US 285 Ml over Highline Canal
FairArapahoe County, Colorado · Hampden/Wellshire G.C. · Structure no. F-17-CF
- Built
- 1960
- 65 years old
- Condition
- Fair
- inspected March 2023
- Type
- Tee Beam
- Concrete
- Length
- 49 ft
- 1 main span
- Daily traffic
- 52,000
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
US 285 Ml over Highline Canal is a concrete tee beam carrying US 285 Ml over Highline Canal in Arapahoe 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 fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 52,000 vehicles a day, roughly 3% of them trucks, projected to reach 56,680 by 2040. The structure is 49 ft (14.9 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
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 285 Ml over Highline Canal built?
It was built in 1960, making it 65 years old in 2025.
What condition is US 285 Ml over Highline Canal in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in March 2023.
How much traffic does US 285 Ml over Highline Canal carry?
About 52,000 vehicles per day (2020 count), of which roughly 3% are trucks.
How long is US 285 Ml over Highline Canal?
The structure is 49 ft (14.9 m) long with a longest span of 46 ft (14 m) and a deck 90 ft wide.
Who owns US 285 Ml over Highline Canal?
It is owned by the State Highway Agency.