US 285 Ml over Conifer Road
GoodJefferson County, Colorado · 2 MI NE of Conifer · Structure no. F-15-DG
- Built
- 2002
- 23 years old
- Condition
- Good
- inspected August 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 74 ft
- 1 main span
- Daily traffic
- 23,000
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
US 285 Ml over Conifer Road is a prestressed concrete box beam or girders - multiple carrying US 285 Ml over Conifer Road in Jefferson County, Colorado. It was built in 2002, so it is 23 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 23,000 vehicles a day, roughly 4% of them trucks, projected to reach 27,140 by 2040. The structure is 74 ft (22.7 m) long and 116 ft wide. If it were closed, the detour would be 23 mi (37 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. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 285 Ml over Conifer Road built?
It was built in 2002, making it 23 years old in 2025.
What condition is US 285 Ml over Conifer Road 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 August 2023.
How much traffic does US 285 Ml over Conifer Road carry?
About 23,000 vehicles per day (2020 count), of which roughly 4% are trucks.
How long is US 285 Ml over Conifer Road?
The structure is 74 ft (22.7 m) long with a longest span of 72 ft (21.9 m) and a deck 116 ft wide.
Who owns US 285 Ml over Conifer Road?
It is owned by the State Highway Agency.