Interstate 40 over Tank Tower Ditch
PoorSan Bernardino County, California · 08-SBD-040-R119.51 · Structure no. 54 0202R
- Built
- 1971
- 54 years old
- Condition
- Poor
- inspected March 2023
- Type
- Slab
- Concrete Continuous
- Length
- 81 ft
- 3 main spans
- Daily traffic
- 7,450
- 2019 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 40 over Tank Tower Ditch is a concrete continuous slab carrying Interstate 40 over Tank Tower Ditch in San Bernardino County, California. It was built in 1971, so it is 54 years old, younger than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 7,450 vehicles a day, roughly 40% of them trucks, projected to reach 10,650 by 2043. The structure is 81 ft (24.7 m) long and 41 ft wide. If it were closed, the detour would be 12.4 mi (20 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Interstate 40 over Tank Tower Ditch built?
It was built in 1971, making it 54 years old in 2025.
What condition is Interstate 40 over Tank Tower Ditch in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2023.
How much traffic does Interstate 40 over Tank Tower Ditch carry?
About 7,450 vehicles per day (2019 count), of which roughly 40% are trucks.
How long is Interstate 40 over Tank Tower Ditch?
The structure is 81 ft (24.7 m) long with a longest span of 32 ft (9.8 m) and a deck 41 ft wide.
Who owns Interstate 40 over Tank Tower Ditch?
It is owned by the State Highway Agency.