US018 over Cheyenne Rv
FairFall River County, South Dakota · At Edgemont · Structure no. 000000024114117
- Built
- 1979
- 46 years old
- Condition
- Fair
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 716 ft
- 5 main spans
- Daily traffic
- 2,568
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
US018 over Cheyenne Rv is a steel continuous stringer/multi-beam or girder carrying US018 over Cheyenne Rv in Fall River County, South Dakota. It was built in 1979, so it is 46 years old, younger 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 6 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 2,568 vehicles a day, roughly 17% of them trucks, projected to reach 3,816 by 2044. The structure is 716 ft (218.1 m) long and 47 ft wide.
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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US018 over Cheyenne Rv built?
It was built in 1979, making it 46 years old in 2025.
What condition is US018 over Cheyenne Rv 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 US018 over Cheyenne Rv carry?
About 2,568 vehicles per day (2024 count), of which roughly 17% are trucks.
How long is US018 over Cheyenne Rv?
The structure is 716 ft (218.1 m) long with a longest span of 155 ft (47.2 m) and a deck 47 ft wide.
Who owns US018 over Cheyenne Rv?
It is owned by the State Highway Agency.