239th Street over Medicine Creek
GoodLyman County, South Dakota · 1E & 0.5N of Vivian · Structure no. 000000043048180
- Built
- 1986
- 39 years old
- Condition
- Good
- inspected July 2024
- Type
- Slab
- Concrete Continuous
- Length
- 113 ft
- 3 main spans
- Daily traffic
- 15
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
239th Street over Medicine Creek is a concrete continuous slab carrying 239th Street over Medicine Creek in Lyman County, South Dakota. It was built in 1986, so it is 39 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 15 vehicles a day, roughly 2% of them trucks, projected to reach 15 by 2032. The structure is 113 ft (34.4 m) long and 31 ft wide. If it were closed, the detour would be 9.9 mi (16 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 239th Street over Medicine Creek built?
It was built in 1986, making it 39 years old in 2025.
What condition is 239th Street over Medicine Creek 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 July 2024.
How much traffic does 239th Street over Medicine Creek carry?
About 15 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is 239th Street over Medicine Creek?
The structure is 113 ft (34.4 m) long with a longest span of 43 ft (13 m) and a deck 31 ft wide.
Who owns 239th Street over Medicine Creek?
It is owned by the County Highway Agency.