California Surveyors Forums

We need to do a bunch of cross sections in a steep and brushy riparian corridor in which somewhat less refined measuring techniques will be necessary. I've used the mechanical EZ Arc in years past for reducing slope distances to horizontal and vertical, but it seems to have gone the way of the dinosaur with the advent of electronic hand held measuring devices. Does anyone have any suggestions or recommendations?

Thank you,

Mark

Mark,

Call or email me at State Parks - I own an EZ Arc.

Thank you for your generosity, Mr. King. : )

The only EZ Arc I could find on the web was listed on E-bay last month by Oregon State University and had already sold for an eye popping $18.63! It was like new and in the box with the manual and other documents.

I will contact you further on this through private e-mail.

On behalf of DWR, I would like to thank Mr. King for his generosity in loaning us his personal EZ Arc Slope Reducer for measuring cross sections along Putah Creek in Yolo County. Having it at our disposal was truly a blessing and we were pleasantly surprised how well our closures were, when running between GPS control. It wasn't uncommon to close less than a tenth vertically, when incorporating a somewhat crudely attached laser rangefinder. : )

I will post a couple pic's of our project when I get a chance. Note: We used RTK also, as seen in one of the pic's.

Mark

Write an article for California Surveyor explaining how you incorporated multiple technologies.

Yes please, that is an article I would read.

Gentlemen,

Thank you for your interest. It would be an honor to do so but it might take me awhile to come up with something suitable for publication. (my kingdom for the kind of writing skills that Evan is blessed with) : )

CLSA Schoralship has one that did not sell at the Reno Auction. Actually called a Rhoades Arc, developed in the 20's to layout Highway 140 in the Merced River canyon.

Mike Welsh had a couple of them, don't know where they are now.

If that creek was any deeper you would need a taller rodman :)

Thanks, LB. That's me in the water. I'm on the tall side, but some of the work did require a boat.

I'm sure there is at least a couple of those in the Surveyor's portion of the warehouse at State Parks. I remember the wood boxes but maybe they were something else. They also have I think 4 T2s in really good condition.