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fred · 06-20-2009, 05:57 AM

If you don't have a plat, the nextthing I would do is look at a topo and look for a USGS benchmark. If there is one nearby you can get the elevation there. If you're lucky and it is close enough to you you can get a pretty good idea just by eyeballing or with a hand level.

A local surveyor who's been in business for a while is going to have all kinds of data handy for marks that he has run and has confidence in without re-inventing the wheel and going back to the BM. That's what he's going to use if you hire him to do a complete survey and expose his insurance-which is a <U>major</U> consideration in cost these days. If you shop a bit you may find one that will give you a cheap price as he knows he already has the data.

If you tell me the area I can zoom in and senda piece of the topoto you. I'm not telling you to trust the topo contours, but it will show you what readily availablebenchmark there is near you. The contour interval on that sheet is 2 meters and they say their data marks (not benchmarks) are to within 0.1 meter.

06-20-2009, 05:57 AM	#10
fred Senior Member Snapper Join Date: Dec 2008 Location: Pelham, AL Posts: 418	RE: Above sea level? If you don't have a plat, the nextthing I would do is look at a topo and look for a USGS benchmark. If there is one nearby you can get the elevation there. If you're lucky and it is close enough to you you can get a pretty good idea just by eyeballing or with a hand level. A local surveyor who's been in business for a while is going to have all kinds of data handy for marks that he has run and has confidence in without re-inventing the wheel and going back to the BM. That's what he's going to use if you hire him to do a complete survey and expose his insurance-which is a <U>major</U> consideration in cost these days. If you shop a bit you may find one that will give you a cheap price as he knows he already has the data. If you tell me the area I can zoom in and senda piece of the topoto you. I'm not telling you to trust the topo contours, but it will show you what readily availablebenchmark there is near you. The contour interval on that sheet is 2 meters and they say their data marks (not benchmarks) are to within 0.1 meter.