Interstate 8 over First Street
GoodSan Diego County, California · 11-SD-008-16.84-ECJ · Structure no. 57 0378
- Built
- 1961
- 64 years old, rebuilt 1968
- Condition
- Good
- inspected June 2024
- Type
- Box Beam or Girders - Multiple
- Concrete
- Length
- 60 ft
- 1 main span
- Daily traffic
- 117,000
- 2014 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 8 over First Street is a concrete box beam or girders - multiple carrying Interstate 8 over First Street in San Diego County, California. It was built in 1961 and reconstructed in 1968, so it is 64 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 117,000 vehicles a day, roughly 3% of them trucks, projected to reach 179,000 by 2044. The structure is 60 ft (18.3 m) long and 143 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 over First Street built?
It was built in 1961, making it 64 years old in 2025. It was reconstructed in 1968.
What condition is Interstate 8 over First Street 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 June 2024.
How much traffic does Interstate 8 over First Street carry?
About 117,000 vehicles per day (2014 count), of which roughly 3% are trucks.
How long is Interstate 8 over First Street?
The structure is 60 ft (18.3 m) long with a longest span of 58 ft (17.7 m) and a deck 143 ft wide.
Who owns Interstate 8 over First Street?
It is owned by the State Highway Agency.