The frost line in Chicago typically ranges from about 32 to 36 inches below the surface. This depth can vary depending on specific local conditions, such as soil type and moisture content. It is important for construction and landscaping projects to consider the frost line to prevent damage from freeze-thaw cycles.
The frost line in the city of Chicago is thought to be 36 inches. The average Chicago winter does not exceed the 36 inch frost line, but extremely cold winters can.
3 feet 6 inches
no Frost
Well, there more then one frost line in Illinois: 1) 10" to 20" for Southern Illinois 2) 15" to 30" for Central Illinois (frost line for Peoria) 3) 20" to 35" for Northern Illinois
no Frost
one metre
42 inches
42"
3ft
What is the frost line depth in louisville Kentucky
The frost line in Ohio is 3ft
48"