S Mt SHASTA-S5 on over Interstate 5
GoodSiskiyou County, California · 02-SIS-005-R8.79 · Structure no. 02 0128K
- Built
- 1964
- 61 years old
- Condition
- Good
- inspected July 2024
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 306 ft
- 4 main spans
- Daily traffic
- 1,100
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
S Mt SHASTA-S5 on over Interstate 5 is a concrete continuous box beam or girders - multiple carrying S Mt SHASTA-S5 on over Interstate 5 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 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.
It carries about 1,100 vehicles a day, roughly 2% of them trucks, projected to reach 2,252 by 2045. The structure is 306 ft (93.3 m) long and 26 ft wide. If it were closed, the detour would be 1.2 mi (2 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. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S Mt SHASTA-S5 on over Interstate 5 built?
It was built in 1964, making it 61 years old in 2025.
What condition is S Mt SHASTA-S5 on over Interstate 5 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 July 2024.
How much traffic does S Mt SHASTA-S5 on over Interstate 5 carry?
About 1,100 vehicles per day (2024 count), of which roughly 2% are trucks.
How long is S Mt SHASTA-S5 on over Interstate 5?
The structure is 306 ft (93.3 m) long with a longest span of 91 ft (27.7 m) and a deck 26 ft wide.
Who owns S Mt SHASTA-S5 on over Interstate 5?
It is owned by the State Highway Agency.