IRR SD046 over Dry Choteau Ck
FairBon Homme County, South Dakota · West CO Line · Structure no. 000000005030060
- Built
- 1964
- 61 years old
- Condition
- Fair
- inspected August 2024
- Type
- Slab
- Concrete Continuous
- Length
- 99 ft
- 3 main spans
- Daily traffic
- 714
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
IRR SD046 over Dry Choteau Ck is a concrete continuous slab carrying IRR SD046 over Dry Choteau Ck in Bon Homme 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 5 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 714 vehicles a day, roughly 14% of them trucks, projected to reach 1,030 by 2044. The structure is 99 ft (30.3 m) long and 34 ft wide. If it were closed, the detour would be 16.2 mi (26 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was IRR SD046 over Dry Choteau Ck built?
It was built in 1964, making it 61 years old in 2025.
What condition is IRR SD046 over Dry Choteau 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 August 2024.
How much traffic does IRR SD046 over Dry Choteau Ck carry?
About 714 vehicles per day (2024 count), of which roughly 14% are trucks.
How long is IRR SD046 over Dry Choteau Ck?
The structure is 99 ft (30.3 m) long with a longest span of 35 ft (10.8 m) and a deck 34 ft wide.
Who owns IRR SD046 over Dry Choteau Ck?
It is owned by the State Highway Agency.