SD046 over Clay Ck
GoodYankton County, South Dakota · 4.7 E JCT US 81 · Structure no. 000000068168060
- Built
- 2023
- 2 years old
- Condition
- Good
- inspected November 2023
- Type
- Culvert
- Concrete
- Length
- 42 ft
- 3 main spans
- Daily traffic
- 1,437
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
SD046 over Clay Ck is a concrete culvert carrying SD046 over Clay Ck in Yankton County, South Dakota. It was built in 2023, so it is 2 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 1,437 vehicles a day, roughly 17% of them trucks, projected to reach 2,161 by 2044. The structure is 42 ft (12.7 m) long and 40 ft wide. If it were closed, the detour would be 6.2 mi (10 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 | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SD046 over Clay Ck built?
It was built in 2023, making it 2 years old in 2025.
What condition is SD046 over Clay 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 November 2023.
How much traffic does SD046 over Clay Ck carry?
About 1,437 vehicles per day (2024 count), of which roughly 17% are trucks.
How long is SD046 over Clay Ck?
The structure is 42 ft (12.7 m) long with a longest span of 13 ft (4 m) and a deck 40 ft wide.
Who owns SD046 over Clay Ck?
It is owned by the State Highway Agency.