Do I need to dig below the frost line?
When you excavate your footings you will need to dig below the frost line. This is the depth at which the moisture present in the soil is expected to freeze. Once your footings are buried below the frost line the ground will act as a barrier to insulate the soil below the footing from freezing in the winter.
How far down is the frost line in Missouri?
In central Missouri, the frost line is considered to be 30 to 36 inches.
How deep is the frost line in Springfield Missouri?
24 inches
1. Extending below the frost line, established at 24 inches for the City of Springfield, Missouri; 2.
Why do footings need to be below the frost line?
When you excavate your footings you will need to dig below the frost line. This is the depth at which the moisture present in the soil is expected to freeze. That way, they won’t move, or heave, as the ground freezes and thaws during seasonal changes.
What type of footing is most common in residential construction?
Individual footing or an isolated footing is the most common type of foundation used for building construction. This foundation is constructed for a single column and also called a pad foundation.
What’s the maximum depth of the frost line?
Note how it moves down from 72-inch depth to a 6-inch depth. The maximum frost line depth is 100-inches as seen near the tip of Minnesota, North Dakota, and Alaska, all the way to zero inches in Florida, southern Arizona, and southern California. If the map isn’t accurate enough for you.
What should be buried below the frost line?
That’s why building codes specify structural footings be placed below the frost line. Additionally, water and sewer pipes need buried below the frost depth. The frost line map below was drawn based on data from the U.S Department of Commerce.
Where can I find the frost line map?
This frost line map provides a general idea of where the frost line is in your area. If you live on the edge of the line, it’s best to go with the recommendations of the colder side to avoid any issues. This map is from the National Snow and Ice Data center and shows the frost line map across the United States.
Which is the deepest line in the ground?
Frost Line Penetration Map In The U.S. The frost line is simply the deepest point in the ground to which ground water will freeze. It’s also referred to as the frost depth.