SH 340 Ml over Columbus Canyon
FairMesa County, Colorado · 10.5 MI E of JCT US 6 Fru · Structure no. H-02-EF
- Built
- 1950
- 75 years old
- Condition
- Fair
- inspected December 2024
- Type
- Arch - Deck
- Concrete
- Length
- 21 ft
- 1 main span
- Daily traffic
- 8,400
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
SH 340 Ml over Columbus Canyon is a concrete arch - deck carrying SH 340 Ml over Columbus Canyon in Mesa County, Colorado. It was built in 1950, so it is 75 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 8,400 vehicles a day, roughly 2% of them trucks, projected to reach 9,408 by 2040. The structure is 21 ft (6.5 m) long and 64 ft wide. If it were closed, the detour would be 5 mi (8 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SH 340 Ml over Columbus Canyon built?
It was built in 1950, making it 75 years old in 2025.
What condition is SH 340 Ml over Columbus Canyon 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 December 2024.
How much traffic does SH 340 Ml over Columbus Canyon carry?
About 8,400 vehicles per day (2020 count), of which roughly 2% are trucks.
How long is SH 340 Ml over Columbus Canyon?
The structure is 21 ft (6.5 m) long with a longest span of 21 ft (6.5 m) and a deck 64 ft wide.
Who owns SH 340 Ml over Columbus Canyon?
It is owned by the State Highway Agency.