Four Corners Road over Ck
PoorPosted for loadZiebach County, South Dakota · 4.0W 0.9S Bridger · Structure no. 000000069001649
- Built
- 1930
- 95 years old
- Condition
- Poor
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 62 ft
- 2 main spans
- Daily traffic
- 16
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
Four Corners Road over Ck is a steel stringer/multi-beam or girder carrying Four Corners Road over Ck in Ziebach County, South Dakota. It was built in 1930, 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 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 16 vehicles a day, roughly 2% of them trucks, projected to reach 16 by 2032. The structure is 62 ft (18.9 m) long and 23 ft wide. If it were closed, the detour would be 19.9 mi (32 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 | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 4 Poor | Advanced section loss, deterioration, 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 Four Corners Road over Ck built?
It was built in 1930, making it 95 years old in 2025.
What condition is Four Corners Road over 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 July 2024.
How much traffic does Four Corners Road over Ck carry?
About 16 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is Four Corners Road over Ck?
The structure is 62 ft (18.9 m) long with a longest span of 28 ft (8.5 m) and a deck 23 ft wide.
Who owns Four Corners Road over Ck?
It is owned by the County Highway Agency.