321 Avenue over Chapelle Ck
PoorPosted for loadHughes County, South Dakota · 0.3W & 10.17S Harrold · Structure no. 000000033410112
- Built
- 1963
- 62 years old
- Condition
- Poor
- inspected June 2024
- Type
- Channel Beam
- Concrete
- Length
- 72 ft
- 2 main spans
- Daily traffic
- 99
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
321 Avenue over Chapelle Ck is a concrete channel beam carrying 321 Avenue over Chapelle Ck in Hughes 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 poor condition with a lowest component rating of 3 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. Its operating status is: posted for load restriction.
It carries about 99 vehicles a day, roughly 10% of them trucks, projected to reach 99 by 2032. The structure is 72 ft (21.9 m) long and 32 ft wide. If it were closed, the detour would be 6.2 mi (10 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| 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 321 Avenue over Chapelle Ck built?
It was built in 1963, making it 62 years old in 2025.
What condition is 321 Avenue over Chapelle Ck 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 June 2024.
How much traffic does 321 Avenue over Chapelle Ck carry?
About 99 vehicles per day (2022 count), of which roughly 10% are trucks.
How long is 321 Avenue over Chapelle Ck?
The structure is 72 ft (21.9 m) long with a longest span of 36 ft (11 m) and a deck 32 ft wide.
Who owns 321 Avenue over Chapelle Ck?
It is owned by the County Highway Agency.