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a +/- discussion within the office… want you opinion
MightyMoe replied 3 years, 5 months ago 20 Members · 30 Replies
@norman-oklahoma
Yes, it’s kind of what I said, early on. But I’m ok with the inconsistency of doing it differently in numbers vs words
All measurements have error, and acreage is a calculation, which in my mind is definitely worthy of a +/-.
Also, your CAD will come up with a slightly different square footage than when another surveyor punches in your plan and/or surveys it and comes up with the boundary by holding monuments.
It’s not always about area (which is a derived value), but when a course recites a “more or less” distance to a closing line or point, the intent is to hold the position of the established line or point. That is, the stated distance is explicitly junior to what it ends up being to reach that end point.
No…in your case it is never 2.54 or 2.55…truth is 2.5, any additional digits is obscuring the truth.
Not that I am always “holy” when it comes to significant digits. Certain precisions are required by code. For “more or less” or +/- to have any use, we would need to define how much more and less.
-All thoughts my own, except my typos and when I am wrong.That is always the case, right? When making a call to a bound (whether the starting point or a creek or a margin of a road) I have always taken the distance call to be “more or less” as needed to make the close. Meaning, it is implicitly “more or less” with or without those words. I don’t know that making it explicit is needed. (And if it is not needed…perhaps the fact of the calling to a bound makes it explicit? Need an english teacher!)
-All thoughts my own, except my typos and when I am wrong.- Posted by: @warren-smith
when a course recites a “more or less” distance to a closing line or point,.
Not just closing point of a traverse, but any found physical point.
. A surveyor, an engineer, and a statistician were hunting deer and they see a big buck. The surveyor takes a shot and misses 5 feet to the left; the engineer takes a shoot and misses 5 feet to the right. The statistician yells, WE GOT THAT SUCKER!
I hope everyone has a great day; I know I will!How about for a condo survey?
0.01ac is a whole condo or at least a big room.
I use +/- values all the time. When the boundary is a water boundary, such as mean high water, mean low water, etc., the area of the property and ties from monuments to the water boundary is always +/-.
One time we were asked by a HOA that was having a beach access dispute with one of the members. It was a sandy beach area. We surveyed it, topo’d to death. Determined the horizontal location of the MHW line, we went back 2 weeks later to stake the line and the location of MHW had changed significantly. In the intervening 2 weeks we had a king tide coupled with a strong nor’easter which moved the sand around, and therefore the ownership line.
%%P
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