Arapahoe Avenue over Boulder Creek
GoodBoulder County, Colorado · 0.08 MI E of S. Broadway · Structure no. BOLD-16-0.08-1A
- Built
- 1988
- 37 years old
- Condition
- Good
- inspected February 2025
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 89 ft
- 1 main span
- Daily traffic
- 10,452
- 2023 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Arapahoe Avenue over Boulder Creek is a prestressed concrete box beam or girders - multiple carrying Arapahoe Avenue over Boulder Creek in Boulder County, Colorado. It was built in 1988, so it is 37 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 10,452 vehicles a day, roughly 2% of them trucks, projected to reach 12,543 by 2043. The structure is 89 ft (27.1 m) long and 61 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 | 8 Very Good | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Arapahoe Avenue over Boulder Creek built?
It was built in 1988, making it 37 years old in 2025.
What condition is Arapahoe Avenue over Boulder 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 Arapahoe Avenue over Boulder Creek carry?
About 10,452 vehicles per day (2023 count), of which roughly 2% are trucks.
How long is Arapahoe Avenue over Boulder Creek?
The structure is 89 ft (27.1 m) long with a longest span of 84 ft (25.6 m) and a deck 61 ft wide.
Who owns Arapahoe Avenue over Boulder Creek?
It is owned by the City or Municipal Highway Agency.