US018 over Long Ck
FairLincoln County, South Dakota · 0.5 W JCT Sd 17 · Structure no. 000000042016170
- Built
- 1952
- 73 years old
- Condition
- Fair
- inspected September 2023
- Type
- Slab
- Concrete Continuous
- Length
- 129 ft
- 5 main spans
- Daily traffic
- 1,836
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
US018 over Long Ck is a concrete continuous slab carrying US018 over Long Ck in Lincoln County, South Dakota. It was built in 1952, so it is 73 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 1,836 vehicles a day, roughly 13% of them trucks, projected to reach 3,072 by 2044. The structure is 129 ft (39.2 m) long and 34 ft wide. If it were closed, the detour would be 42.3 mi (68 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 | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US018 over Long Ck built?
It was built in 1952, making it 73 years old in 2025.
What condition is US018 over Long 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 September 2023.
How much traffic does US018 over Long Ck carry?
About 1,836 vehicles per day (2024 count), of which roughly 13% are trucks.
How long is US018 over Long Ck?
The structure is 129 ft (39.2 m) long with a longest span of 26 ft (7.9 m) and a deck 34 ft wide.
Who owns US018 over Long Ck?
It is owned by the State Highway Agency.