SD115 over Trib Nine Mile Ck
GoodLincoln County, South Dakota · 1.5W & 1.2N Harrisburg · Structure no. 000000042100038
- Built
- 2019
- 6 years old
- Condition
- Good
- inspected November 2021
- Type
- Culvert
- Concrete Continuous
- Length
- 21 ft
- 2 main spans
- Daily traffic
- 6,280
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
SD115 over Trib Nine Mile Ck is a concrete continuous culvert carrying SD115 over Trib Nine Mile Ck in Lincoln County, South Dakota. It was built in 2019, so it is 6 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 6,280 vehicles a day, roughly 5% of them trucks, projected to reach 16,611 by 2043. The structure is 21 ft (6.4 m) long.
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 SD115 over Trib Nine Mile Ck built?
It was built in 2019, making it 6 years old in 2025.
What condition is SD115 over Trib Nine Mile 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 2021.
How much traffic does SD115 over Trib Nine Mile Ck carry?
About 6,280 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is SD115 over Trib Nine Mile Ck?
The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3.1 m).
Who owns SD115 over Trib Nine Mile Ck?
It is owned by the State Highway Agency.