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Stony Point railway line was created in 1888.
the movement of brook
Average is 4ft, building code requires water pipes to be at least 6ft deep to be well below frost line and safe from frezzing.
Up to July 2008 it was 4' per the NYC Code. I haven't dealt enough with the newly adopted code. I imagine it hasn't changed.
Bury to Holcombe Brook Line was created in 1882.
Bury to Holcombe Brook Line ended in 1963.
frost line in Gwinnett
Brook Avenue - IRT Pelham Line - was created in 1919.
no Frost
The frost line i Michigan measures about 42 inches.
Frost line in SLC is 30"in
The frost line in the state of West Virginia is about 30 inches. This is the depth that frost can penetrate the soil.