SD073 over Flat Ck
GoodPerkins County, South Dakota · 1 N of Shadehill · Structure no. 000000053380119
- Built
- 1995
- 30 years old
- Condition
- Good
- inspected June 2021
- Type
- Slab
- Concrete Continuous
- Length
- 116 ft
- 3 main spans
- Daily traffic
- 663
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
SD073 over Flat Ck is a concrete continuous slab carrying SD073 over Flat Ck in Perkins County, South Dakota. It was built in 1995, so it is 30 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 663 vehicles a day, roughly 23% of them trucks, projected to reach 991 by 2044. The structure is 116 ft (35.4 m) long and 39 ft wide. If it were closed, the detour would be 90.1 mi (145 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 |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SD073 over Flat Ck built?
It was built in 1995, making it 30 years old in 2025.
What condition is SD073 over Flat 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 June 2021.
How much traffic does SD073 over Flat Ck carry?
About 663 vehicles per day (2024 count), of which roughly 23% are trucks.
How long is SD073 over Flat Ck?
The structure is 116 ft (35.4 m) long with a longest span of 41 ft (12.6 m) and a deck 39 ft wide.
Who owns SD073 over Flat Ck?
It is owned by the State Highway Agency.