Four Corners Road over Cheyenne Rv
PoorPosted for loadHaakon County, South Dakota · 15.7W 4.4N Milesvill · Structure no. 000000028003156
- Built
- 1930
- 95 years old
- Condition
- Poor
- inspected September 2024
- Type
- Truss - Thru
- Steel
- Length
- 1,520 ft
- 10 main spans
- Daily traffic
- 45
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
Four Corners Road over Cheyenne Rv is a steel truss - thru carrying Four Corners Road over Cheyenne Rv in Haakon 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 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. Its operating status is: posted for load restriction.
It carries about 45 vehicles a day, roughly 2% of them trucks, projected to reach 45 by 2032. The structure is 1,520 ft (463.3 m) long and 19 ft wide. If it were closed, the detour would be 60.3 mi (97 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| 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 | 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 Four Corners Road over Cheyenne Rv built?
It was built in 1930, making it 95 years old in 2025.
What condition is Four Corners Road over Cheyenne Rv 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 September 2024.
How much traffic does Four Corners Road over Cheyenne Rv carry?
About 45 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is Four Corners Road over Cheyenne Rv?
The structure is 1,520 ft (463.3 m) long with a longest span of 151 ft (46 m) and a deck 19 ft wide.
Who owns Four Corners Road over Cheyenne Rv?
It is owned by the County Highway Agency.