Our city has a non-potable "purple pipe" water supply system that parallels the potable system. The water they deliver is used for fire protection and...

Quite true. ±0.05' for finished hard surfaces, probably about ±0.2' for graded ground, and ±0.5' for natural ground.

Don't think in terms of contour intervals. Think in terms of the accuracy of your digital terrain model (DTM). In order to be able to effectively des...

BTW - your steel tape will lengthen in warm summer weather and contract as the weather cools. Also, the amount of tension you apply will affect the me...

I’m a Portland area surveyor and am familiar with that monument. It was damaged like that the first time I saw it in the mid 1990’s. Use the cross. ...

Interesting choice of job title given the expectations. It seems we have different ideas of what a "crew chief" does. I'm seeing "Senior Project Manag...

Oregon Revised Statute 92.050(8) requires radius, delta, curve length, and chord bearing and distance on subdivision plat curves. That law has been in...

Common practice hereabouts is to label lots with lot numbers or deed references. Addresses could be useful, too. The address of my own home changed wh...

Concave/convex calls are rarely used around here but do show up from time to time. Mostly in old deeds. Every surveyor should be prepared to handle su...

I entered the British Columbia Institute of Technology's Civil Engineering program in 1982 on the strength of a picture in the course catalog of a guy...

My approach with only a dc would be to run a random link traverse and then translate and rotate the resultant coordinates, as a group, onto the fixed ...

Here is a statement in a document from British Columbia which states that the radial bearing is from the radius point to the curve point. Or so it app...

I don't know about the 11 series, but I was able to hook up a TCRP1203 robot (c.2006) to CS20/Captivate by purchasing the appropriate radio handle (RH...

Maybe plan on attending a PLSO Conference. Tim often puts on a solar compass demo with one of the units he borrows from the BLMs stock

It doesn't mean anything, of course. But I don't like to leave a document in my files that contains the words "failed the chi-squared test" no matter ...

You do not. You report station coordinate errors, typically at the 95% confidence level.

I was told by someone who should know (Tim Kent) that there are about 20 of them in very serviceable condition gathering dust in a closet at the Portl...

Radial Bearings are not used in Oregon. They were in B.C., but its been a long time since I was there so I can't remember the custom. I'd say that if ...

For many years I created separate dat files for each day of data collection. For the last couple years I've taken to accumulating all the data in a si...