Out of the fire, into the flood
October 23, 2007 10:50 AM
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In Chapter 3 of his 1999 Pulitzer Prize winning book
The Control of Nature,
John Mcphee describes the catastrophe from
debris flows following
wild fires in the Los Angeles area in 1978.
Not only do the fires destroy the vegetation that helps hold the soil in place during winter rains, the heat from the fires waterproofs the ground, creating a
fast moving stream that gathers everything in its path. I remember talking to people in Pasadena who remembered seeing huge boulders in the street following those debris flows in '78.
posted by strangeleftydoublethink (8 comments total)
posted by jfuller at 10:54 AM on October 23, 2007 [1 favorite]