SD047 over Bull Ck
FairLyman County, South Dakota · 5.3 S JCT Sd 49 · Structure no. 000000043422370
- Built
- 1954
- 71 years old
- Condition
- Fair
- inspected January 2024
- Type
- Slab
- Concrete Continuous
- Length
- 209 ft
- 5 main spans
- Daily traffic
- 258
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
SD047 over Bull Ck is a concrete continuous slab carrying SD047 over Bull Ck in Lyman County, South Dakota. It was built in 1954, so it is 71 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 258 vehicles a day, roughly 24% of them trucks, projected to reach 365 by 2044. The structure is 209 ft (63.7 m) long and 34 ft wide. If it were closed, the detour would be 54.1 mi (87 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 SD047 over Bull Ck built?
It was built in 1954, making it 71 years old in 2025.
What condition is SD047 over Bull 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 January 2024.
How much traffic does SD047 over Bull Ck carry?
About 258 vehicles per day (2024 count), of which roughly 24% are trucks.
How long is SD047 over Bull Ck?
The structure is 209 ft (63.7 m) long with a longest span of 43 ft (13 m) and a deck 34 ft wide.
Who owns SD047 over Bull Ck?
It is owned by the State Highway Agency.