The Zanja Madre | KCET
The Zanja Madre
The Zanja Madre, or "Mother Ditch," is the original aqueduct that brought water to El Pueblo from the Los Angeles River. Built in 1781, the zanja pumped water from the river using a water wheel, sending it into brick pipes that lead to the center of La Placita Olvera. The remains of the Zanja where uncovered in the 1970s by archeologist Julia Costella and can be seen sitting just behind a fence in the Los Angeles State Historic Park.
The salad grown at Sierra Madre Middle School uses an indoor aeroponics system. This system uses 90% less water than conventional gardening methods and produces 30% more food. A single harvest can be ready in three weeks and a basic system costs $500.