US 350 Ml over Blackwell Arroyo
GoodLas Animas County, Colorado · 10.2 Miles from JCT 160 · Structure no. O-19-F
- Built
- 2015
- 10 years old
- Condition
- Good
- inspected December 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 73 ft
- 1 main span
- Daily traffic
- 710
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
US 350 Ml over Blackwell Arroyo is a prestressed concrete stringer/multi-beam or girder carrying US 350 Ml over Blackwell Arroyo in Las Animas County, Colorado. It was built in 2015, so it is 10 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 710 vehicles a day, roughly 11% of them trucks, projected to reach 973 by 2040. The structure is 73 ft (22.4 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 350 Ml over Blackwell Arroyo built?
It was built in 2015, making it 10 years old in 2025.
What condition is US 350 Ml over Blackwell Arroyo 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 2024.
How much traffic does US 350 Ml over Blackwell Arroyo carry?
About 710 vehicles per day (2020 count), of which roughly 11% are trucks.
How long is US 350 Ml over Blackwell Arroyo?
The structure is 73 ft (22.4 m) long with a longest span of 68 ft (20.6 m) and a deck 47 ft wide.
Who owns US 350 Ml over Blackwell Arroyo?
It is owned by the State Highway Agency.