Birch Avenue over Happy Canyon Creek
GoodDouglas County, Colorado · Just West of 3rd ST · Structure no. DOU08B-00.40
- Built
- 1989
- 36 years old
- Condition
- Good
- inspected January 2025
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 70 ft
- 2 main spans
- Daily traffic
- 316
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
Birch Avenue over Happy Canyon Creek is a steel continuous stringer/multi-beam or girder carrying Birch Avenue over Happy Canyon Creek in Douglas County, Colorado. It was built in 1989, so it is 36 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 316 vehicles a day, roughly 4% of them trucks, projected to reach 424 by 2041. The structure is 70 ft (21.3 m) long and 21 ft wide. If it were closed, the detour would be 1.2 mi (2 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 |
|---|---|---|
| Deck | 8 Very Good | No problems noted. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 9 Excellent | No problems noted. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Birch Avenue over Happy Canyon Creek built?
It was built in 1989, making it 36 years old in 2025.
What condition is Birch Avenue over Happy Canyon 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 January 2025.
How much traffic does Birch Avenue over Happy Canyon Creek carry?
About 316 vehicles per day (2021 count), of which roughly 4% are trucks.
How long is Birch Avenue over Happy Canyon Creek?
The structure is 70 ft (21.3 m) long with a longest span of 31 ft (9.6 m) and a deck 21 ft wide.
Who owns Birch Avenue over Happy Canyon Creek?
It is owned by the County Highway Agency.