Interstate 8 WB over Boulder Creek
GoodImperial County, California · 11-IMP-008-R0.87L · Structure no. 58 0295L
- Built
- 1963
- 62 years old
- Condition
- Good
- inspected May 2024
- Type
- Tee Beam
- Concrete
- Length
- 32 ft
- 1 main span
- Daily traffic
- 5,423
- 2018 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 8 WB over Boulder Creek is a concrete tee beam carrying Interstate 8 WB over Boulder Creek in Imperial County, California. It was built in 1963, so it is 62 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 5,423 vehicles a day, roughly 20% of them trucks, projected to reach 10,270 by 2041. The structure is 32 ft (9.9 m) long and 42 ft wide. If it were closed, the detour would be 19.9 mi (32 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 Boulder Creek built?
It was built in 1963, making it 62 years old in 2025.
What condition is Interstate 8 WB over Boulder Creek 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 May 2024.
How much traffic does Interstate 8 WB over Boulder Creek carry?
About 5,423 vehicles per day (2018 count), of which roughly 20% are trucks.
How long is Interstate 8 WB over Boulder Creek?
The structure is 32 ft (9.9 m) long with a longest span of 30 ft (9.1 m) and a deck 42 ft wide.
Who owns Interstate 8 WB over Boulder Creek?
It is owned by the State Highway Agency.