SD1806 over Chantier Ck
FairStanley County, South Dakota · 25 NW JCT US 14 & Sd 34 · Structure no. 000000059234176
- Built
- 1970
- 55 years old, rebuilt 1990
- Condition
- Fair
- inspected April 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 53 ft
- 5 main spans
- Daily traffic
- 177
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
SD1806 over Chantier Ck is a concrete continuous culvert carrying SD1806 over Chantier Ck in Stanley County, South Dakota. It was built in 1970 and reconstructed in 1990, so it is 55 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 177 vehicles a day, roughly 20% of them trucks, projected to reach 256 by 2044. The structure is 53 ft (16.3 m) long. If it were closed, the detour would be 98.8 mi (159 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 |
|---|---|---|
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Culvert | 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 SD1806 over Chantier Ck built?
It was built in 1970, making it 55 years old in 2025. It was reconstructed in 1990.
What condition is SD1806 over Chantier 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 April 2024.
How much traffic does SD1806 over Chantier Ck carry?
About 177 vehicles per day (2024 count), of which roughly 20% are trucks.
How long is SD1806 over Chantier Ck?
The structure is 53 ft (16.3 m) long with a longest span of 10 ft (3 m).
Who owns SD1806 over Chantier Ck?
It is owned by the State Highway Agency.