Colorado Blvd over False Bottom Ck
FairLawrence County, South Dakota · 2.4E JCT US14A -Spearfish · Structure no. 000000041126089
- Built
- 1978
- 47 years old
- Condition
- Fair
- inspected October 2023
- Type
- Slab
- Concrete Continuous
- Length
- 93 ft
- 3 main spans
- Daily traffic
- 1,500
- 2022 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Colorado Blvd over False Bottom Ck is a concrete continuous slab carrying Colorado Blvd over False Bottom Ck in Lawrence County, South Dakota. It was built in 1978, so it is 47 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 1,500 vehicles a day, roughly 2% of them trucks, projected to reach 1,500 by 2035. The structure is 93 ft (28.3 m) long and 35 ft wide. If it were closed, the detour would be 5 mi (8 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 | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Colorado Blvd over False Bottom Ck built?
It was built in 1978, making it 47 years old in 2025.
What condition is Colorado Blvd over False Bottom 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 Colorado Blvd over False Bottom Ck carry?
About 1,500 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is Colorado Blvd over False Bottom Ck?
The structure is 93 ft (28.3 m) long with a longest span of 30 ft (9.1 m) and a deck 35 ft wide.
Who owns Colorado Blvd over False Bottom Ck?
It is owned by the City or Municipal Highway Agency.