US 550 Ml over Uncomphagre River
GoodOuray County, Colorado · 8 MI of SH62-RIDGWAY · Structure no. K-05-BS
- Built
- 1989
- 36 years old
- Condition
- Good
- inspected June 2021
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 166 ft
- 2 main spans
- Daily traffic
- 8,300
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
US 550 Ml over Uncomphagre River is a prestressed concrete continuous stringer/multi-beam or girder carrying US 550 Ml over Uncomphagre River in Ouray 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 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 8,300 vehicles a day, roughly 6% of them trucks, projected to reach 9,794 by 2040. The structure is 166 ft (50.7 m) long and 47 ft wide. If it were closed, the detour would be 123.7 mi (199 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 550 Ml over Uncomphagre River built?
It was built in 1989, making it 36 years old in 2025.
What condition is US 550 Ml over Uncomphagre River 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 June 2021.
How much traffic does US 550 Ml over Uncomphagre River carry?
About 8,300 vehicles per day (2020 count), of which roughly 6% are trucks.
How long is US 550 Ml over Uncomphagre River?
The structure is 166 ft (50.7 m) long with a longest span of 81 ft (24.7 m) and a deck 47 ft wide.
Who owns US 550 Ml over Uncomphagre River?
It is owned by the State Highway Agency.