Interstate 10 over Ninth Street
FairSan Bernardino County, California · 08-SBD-010-R22.71-COL · Structure no. 54 0461
- Built
- 1956
- 69 years old, rebuilt 1970
- Condition
- Fair
- inspected March 2024
- Type
- Box Beam or Girders - Multiple
- Concrete
- Length
- 83 ft
- 1 main span
- Daily traffic
- 177,000
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 10 over Ninth Street is a concrete box beam or girders - multiple carrying Interstate 10 over Ninth Street in San Bernardino County, California. It was built in 1956 and reconstructed in 1970, so it is 69 years old, older than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 177,000 vehicles a day, roughly 10% of them trucks, projected to reach 210,000 by 2043. The structure is 83 ft (25.3 m) long and 154 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Interstate 10 over Ninth Street built?
It was built in 1956, making it 69 years old in 2025. It was reconstructed in 1970.
What condition is Interstate 10 over Ninth Street in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in March 2024.
How much traffic does Interstate 10 over Ninth Street carry?
About 177,000 vehicles per day (2021 count), of which roughly 10% are trucks.
How long is Interstate 10 over Ninth Street?
The structure is 83 ft (25.3 m) long with a longest span of 81 ft (24.7 m) and a deck 154 ft wide.
Who owns Interstate 10 over Ninth Street?
It is owned by the State Highway Agency.