JCT 470W over US 40 Ml & Lena Gulch
FairJefferson County, Colorado · I 70 to US 6 · Structure no. F-16-TX
- Built
- 1999
- 26 years old
- Condition
- Fair
- inspected January 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 275 ft
- 2 main spans
- Daily traffic
- 3,200
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
JCT 470W over US 40 Ml & Lena Gulch is a prestressed concrete continuous stringer/multi-beam or girder carrying JCT 470W over US 40 Ml & Lena Gulch in Jefferson 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 3,200 vehicles a day, roughly 20% of them trucks, projected to reach 3,680 by 2040. The structure is 275 ft (83.7 m) long and 140 ft wide. If it were closed, the detour would be 0.6 mi (1 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 | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was JCT 470W over US 40 Ml & Lena Gulch built?
It was built in 1999, making it 26 years old in 2025.
What condition is JCT 470W over US 40 Ml & 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 January 2024.
How much traffic does JCT 470W over US 40 Ml & Lena Gulch carry?
About 3,200 vehicles per day (2020 count), of which roughly 20% are trucks.
How long is JCT 470W over US 40 Ml & Lena Gulch?
The structure is 275 ft (83.7 m) long with a longest span of 145 ft (44.2 m) and a deck 140 ft wide.
Who owns JCT 470W over US 40 Ml & Lena Gulch?
It is owned by the State Highway Agency.