US 6 Ml over Henderson-Smith Ditch
FairLogan County, Colorado · 1.2 MI East of JCT SH 14 · Structure no. B-24-K
- Built
- 1965
- 60 years old, rebuilt 1976
- Condition
- Fair
- inspected January 2024
- Type
- Culvert
- Concrete
- Length
- 21 ft
- 1 main span
- Daily traffic
- 9,900
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
US 6 Ml over Henderson-Smith Ditch is a concrete culvert carrying US 6 Ml over Henderson-Smith Ditch in Logan County, Colorado. It was built in 1965 and reconstructed in 1976, so it is 60 years old, older 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 9,900 vehicles a day, roughly 16% of them trucks, projected to reach 13,761 by 2040. The structure is 21 ft (6.5 m) long and 99 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 |
|---|---|---|
| Channel and channel protection | 8 Very Good | No problems noted. |
| Culvert | 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 Henderson-Smith Ditch built?
It was built in 1965, making it 60 years old in 2025. It was reconstructed in 1976.
What condition is US 6 Ml over Henderson-Smith Ditch 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 US 6 Ml over Henderson-Smith Ditch carry?
About 9,900 vehicles per day (2020 count), of which roughly 16% are trucks.
How long is US 6 Ml over Henderson-Smith Ditch?
The structure is 21 ft (6.5 m) long with a longest span of 21 ft (6.5 m) and a deck 99 ft wide.
Who owns US 6 Ml over Henderson-Smith Ditch?
It is owned by the State Highway Agency.