Sth 13 over Siskiwit River
FairBayfield County, Wisconsin · 11.0M N JCT Cth K to E · Structure no. B04006300000000
- Built
- 1992
- 33 years old
- Condition
- Fair
- inspected May 2024
- Type
- Slab
- Concrete Continuous
- Length
- 89 ft
- 2 main spans
- Daily traffic
- 780
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Sth 13 over Siskiwit River is a concrete continuous slab carrying Sth 13 over Siskiwit River in Bayfield County, Wisconsin. It was built in 1992, so it is 33 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 780 vehicles a day, projected to reach 1,188 by 2043. The structure is 89 ft (27 m) long and 44 ft wide. If it were closed, the detour would be 49.7 mi (80 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 13 over Siskiwit River built?
It was built in 1992, making it 33 years old in 2025.
What condition is Sth 13 over Siskiwit 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 May 2024.
How much traffic does Sth 13 over Siskiwit River carry?
About 780 vehicles per day (2022 count).
How long is Sth 13 over Siskiwit River?
The structure is 89 ft (27 m) long with a longest span of 44 ft (13.4 m) and a deck 44 ft wide.
Who owns Sth 13 over Siskiwit River?
It is owned by the State Highway Agency.