I 70 Ml over Lena Gulch
FairJefferson County, Colorado · 0.7 MI E of W Colfax · Structure no. F-16-HR
- Built
- 1968
- 57 years old, rebuilt 1986
- Condition
- Fair
- inspected March 2024
- Type
- Culvert
- Concrete
- Length
- 29 ft
- 2 main spans
- Daily traffic
- 87,000
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
I 70 Ml over Lena Gulch is a concrete culvert carrying I 70 Ml over Lena Gulch in Jefferson County, Colorado. It was built in 1968 and reconstructed in 1986, so it is 57 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 87,000 vehicles a day, roughly 8% of them trucks, projected to reach 106,140 by 2040. The structure is 29 ft (8.8 m) long and 311 ft wide. If it were closed, the detour would be 1.9 mi (3 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 I 70 Ml over Lena Gulch built?
It was built in 1968, making it 57 years old in 2025. It was reconstructed in 1986.
What condition is I 70 Ml over Lena Gulch 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 March 2024.
How much traffic does I 70 Ml over Lena Gulch carry?
About 87,000 vehicles per day (2020 count), of which roughly 8% are trucks.
How long is I 70 Ml over Lena Gulch?
The structure is 29 ft (8.8 m) long with a longest span of 13 ft (4 m) and a deck 311 ft wide.
Who owns I 70 Ml over Lena Gulch?
It is owned by the State Highway Agency.