US018 over Horsehead Ck
FairFall River County, South Dakota · 0.6 E JCT US 385 S · Structure no. 000000024421200
- Built
- 1953
- 72 years old
- Condition
- Fair
- inspected April 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 163 ft
- 3 main spans
- Daily traffic
- 598
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
US018 over Horsehead Ck is a steel stringer/multi-beam or girder carrying US018 over Horsehead Ck in Fall River County, South Dakota. It was built in 1953, so it is 72 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 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 598 vehicles a day, roughly 24% of them trucks, projected to reach 889 by 2044. The structure is 163 ft (49.8 m) long and 32 ft wide. 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 |
|---|---|---|
| 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 Horsehead Ck built?
It was built in 1953, making it 72 years old in 2025.
What condition is US018 over Horsehead 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 2023.
How much traffic does US018 over Horsehead Ck carry?
About 598 vehicles per day (2024 count), of which roughly 24% are trucks.
How long is US018 over Horsehead Ck?
The structure is 163 ft (49.8 m) long with a longest span of 53 ft (16.1 m) and a deck 32 ft wide.
Who owns US018 over Horsehead Ck?
It is owned by the State Highway Agency.