State Route 138 over California Aqueduct
Good Condition55 years old9,300 vehicles/day
Location
| State | California |
| County | Los Angeles |
| Location | 07-la-138-70.28 |
| Carries | State Route 138 |
| Crosses | California Aqueduct |
| Coordinates | 34.49121, -117.72660 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Box Beam - Multiple |
| Total Length | 67.9 ft (20.7 m) |
| Max Span | 65.9 ft (20.1 m) |
| Deck Width | 43.0 ft (13.1 m) |
| Deck Area | 271.2 sq m |
| Main Spans | 1 |
| Year Built | 1971 |
Traffic
| Avg Daily Traffic | 9,300 (2019) |
| Truck Traffic | 6% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2024 |
| Inspection Frequency | Every 48 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 53 2174 |