Interstate 5 NB over UP RR & AMTRAK
FairSiskiyou County, California · 02-SIS-005-R9.20 · Structure no. 02 0036R
- Built
- 1964
- 61 years old
- Condition
- Fair
- inspected September 2023
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 242 ft
- 3 main spans
- Daily traffic
- 20,000
- 2015 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 5 NB over UP RR & AMTRAK is a concrete continuous box beam or girders - multiple carrying Interstate 5 NB over UP RR & AMTRAK in Siskiyou County, California. It was built in 1964, so it is 61 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 5 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 20,000 vehicles a day, roughly 29% of them trucks, projected to reach 28,000 by 2040. The structure is 242 ft (73.8 m) long and 42 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Interstate 5 NB over UP RR & AMTRAK built?
It was built in 1964, making it 61 years old in 2025.
What condition is Interstate 5 NB over UP RR & AMTRAK 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 September 2023.
How much traffic does Interstate 5 NB over UP RR & AMTRAK carry?
About 20,000 vehicles per day (2015 count), of which roughly 29% are trucks.
How long is Interstate 5 NB over UP RR & AMTRAK?
The structure is 242 ft (73.8 m) long with a longest span of 105 ft (32.1 m) and a deck 42 ft wide.
Who owns Interstate 5 NB over UP RR & AMTRAK?
It is owned by the State Highway Agency.