State Route 78 over Mission RD Nctd BNSF RY
FairSan Diego County, California · 11-SD-078-14.99-SMCS · Structure no. 57 0135
- Built
- 1962
- 63 years old, rebuilt 2013
- Condition
- Fair
- inspected April 2023
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 358 ft
- 4 main spans
- Daily traffic
- 158,000
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 78 over Mission RD Nctd BNSF RY is a concrete continuous box beam or girders - multiple carrying State Route 78 over Mission RD Nctd BNSF RY in San Diego County, California. It was built in 1962 and reconstructed in 2013, so it is 63 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 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 158,000 vehicles a day, roughly 5% of them trucks, projected to reach 218,607 by 2040. The structure is 358 ft (109.1 m) long and 143 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 | 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 State Route 78 over Mission RD Nctd BNSF RY built?
It was built in 1962, making it 63 years old in 2025. It was reconstructed in 2013.
What condition is State Route 78 over Mission RD Nctd BNSF RY 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 April 2023.
How much traffic does State Route 78 over Mission RD Nctd BNSF RY carry?
About 158,000 vehicles per day (2020 count), of which roughly 5% are trucks.
How long is State Route 78 over Mission RD Nctd BNSF RY?
The structure is 358 ft (109.1 m) long with a longest span of 100 ft (30.5 m) and a deck 143 ft wide.
Who owns State Route 78 over Mission RD Nctd BNSF RY?
It is owned by the State Highway Agency.