SD011 over Split Rock Ck
FairMinnehaha County, South Dakota · 0.4 S of Garretson · Structure no. 000000050310093
- Built
- 1964
- 61 years old
- Condition
- Fair
- inspected October 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 255 ft
- 4 main spans
- Daily traffic
- 2,977
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
SD011 over Split Rock Ck is a prestressed concrete stringer/multi-beam or girder carrying SD011 over Split Rock Ck in Minnehaha County, South Dakota. It was built in 1964, so it is 61 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 2,977 vehicles a day, roughly 10% of them trucks, projected to reach 4,611 by 2044. The structure is 255 ft (77.7 m) long and 32 ft wide.
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 | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SD011 over Split Rock Ck built?
It was built in 1964, making it 61 years old in 2025.
What condition is SD011 over Split Rock 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 October 2024.
How much traffic does SD011 over Split Rock Ck carry?
About 2,977 vehicles per day (2024 count), of which roughly 10% are trucks.
How long is SD011 over Split Rock Ck?
The structure is 255 ft (77.7 m) long with a longest span of 68 ft (20.6 m) and a deck 32 ft wide.
Who owns SD011 over Split Rock Ck?
It is owned by the State Highway Agency.