State Route 78 over Interstate 10
FairRiverside County, California · 08-RIV-078-16.15-BLY · Structure no. 56 0569
- Built
- 1969
- 56 years old
- Condition
- Fair
- inspected April 2023
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 191 ft
- 2 main spans
- Daily traffic
- 3,100
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 78 over Interstate 10 is a concrete continuous box beam or girders - multiple carrying State Route 78 over Interstate 10 in Riverside County, California. It was built in 1969, so it is 56 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 3,100 vehicles a day, roughly 7% of them trucks, projected to reach 5,412 by 2040. The structure is 191 ft (58.2 m) long and 42 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 | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 78 over Interstate 10 built?
It was built in 1969, making it 56 years old in 2025.
What condition is State Route 78 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 April 2023.
How much traffic does State Route 78 over Interstate 10 carry?
About 3,100 vehicles per day (2020 count), of which roughly 7% are trucks.
How long is State Route 78 over Interstate 10?
The structure is 191 ft (58.2 m) long with a longest span of 95 ft (29.1 m) and a deck 42 ft wide.
Who owns State Route 78 over Interstate 10?
It is owned by the State Highway Agency.