Sth 70 over Flambeau River
FairSawyer County, Wisconsin · 2.6M E JCT Cth Ee · Structure no. B57001300000000
- Built
- 1965
- 60 years old, rebuilt 1999
- Condition
- Fair
- inspected September 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 284 ft
- 4 main spans
- Daily traffic
- 960
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
Sth 70 over Flambeau River is a steel continuous stringer/multi-beam or girder carrying Sth 70 over Flambeau River in Sawyer County, Wisconsin. It was built in 1965 and reconstructed in 1999, so it is 60 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 960 vehicles a day, roughly 10% of them trucks, projected to reach 1,152 by 2041. The structure is 284 ft (86.6 m) long and 35 ft wide. If it were closed, the detour would be 33.6 mi (54 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 | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Sth 70 over Flambeau River built?
It was built in 1965, making it 60 years old in 2025. It was reconstructed in 1999.
What condition is Sth 70 over Flambeau 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 September 2023.
How much traffic does Sth 70 over Flambeau River carry?
About 960 vehicles per day (2021 count), of which roughly 10% are trucks.
How long is Sth 70 over Flambeau River?
The structure is 284 ft (86.6 m) long with a longest span of 78 ft (23.8 m) and a deck 35 ft wide.
Who owns Sth 70 over Flambeau River?
It is owned by the State Highway Agency.