Interstate 8 over LA Mesa Blvd
FairSan Diego County, California · 11-SD-008-12.12-LMSA · Structure no. 57 0953
- Built
- 1989
- 36 years old
- Condition
- Fair
- inspected May 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 123 ft
- 1 main span
- Daily traffic
- 186,000
- 2014 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 8 over LA Mesa Blvd is a prestressed concrete box beam or girders - multiple carrying Interstate 8 over LA Mesa Blvd in San Diego County, California. It was built in 1989, so it is 36 years old, younger 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 186,000 vehicles a day, projected to reach 220,000 by 2044. The structure is 123 ft (37.5 m) long and 146 ft wide. If it were closed, the detour would be 1.9 mi (3 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 8 over LA Mesa Blvd built?
It was built in 1989, making it 36 years old in 2025.
What condition is Interstate 8 over LA Mesa Blvd 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 May 2024.
How much traffic does Interstate 8 over LA Mesa Blvd carry?
About 186,000 vehicles per day (2014 count).
How long is Interstate 8 over LA Mesa Blvd?
The structure is 123 ft (37.5 m) long with a longest span of 119 ft (36.3 m) and a deck 146 ft wide.
Who owns Interstate 8 over LA Mesa Blvd?
It is owned by the State Highway Agency.