Old HWY 85 over South Fork Moreau Rv
FairButte County, South Dakota · 4.6 N 18.7 W Hoover · Structure no. 000000010199024
- Built
- 1955
- 70 years old
- Condition
- Fair
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 295 ft
- 7 main spans
- Daily traffic
- 21
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
Old HWY 85 over South Fork Moreau Rv is a steel stringer/multi-beam or girder carrying Old HWY 85 over South Fork Moreau Rv in Butte County, South Dakota. It was built in 1955, so it is 70 years old, older than the South Dakota average of 48.9 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 21 vehicles a day, roughly 2% of them trucks, projected to reach 30 by 2032. The structure is 295 ft (89.9 m) long and 32 ft wide. If it were closed, the detour would be 98.8 mi (159 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 Old HWY 85 over South Fork Moreau Rv built?
It was built in 1955, making it 70 years old in 2025.
What condition is Old HWY 85 over South Fork Moreau Rv 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 Old HWY 85 over South Fork Moreau Rv carry?
About 21 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is Old HWY 85 over South Fork Moreau Rv?
The structure is 295 ft (89.9 m) long with a longest span of 64 ft (19.5 m) and a deck 32 ft wide.
Who owns Old HWY 85 over South Fork Moreau Rv?
It is owned by the County Highway Agency.