Finding the survey starting point question

fried1765

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Nov 14, 2019
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Eastham, Ma
On my property in the high country, I knew where all 8 of the corner pins were- a rebar stake with a rock cairn around it.
I say knew, because the county culvert at the corner of the property plugged up, causing a huge monsoon rain runoff to backup & flood the area across the road from my driveway. When the water got high enough to reach the crown of the road, the road washed out to a depth of 5+ft, and 3-8ft wide, right at the point were my center pin was. (red star)
Afterward, there was a delta of approximately 2-4ft of roadbed material over the top if the pin, maybe 30ft wide & 50ft long.
I measured from the 3 adjacent pins, to where the pin should have been, and started digging. At about 30 inches, I got a signal from my metal detector, and found the pin about 6 inches further down, right where I had measured it to be. I slipped a short pipe over it, and inserted another piece of rebar, and filled it in.
When the property was surveyed, the surveyor said my pin was less than an inch off. :)

View attachment 89745
You are smarter than the average bear!
Nope, you got it wrong. Not THE PIN but an iron rod the surveyor was using as a property line marker. He was off for some reason. In that neighborhood a foot or two along the entire line could be thousands of dollars. He had to come back and move his iron to the correct location after several other companies went out and repeated the survey.
In a small town with a lot of rich people, the realtors hate to look bad and will more or less gang up and black ball any company in a related field that cost one of them money, time, or reputation.
This was decades ago but I would imagine the survey company had to work hard to get the trust of the local realtors.
You have to imagine a town that measures land by feet and inches and not acres.
A steel survey marker driven into the ground, is most commonly referred to in the survey profession as a "pin".
There may be colloquial use of the term "iron rod", but "iron rod" is synonymous with the term "pin", meaning iron pin("IP") or, iron pipe.
Other marker terms sometimes used are "DH",...drill hole in rock, and "CB",.... concrete bound.
 
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GreensvilleJay

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Apr 2, 2019
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Greensville,Ontario,Canada
Around here we have 'RB and SB' for Round Bar and Square Bar.... I'd have to ask a 'real' surveyor what they mean cause all the new kids do is play games on their fancy computer on tripod........