Route 133 SB over Santiago Aqueduct
GoodOrange County, California · 12-ORA-133-13.39-IRVN · Structure no. 55 0783L
- Built
- 1998
- 27 years old
- Condition
- Good
- inspected January 2025
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 177 ft
- 1 main span
- Daily traffic
- 47,200
- 2019 count
- Owner
- State
- State Highway Agency
About this bridge
Route 133 SB over Santiago Aqueduct is a prestressed concrete box beam or girders - multiple carrying Route 133 SB over Santiago Aqueduct in Orange County, California. It was built in 1998, so it is 27 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 47,200 vehicles a day, roughly 3% of them trucks, projected to reach 58,548 by 2047. The structure is 177 ft (54 m) long and 67 ft wide. If it were closed, the detour would be 5 mi (8 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 Route 133 SB over Santiago Aqueduct built?
It was built in 1998, making it 27 years old in 2025.
What condition is Route 133 SB over Santiago Aqueduct 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 January 2025.
How much traffic does Route 133 SB over Santiago Aqueduct carry?
About 47,200 vehicles per day (2019 count), of which roughly 3% are trucks.
How long is Route 133 SB over Santiago Aqueduct?
The structure is 177 ft (54 m) long with a longest span of 177 ft (54 m) and a deck 67 ft wide.
Who owns Route 133 SB over Santiago Aqueduct?
It is owned by the State Highway Agency.