48N48 over Lost River
GoodPosted for loadModoc County, California · 3 MI E of Hopeless Pass · Structure no. 050956000003009
- Built
- 1971
- 54 years old
- Condition
- Good
- inspected August 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 50 ft
- 1 main span
- Daily traffic
- 50
- Owner
- Federal
- U.S. Forest Service
About this bridge
48N48 over Lost River is a steel stringer/multi-beam or girder carrying 48N48 over Lost River in Modoc County, California. It was built in 1971, so it is 54 years old, younger than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. Its operating status is: posted for load restriction.
It carries about 50 vehicles a day, projected to reach 75 by 2045. The structure is 50 ft (15.2 m) long and 17 ft wide. If it were closed, the detour would be 7.5 mi (12 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 48N48 over Lost River built?
It was built in 1971, making it 54 years old in 2025.
What condition is 48N48 over Lost River in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2023.
How much traffic does 48N48 over Lost River carry?
About 50 vehicles per day (latest count).
How long is 48N48 over Lost River?
The structure is 50 ft (15.2 m) long with a longest span of 50 ft (15.2 m) and a deck 17 ft wide.
Who owns 48N48 over Lost River?
It is owned by the U.S. Forest Service.