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)

STH 97

Good

Over: BALDWIN CR

0.2 MI S OF TAYLOR CO LIN, Marathon, WI

Built 2005 Load: 34.0 t ADT: 1,700

LRD EAGLE NEST BLV

Good

Over: CEDAR CREEK

0.1 MI. E. JCT OF BUS. 51, Marathon, WI

Built 2005 Load: 34.0 t ADT: 8,555

CTH N

Good

Over: WINDING CREEK

1.8M E JCT STH 13, Marathon, WI

Built 2007 Load: 34.0 t ADT: 1,350

LRD MUTUAL AVE

Good

Over: MABBOTT CREEK

0.8M N JCT CTH P, Marathon, WI

Built 2008 Load: 34.0 t ADT: 103

LRD HAZELNUT ROAD

Good

Over: BIG EAU PLEINE RIVER

0.9M S JCT CTH N, Marathon, WI

Built 2008 Load: 34.7 t ADT: 36

CTH M

Good

Over: FENWOOD CREEK

0.3M S JCT CTH N, Marathon, WI

Built 2017 Load: 35.3 t ADT: 300

CTH Q

Good

Over: MOLE BROOK

0.2M S JCT CTH N, Marathon, WI

Built 2019 Load: 35.3 t ADT: 610

CTH G

Good

Over: BR TRAPPE RIVER

1.2M E JCT CTH Q, Marathon, WI

Built 2020 Load: 35.3 t ADT: 140

IH USH 51-IH 39 SB

Good

Over: WISCONSIN RIVER 26

2.6M S JCT STH 29 TO E, Marathon, WI

Built 1968 Load: 35.6 t ADT: 37,700

LRD RIVER RD

Good

Over: LITTLE EAU PLEINE RIVER

0.1M S JCT STH 153, Marathon, WI

Built 1984 Load: 35.6 t ADT: 100

LRD NAUGERT RD

Good

Over: BR LITTLE RIB RIVER

1.3M W JCT CTH O, Marathon, WI

Built 2004 Load: 35.6 t ADT: 25

LRD SHANTY TOWN DR

Good

Over: PLOVER RIVER

1.0M W JCT CTH Y, Marathon, WI

Built 1989 Load: 35.6 t ADT: 100

LRD LINCOLN RD (DE

Good

Over: MCGINNIS CREEK

0.5M W JCT CTH S, Marathon, WI

Built 1992 Load: 35.6 t ADT: 12

LRD NAUGART RD

Good

Over: GRASS CREEK

1.7M E JCT CTH S, Marathon, WI

Built 1993 Load: 35.6 t ADT: 22

LRD HIGHLAND RD

Good

Over: E BR BIG SANDY CREEK

0.5M N JCT CTH Z, Marathon, WI

Built 1997 Load: 35.6 t ADT: 21

STH 153

Good

Over: FREEMAN CREEK

1.0M E JCT CTH S, Marathon, WI

Built 2001 Load: 35.6 t ADT: 3,600

STH 153

Good

Over: HOG CREEK

3.4M E JCT STH 107, Marathon, WI

Built 2001 Load: 35.6 t ADT: 3,300

USH 51 NB-STH 29 W

Good

Over: BIG RIB RIVER

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

Built 2008 Load: 35.6 t ADT: 30,550

LRD BIG RIB RIVER

Good

Over: GRASS CREEK

1.2M E JCT CTH S, Marathon, WI

Built 2005 Load: 35.6 t ADT: 36

CTH C

Good

Over: LITTLE EAU PLEIN RIVER

1.9 MI. W. OF STH 97, Marathon, WI

Built 2003 Load: 35.6 t ADT: 1,000

LRD PIT RD

Good

Over: BIG SANDY CR

1.2 MI N JCT STH 52, Marathon, WI

Built 2013 Load: 35.6 t ADT: 75

CTH N

Good

Over: WISCONSIN RIVER 30

0.2M W JCT USH B51, Marathon, WI

Built 1951 Load: 35.6 t ADT: 16,100

LRD SODA CREEK RD

Good

Over: BR SCOTCH CREEK

0.8M E JCT CTH S, Marathon, WI

Built 1930 Load: 35.6 t ADT: 89

LRD HUCKLEBERRY RD

Good

Over: SCOTCH CREEK

1.7M E JCT CTH M, Marathon, WI

Built 2009 Load: 36.0 t ADT: 103

LRD HUCKLEBERRY RD

Good

Over: FENWOOD CREEK

0.9M W JCT CTH M, Marathon, WI

Built 2009 Load: 36.0 t ADT: 103

LRD PINE VIEW RD

Good

Over: PLOVER RIVER

0.9M E JCT CTH Y, Marathon, WI

Built 2012 Load: 36.0 t ADT: 111

CTH A

Good

Over: LITTLE RIB RIVER

2.6M E JCT STH 107, Marathon, WI

Built 2022 Load: 36.0 t ADT: 1,130

LRD FENCE RD

Good

Over: E BR BIG EAU PLEINE RIVE

0.8M W JCT CTH F, Marathon, WI

Built 2021 Load: 36.0 t ADT: 85

LRD CHESAK RD.

