Interstate 5 over Telegraph Canyon
GoodSan Diego County, California · 11-SD-005-6.76-CHV · Structure no. 57 1262
- Built
- 1970
- 55 years old
- Condition
- Good
- inspected February 2025
- Type
- Culvert
- Concrete Continuous
- Length
- 29 ft
- 3 main spans
- Daily traffic
- 162,000
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 5 over Telegraph Canyon is a concrete continuous culvert carrying Interstate 5 over Telegraph Canyon in San Diego County, California. It was built in 1970, so it is 55 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 162,000 vehicles a day, roughly 4% of them trucks, projected to reach 195,000 by 2045. The structure is 29 ft (8.9 m) long. 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 |
|---|---|---|
| Channel and channel protection | 8 Very Good | No problems noted. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Interstate 5 over Telegraph Canyon built?
It was built in 1970, making it 55 years old in 2025.
What condition is Interstate 5 over Telegraph Canyon 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 February 2025.
How much traffic does Interstate 5 over Telegraph Canyon carry?
About 162,000 vehicles per day (2023 count), of which roughly 4% are trucks.
How long is Interstate 5 over Telegraph Canyon?
The structure is 29 ft (8.9 m) long with a longest span of 9 ft (2.8 m).
Who owns Interstate 5 over Telegraph Canyon?
It is owned by the State Highway Agency.