Morning folks,
Just checking in hoping to gain some domain knowledge from the experts.?ÿ I'm not a Surveyor but a hobbiest genealogist that was a Naval officer and Computer System Architect in prior lives.?ÿ I have an old deed that has a clean outer boundary. Closure less than 50 ft over 20K ft boundary.?ÿ It also has a line run on an interior feature of the property.?ÿ This line works fine to plot one part of the property but runs in the wrong direction for the other.?ÿ From what I can tell, to reverse the line I need to:
- ?ÿ ?ÿReverse the order of the points
- ?ÿ ?ÿSwap N&S then E&W
- ?ÿ ?ÿReplace the angle by subtracting it from 90.
Please correct my thinking if I'm wrong.?ÿ Or better yet point me to a source of online training.
Thanks, Mike
Welcome.
Your analysis is correct about reversing direction..., but not about changing the "angle".?ÿ The angle does not change.
That's the great advantage of bearings over other means of defining directions.?ÿ Simple go to the opposite quadrant as you indicated.?ÿ The numbers (degrees, minutes, (probably no seconds indicated - maybe the direction indicated could even be in fractional degrees with no minutes indicated) do not change.
To further explain bearings - The two North quadrants are directions referenced to the East or West of North at zero degrees. The two South quadrants are directions referenced with South being zero degrees. This results in bearings never being larger than 90 degrees (due East or West).
50 feet in a 20,000 foot metes and bounds description is pretty rough, only 1:400.?ÿ It's not unusual in old (19th century) descriptions because they typically did not adjust their survey just reporting the compass bearing (sometimes corrected to true north) and chained distance.
For N 30?ø15' W the reciprocal bearing (opposite direction at 180?ø) is S 30?ø15' E.
Likewise for N 45?ø30' E the reciprocal bearing (opposite direction at 180?ø) is S 45?ø30' W.
Sometimes they are referred to as numbered quadrants:
1 - NE
2 - SE
3 - SW
4 - NW
Since you are new...
If you were to post the deed, you would might be shocked at the amount of free expert work that gets performed in a day. It seems surveyors like new problems, and are easily distracted by the latest rabbit. And, right now given the weather and time of year, some might even be looking for distractions. Middle of summer your odds go down.?ÿ 🙂
Details always get better answers. But, if you post any details, it will also surprise you how soon someone will use the little metadata you provide to quickly narrow down exactly what property you are talking about. That isn't necessarily bad.
Deeds that don't close. Can have hundreds, and thousands of issues. It can be that multiple surveys were combined, by a la*yer., and had differing brg. Systems.
It can be in one place. It can be cumulative. It could be a very good old survey.?ÿ
Surveying is not for those who assume too much... Or too little!
N
To reverse the direction of a line swap north for south/south for north and east for west/west for east. Simple.
None of that 90?ø stuff. Don't do that. That may apply to directions given in azimuths, which you may be accustomed to from your military experience. But I very much doubt that is what you have in a deed.
Finally, don't get too hung up on the quoted bearings and distances. Those are mainly there to help you find the called for monuments. It's those monuments that really matter. And the professional part of Professional Surveyor is figuring out what to do when the monuments can't be found. Those monuments are commonly irons rods and pipes but may also be lines of adjoiners, trees, fence lines, buildings, creeks, topographic features, etc.?ÿ ?ÿ ?ÿ?ÿ
Thanks to all who corrected my misunderstanding.?ÿ And especially the gentle education & explanation, not the snarky trash one sees on so many other forums.?ÿ In that light here is the whole survey with the data in PlatPlotter format.?ÿ If I set declination to 2.85 deg the plot matches terrain features correctly.
s 66 05 00 e 999.5
s 62 35 00 e 100
s 58 35 00 e 100
s 54 50 00 e 100
s 50 50 00 e 100
s 46 50 00 e 100
s 46 00 00 e 100
s 41 20 00 e 100
s 40 15 00 e 100
s 38 45 00 e 150
s 35 30 00 e 150
s 31 10 00 e 100
s 26 35 00 e 100
s 21 25 00 e 149?ÿ ?ÿ ?ÿ-- Reversed portion joins mid-line here
s 15 35 00 e 100
s 12 30 00 e 100
s 10 30 00 e 558.5
s 12 50 00 e 100
s 15 30 00 e 100
s 19 15 00 e 100
s 23 25 00 e 125
s 26 30 00 e 613.5
s 26 35 00 e 805
s 89 00 00 e 1287
n 02 45 00 e 3450
s 80 30 00 e 308
n 02 15 00 e 2444
n 65 45 00 w 55
n 71 45 00 w 78.5
n 64 45 00 w 326
n 89 15 00 w 175
n 43 00 00 w 78
n 41 00 00 w 267
n 65 35 00 w 215
n 58 20 00 w 110
s 86 50 00 w 100
n 77 30 00 w 138
n 63 55 00 w 188
n 87 15 00 w 159
s 84 15 00 w 140
s 78 25 00 w 152
n 50 15 00 w 99.5
s 00 00 00 e 2186
n 57 00 00 w 231
n 88 00 00 w 1584
s 40 00 00 w 673.5
n 64 39 00 w 327.5
s 14 35 00 w 248.5
And the portion to the South, where I needed to reverse the line.?ÿ The data is in TractPlotter format.?ÿ Both sites give similar results.?ÿ The terrain is heavily wooded and often steep.?ÿ Grade change of close to 200 feet.?ÿ The Survey was from 1966.
s21.25e 74.5
s15.35e 100
s12.30e 100
s10.30e 558.5
s12.50e 100
s15.30e 100
s19.15e 100
s23.25e 125
s26.60e 613.5
s26.35e 805
s89.00e 1287
n02.45e 3450
s80.30e 21?ÿ ?ÿ ?ÿ ?ÿ ?ÿ--- Reversed portion starts here
n80.50e 143
n43.40e 106
n28.00e 200
n36.50e 100
n41.00e 100
n51.20e 208
n54.05e 100
n60.30e 100
n67.30e 243
n72.15e 284
n77.05e 100
n82.15e 200
n85.00e 795
?ÿ
