301 Avenue over Okobojo Creek
PoorSully County, South Dakota · 3W & 3.4N Onida · Structure no. 000000060280096
- Built
- 1961
- 64 years old
- Condition
- Poor
- inspected July 2023
- Type
- Channel Beam
- Concrete
- Length
- 62 ft
- 2 main spans
- Daily traffic
- 20
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
301 Avenue over Okobojo Creek is a concrete channel beam carrying 301 Avenue over Okobojo Creek in Sully County, South Dakota. It was built in 1961, so it is 64 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 20 vehicles a day, roughly 2% of them trucks, projected to reach 50 by 2032. The structure is 62 ft (18.9 m) long and 26 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 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 4 Poor | Advanced section loss, deterioration, 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 301 Avenue over Okobojo Creek built?
It was built in 1961, making it 64 years old in 2025.
What condition is 301 Avenue over Okobojo Creek in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2023.
How much traffic does 301 Avenue over Okobojo Creek carry?
About 20 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is 301 Avenue over Okobojo Creek?
The structure is 62 ft (18.9 m) long with a longest span of 30 ft (9.1 m) and a deck 26 ft wide.
Who owns 301 Avenue over Okobojo Creek?
It is owned by the County Highway Agency.