Good

Over: FENWOOD CREEK

1.4M W JCT CTH M, Marathon, WI

Built 1965 Load: 36.0 t ADT: 30

CTH G

Good

Over: BR EAU CLAIRE RIVER

0.2M W JCT CTH Y, Marathon, WI

Built 2009 Load: 36.3 t ADT: 499

LRD HOLTON RD

Good

Over: E BR BIG EAU PLEINE RIVE

0.7M W JCT CTH F, Marathon, WI

Built 2021 Load: 36.3 t ADT: 90

CTH K

Good

Over: S BR COUNTY LINE CREEK

1.7M N JCT CTH F, Marathon, WI

Built 2022 Load: 36.3 t ADT: 3,400

CTH M

Good

Over: LITTLE EAU PLEINE R

2.6M S JCT CTH C, Marathon, WI

Built 2012 Load: 36.6 t ADT: 1,700

USH B51-GRAND AVE

Good

Over: CEDAR CREEK

0.5M N JCT USH 51, Marathon, WI

Built 2015 Load: 36.6 t ADT: 9,600

LRD ELM RD

Good

Over: DILL CREEK

3.9M S JCT CTH N, Marathon, WI

Built 2019 Load: 36.9 t ADT: 100

LRD EQUITY ST

Good

Over: NOISY CREEK

1.1M W JCT STH 97, Marathon, WI

Built 2023 Load: 36.9 t ADT: 185

LRD JERSEY FALLS T

Good

Over: PINE CREEK

1.1M N JCT CTH U, Marathon, WI

Built 2023 Load: 36.9 t ADT: 100

LRD OWL RIDGE RD

Good

Over: BIG SANDY CREEK

0.1M E JCT CTH J, Marathon, WI

Built 1990 Load: 37.3 t ADT: 130

LRD CHESTNUT ROAD

Good

Over: PORKY CREEK

0.7M S JCT STH 29, Marathon, WI

Built 1990 Load: 37.3 t ADT: 70

LRD KINGTON RD

Good

Over: LITTLE EAU PLEINE RIVER

0.7M E JCT STH 13, Marathon, WI

Built 1993 Load: 37.3 t ADT: 54

LRD GLENVIEW RD

Good

Over: E BR BIG SANDY CREEK

1.1M E JCT CTH Q, Marathon, WI

Built 1993 Load: 37.3 t ADT: 55

STH 29 WB

Good

Over: PET BROOK

2.3M W JCT CTH S, Marathon, WI

Built 1998 Load: 37.3 t ADT: 8,700

LRD CAMPUS DRIVE

Good

Over: BOS CREEK

CITY OF WAUSAU, Marathon, WI

Built 2000 Load: 37.3 t ADT: 4,160

LRD GULDAN ST

Good

Over: BR LITTLE EAU PLEINE RIV

2.4M E JCT CTH M, Marathon, WI

Built 2002 Load: 37.3 t ADT: 135

LRD LESTER STREET

Good

Over: LITTLE SANDY CREEK

0.4M S JCT CTH N, Marathon, WI

Built 2003 Load: 37.3 t ADT: 580

LRD BLACKBERRY RD

Good

Over: HAMAN CREEK

1.3M W JCT STH 97, Marathon, WI

Built 2002 Load: 37.3 t ADT: 120

CTH S

Good

Over: TR. BIG RIB RIVER

0.8M N JCT STH 29, Marathon, WI

Built 2002 Load: 37.3 t ADT: 727

STH 29

Good

Over: WCL

1.2M E OF USH 51N, Marathon, WI

Built 2008 Load: 37.3 t ADT: 7,400

LRD LRD N. FREY RO

Good

Over: CARLSON CREEK

2.1M S. JCT STH 153, Marathon, WI

Built 2002 Load: 37.3 t ADT: 274

STH 29 EB OFF RAMP

Good

Over: PLOVER RIVER

3.85M E JCT CTH Q, Marathon, WI

Built 2005 Load: 37.3 t ADT: 1,600

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