SD073 over Thunder Butte Ck
GoodPerkins County, South Dakota · 4.7 S JCT Sd 20 E · Structure no. 000000053383397
- Built
- 2005
- 20 years old
- Condition
- Good
- inspected June 2021
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 129 ft
- 2 main spans
- Daily traffic
- 423
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
SD073 over Thunder Butte Ck is a prestressed concrete continuous stringer/multi-beam or girder carrying SD073 over Thunder Butte Ck in Perkins County, South Dakota. It was built in 2005, so it is 20 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 423 vehicles a day, roughly 40% of them trucks, projected to reach 632 by 2044. The structure is 129 ft (39.3 m) long and 35 ft wide. If it were closed, the detour would be 57.8 mi (93 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 | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SD073 over Thunder Butte Ck built?
It was built in 2005, making it 20 years old in 2025.
What condition is SD073 over Thunder Butte 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 Thunder Butte Ck carry?
About 423 vehicles per day (2024 count), of which roughly 40% are trucks.
How long is SD073 over Thunder Butte Ck?
The structure is 129 ft (39.3 m) long with a longest span of 60 ft (18.2 m) and a deck 35 ft wide.
Who owns SD073 over Thunder Butte Ck?
It is owned by the State Highway Agency.