S/B 805 Mainline over Interstate 5
FairSan Diego County, California · 11-SD-805-0.50-SD · Structure no. 57 0839F
- Built
- 1973
- 52 years old
- Condition
- Fair
- inspected May 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 558 ft
- 3 main spans
- Daily traffic
- 50,000
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
S/B 805 Mainline over Interstate 5 is a prestressed concrete continuous box beam or girders - multiple carrying S/B 805 Mainline over Interstate 5 in San Diego County, California. It was built in 1973, so it is 52 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 50,000 vehicles a day, roughly 4% of them trucks, projected to reach 60,000 by 2042. The structure is 558 ft (170.1 m) long and 83 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 S/B 805 Mainline over Interstate 5 built?
It was built in 1973, making it 52 years old in 2025.
What condition is S/B 805 Mainline over Interstate 5 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 S/B 805 Mainline over Interstate 5 carry?
About 50,000 vehicles per day (2020 count), of which roughly 4% are trucks.
How long is S/B 805 Mainline over Interstate 5?
The structure is 558 ft (170.1 m) long with a longest span of 229 ft (69.8 m) and a deck 83 ft wide.
Who owns S/B 805 Mainline over Interstate 5?
It is owned by the State Highway Agency.