How do public water pipes not freeze in very cold weather? If house pipes freeze easily when there isn’t enough heat to keep the water in a liquid state, then why don’t pipes under the street freeze?

Question

How do public water pipes not freeze in very cold weather? If house pipes freeze easily when there isn’t enough heat to keep the water in a liquid state, then why don’t pipes under the street freeze?

In: Engineering

Answer 1

I would not have guessed that thermal heat underground would be enough to combat the cold. Thanks for the responses.