SD025 over Roy Lk Inlet
FairMarshall County, South Dakota · 2.5 S JCT Sd 10 · Structure no. 000000046276174
- Built
- 1959
- 66 years old
- Condition
- Fair
- inspected July 2024
- Type
- Slab
- Concrete Continuous
- Length
- 106 ft
- 5 main spans
- Daily traffic
- 523
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
SD025 over Roy Lk Inlet is a concrete continuous slab carrying SD025 over Roy Lk Inlet in Marshall County, South Dakota. It was built in 1959, so it is 66 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 523 vehicles a day, roughly 14% of them trucks, projected to reach 615 by 2044. The structure is 106 ft (32.2 m) long and 34 ft wide. If it were closed, the detour would be 37.3 mi (60 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SD025 over Roy Lk Inlet built?
It was built in 1959, making it 66 years old in 2025.
What condition is SD025 over Roy Lk Inlet 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 July 2024.
How much traffic does SD025 over Roy Lk Inlet carry?
About 523 vehicles per day (2024 count), of which roughly 14% are trucks.
How long is SD025 over Roy Lk Inlet?
The structure is 106 ft (32.2 m) long with a longest span of 21 ft (6.3 m) and a deck 34 ft wide.
Who owns SD025 over Roy Lk Inlet?
It is owned by the State Highway Agency.