imaudigger...that may very well be the answer! Abandoned in 1934, little maintenance since then.

I thought about a big magnet. Not sure how much of the equipment is actually steel.

Stephen Ward, post: 377411, member: 1206 wrote: Probably just a coincidence, but it jumped out at me that the .55 difference you mention added to the ...

I thought about it being hotter on the concrete, that would make the distance even shorter (tape expanded). We do annual/biennial deformation surveys ...

I should add that when I started in surveying in 1981 at the USACE, we only had two EDM and four crews, so we still did a LOT of chaining (200' steel ...

We work all the time on the river locks, never lost one like this, the difference is that it is abandoned, so no one around and it is overrun by geese

Scott: my SOP is to reduce (and store) all observed distances to M-M distances (Dg), which is what is used for all subsequent comps (3D). I also reduc...

My point is that as scanning becomes more common, there will be a lot more data available for design. We use the scanner for all topo's now. It doesn'...

Three words...should've scanned it. A point cloud would clearly show rails, ties, ballast, etc.

While the rigorous way to do it would be to use the azimuth of the line, for normal work it makes little difference. A much more critical error is whe...

This was often done to provide an origin for a geodetic datum in remote locations, such as an island. In fact, the coordinate used at MEADES RANCH as ...

I recently had to use some custom made field books for a government agency. They had them setup for GPS observations, although I did not like their la...

I put a bunch of data on tapes, and when I tried to access it the tapes were bad (or the drive was bad). I guess we are all showing our age!

Good advice. I will clone the drive after it is finished. I will also keep all of the disks, I just won't have to search through them anymore.

summerprophet, post: 371664, member: 8874 wrote: I actually looked into engineers without borders (as a surveyor). Sadly, unless you are part of a meg...

Matt: that would be great, thanks