Interstate 805 over San Ysidro Ditch
GoodSan Diego County, California · 11-SD-805-0.54-SD · Structure no. 57 0838
- Built
- 1900
- 125 years old, rebuilt 1975
- Condition
- Good
- inspected May 2022
- Type
- Culvert
- Concrete Continuous
- Length
- 28 ft
- 4 main spans
- Daily traffic
- 52,000
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 805 over San Ysidro Ditch is a concrete continuous culvert carrying Interstate 805 over San Ysidro Ditch in San Diego County, California. It was built in 1900 and reconstructed in 1975, so it is 125 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 52,000 vehicles a day, roughly 4% of them trucks, projected to reach 77,688 by 2042. The structure is 28 ft (8.6 m) long. If it were closed, the detour would be 1.9 mi (3 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 805 over San Ysidro Ditch built?
It was built in 1900, making it 125 years old in 2025. It was reconstructed in 1975.
What condition is Interstate 805 over San Ysidro Ditch 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 May 2022.
How much traffic does Interstate 805 over San Ysidro Ditch carry?
About 52,000 vehicles per day (2020 count), of which roughly 4% are trucks.
How long is Interstate 805 over San Ysidro Ditch?
The structure is 28 ft (8.6 m) long with a longest span of 7 ft (2.1 m).
Who owns Interstate 805 over San Ysidro Ditch?
It is owned by the State Highway Agency.