Old Highway 79 over Antelope Hollow Ck
FairPosted for loadFall River County, South Dakota · 0.8S & 0.2E Oelrichs · Structure no. 000000024419212
- Built
- 1930
- 95 years old
- Condition
- Fair
- inspected May 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 32 ft
- 1 main span
- Daily traffic
- 100
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
Old Highway 79 over Antelope Hollow Ck is a steel stringer/multi-beam or girder carrying Old Highway 79 over Antelope Hollow Ck in Fall River County, South Dakota. It was built in 1930, so it is 95 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. Its operating status is: posted for load restriction.
It carries about 100 vehicles a day, roughly 2% of them trucks, projected to reach 100 by 2032. The structure is 32 ft (9.8 m) long and 20 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 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 Highway 79 over Antelope Hollow Ck built?
It was built in 1930, making it 95 years old in 2025.
What condition is Old Highway 79 over Antelope Hollow 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 May 2024.
How much traffic does Old Highway 79 over Antelope Hollow Ck carry?
About 100 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is Old Highway 79 over Antelope Hollow Ck?
The structure is 32 ft (9.8 m) long with a longest span of 31 ft (9.4 m) and a deck 20 ft wide.
Who owns Old Highway 79 over Antelope Hollow Ck?
It is owned by the County Highway Agency.