Although I am not a surveyor, I get questions about
surveying from time to time so I thought the topic worthy of a post.
Purpose – The purposes of a survey are numerous, the most
common are: 1) Determine property lines and corners and 2) Determine the number
of acres in a tract or parcel of land.
Benefit – There again
there are many but I will only list a few: 1) Determine exact number of acres,
many properties are sold on a $ Per Acre, so the final sales price is determined
by a survey and 2) Discovery of encroachments including fences, gardens,
buildings etc
Process – Obviously with great leaps in technology and the
large number of satellites in use for Global Positioning Systems, surveying
techniques have changed as well and in my opinion not all for the best. A
decade or so ago, surveyors used transits to measure angles and distances. This
required having light of sight requiring the property line being cleared of
brush and limbs. This resulted in easy identification of the property lines
after the survey was completed.
Surveying today uses differential GPS requiring 2 receivers.
One receiver at a know position provides positional error correction to the
roving or working receiver. The corrections are transmitted in real-time by
radio link or preformed by post survey processing. Of course this provides very
accurate measurements but no line-of-sight. A survey can be completed now
without the property lines being marked or flagged on the ground. The use of
GPS technology allows the surveyor to move from corner to corner and usually it
is by the easiest and most convenient method.
Remember all the Sine and Cosine calculations in your Geometry class? Well survey accuracy is measured by ‘survey closure’. This is the
ratio by which the survey fails to close to the perimeter of the tract
surveyed. It is a mathematical exercise.
Here is the take away….If you want the property lines marked
and flagged, ASK FOR IT BUT THERE WILL BE AN ADDITIONAL COST!!
If you would like to see my listings, visit
AllSouthLandandHomes.com Questions about
buying or selling LAND? Contact G. Kent Morris, ALC, RF @ 706.457.0090
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