Sierra Avenue over Interstate 10
FairSan Bernardino County, California · 08-SBD-010-16.22-FNA · Structure no. 54 1169
- Built
- 2002
- 23 years old
- Condition
- Fair
- inspected March 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 200 ft
- 2 main spans
- Daily traffic
- 64,000
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Sierra Avenue over Interstate 10 is a prestressed concrete continuous box beam or girders - multiple carrying Sierra Avenue over Interstate 10 in San Bernardino County, California. It was built in 2002, so it is 23 years old, younger 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 64,000 vehicles a day, roughly 10% of them trucks, projected to reach 80,000 by 2046. The structure is 200 ft (61 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Sierra Avenue over Interstate 10 built?
It was built in 2002, making it 23 years old in 2025.
What condition is Sierra Avenue over Interstate 10 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 Sierra Avenue over Interstate 10 carry?
About 64,000 vehicles per day (2024 count), of which roughly 10% are trucks.
How long is Sierra Avenue over Interstate 10?
The structure is 200 ft (61 m) long with a longest span of 98 ft (30 m) and a deck 154 ft wide.
Who owns Sierra Avenue over Interstate 10?
It is owned by the State Highway Agency.