Table of Contents
- 1 How deep is the freeze line in NY?
- 2 What is the minimum depth below the frost line that footings need to be?
- 3 What is the frost line in Nassau County NY?
- 4 How thick should a footer be?
- 5 Does frost penetrate concrete?
- 6 How deep is the frost line in Long Island NY?
- 7 Where can I find the frost line map?
- 8 Where do I get my frost depth data?
How deep is the freeze line in NY?
36 to 48 inches
Whereas the average depth of frost for our region is between 15 and 20 inches, the established depth frost line varies from 36 to 48 inches. So, the frost line is a “safe” distance beneath the surface of the ground where soil and anything layed within it will not be affected by freezing temperatures.
What is the minimum depth below the frost line that footings need to be?
12 inches
Depth of Footings Footings should extend to a minimum depth of 12 inches below previously undisturbed soil. Footings also must extend at least 12 inches below the frost line (the depth to which the ground freezes in winter) or must be frost-protected.
What is the frost line in Nassau County NY?
In NY, the frost line is 3′ unless you live upstate.
How deep is the frost line in Vermont?
In Vermont, where winters can get brutally cold, our engineers require the footing to be at least 54 inches below grade. In a state like North Carolina, the frost line generally goes about 6 inches down.
How deep is the frost line in Maine?
around 5 to 6 feet
The longer the ambient temperatures remain below freezing, the deeper that frost line extends. Currently, that line is around 5 to 6 feet deep in southern Maine and several feet deeper in northern Maine, according to Jeff McNelly of the Maine Water Utilities Association.
A concrete footer can be anywhere from 20 to 30 inches wide and 8 to 10 inches thick. You’ll see them 10-inches thick more often than not. The foundation wall is usually 8 inches wide.
Does frost penetrate concrete?
Frost heave can wreak havoc on concrete driveways, sidewalks, and patios around your home. As the frost within the soil thaws and melts, the concrete can settle back towards its original position; however, it may remain raised if uneven base material develops beneath the concrete or if sufficient sized cracks develop.
How deep is the frost line in Long Island NY?
In the inter-frost zone, probably from surface to a depth of 3-4 feet (where ever frostline is in a given area) you will have the full gradient from “ambient to constant” in summer and similar in winter except the inter-frost temperature tends to remain closer to surface temperature.
How deep is the frost line in upstate New York?
How Deep Is the Frost Line in How Deep Is the Frost Line in Upstate New York? The frost line in upstate New York is greater than 48 inches in most areas and ranges from 32 to 48 inches in other parts of the Empire State, according to Adirondack Almanack writer Tom Kalinowski.
What happens to the ground 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. The depth you are required to set your frost footings will vary from region to region across the country.
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.
Where do I get my frost depth data?
Frost depth data shown in this map is queried from the North Central River Forecast Center (NCRFC) database late morning each day. Frost depth reports here are commonly from frost tube instruments, visual reports from construction or cemetery sites, or other types of electronic probes.