Mission Avenue over Interstate 5
GoodSan Diego County, California · 11-SD-005-R53.21-OCN · Structure no. 57 0266
- Built
- 1971
- 54 years old
- Condition
- Good
- inspected April 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 306 ft
- 3 main spans
- Daily traffic
- 22,500
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
Mission Avenue over Interstate 5 is a prestressed concrete continuous box beam or girders - multiple carrying Mission Avenue over Interstate 5 in San Diego County, California. It was built in 1971, so it is 54 years old, younger 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 22,500 vehicles a day, roughly 5% of them trucks, projected to reach 30,912 by 2045. The structure is 306 ft (93.4 m) long and 79 ft wide. 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 |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| 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 Mission Avenue over Interstate 5 built?
It was built in 1971, making it 54 years old in 2025.
What condition is Mission Avenue over Interstate 5 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 April 2024.
How much traffic does Mission Avenue over Interstate 5 carry?
About 22,500 vehicles per day (2020 count), of which roughly 5% are trucks.
How long is Mission Avenue over Interstate 5?
The structure is 306 ft (93.4 m) long with a longest span of 134 ft (40.8 m) and a deck 79 ft wide.
Who owns Mission Avenue over Interstate 5?
It is owned by the State Highway Agency.