US 285 Ml over Rock Creek
GoodAlamosa County, Colorado · 3 MI S of Alamosa · Structure no. O-13-I
- Built
- 1960
- 65 years old
- Condition
- Good
- inspected July 2023
- Type
- Culvert
- Concrete
- Length
- 28 ft
- 2 main spans
- Daily traffic
- 5,900
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
US 285 Ml over Rock Creek is a concrete culvert carrying US 285 Ml over Rock Creek in Alamosa County, Colorado. It was built in 1960, so it is 65 years old, older 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 5,900 vehicles a day, roughly 5% of them trucks, projected to reach 6,254 by 2040. The structure is 28 ft (8.5 m) long and 143 ft wide. If it were closed, the detour would be 0.6 mi (1 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 | 7 Good | Some minor problems. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 285 Ml over Rock Creek built?
It was built in 1960, making it 65 years old in 2025.
What condition is US 285 Ml over Rock 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 July 2023.
How much traffic does US 285 Ml over Rock Creek carry?
About 5,900 vehicles per day (2020 count), of which roughly 5% are trucks.
How long is US 285 Ml over Rock Creek?
The structure is 28 ft (8.5 m) long with a longest span of 10 ft (3 m) and a deck 143 ft wide.
Who owns US 285 Ml over Rock Creek?
It is owned by the State Highway Agency.