Sth 29 WB over Big Eau Pleine River
FairMarathon County, Wisconsin · 1.8M W JCT Cth F · Structure no. B37020200000000
- Built
- 1982
- 43 years old
- Condition
- Fair
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 163 ft
- 2 main spans
- Daily traffic
- 6,400
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Sth 29 WB over Big Eau Pleine River is a prestressed concrete continuous stringer/multi-beam or girder carrying Sth 29 WB over Big Eau Pleine River in Marathon County, Wisconsin. It was built in 1982, so it is 43 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 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 6,400 vehicles a day, roughly 20% of them trucks, projected to reach 15,000 by 2043. The structure is 163 ft (49.6 m) long and 43 ft wide. If it were closed, the detour would be 0.6 mi (1 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Sth 29 WB over Big Eau Pleine River built?
It was built in 1982, making it 43 years old in 2025.
What condition is Sth 29 WB over Big Eau Pleine River 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 WB over Big Eau Pleine River carry?
About 6,400 vehicles per day (2023 count), of which roughly 20% are trucks.
How long is Sth 29 WB over Big Eau Pleine River?
The structure is 163 ft (49.6 m) long with a longest span of 81 ft (24.7 m) and a deck 43 ft wide.
Who owns Sth 29 WB over Big Eau Pleine River?
It is owned by the State Highway Agency.