Sth 23 over Wis River Overflow
FairSauk County, Wisconsin · 0.8M E JCT Cth C to E · Structure no. B56016500000000
- Built
- 2005
- 20 years old
- Condition
- Fair
- inspected January 2025
- Type
- Slab
- Concrete Continuous
- Length
- 393 ft
- 7 main spans
- Daily traffic
- 2,900
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
Sth 23 over Wis River Overflow is a concrete continuous slab carrying Sth 23 over Wis River Overflow in Sauk County, Wisconsin. It was built in 2005, so it is 20 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 2,900 vehicles a day, roughly 11% of them trucks, projected to reach 3,480 by 2041. The structure is 393 ft (119.9 m) long and 47 ft wide. If it were closed, the detour would be 28 mi (45 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Sth 23 over Wis River Overflow built?
It was built in 2005, making it 20 years old in 2025.
What condition is Sth 23 over Wis River Overflow 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 January 2025.
How much traffic does Sth 23 over Wis River Overflow carry?
About 2,900 vehicles per day (2021 count), of which roughly 11% are trucks.
How long is Sth 23 over Wis River Overflow?
The structure is 393 ft (119.9 m) long with a longest span of 61 ft (18.6 m) and a deck 47 ft wide.
Who owns Sth 23 over Wis River Overflow?
It is owned by the State Highway Agency.