Marine Avenue over Balboa Island Channel
FairOrange County, California · 0.1 Mi. S/O Bayside Drive · Structure no. 55C0014
- Built
- 1930
- 95 years old, rebuilt 1981
- Condition
- Fair
- inspected June 2023
- Type
- Tee Beam
- Concrete Continuous
- Length
- 399 ft
- 19 main spans
- Daily traffic
- 12,000
- 2020 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Marine Avenue over Balboa Island Channel is a concrete continuous tee beam carrying Marine Avenue over Balboa Island Channel in Orange County, California. It was built in 1930 and reconstructed in 1981, so it is 95 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 12,000 vehicles a day, roughly 3% of them trucks, projected to reach 21,377 by 2040. The structure is 399 ft (121.6 m) long and 40 ft wide. If it were closed, the detour would be 123.7 mi (199 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 | 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 Marine Avenue over Balboa Island Channel built?
It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1981.
What condition is Marine Avenue over Balboa Island Channel 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 2023.
How much traffic does Marine Avenue over Balboa Island Channel carry?
About 12,000 vehicles per day (2020 count), of which roughly 3% are trucks.
How long is Marine Avenue over Balboa Island Channel?
The structure is 399 ft (121.6 m) long with a longest span of 26 ft (7.9 m) and a deck 40 ft wide.
Who owns Marine Avenue over Balboa Island Channel?
It is owned by the City or Municipal Highway Agency.