Canyon Street over Spearfish Ck
FairLawrence County, South Dakota · Canyon ST - Spearfish · Structure no. 000000041095085
- Built
- 1992
- 33 years old
- Condition
- Fair
- inspected October 2023
- Type
- Box Beam or Girders - Multiple
- Wood or Timber
- Length
- 65 ft
- 1 main span
- Daily traffic
- 1,664
- 2022 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Canyon Street over Spearfish Ck is a wood or timber box beam or girders - multiple carrying Canyon Street over Spearfish Ck in Lawrence County, South Dakota. It was built in 1992, so it is 33 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 1,664 vehicles a day, roughly 5% of them trucks, projected to reach 1,664 by 2035. The structure is 65 ft (19.8 m) long and 38 ft wide. If it were closed, the detour would be 1.2 mi (2 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 Canyon Street over Spearfish Ck built?
It was built in 1992, making it 33 years old in 2025.
What condition is Canyon Street over Spearfish 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 October 2023.
How much traffic does Canyon Street over Spearfish Ck carry?
About 1,664 vehicles per day (2022 count), of which roughly 5% are trucks.
How long is Canyon Street over Spearfish Ck?
The structure is 65 ft (19.8 m) long with a longest span of 63 ft (19.2 m) and a deck 38 ft wide.
Who owns Canyon Street over Spearfish Ck?
It is owned by the City or Municipal Highway Agency.