Interstate 5 over Agua Hedionda Lagoon
FairSan Diego County, California · 11-SD-005-R48.68-CBD · Structure no. 57 0282
- Built
- 1953
- 72 years old, rebuilt 1970
- Condition
- Fair
- inspected March 2024
- Type
- Slab
- Concrete Continuous
- Length
- 191 ft
- 7 main spans
- Daily traffic
- 222,000
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 5 over Agua Hedionda Lagoon is a concrete continuous slab carrying Interstate 5 over Agua Hedionda Lagoon in San Diego County, California. It was built in 1953 and reconstructed in 1970, 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 222,000 vehicles a day, roughly 6% of them trucks, projected to reach 244,926 by 2042. The structure is 191 ft (58.2 m) long and 158 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 Agua Hedionda Lagoon built?
It was built in 1953, making it 72 years old in 2025. It was reconstructed in 1970.
What condition is Interstate 5 over Agua Hedionda Lagoon 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 March 2024.
How much traffic does Interstate 5 over Agua Hedionda Lagoon carry?
About 222,000 vehicles per day (2020 count), of which roughly 6% are trucks.
How long is Interstate 5 over Agua Hedionda Lagoon?
The structure is 191 ft (58.2 m) long with a longest span of 32 ft (9.8 m) and a deck 158 ft wide.
Who owns Interstate 5 over Agua Hedionda Lagoon?
It is owned by the State Highway Agency.