SD020 over Valley Ck
GoodHarding County, South Dakota · 5.0 E Montana State Line · Structure no. 000000032051277
- Built
- 2021
- 4 years old
- Condition
- Good
- inspected December 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 154 ft
- 2 main spans
- Daily traffic
- 112
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
SD020 over Valley Ck is a prestressed concrete stringer/multi-beam or girder carrying SD020 over Valley Ck in Harding County, South Dakota. It was built in 2021, so it is 4 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 112 vehicles a day, roughly 11% of them trucks, projected to reach 147 by 2044. The structure is 154 ft (46.9 m) long and 35 ft wide. If it were closed, the detour would be 98.8 mi (159 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SD020 over Valley Ck built?
It was built in 2021, making it 4 years old in 2025.
What condition is SD020 over Valley 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 December 2023.
How much traffic does SD020 over Valley Ck carry?
About 112 vehicles per day (2024 count), of which roughly 11% are trucks.
How long is SD020 over Valley Ck?
The structure is 154 ft (46.9 m) long with a longest span of 75 ft (23 m) and a deck 35 ft wide.
Who owns SD020 over Valley Ck?
It is owned by the State Highway Agency.