This is the first time I've seen an offset corner described like this. Took me a bit to figure out what he meant. Anyone else see an offset called out like that? Sorry for the poor quality image.
Me. "What's the difference?"
T.C. Carroll "It's the difference between right and wrong!"
My favorite way to do control offsets on plans is to give the difference from the north reference. It makes it very easy to coordinate everything if the survey needs to be retraced.
The other practice is labeling the offsets at 90 degrees to the line.
The above just looks like a copy, paste and a "whoops we forgot to edit the call after the offset"
Typically on boundary surveys offsets are on line either ahead or back from the corner. At least around here. I think the monument didn't fit his line either way. Simpler in that case to just give bearing and distance to the monument. Or the delta North and east.?ÿ
Me. "What's the difference?"
T.C. Carroll "It's the difference between right and wrong!"
"Typically on boundary surveys offsets are on line either ahead or back from the corner. At least around here."
Same here, always on line if possible, if not we set a witness corner with ties to the "real" corner. We are required to place a cap stating witness corner on anything we set other than the actual corner.?ÿ ??ÿ
Once upon a time, cardinal references were understood to mean parallel with or distance from a particular line. The advent of cogo in the hands of less experienced crew chiefs and techs saw the rise of literal interpretation of cardinals and calls to monuments by 'coordinate subtraction'. My guess is this was an attempt to make it clear this was done by the earlier method. My opinion is it didn't clarify things much ..