SD011 over Drainage Ditch
FairUnion County, South Dakota · 1.9 S JCT Sd 50 · Structure no. 000000064060241
- Built
- 1983
- 42 years old
- Condition
- Fair
- inspected November 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 70 ft
- 1 main span
- Daily traffic
- 776
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
SD011 over Drainage Ditch is a steel stringer/multi-beam or girder carrying SD011 over Drainage Ditch in Union County, South Dakota. It was built in 1983, so it is 42 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 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 776 vehicles a day, roughly 18% of them trucks, projected to reach 1,195 by 2044. The structure is 70 ft (21.4 m) long and 39 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 SD011 over Drainage Ditch built?
It was built in 1983, making it 42 years old in 2025.
What condition is SD011 over Drainage Ditch 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 November 2024.
How much traffic does SD011 over Drainage Ditch carry?
About 776 vehicles per day (2024 count), of which roughly 18% are trucks.
How long is SD011 over Drainage Ditch?
The structure is 70 ft (21.4 m) long with a longest span of 68 ft (20.7 m) and a deck 39 ft wide.
Who owns SD011 over Drainage Ditch?
It is owned by the State Highway Agency.