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A comment on California Megafires Are Solvable. Parent comment

Re:California Megafires Are Solvable by hadlock on Tuesday August 10, 2021 @11:35PM (#28137677)
There's a movement growing to build effectively a 9' gravel road around Santa Rosa as a fire moat of last defense. It would be paid out of funds given from the recent fire there.

If you zoom in on tiny communities up in the foothills, occasionally you'll see roads marked on google maps as "Dozer Line" where the locals have built their own crude fire moats to protect the community as best they can. I don't know if these are maintained to any degree, but it's certainly not a new idea.

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Re:California Megafires Are Solvable by WalterBright on Wednesday August 11, 2021 @12:21AM (#28137994)
I understand that low masonry walls also prevent heavier wind blown embers from travelling. One on the periphery of your property, and one a few feet from the house. Defense in depth.
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