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)

LRD LINCOLN RD

Good

Over: W FK LITTLE RIB RIVER

0.1M E JCT STH 107, Marathon, WI

Built 1985 Load: 29.2 t ADT: 70

LRD VALLEY LANE

Good

Over: LITTLE RIB RIVER

0.1M S JCT CTH F, Marathon, WI

Built 1985 Load: 29.2 t ADT: 140

LRD FENCE RD

Good

Over: W BR BIG EAU PLEINE R

2.2M E JCT STH 13, Marathon, WI

Built 1985 Load: 29.2 t ADT: 89

LRD CARDINAL LANE

Good

Over: SCOTCH CREEK

2.1M N JCT CTH N, Marathon, WI

Built 1989 Load: 29.2 t ADT: 100

LRD HALDER DR

Good

Over: FREEMAN CREEK

0.6M E JCT STH 153, Marathon, WI

Built 2000 Load: 29.2 t ADT: 241

CTH T

Good

Over: SCHEURER CREEK

1.7M S JCT STH 97, Marathon, WI

Built 2005 Load: 29.2 t ADT: 900

IH USH 51 -IH 39 S

Good

Over: JOHNSON CREEK

3.2M S JCT STH 34 TO S, Marathon, WI

Built 1972 Load: 30.8 t ADT: 11,157

LRD MEADOW RD

Good

Over: BR SANDY CREEK

1.8M E JCT STH 52, Marathon, WI

Built 1985 Load: 30.8 t ADT: 66

STH 29 WB

Good

Over: RANDALL CREEK

1.0M W JCT CTH E TO S, Marathon, WI

Built 1999 Load: 30.8 t ADT: 5,800

LRD BALSAM RD

Good

Over: EAU PLEINE FLOWAGE

1.8M E JCT CTH M, Marathon, WI

Built 2005 Load: 30.8 t ADT: 136

LRD DREWEK CREEK R

Good

Over: DREWEK CREEK

0.5M N JCT CTH M, Marathon, WI

Built 1938 Load: 30.8 t ADT: 42

CTH K

Good

Over: SILVER CREEK

0.4M N JCT CTH A, Marathon, WI

Built 2012 Load: 31.4 t ADT: 8,120

IH USH 51-IH 39 NB

Good

Over: WISCONSIN RIVER 27

0.4M N JCT USH B51 TO N, Marathon, WI

Built 1961 Load: 32.4 t ADT: 18,800

LRD 28TH AVE

Good

Over: BR WISCONSIN RIVER

1.2M N JCT CTH WW, Marathon, WI

Built 1989 Load: 32.4 t ADT: 67

LRD 6TH ST

Good

Over: JIM MOORE CREEK

0.9M N JCT STH 52, Marathon, WI

Built 1986 Load: 32.4 t ADT: 7,100

CTH S

Good

Over: BIG EAU PLEINE RESERVOIR

0.5M N JCT CTH C, Marathon, WI

Built 1996 Load: 32.4 t ADT: 856

LRD FAIRHAVEN ROAD

Good

Over: BR YELLOW RIVER

3.3M S JCT STH 98, Marathon, WI

Built 2003 Load: 32.4 t ADT: 102

CTH H

Good

Over: TRIB TO PET BROOK

0.1M N JCT STH 29, Marathon, WI

Built 1997 Load: 32.4 t ADT: 1,653

STH 29 EB

Good

Over: PORKY CREEK

1.9M E JCT STH 13, Marathon, WI

Built 1998 Load: 32.4 t ADT: 9,200

STH 29 EB

Good

Over: BIG EAU PLEINE RIVER

3.0M E JCT STH 13, Marathon, WI

Built 1998 Load: 32.4 t ADT: 5,900

STH 153-FIR ST

Good

Over: BR BIG EAU PLEINE RIVER

0.2M E JCT STH 97, Marathon, WI

Built 2001 Load: 32.4 t ADT: 4,200

LRD THOMAS ST

Good

Over: CNW RR

0.1 MI W. JCT BUS 51, Marathon, WI

Built 2006 Load: 32.4 t ADT: 16,100

STH 29

Good

Over: ARTUS CR

1.9 MI E JCT STH 107, Marathon, WI

Built 2013 Load: 32.4 t ADT: 20,100

LRD JOHNSON CREEK

Good

Over: JOHNSON CREEK

0.33M WEST OF CTH X, Marathon, WI

Built 2012 Load: 32.4 t ADT: 100

LRD SANDSTONE FALL

Good

Over: EINERT CREEK

1.2M W JCT CTH S, Marathon, WI

Built 2021 Load: 32.4 t ADT: 25

