For answers to more of your burning questions, visit the Ask Chris archive.
Where does all the dirt Metro excavates for its underground rail lines go?
Take a ride with me on the circle of life for a minute, won’t you? Concrete for the Gold Line was made of gravel mined from Vulcan Materials’ Durbin plant in Irwindale. Since state law requires gravel pits and the like to be refilled, Vulcan used soil excavated for the Crenshaw/LAX Line (13 million cubic feet so far) and the Regional Connector (4 million cubic feet).
The Purple Line and other projects dump dirt at landfills in Glendale, Castaic, and Rosamond.
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