US Bridges

Sth 29 over Fenwood Creek

Fair

Marathon County, Wisconsin · 1.3M E JCT Sth 97 · Structure no. B37005200000000

Built
1957
68 years old, rebuilt 1999
Condition
Fair
inspected September 2024
Type
Culvert
Concrete Continuous
Length
22 ft
2 main spans
Daily traffic
15,200
2023 count
Owner
State
State Highway Agency

About this bridge

Sth 29 over Fenwood Creek is a concrete continuous culvert carrying Sth 29 over Fenwood Creek in Marathon County, Wisconsin. It was built in 1957 and reconstructed in 1999, so it is 68 years old, older 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 5 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 15,200 vehicles a day, roughly 8% of them trucks, projected to reach 14,670 by 2043. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 23 mi (37 km).

Location

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CarriesSth 29
CrossesFenwood Creek
Location1.3M E JCT Sth 97
RouteState Highway 29
CountyMarathon County
StateWisconsin
Coordinates44.94384, -90.05189
Functional classRural Principal Arterial - Other

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.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.5 US tons
Inventory rating41.1 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length22 ft (6.7 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,200 (2023)
Projected traffic14,670 by 2043
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed23 mi (37 km)
TollOn a free road
National Highway SystemYes

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 29 over Fenwood Creek built?

It was built in 1957, making it 68 years old in 2025. It was reconstructed in 1999.

What condition is Sth 29 over Fenwood 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 September 2024.

How much traffic does Sth 29 over Fenwood Creek carry?

About 15,200 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Sth 29 over Fenwood Creek?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m).

Who owns Sth 29 over Fenwood Creek?

It is owned by the State Highway Agency.