US 50 Ml over Lost Creek
FairChaffee County, Colorado · 7.6 MI W. of Poncha Spgs. · Structure no. J-12-AA
- Built
- 1939
- 86 years old
- Condition
- Fair
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 33 ft
- 1 main span
- Daily traffic
- 2,600
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
US 50 Ml over Lost Creek is a steel stringer/multi-beam or girder carrying US 50 Ml over Lost Creek in Chaffee County, Colorado. It was built in 1939, so it is 86 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 2,600 vehicles a day, roughly 10% of them trucks, projected to reach 2,938 by 2040. The structure is 33 ft (10.2 m) long and 33 ft wide. If it were closed, the detour would be 123.7 mi (199 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 | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 50 Ml over Lost Creek built?
It was built in 1939, making it 86 years old in 2025.
What condition is US 50 Ml over Lost Creek 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 June 2023.
How much traffic does US 50 Ml over Lost Creek carry?
About 2,600 vehicles per day (2020 count), of which roughly 10% are trucks.
How long is US 50 Ml over Lost Creek?
The structure is 33 ft (10.2 m) long with a longest span of 30 ft (9.1 m) and a deck 33 ft wide.
Who owns US 50 Ml over Lost Creek?
It is owned by the State Highway Agency.