Balboa Ave WB over Murphy Canyon RD
GoodSan Diego County, California · 11-SD-000-0.00-SD · Structure no. 57 0880L
- Built
- 1982
- 43 years old
- Condition
- Good
- inspected July 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 125 ft
- 1 main span
- Daily traffic
- 14,700
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
Balboa Ave WB over Murphy Canyon RD is a prestressed concrete box beam or girders - multiple carrying Balboa Ave WB over Murphy Canyon RD in San Diego County, California. It was built in 1982, so it is 43 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 14,700 vehicles a day, roughly 3% of them trucks, projected to reach 23,730 by 2041. The structure is 125 ft (38.1 m) long and 45 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. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Balboa Ave WB over Murphy Canyon RD built?
It was built in 1982, making it 43 years old in 2025.
What condition is Balboa Ave WB over Murphy Canyon RD 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 July 2023.
How much traffic does Balboa Ave WB over Murphy Canyon RD carry?
About 14,700 vehicles per day (2020 count), of which roughly 3% are trucks.
How long is Balboa Ave WB over Murphy Canyon RD?
The structure is 125 ft (38.1 m) long with a longest span of 121 ft (36.9 m) and a deck 45 ft wide.
Who owns Balboa Ave WB over Murphy Canyon RD?
It is owned by the State Highway Agency.