Sth 29 WB over Little Rib River
FairMarathon County, Wisconsin · 1.8M W JCT Sth 52 to E · Structure no. B37012500000000
- Built
- 1971
- 54 years old
- Condition
- Fair
- inspected June 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 182 ft
- 3 main spans
- Daily traffic
- 20,500
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Sth 29 WB over Little Rib River is a prestressed concrete continuous stringer/multi-beam or girder carrying Sth 29 WB over Little Rib River in Marathon County, Wisconsin. It was built in 1971, so it is 54 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 20,500 vehicles a day, roughly 2% of them trucks, projected to reach 15,800 by 2043. The structure is 182 ft (55.5 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Sth 29 WB over Little Rib River built?
It was built in 1971, making it 54 years old in 2025.
What condition is Sth 29 WB over Little Rib 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 June 2024.
How much traffic does Sth 29 WB over Little Rib River carry?
About 20,500 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is Sth 29 WB over Little Rib River?
The structure is 182 ft (55.5 m) long with a longest span of 60 ft (18.4 m) and a deck 43 ft wide.
Who owns Sth 29 WB over Little Rib River?
It is owned by the State Highway Agency.