU CLAIRE RIVER

1.2M N JCT STH 29, Marathon, WI

Built 1981 Load: 35.6 t ADT: 90

LRD LINCOLN DR

Poor

Over: LITTLE RIB RIVER

1.3M W JCT CTH O, Marathon, WI

Built 1991 Load: 37.3 t ADT: 63

LRD STETTIN DRIVE

Poor

Over: LITTLE RIB RIVER

2.3M W JCT STH 52, Marathon, WI

Built 1985 Load: 38.9 t ADT: 1,100

CTH J

Poor

Over: BIG SANDY CREEK

1.3M N JCT CTH N, Marathon, WI

Built 1979 Load: 43.7 t ADT: 1,455

CTH L

Structurally Deficient

Over: BLACK CREEK

0.9M W JCT CTH M, Marathon, WI

Built 1958 Load: 13.0 t ADT: 723

LRD PLEASANT RD

Structurally Deficient

Over: E BR YELLOW RIVER

1.5M S JCT STH 13, Marathon, WI

Built 1947 Load: 16.2 t ADT: 132

CTH M

Structurally Deficient

Over: FENWOOD CREEK

1.2M N JCT CTH P, Marathon, WI

Built 1938 Load: 17.8 t ADT: 282

LRD WOODLAND DR

Structurally Deficient

Over: BR LITTLE RIB RIVER

1.7M E JCT CTH O, Marathon, WI

Built 1929 Load: 19.4 t ADT: 110

LRD ASPEN RD

Structurally Deficient

Over: SCOTCH CREEK

0.8M N JCT CTH H, Marathon, WI

Built 1968 Load: 19.4 t ADT: 271

LRD 18TH ST

Structurally Deficient

Over: BR BIG RIB RIVER

1.1M N JCT CTH U, Marathon, WI

Built 1929 Load: 22.7 t ADT: 75

LRD 60TH AVE

Structurally Deficient

Over: OTTO CREEK

0.1M N JCT CTH U, Marathon, WI

Built 1955 Load: 24.3 t ADT: 90

LRD HUCKLEBERRY RD

Structurally Deficient

Over: RANDALL CREEK

1.9M W JCT CTH E, Marathon, WI

Built 1920 Load: 25.9 t ADT: 30

LRD COLUMBUS ST

Structurally Deficient

Over: PLOVER RIVER

0.7M N JCT STH 29, Marathon, WI

Built 1958 Load: 38.9 t ADT: 391

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