Quincy Ave over SH 470 Ml
FairJefferson County, Colorado · 0.5 MI SE of SH470+US285 · Structure no. F-16-NE
- Built
- 1989
- 36 years old
- Condition
- Fair
- inspected January 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 295 ft
- 2 main spans
- Daily traffic
- 8,569
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Quincy Ave over SH 470 Ml is a prestressed concrete continuous box beam or girders - multiple carrying Quincy Ave over SH 470 Ml in Jefferson County, Colorado. It was built in 1989, so it is 36 years old, younger 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 6 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 8,569 vehicles a day, roughly 3% of them trucks, projected to reach 9,854 by 2044. The structure is 295 ft (89.8 m) long and 89 ft wide. If it were closed, the detour would be 19.9 mi (32 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Quincy Ave over SH 470 Ml built?
It was built in 1989, making it 36 years old in 2025.
What condition is Quincy Ave over SH 470 Ml 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 January 2024.
How much traffic does Quincy Ave over SH 470 Ml carry?
About 8,569 vehicles per day (2024 count), of which roughly 3% are trucks.
How long is Quincy Ave over SH 470 Ml?
The structure is 295 ft (89.8 m) long with a longest span of 151 ft (46 m) and a deck 89 ft wide.
Who owns Quincy Ave over SH 470 Ml?
It is owned by the State Highway Agency.