US016A over Iron Ck
GoodCuster County, South Dakota · 3.8 S Pennington CO Line · Structure no. 000000017328015
- Built
- 1992
- 33 years old
- Condition
- Good
- inspected April 2023
- Type
- Culvert
- Concrete Continuous
- Length
- 21 ft
- 2 main spans
- Daily traffic
- 625
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
US016A over Iron Ck is a concrete continuous culvert carrying US016A over Iron Ck in Custer County, South Dakota. It was built in 1992, so it is 33 years old, younger than the South Dakota average of 48.9 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 625 vehicles a day, roughly 4% of them trucks, projected to reach 1,019 by 2044. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 24.2 mi (39 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Channel and channel protection | 8 Very Good | No problems noted. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US016A over Iron Ck built?
It was built in 1992, making it 33 years old in 2025.
What condition is US016A over Iron Ck in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2023.
How much traffic does US016A over Iron Ck carry?
About 625 vehicles per day (2024 count), of which roughly 4% are trucks.
How long is US016A over Iron Ck?
The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3.1 m).
Who owns US016A over Iron Ck?
It is owned by the State Highway Agency.