Suppose you found a classic bent 1/2? rebar - supposedly 24? long with the top 6? bent perpendicular to the ground. The lower portion appears straight and vertical. The ??bend? is within 0.1?? of your calc. It supposedly marks an angle point between 2 lines each 330?? +/- long. What do you do? ?ÿ( poll buttons show up in edit mode)
If the bent rebar is solidly set then I will carefully straighten it. If not, spin it, remove the bent rebar, and shoot the hole. Keep in mind that it is a badly bent rebar so the damage is done - you are just trying to shoot the most likely place it was originally set.?ÿ
2 or 3 depending on the bend, how vertical the portion below ground is, and if I CAN straighten the bar.
Andy
What rebar?
JK
I'd replace it, bury it alongside as a memorial.?ÿ
If it is on my client's boundary then I usually make it plumb via choice 2 or 3.?ÿ Especially if it will be used in construction.?ÿ If it is an adjoiner monument then it depends on my mood and the amount of effort required as well as the age and pedigree of the monument.?ÿ Generally I try to make things easier for the next guy and preserve the old monuments that don't get many visits.?ÿ?ÿ
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Being in a recording state affects how I treat this situation. If I'm engaged in a project that will result in a Record of Survey I'll initially tie the base or the spinhole. After analysis?ÿ I'll return and straighten the monument if it isn't too bunged up or remove and replace with my own if it is. And note just what I've done on the recorded map.?ÿ
If the project is not to result in a recorded map -ie/ a topo or a preliminary investigation -?ÿ I tie the base or the spinhole and leave it as I found it. Messing with it beyond that triggers the recording requirement, the $430 recording fee, the many hours of map preparation, the months of back and forth addressing County Surveyor comments to get it recorded.?ÿ ?ÿSo I'm not going there without someone willing to foot the bill.
I??d tie it in where it goes in the ground. Ultimately it would depend on the record and other evidence found. ?ÿIt??s not over till the fat lady sings and she doesn??t sing until I tell her.
As said above, if it's not on locus, I'll shoot where it goes in the ground.?ÿ If it's on locus, and can be straightened, I'll do that.?ÿ Hell, I've even dug and straightened a 8"x12" fieldstone sticking out of the ground 3.5'.?ÿ Doesn't seem much point in locating something other than where it was planted
Suppose you found a classic bent 1/2? rebar - supposedly 24? long with the top 6? bent perpendicular to the ground. The lower portion appears straight and vertical. The ??bend? is within 0.1?? of your calc. It supposedly marks an angle point between 2 lines each 330?? +/- long. What do you do? ?ÿ( poll buttons show up in edit mode)
None of the above. Remove rebar, set on the ground...set a straight rebar and cap...show and tell on the ROS.
In otherwords, count me a plus one for Norman Oklahoma's procedure.
When I see a note on a survey map like "Found Bent, tied spinhole. Held for corner. Rehabilitated monument ....." I know that the spinhole very likely was within a half a foot or so of the position the surveyor needed it to be to fit his preferred resolution. I mean, how do you argue with that??ÿ It's a wildcard in boundary surveying terms.?ÿ ?ÿ?ÿ
When I see a note on a survey map like "Found Bent, tied spinhole. Held for corner. Rehabilitated monument ....." I know that the spinhole very likely was within a half a foot or so of the position the surveyor needed it to be to fit his preferred resolution. I mean, how do you argue with that??ÿ It's a wildcard in boundary surveying terms.?ÿ ?ÿ?ÿ
Well, in a recording state, not having a previous record or a cap may make a bent over rebar suspect in any case. The history and nature of the monument matters. For the sake of this discussion, I was assuming that there was some determination to hold the found rebar.?ÿ
If it isn't held as being a monument on the corner, then my answer changes.
in a recording state, not having a previous record
Recording stars haven't all been recording forever, so you have to consider the age.
That is correct, Bill.?ÿ The younguns around here need reminded of that on a regular basis.?ÿ What we view as standard today has little resemblance to 10 years ago, or 20 years ago, or 30 years ago, or.................................................................190 years ago in my case.?ÿ The only exception for me would be bumping up to the Missouri border which is around 200 years old.
For the sake of this discussion, I was assuming that there was some determination to hold the found rebar.?ÿ
Just sayin' that if the math says the monument should be maybe 1/2 foot from your spin hole location who is to say that 1/2 foot from your spin hole location isn't where is was before it got wacked??ÿ?ÿ
The op states the rebar is bent at only the top 6" and the center is determinable and stable. Why are you going through the extra effort to alter a more original monument ??ÿ It's evidence and holds position.?ÿ Someone later may need to see it for whatever reasons there are.?ÿ You're the only one who can determine the center of a 'spinner' ???
A 1/2" rebar is a pathetic monument it's embarrassing to the surveying profession.?ÿ
This is comming from a junior at VU, but I would like to hear the critique. Step one is not overthinking the given situation. #4 rebars are a common occurrence in my area. I would shoot it at the bend and note what was going on around it. I would note if the area has been disturbed and could explain the bend. It calcs nicely. Half to all of the?ÿ 0.1' could be errors in measurement. It is also within tollarences of setting a point. I would apply this to the types of jobs I am involved with. I usually work I the rural area. Most landowners will not care about 0.1'. I would not turn, bend or modify it because the bend point is accurate. Flag, lath, and move on.
@mightymoe #4s had their time and place. It is a disgrace for a modern surveyor to set one as a property corner.
Here in Ontario Canada we have to set at minimum a 5/8" square iron bar with our number on it, for important corners it's 1" square. 2' long unless you hit rock and it's going to be drilled in, 6" or 12".?ÿ
Rebar is only for some foundation pinnings around here. The upside is our bars are a little harder to destroy then a rebar, the downside is you can't usually tell for sure whether it's been hit and disturbed, or it was set that way because they hit a rock and it went sideways. The bend is usually well below the finished grade and not visible unless you pull the bar out.?ÿ
Most of my time is spent doing construction surveying in subdivisions so I'm mainly here to learn more about this stuff..but being that I can't tell if an old monument is damaged I'm going to shoot it where it is first and see how it fits the plan, then go from there. If I can see where it bends I'll shoot it there.?ÿ
