Something older surveyors who have had a long career sometimes deal with...

i-ben-havin · 2018-07-13T16:34:00Z

After an interesting discussion with a county property appraiser today I would like to know others take on the following:For sake of discussion lets assume around 1965, in the early career of a surveyor, his/her equipment consisted of a 100 foot steel tape, and a 1 minute transit. And, lets say at the beginning of the surveyor's career he/she goes out and runs a traverse around an entire section (PLSS, 1 mile square +/-) from found monument to found monument, etc. The surveyor then computes and draws out the entire section, and over a period of time conducts surveys and prepares metes and bounds legal descriptions eventually covering the entire section. At that point, one (the county property appraiser for example) could take the legal descriptions, lay them all out, and like in a puzzle the pieces would fit perfect. There would be no gaps. No overlaps, etc.However, around 2010, having upgraded his/her equipment to 1 second total station and dual frequency GNSS, the surveyor goes back out and re-runs the same section. The surveyor then computes and draws out the entire section. And, not surprisingly, all the dimensions changed. What to do?Should the surveyor be expected to continue using all of his/her old (original) dimensions for the entirety of his/her career? Notwithstanding the fact that other surveyors would come in and understandably use their own dimensions, however, is there some expectation that a surveyor can not or should not change his/her own dimensions?In addition to typically showing both the field (current measure) and deed (original) dimensions on the map what about further subdivisions of an "original" parcel. Should the surveyor be expected to describe the new splits as would be determined by their deed (original) dimensions?At what point is it ok for the surveyor to begin using the more accurate new measurement data when preparing legal descriptions, whether for resurveys of old original parcels or for new splits?(Perhaps some surveyors started out with a compass and chain in 1800's, then upgraded to 1 minute transit as soon as he/she could purchase one. Equipment and methods are always changing, and legal descriptions today mostly do not resemble those from the 1800's. NOTE: I can recall looking at a tax map back in the 1980's from a county in an Original Colony State, and many of the adjacent properties were depicted with dual lines because the dimensions were different. The mapping people had no idea how to map adjacent parcels with different bearings and distances even though on the ground there was a common boundary.)

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Strictly Surveying

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thebionicman

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If I blew it and failed to meet the standard of care I'll talk with the owners and clean it up. If the monument has bern disturbed I'll reset it.. If I find a pin I set in 79 with my T2 and chain and miss by 0.15 I'm likely going to leave it alone.

Posted : July 17, 2018 9:36 am

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Something older surveyors who have had a long career sometimes deal with...

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