Interstate 5 over 8th Street
FairSan Diego County, California · 11-SD-005-R11.13-NATC · Structure no. 57 0469
- Built
- 1964
- 61 years old
- Condition
- Fair
- inspected April 2023
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 202 ft
- 3 main spans
- Daily traffic
- 164,000
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 5 over 8th Street is a concrete continuous box beam or girders - multiple carrying Interstate 5 over 8th Street in San Diego 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 164,000 vehicles a day, roughly 5% of them trucks, projected to reach 234,932 by 2040. The structure is 202 ft (61.6 m) long and 164 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 |
|---|---|---|
| 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 over 8th Street built?
It was built in 1964, making it 61 years old in 2025.
What condition is Interstate 5 over 8th Street 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 2023.
How much traffic does Interstate 5 over 8th Street carry?
About 164,000 vehicles per day (2020 count), of which roughly 5% are trucks.
How long is Interstate 5 over 8th Street?
The structure is 202 ft (61.6 m) long with a longest span of 104 ft (31.7 m) and a deck 164 ft wide.
Who owns Interstate 5 over 8th Street?
It is owned by the State Highway Agency.