Isabell Street over Lena Gulch
FairJefferson County, Colorado · Just S. of 13th Ave · Structure no. F-21-114
- Built
- 1994
- 31 years old
- Condition
- Fair
- inspected March 2025
- Type
- Culvert
- Concrete
- Length
- 40 ft
- 3 main spans
- Daily traffic
- 12,150
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
Isabell Street over Lena Gulch is a concrete culvert carrying Isabell Street over Lena Gulch in Jefferson County, Colorado. It was built in 1994, so it is 31 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 12,150 vehicles a day, roughly 4% of them trucks, projected to reach 13,972 by 2041. The structure is 40 ft (12.1 m) long and 46 ft wide. If it were closed, the detour would be 98.8 mi (159 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 Isabell Street over Lena Gulch built?
It was built in 1994, making it 31 years old in 2025.
What condition is Isabell Street 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 2025.
How much traffic does Isabell Street over Lena Gulch carry?
About 12,150 vehicles per day (2021 count), of which roughly 4% are trucks.
How long is Isabell Street over Lena Gulch?
The structure is 40 ft (12.1 m) long with a longest span of 12 ft (3.8 m) and a deck 46 ft wide.
Who owns Isabell Street over Lena Gulch?
It is owned by the County Highway Agency.