Sth 13 over Flag River
FairBayfield County, Wisconsin · 14.5M N JCT Cth C to S · Structure no. B04006200000000
- Built
- 1992
- 33 years old
- Condition
- Fair
- inspected May 2024
- Type
- Slab
- Concrete Continuous
- Length
- 64 ft
- 2 main spans
- Daily traffic
- 930
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Sth 13 over Flag River is a concrete continuous slab carrying Sth 13 over Flag 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 930 vehicles a day, roughly 13% of them trucks, projected to reach 864 by 2043. The structure is 64 ft (19.4 m) long and 38 ft wide. If it were closed, the detour would be 59.7 mi (96 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 13 over Flag River built?
It was built in 1992, making it 33 years old in 2025.
What condition is Sth 13 over Flag 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 Flag River carry?
About 930 vehicles per day (2022 count), of which roughly 13% are trucks.
How long is Sth 13 over Flag River?
The structure is 64 ft (19.4 m) long with a longest span of 31 ft (9.6 m) and a deck 38 ft wide.
Who owns Sth 13 over Flag River?
It is owned by the State Highway Agency.