Interstate 40 over Circle Ditch
GoodSan Bernardino County, California · 08-SBD-040-R52.12 · Structure no. 54 0086
- Built
- 1968
- 57 years old, rebuilt 1970
- Condition
- Good
- inspected February 2024
- Type
- Culvert
- Steel
- Length
- 26 ft
- 2 main spans
- Daily traffic
- 16,300
- 2018 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 40 over Circle Ditch is a steel culvert carrying Interstate 40 over Circle Ditch in San Bernardino County, California. It was built in 1968 and reconstructed in 1970, so it is 57 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 16,300 vehicles a day, roughly 43% of them trucks, projected to reach 22,208 by 2046. The structure is 26 ft (7.9 m) long. 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 |
|---|---|---|
| Channel and channel protection | 8 Very Good | No problems noted. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Interstate 40 over Circle Ditch built?
It was built in 1968, making it 57 years old in 2025. It was reconstructed in 1970.
What condition is Interstate 40 over Circle Ditch 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 February 2024.
How much traffic does Interstate 40 over Circle Ditch carry?
About 16,300 vehicles per day (2018 count), of which roughly 43% are trucks.
How long is Interstate 40 over Circle Ditch?
The structure is 26 ft (7.9 m) long with a longest span of 11 ft (3.4 m).
Who owns Interstate 40 over Circle Ditch?
It is owned by the State Highway Agency.