US 6 Ml over UP RR
FairLogan County, Colorado · 12 MI SW of Sterling · Structure no. C-23-AO
- Built
- 1999
- 26 years old
- Condition
- Fair
- inspected July 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 230 ft
- 3 main spans
- Daily traffic
- 1,000
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
US 6 Ml over UP RR is a prestressed concrete continuous box beam or girders - multiple carrying US 6 Ml over UP RR in Logan County, Colorado. It was built in 1999, so it is 26 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 1,000 vehicles a day, roughly 17% of them trucks, projected to reach 1,250 by 2040. The structure is 230 ft (70 m) long and 41 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 6 Ml over UP RR built?
It was built in 1999, making it 26 years old in 2025.
What condition is US 6 Ml over UP RR 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 July 2023.
How much traffic does US 6 Ml over UP RR carry?
About 1,000 vehicles per day (2020 count), of which roughly 17% are trucks.
How long is US 6 Ml over UP RR?
The structure is 230 ft (70 m) long with a longest span of 96 ft (29.4 m) and a deck 41 ft wide.
Who owns US 6 Ml over UP RR?
It is owned by the State Highway Agency.