Mariposa Street over State Route 125
FairSan Diego County, California · 11-SD-125-14.12-LMSA · Structure no. 57 0310
- Built
- 1957
- 68 years old
- Condition
- Fair
- inspected June 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 123 ft
- 2 main spans
- Daily traffic
- 1,000
- 2015 count
- Owner
- State
- State Highway Agency
About this bridge
Mariposa Street over State Route 125 is a steel stringer/multi-beam or girder carrying Mariposa Street over State Route 125 in San Diego County, California. It was built in 1957, so it is 68 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 1,000 vehicles a day, roughly 1% of them trucks, projected to reach 2,637 by 2042. The structure is 123 ft (37.5 m) long and 38 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 | 7 Good | Some minor problems. |
| 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 Mariposa Street over State Route 125 built?
It was built in 1957, making it 68 years old in 2025.
What condition is Mariposa Street over State Route 125 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 June 2024.
How much traffic does Mariposa Street over State Route 125 carry?
About 1,000 vehicles per day (2015 count), of which roughly 1% are trucks.
How long is Mariposa Street over State Route 125?
The structure is 123 ft (37.5 m) long with a longest span of 60 ft (18.3 m) and a deck 38 ft wide.
Who owns Mariposa Street over State Route 125?
It is owned by the State Highway Agency.