Posted 2/17/2021 06:15 (#8838414 - in reply to #8838049) Subject: RE: Frost depth
coast of Maine
In northern Maine an older contractor said you always need to bury water lines that run beneath roadways 9 ft as he had seen them freeze at 8 ft,here on the warmer coast 4 ft is the OK depth for water lines beneath drives.This year bare spots close 18inch or so,mild start.