Airport Road over St. Vrain River
GoodBoulder County, Colorado · 600 Ft. S of 9th Ave. · Structure no. LONG-AIRRD_9TH
- Built
- 2006
- 19 years old
- Condition
- Good
- inspected January 2025
- Type
- Box Beam or Girders - Single or Spread
- Prestressed Concrete Continuous
- Length
- 221 ft
- 3 main spans
- Daily traffic
- 13,131
- 2023 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Airport Road over St. Vrain River is a prestressed concrete continuous box beam or girders - single or spread carrying Airport Road over St. Vrain River in Boulder County, Colorado. It was built in 2006, so it is 19 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 13,131 vehicles a day, roughly 3% of them trucks, projected to reach 15,757 by 2043. The structure is 221 ft (67.5 m) long and 90 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Airport Road over St. Vrain River built?
It was built in 2006, making it 19 years old in 2025.
What condition is Airport Road over St. Vrain River 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 Airport Road over St. Vrain River carry?
About 13,131 vehicles per day (2023 count), of which roughly 3% are trucks.
How long is Airport Road over St. Vrain River?
The structure is 221 ft (67.5 m) long with a longest span of 79 ft (24.1 m) and a deck 90 ft wide.
Who owns Airport Road over St. Vrain River?
It is owned by the City or Municipal Highway Agency.