Interstate 5 over Loma Alta Creek
FairSan Diego County, California · 11-SD-005-R52.18-OCN · Structure no. 57 0125
- Built
- 1953
- 72 years old, rebuilt 1971
- Condition
- Fair
- inspected April 2024
- Type
- Tee Beam
- Concrete Continuous
- Length
- 139 ft
- 3 main spans
- Daily traffic
- 203,000
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 5 over Loma Alta Creek is a concrete continuous tee beam carrying Interstate 5 over Loma Alta Creek in San Diego County, California. It was built in 1953 and reconstructed in 1971, so it is 72 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 203,000 vehicles a day, roughly 9% of them trucks, projected to reach 257,600 by 2045. The structure is 139 ft (42.4 m) long and 171 ft wide. If it were closed, the detour would be 5 mi (8 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 | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Interstate 5 over Loma Alta Creek built?
It was built in 1953, making it 72 years old in 2025. It was reconstructed in 1971.
What condition is Interstate 5 over Loma Alta 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 April 2024.
How much traffic does Interstate 5 over Loma Alta Creek carry?
About 203,000 vehicles per day (2020 count), of which roughly 9% are trucks.
How long is Interstate 5 over Loma Alta Creek?
The structure is 139 ft (42.4 m) long with a longest span of 55 ft (16.8 m) and a deck 171 ft wide.
Who owns Interstate 5 over Loma Alta Creek?
It is owned by the State Highway Agency.