State Route 52 WB over Mast Boulevard
FairSan Diego County, California · 11-SD-052-13.30-SD · Structure no. 57 1010L
- Built
- 1993
- 32 years old
- Condition
- Fair
- inspected May 2023
- Type
- Box Beam or Girders - Single or Spread
- Prestressed Concrete
- Length
- 164 ft
- 1 main span
- Daily traffic
- 48,000
- 2019 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 52 WB over Mast Boulevard is a prestressed concrete box beam or girders - single or spread carrying State Route 52 WB over Mast Boulevard in San Diego County, California. It was built in 1993, so it is 32 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 48,000 vehicles a day, roughly 3% of them trucks, projected to reach 54,883 by 2043. The structure is 164 ft (50 m) long and 42 ft wide. If it were closed, the detour would be 6.2 mi (10 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 52 WB over Mast Boulevard built?
It was built in 1993, making it 32 years old in 2025.
What condition is State Route 52 WB over Mast Boulevard 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 May 2023.
How much traffic does State Route 52 WB over Mast Boulevard carry?
About 48,000 vehicles per day (2019 count), of which roughly 3% are trucks.
How long is State Route 52 WB over Mast Boulevard?
The structure is 164 ft (50 m) long with a longest span of 159 ft (48.5 m) and a deck 42 ft wide.
Who owns State Route 52 WB over Mast Boulevard?
It is owned by the State Highway Agency.