161st Street over Drainage Ditch
FairPosted for loadSpink County, South Dakota · 2.4W Turton · Structure no. 000000058276130
- Built
- 1930
- 95 years old, rebuilt 1950
- Condition
- Fair
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 30 ft
- 1 main span
- Daily traffic
- 169
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
161st Street over Drainage Ditch is a steel stringer/multi-beam or girder carrying 161st Street over Drainage Ditch in Spink County, South Dakota. It was built in 1930 and reconstructed in 1950, so it is 95 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.
It carries about 169 vehicles a day, roughly 3% of them trucks, projected to reach 169 by 2032. The structure is 30 ft (9.1 m) long and 29 ft wide. If it were closed, the detour would be 11.8 mi (19 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 161st Street over Drainage Ditch built?
It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1950.
What condition is 161st Street 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 June 2023.
How much traffic does 161st Street over Drainage Ditch carry?
About 169 vehicles per day (2022 count), of which roughly 3% are trucks.
How long is 161st Street over Drainage Ditch?
The structure is 30 ft (9.1 m) long with a longest span of 29 ft (8.8 m) and a deck 29 ft wide.
Who owns 161st Street over Drainage Ditch?
It is owned by the County Highway Agency.