Interstate 10 WB over Millard Canyon Wash
FairRiverside County, California · 08-RIV-010-R20.15 · Structure no. 56 0529L
- Built
- 1966
- 59 years old
- Condition
- Fair
- inspected July 2023
- Type
- Slab
- Concrete Continuous
- Length
- 63 ft
- 3 main spans
- Daily traffic
- 45,500
- 2014 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 10 WB over Millard Canyon Wash is a concrete continuous slab carrying Interstate 10 WB over Millard Canyon Wash in Riverside County, California. It was built in 1966, so it is 59 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 6 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 45,500 vehicles a day, roughly 19% of them trucks, projected to reach 60,000 by 2044. The structure is 63 ft (19.2 m) long and 68 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Interstate 10 WB over Millard Canyon Wash built?
It was built in 1966, making it 59 years old in 2025.
What condition is Interstate 10 WB over Millard Canyon Wash 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 July 2023.
How much traffic does Interstate 10 WB over Millard Canyon Wash carry?
About 45,500 vehicles per day (2014 count), of which roughly 19% are trucks.
How long is Interstate 10 WB over Millard Canyon Wash?
The structure is 63 ft (19.2 m) long with a longest span of 21 ft (6.4 m) and a deck 68 ft wide.
Who owns Interstate 10 WB over Millard Canyon Wash?
It is owned by the State Highway Agency.