Interstate 5 over Little Castle Creek
FairSiskiyou County, California · 02-SIS-005-0.04 · Structure no. 02 0045
- Built
- 1960
- 65 years old
- Condition
- Fair
- inspected July 2024
- Type
- Arch - Deck
- Concrete
- Length
- 26 ft
- 1 main span
- Daily traffic
- 18,000
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 5 over Little Castle Creek is a concrete arch - deck carrying Interstate 5 over Little Castle Creek in Siskiyou County, California. It was built in 1960, so it is 65 years old, older than the California average of 54.8 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 18,000 vehicles a day, roughly 28% of them trucks, projected to reach 26,613 by 2045. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 5 mi (8 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 |
|---|---|---|
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Interstate 5 over Little Castle Creek built?
It was built in 1960, making it 65 years old in 2025.
What condition is Interstate 5 over Little Castle 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 2024.
How much traffic does Interstate 5 over Little Castle Creek carry?
About 18,000 vehicles per day (2024 count), of which roughly 28% are trucks.
How long is Interstate 5 over Little Castle Creek?
The structure is 26 ft (7.9 m) long with a longest span of 21 ft (6.4 m).
Who owns Interstate 5 over Little Castle Creek?
It is owned by the State Highway Agency.