Fdr 520 over Lost Trail Creek
FairHinsdale County, Colorado · 18.1 MI on Fdr 520 · Structure no. 020905000001178
- Built
- 1959
- 66 years old
- Condition
- Fair
- inspected July 2023
- Type
- Stringer/Multi-beam or Girder
- Wood or Timber
- Length
- 34 ft
- 1 main span
- Daily traffic
- 113
- 2003 count
- Owner
- Federal
- U.S. Forest Service
About this bridge
Fdr 520 over Lost Trail Creek is a wood or timber stringer/multi-beam or girder carrying Fdr 520 over Lost Trail Creek in Hinsdale County, Colorado. It was built in 1959, so it is 66 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 113 vehicles a day, roughly 4% of them trucks, projected to reach 43 by 2011. The structure is 34 ft (10.4 m) long and 15 ft wide. If it were closed, the detour would be 98.2 mi (158 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| 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 Fdr 520 over Lost Trail Creek built?
It was built in 1959, making it 66 years old in 2025.
What condition is Fdr 520 over Lost Trail 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 July 2023.
How much traffic does Fdr 520 over Lost Trail Creek carry?
About 113 vehicles per day (2003 count), of which roughly 4% are trucks.
How long is Fdr 520 over Lost Trail Creek?
The structure is 34 ft (10.4 m) long with a longest span of 31 ft (9.4 m) and a deck 15 ft wide.
Who owns Fdr 520 over Lost Trail Creek?
It is owned by the U.S. Forest Service.