SD011 over Nine Mile Ck
FairLincoln County, South Dakota · 6 S Minnehaha CO Line · Structure no. 000000042140063
- Built
- 1963
- 62 years old
- Condition
- Fair
- inspected August 2024
- Type
- Slab
- Concrete Continuous
- Length
- 119 ft
- 3 main spans
- Daily traffic
- 3,042
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
SD011 over Nine Mile Ck is a concrete continuous slab carrying SD011 over Nine Mile Ck in Lincoln County, South Dakota. It was built in 1963, so it is 62 years old, older than the South Dakota average of 48.9 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 3,042 vehicles a day, roughly 5% of them trucks, projected to reach 5,150 by 2044. The structure is 119 ft (36.4 m) long and 34 ft wide. If it were closed, the detour would be 9.9 mi (16 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SD011 over Nine Mile Ck built?
It was built in 1963, making it 62 years old in 2025.
What condition is SD011 over Nine Mile Ck in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2024.
How much traffic does SD011 over Nine Mile Ck carry?
About 3,042 vehicles per day (2024 count), of which roughly 5% are trucks.
How long is SD011 over Nine Mile Ck?
The structure is 119 ft (36.4 m) long with a longest span of 42 ft (12.9 m) and a deck 34 ft wide.
Who owns SD011 over Nine Mile Ck?
It is owned by the State Highway Agency.