Sth 79 over S Fk Hay River
FairDunn County, Wisconsin · 0.7M N JCT Cth N · Structure no. B17001400000000
- Built
- 1955
- 70 years old, rebuilt 1987
- Condition
- Fair
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 134 ft
- 3 main spans
- Daily traffic
- 1,200
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Sth 79 over S Fk Hay River is a steel continuous stringer/multi-beam or girder carrying Sth 79 over S Fk Hay River in Dunn County, Wisconsin. It was built in 1955 and reconstructed in 1987, so it is 70 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 5 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 1,200 vehicles a day, roughly 5% of them trucks, projected to reach 1,440 by 2043. The structure is 134 ft (40.9 m) long and 30 ft wide. If it were closed, the detour would be 26.7 mi (43 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 79 over S Fk Hay River built?
It was built in 1955, making it 70 years old in 2025. It was reconstructed in 1987.
What condition is Sth 79 over S Fk Hay 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 August 2024.
How much traffic does Sth 79 over S Fk Hay River carry?
About 1,200 vehicles per day (2022 count), of which roughly 5% are trucks.
How long is Sth 79 over S Fk Hay River?
The structure is 134 ft (40.9 m) long with a longest span of 50 ft (15.2 m) and a deck 30 ft wide.
Who owns Sth 79 over S Fk Hay River?
It is owned by the State Highway Agency.