US 285 Ml over South Platte Rvr Rdwy
FairArapahoe County, Colorado · In Sheridan · Structure no. F-16-ES
- Built
- 1960
- 65 years old, rebuilt 1985
- Condition
- Fair
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 411 ft
- 6 main spans
- Daily traffic
- 67,000
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
US 285 Ml over South Platte Rvr Rdwy is a prestressed concrete continuous stringer/multi-beam or girder carrying US 285 Ml over South Platte Rvr Rdwy in Arapahoe County, Colorado. It was built in 1960 and reconstructed in 1985, 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 67,000 vehicles a day, roughly 2% of them trucks, projected to reach 77,050 by 2040. The structure is 411 ft (125.3 m) long and 84 ft wide. If it were closed, the detour would be 0.6 mi (1 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 South Platte Rvr Rdwy built?
It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1985.
What condition is US 285 Ml over South Platte Rvr Rdwy 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 June 2023.
How much traffic does US 285 Ml over South Platte Rvr Rdwy carry?
About 67,000 vehicles per day (2020 count), of which roughly 2% are trucks.
How long is US 285 Ml over South Platte Rvr Rdwy?
The structure is 411 ft (125.3 m) long with a longest span of 75 ft (23 m) and a deck 84 ft wide.
Who owns US 285 Ml over South Platte Rvr Rdwy?
It is owned by the State Highway Agency.