US 550 Ml over Gulch B
GoodLa Plata County, Colorado · 0.3 MI S of US160 · Structure no. P-05-BA
- Built
- 2023
- 2 years old
- Condition
- Good
- inspected December 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 250 ft
- 2 main spans
- Daily traffic
- 7,800
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
US 550 Ml over Gulch B is a prestressed concrete continuous stringer/multi-beam or girder carrying US 550 Ml over Gulch B in La Plata County, Colorado. It was built in 2023, so it is 2 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. Its operating status is: new structure not yet open to traffic.
It carries about 7,800 vehicles a day, projected to reach 9,430 by 2042. The structure is 250 ft (76.2 m) long and 85 ft wide. If it were closed, the detour would be 98.8 mi (159 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 | 7 Good | Some minor problems. |
| 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 Gulch B built?
It was built in 2023, making it 2 years old in 2025.
What condition is US 550 Ml over Gulch B 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 December 2023.
How much traffic does US 550 Ml over Gulch B carry?
About 7,800 vehicles per day (2022 count).
How long is US 550 Ml over Gulch B?
The structure is 250 ft (76.2 m) long with a longest span of 135 ft (41 m) and a deck 85 ft wide.
Who owns US 550 Ml over Gulch B?
It is owned by the State Highway Agency.