Interstate 15 NB over Mayhew Wash
GoodRiverside County, California · 08-RIV-015-31.97 · Structure no. 56 0674R
- Built
- 1979
- 46 years old
- Condition
- Good
- inspected January 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 152 ft
- 1 main span
- Daily traffic
- 65,000
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 15 NB over Mayhew Wash is a prestressed concrete box beam or girders - multiple carrying Interstate 15 NB over Mayhew Wash in Riverside County, California. It was built in 1979, so it is 46 years old, younger than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 65,000 vehicles a day, roughly 13% of them trucks, projected to reach 102,884 by 2042. The structure is 152 ft (46.4 m) long and 69 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Interstate 15 NB over Mayhew Wash built?
It was built in 1979, making it 46 years old in 2025.
What condition is Interstate 15 NB over Mayhew Wash in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in January 2024.
How much traffic does Interstate 15 NB over Mayhew Wash carry?
About 65,000 vehicles per day (2021 count), of which roughly 13% are trucks.
How long is Interstate 15 NB over Mayhew Wash?
The structure is 152 ft (46.4 m) long with a longest span of 152 ft (46.4 m) and a deck 69 ft wide.
Who owns Interstate 15 NB over Mayhew Wash?
It is owned by the State Highway Agency.