Q:

What is the frost line depth in New York City?

A:

Quick Answer

The average frost line depth in New York City is 36 inches. The frost line is the average depth in which the ground water in soil usually freezes. This is also referred to as "frost depth" or "freezing depth."

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What is the frost line depth in New York City?
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Full Answer

Some states have building codes that take into account the frost line depth. During freezing conditions, the frost in the ground can swell upwards, causing frost heaving. This damages a building's structure when frost heaving moves the foundation. Local frost line depth is also important to know when burying water lines; burying them too shallowly causes them to freeze in cold temperatures.

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