Old HWY 85 over Spur Ck
FairPosted for loadButte County, South Dakota · 6 N 17.4 W Hoover · Structure no. 000000010213010
- Built
- 1936
- 89 years old
- Condition
- Fair
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 53 ft
- 2 main spans
- Daily traffic
- 21
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
Old HWY 85 over Spur Ck is a steel stringer/multi-beam or girder carrying Old HWY 85 over Spur Ck in Butte County, South Dakota. It was built in 1936, so it is 89 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.
It carries about 21 vehicles a day, roughly 2% of them trucks, projected to reach 30 by 2032. The structure is 53 ft (16.2 m) long and 23 ft wide. If it were closed, the detour would be 16.2 mi (26 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Old HWY 85 over Spur Ck built?
It was built in 1936, making it 89 years old in 2025.
What condition is Old HWY 85 over Spur Ck 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 Spur Ck carry?
About 21 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is Old HWY 85 over Spur Ck?
The structure is 53 ft (16.2 m) long with a longest span of 26 ft (7.9 m) and a deck 23 ft wide.
Who owns Old HWY 85 over Spur Ck?
It is owned by the County Highway Agency.