Black Mountain RD over Penasquitos Creek
FairSan Diego County, California · 0.94MI S/O SR 56 · Structure no. 57C0602
- Built
- 1990
- 35 years old, rebuilt 1992
- Condition
- Fair
- inspected October 2023
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 173 ft
- 3 main spans
- Daily traffic
- 29,200
- 2016 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Black Mountain RD over Penasquitos Creek is a concrete continuous box beam or girders - multiple carrying Black Mountain RD over Penasquitos Creek in San Diego County, California. It was built in 1990 and reconstructed in 1992, so it is 35 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 29,200 vehicles a day, roughly 1% of them trucks, projected to reach 44,518 by 2045. The structure is 173 ft (52.7 m) long and 98 ft wide. If it were closed, the detour would be 11.2 mi (18 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 | 7 Good | Some minor problems. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Black Mountain RD over Penasquitos Creek built?
It was built in 1990, making it 35 years old in 2025. It was reconstructed in 1992.
What condition is Black Mountain RD over Penasquitos Creek 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 October 2023.
How much traffic does Black Mountain RD over Penasquitos Creek carry?
About 29,200 vehicles per day (2016 count), of which roughly 1% are trucks.
How long is Black Mountain RD over Penasquitos Creek?
The structure is 173 ft (52.7 m) long with a longest span of 72 ft (21.9 m) and a deck 98 ft wide.
Who owns Black Mountain RD over Penasquitos Creek?
It is owned by the City or Municipal Highway Agency.