US Bridges

Sth 97 over Potato Creek

Fair

Marathon County, Wisconsin · 1.4M N JCT Cth M to E · Structure no. B37029100000000

Built
1999
26 years old
Condition
Fair
inspected October 2023
Type
Culvert
Concrete Continuous
Length
32 ft
2 main spans
Daily traffic
2,700
2022 count
Owner
State
State Highway Agency

About this bridge

Sth 97 over Potato Creek is a concrete continuous culvert carrying Sth 97 over Potato Creek in Marathon County, Wisconsin. It was built in 1999, so it is 26 years old, younger than the Wisconsin average of 40.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 2,700 vehicles a day, roughly 7% of them trucks, projected to reach 3,250 by 2042. The structure is 32 ft (9.8 m) long. If it were closed, the detour would be 23 mi (37 km).

Location

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CarriesSth 97
CrossesPotato Creek
Location1.4M N JCT Cth M to E
RouteState Highway 97
CountyMarathon County
StateWisconsin
Coordinates45.02394, -90.07858
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span14 ft (4.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,700 (2022)
Projected traffic3,250 by 2042
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed23 mi (37 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Sth 97 over Potato Creek built?

It was built in 1999, making it 26 years old in 2025.

What condition is Sth 97 over Potato Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2023.

How much traffic does Sth 97 over Potato Creek carry?

About 2,700 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is Sth 97 over Potato Creek?

The structure is 32 ft (9.8 m) long with a longest span of 14 ft (4.2 m).

Who owns Sth 97 over Potato Creek?

It is owned by the State Highway Agency.