Hidden Timber Road over Antelope Ck
PoorPosted for loadTodd County, South Dakota · 9 E 3.8 S Mission · Structure no. 000000061390096
- Built
- 1951
- 74 years old
- Condition
- Poor
- inspected June 2023
- Type
- Slab
- Concrete Continuous
- Length
- 93 ft
- 3 main spans
- Daily traffic
- 128
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
Hidden Timber Road over Antelope Ck is a concrete continuous slab carrying Hidden Timber Road over Antelope Ck in Todd County, South Dakota. It was built in 1951, so it is 74 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.
It carries about 128 vehicles a day, roughly 3% of them trucks, projected to reach 128 by 2032. The structure is 93 ft (28.3 m) long and 28 ft wide. If it were closed, the detour would be 14.3 mi (23 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 4 Poor | Advanced section loss, deterioration, 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Hidden Timber Road over Antelope Ck built?
It was built in 1951, making it 74 years old in 2025.
What condition is Hidden Timber Road over Antelope Ck in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2023.
How much traffic does Hidden Timber Road over Antelope Ck carry?
About 128 vehicles per day (2022 count), of which roughly 3% are trucks.
How long is Hidden Timber Road over Antelope Ck?
The structure is 93 ft (28.3 m) long with a longest span of 35 ft (10.7 m) and a deck 28 ft wide.
Who owns Hidden Timber Road over Antelope Ck?
It is owned by the County Highway Agency.