Interstate 8 over Alvarado Canyon Creek
FairSan Diego County, California · 11-SD-008-10.61-LMSA · Structure no. 57 0327
- Built
- 1939
- 86 years old, rebuilt 1961
- Condition
- Fair
- inspected April 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 32 ft
- 3 main spans
- Daily traffic
- 175,000
- 2014 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 8 over Alvarado Canyon Creek is a concrete continuous culvert carrying Interstate 8 over Alvarado Canyon Creek in San Diego County, California. It was built in 1939 and reconstructed in 1961, so it is 86 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 175,000 vehicles a day, roughly 4% of them trucks, projected to reach 198,000 by 2042. The structure is 32 ft (9.8 m) long and 179 ft wide. If it were closed, the detour would be 1.2 mi (2 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 |
|---|---|---|
| Channel and channel protection | 8 Very Good | No problems noted. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Interstate 8 over Alvarado Canyon Creek built?
It was built in 1939, making it 86 years old in 2025. It was reconstructed in 1961.
What condition is Interstate 8 over Alvarado Canyon 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 April 2024.
How much traffic does Interstate 8 over Alvarado Canyon Creek carry?
About 175,000 vehicles per day (2014 count), of which roughly 4% are trucks.
How long is Interstate 8 over Alvarado Canyon Creek?
The structure is 32 ft (9.8 m) long with a longest span of 8 ft (2.4 m) and a deck 179 ft wide.
Who owns Interstate 8 over Alvarado Canyon Creek?
It is owned by the State Highway Agency.