Interstate 8 WB over State Route 79
GoodSan Diego County, California · 11-SD-008-R37.83 · Structure no. 57 0689L
- Built
- 1970
- 55 years old
- Condition
- Good
- inspected January 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 134 ft
- 1 main span
- Daily traffic
- 11,050
- 2014 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 8 WB over State Route 79 is a prestressed concrete box beam or girders - multiple carrying Interstate 8 WB over State Route 79 in San Diego County, California. It was built in 1970, so it is 55 years old, older 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 11,050 vehicles a day, roughly 12% of them trucks, projected to reach 20,953 by 2044. The structure is 134 ft (40.8 m) long and 41 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 Interstate 8 WB over State Route 79 built?
It was built in 1970, making it 55 years old in 2025.
What condition is Interstate 8 WB over State Route 79 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 January 2024.
How much traffic does Interstate 8 WB over State Route 79 carry?
About 11,050 vehicles per day (2014 count), of which roughly 12% are trucks.
How long is Interstate 8 WB over State Route 79?
The structure is 134 ft (40.8 m) long with a longest span of 132 ft (40.2 m) and a deck 41 ft wide.
Who owns Interstate 8 WB over State Route 79?
It is owned by the State Highway Agency.