Michelson Drive over San Diego Creek Channel
GoodOrange County, California · 0.3 KM W Harvard Ave · Structure no. 55C0203
- Built
- 1976
- 49 years old, rebuilt 1997
- Condition
- Good
- inspected February 2022
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 354 ft
- 4 main spans
- Daily traffic
- 17,700
- 2018 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Michelson Drive over San Diego Creek Channel is a prestressed concrete continuous stringer/multi-beam or girder carrying Michelson Drive over San Diego Creek Channel in Orange County, California. It was built in 1976 and reconstructed in 1997, so it is 49 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 17,700 vehicles a day, roughly 7% of them trucks, projected to reach 30,000 by 2040. The structure is 354 ft (107.9 m) long and 87 ft wide. If it were closed, the detour would be 1.9 mi (3 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 Michelson Drive over San Diego Creek Channel built?
It was built in 1976, making it 49 years old in 2025. It was reconstructed in 1997.
What condition is Michelson Drive over San Diego Creek 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 February 2022.
How much traffic does Michelson Drive over San Diego Creek Channel carry?
About 17,700 vehicles per day (2018 count), of which roughly 7% are trucks.
How long is Michelson Drive over San Diego Creek Channel?
The structure is 354 ft (107.9 m) long with a longest span of 88 ft (26.8 m) and a deck 87 ft wide.
Who owns Michelson Drive over San Diego Creek Channel?
It is owned by the City or Municipal Highway Agency.