Sth 77 over Namekagon River
GoodWashburn County, Wisconsin · 5.6M E JCT Cth H · Structure no. B65004900000000
- Built
- 2005
- 20 years old
- Condition
- Good
- inspected September 2021
- Type
- Stringer/Multi-beam or Girder
- Concrete
- Length
- 154 ft
- 1 main span
- Daily traffic
- 1,300
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Sth 77 over Namekagon River is a concrete stringer/multi-beam or girder carrying Sth 77 over Namekagon River in Washburn 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 1,300 vehicles a day, projected to reach 1,200 by 2040. The structure is 154 ft (46.9 m) long and 38 ft wide. If it were closed, the detour would be 33.6 mi (54 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| 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 77 over Namekagon River built?
It was built in 2005, making it 20 years old in 2025.
What condition is Sth 77 over Namekagon River in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2021.
How much traffic does Sth 77 over Namekagon River carry?
About 1,300 vehicles per day (2023 count).
How long is Sth 77 over Namekagon River?
The structure is 154 ft (46.9 m) long with a longest span of 150 ft (45.7 m) and a deck 38 ft wide.
Who owns Sth 77 over Namekagon River?
It is owned by the State Highway Agency.