Irvine Boulevard over Marshburn Channel
GoodOrange County, California · 0.05 MI S/O SR 133 · Structure no. 55C0596
- Built
- 1990
- 35 years old
- Condition
- Good
- inspected April 2022
- Type
- Slab
- Concrete
- Length
- 34 ft
- 1 main span
- Daily traffic
- 33,700
- 2018 count
- Owner
- County
- County Highway Agency
About this bridge
Irvine Boulevard over Marshburn Channel is a concrete slab carrying Irvine Boulevard over Marshburn Channel in Orange County, California. It was built in 1990, 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 33,700 vehicles a day, roughly 7% of them trucks, projected to reach 44,600 by 2040. The structure is 34 ft (10.4 m) long and 120 ft wide. If it were closed, the detour would be 3.7 mi (6 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| 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 Irvine Boulevard over Marshburn Channel built?
It was built in 1990, making it 35 years old in 2025.
What condition is Irvine Boulevard over Marshburn Channel in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2022.
How much traffic does Irvine Boulevard over Marshburn Channel carry?
About 33,700 vehicles per day (2018 count), of which roughly 7% are trucks.
How long is Irvine Boulevard over Marshburn Channel?
The structure is 34 ft (10.4 m) long with a longest span of 32 ft (9.8 m) and a deck 120 ft wide.
Who owns Irvine Boulevard over Marshburn Channel?
It is owned by the County Highway Agency.