Quote:
Pipes are buried six feet underground, but with a deep freeze and no
snow to help insulate, city administrators are trying to help dozens
dealing with faucets that no longer work.
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Well, that's your problem, right there.
Here in Winnipeg, a typical winter's frost line is about 6 feet deep, so our water supply and sewer pipes are buried much deeper than 6 feet.
If the water pipes are only 6 feet deep in Minnesota, and we're having a particularily cold winter, then the ground will freeze to that depth and more just like it does in Winnipeg, and that's why the pipes are frozen.
Burying the pipes only 6 feet deep because that's normally been sufficient in the past is like drowning while crossing a stream that has an average depth of only 1 foot.