LRD MIDPOINT RD

Good

Over: FOUR MILE CREEK

1.5M S JCT CTH N, Marathon, WI

Built 2022 Load: 32.4 t ADT: 88

LRD WINDFALL HILL

Good

Over: BEAVER CREEK

1.2M W JCT STH 97, Marathon, WI

Built 1989 Load: 32.4 t ADT: 44

LRD MERIDIAN RD

Good

Over: DREWEK CREEK

1.6M N JCT CTH U, Marathon, WI

Built 1975 Load: 32.4 t ADT: 108

LRD EAU CLAIRE RIV

Good

Over: BR EAU CLAIRE RIVER

0.5M W JCT CTH Y, Marathon, WI

Built 2014 Load: 32.4 t ADT: 152

LRD CREEK RD

Good

Over: BULL JUNIOR CREEK

0.9M S JCT CTH X, Marathon, WI

Built 1987 Load: 32.4 t ADT: 50

LRD KMIECIK RD (DE

Good

Over: BULL JUNIOR CREEK

2.4M S JCT STH 29, Marathon, WI

Built 1965 Load: 32.4 t ADT: 50

LRD RIVER RUN RD

Good

Over: WILD CREEK

0.7M E JCT STH 97, Marathon, WI

Built 1991 Load: 32.4 t ADT: 50

LRD PLEASENT RD

Good

Over: SAMPSON CREEK

0.9M S JCT CTH X, Marathon, WI

Built 1988 Load: 32.4 t ADT: 50

LRD LOCKER RD

Good

Over: PEPLIN CREEK

2.3M W JCT CTH X, Marathon, WI

Built 2023 Load: 32.4 t ADT: 118

LRD CREEK RD

Good

Over: SAMPSON CREEK

1.5M S JCT CTH X, Marathon, WI

Built 2023 Load: 32.4 t ADT: 52

LRD SCHNELLE RD

Good

Over: FENWOOD CREEK

0.1M E JCT CTH M, Marathon, WI

Built 2012 Load: 32.7 t ADT: 81

CTH K

Good

Over: N BR COUNTY LINE CREEK

1.9M N JCT CTH F, Marathon, WI

Built 2022 Load: 33.4 t ADT: 3,400

LRD SCOTCH CREEK R

Good

Over: SCOTCH CREEK

1.5M S JCT STH 29, Marathon, WI

Built 1985 Load: 34.0 t ADT: 112

LRD LINCOLN RD

Good

Over: BR LITTLE RIB RIVER

0.8M E JCT CTH O, Marathon, WI

Built 1986 Load: 34.0 t ADT: 85

LRD MAPLE LEAF RD

Good

Over: BURNS CREEK

1.5M N JCT STH 153, Marathon, WI

Built 1992 Load: 34.0 t ADT: 80

LRD SANDY RIVER RD

Good

Over: LITTLE SANDY CREEK

0.8M N JCT CTH N, Marathon, WI

Built 1995 Load: 34.0 t ADT: 32

LRD STAR RD

Good

Over: BIG SANDY CREEK

0.2M N JCT STH 52, Marathon, WI

Built 1995 Load: 34.0 t ADT: 40

LRD 128TH AVE

Good

Over: W FK LITTLE RIB RIVER

0.9M S JCT CTH A, Marathon, WI

Built 1997 Load: 34.0 t ADT: 30

CTH J

Good

Over: LITTLE SANDY CREEK

0.2M S JCT CTH N, Marathon, WI

Built 1998 Load: 34.0 t ADT: 1,612

STH 52

Good

Over: BIG SANDY CREEK

2.1M E JCT CTH J TO N, Marathon, WI

Built 2002 Load: 34.0 t ADT: 2,400

LRD FRIEDERS RD

Good

Over: DENNY CREEK

1.5M E JCT CTH M, Marathon, WI

Built 2001 Load: 34.0 t ADT: 15

LRD EAU CLAIRE RIV

Good

Over: BR EAU PLEINE RIVER

1.2M N JCT CTH Z, Marathon, WI

Built 2002 Load: 34.0 t ADT: 146

USH 51 SB-STH 29 E

Good

Over: BIG RIB RIVER

1.7M S JCT STH 29 TO W, Marathon, WI

Built 2006 Load: 34.0 t ADT: 30,550

USH 51 NB

Good

Over: WIS CENTRAL LTD RR

4.5M N JCT STH29TOEAST, Marathon, WI

Built 2007 Load: 34.0 t ADT: 34,100

USH 51 SB

Good

Over: WISCONSIN CENTRAL RR

1.1M S JCT STH 52, Marathon, WI

Built 2007 Load: 34.0 t ADT: 34,100

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