Sth 58 over Little Baraboo River
FairSauk County, Wisconsin · 3.3M N JCT Cth G to E · Structure no. B56006700000000
- Built
- 1984
- 41 years old
- Condition
- Fair
- inspected October 2023
- Type
- Slab
- Concrete Continuous
- Length
- 72 ft
- 3 main spans
- Daily traffic
- 1,400
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
Sth 58 over Little Baraboo River is a concrete continuous slab carrying Sth 58 over Little Baraboo River in Sauk County, Wisconsin. It was built in 1984, so it is 41 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 1,400 vehicles a day, roughly 9% of them trucks, projected to reach 1,680 by 2042. The structure is 72 ft (21.9 m) long and 36 ft wide. If it were closed, the detour would be 6.8 mi (11 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Sth 58 over Little Baraboo River built?
It was built in 1984, making it 41 years old in 2025.
What condition is Sth 58 over Little Baraboo 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 October 2023.
How much traffic does Sth 58 over Little Baraboo River carry?
About 1,400 vehicles per day (2021 count), of which roughly 9% are trucks.
How long is Sth 58 over Little Baraboo River?
The structure is 72 ft (21.9 m) long with a longest span of 35 ft (10.7 m) and a deck 36 ft wide.
Who owns Sth 58 over Little Baraboo River?
It is owned by the State Highway Agency.