Lefthand Canyon DR over Lefthand Creek
GoodBoulder County, Colorado · 0.75 MI W of Lee Hill DR · Structure no. BC-106-7.3-LT
- Built
- 2019
- 6 years old
- Condition
- Good
- inspected February 2025
- Type
- Culvert
- Concrete
- Length
- 27 ft
- 1 main span
- Daily traffic
- 1,078
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
Lefthand Canyon DR over Lefthand Creek is a concrete culvert carrying Lefthand Canyon DR over Lefthand Creek in Boulder County, Colorado. It was built in 2019, so it is 6 years old, younger than the Colorado average of 42.2 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 1,078 vehicles a day, roughly 3% of them trucks, projected to reach 1,293 by 2043. The structure is 27 ft (8.1 m) long and 56 ft wide. If it were closed, the detour would be 3.7 mi (6 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Channel and channel protection | 8 Very Good | No problems noted. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Lefthand Canyon DR over Lefthand Creek built?
It was built in 2019, making it 6 years old in 2025.
What condition is Lefthand Canyon DR over Lefthand Creek in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2025.
How much traffic does Lefthand Canyon DR over Lefthand Creek carry?
About 1,078 vehicles per day (2023 count), of which roughly 3% are trucks.
How long is Lefthand Canyon DR over Lefthand Creek?
The structure is 27 ft (8.1 m) long with a longest span of 27 ft (8.1 m) and a deck 56 ft wide.
Who owns Lefthand Canyon DR over Lefthand Creek?
It is owned by the County Highway Agency.