Need advice for doing topo survey of pond

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Strictly Surveying

Last Post by a-harris 9 years ago

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drilldo

(@drilldo)

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I just had a pond dug on my property. Maybe 1/3 acre in size. I want to survey it with RTK to get its size and volume. While it seems simple enough are there any tips for doing this? How close should I take measurements? It doesn't have to be super precise but the fish stocking people need this info for stocking rates.

Should I just walk around it taking a shot every five feet or so?

Posted : May 17, 2017 9:33 pm

Anonymous

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The basics are to log the changes of grade. However in a pond (for egs) a surface may seem even but it could be dished enough to make closer shots important for accurate work.
5 feet would be too close I imagine, more like 5 metres.
But for that quite small area extra shots won't take exorbitant time.
As a quick check you could log couple points say 15-20 metres apart, not around the "contours" but on the sloped sides, then stake the line between those points and see what vertical error is to natural surface.
It's hard to give a definitive spacing and for me it's personal observation of site that dictates the spacing.
Around the contours you may need closer spacing if it's circular, again due to the way the surface is created from point to point. It only knows what you give it.

Posted : May 17, 2017 9:48 pm