Interstate 8 WB over Sweetwater River
GoodSan Diego County, California · 11-SD-008-R36.53 · Structure no. 57 0688L
- Built
- 1970
- 55 years old
- Condition
- Good
- inspected January 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 560 ft
- 3 main spans
- Daily traffic
- 11,050
- 2014 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 8 WB over Sweetwater River is a steel continuous stringer/multi-beam or girder carrying Interstate 8 WB over Sweetwater River 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 560 ft (170.7 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. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Interstate 8 WB over Sweetwater River built?
It was built in 1970, making it 55 years old in 2025.
What condition is Interstate 8 WB over Sweetwater River 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 Sweetwater River carry?
About 11,050 vehicles per day (2014 count), of which roughly 12% are trucks.
How long is Interstate 8 WB over Sweetwater River?
The structure is 560 ft (170.7 m) long with a longest span of 213 ft (64.9 m) and a deck 41 ft wide.
Who owns Interstate 8 WB over Sweetwater River?
It is owned by the State Highway Agency.