Describing a circle

With a center point and a radius (or diameter) just as you stated.

EDIT:

Not trying to be short, but simple is good.

"All of that area within a 150 feet (75 feet radius) diameter of the tower base, less and except the following tract:..."

Describe the center of the tower and give coordinates of the radius point and a tie to the outbound. Then state the radius, diameter, and whatever else. Pretty sure that's what I would do. Are you on any kind of geodetic datum?

Disclaimer - I'm not a pro.

If the site is a rectangle taken entirely out of one adjoiner, then just describing the circle is a good start. You also need something to indicate where it is - such as distance from the site tract corners.

If it intersects a boundary I'd think you need to describe the boundary just like you would a property line with a non-tangent curve.

Maybe: From the SE corner of Lot XX 57.31 ft westerly with the property line to the point of curvature of a circular curve concave to the south, which curve has a radius of 75 ft and a tangent bearing of N 38 W, thence along the curve an arc distance of 93.52 ft to the end of the curve on the property line, thence YY.yy feet along the chord to the beginning point of curvature.

What Paden said.....

:good:

-JD-

Thanks guys, I think I have it figured out. As you all have stated, I will describe to the center of the tower, stating the radius and diameter, also tie that center point to two of the interior site corners and less and except the whole parcel inside. Just for good measure, I will put a lat. & long. and my State Plane coordinates of that center point on the drawing.

Call to the physical tower as the monument if the tower is already existing. (and everything else you said.) If there is any discrepancies in the math, this will be a call to a monument to hold over the mathematical discrepancy.

"Being a circular figure having a radius of XXX, the centroid being located South XXX and West XXX feet from the Northeast corner of Lot bla-bla, then save and except something else if needed.

I have done several like this for a sanitary easement around a water well.

Chad, this is not uncommon to make a call to a radius point with a bearing and distance from a known point from your survey. It is specific and unique, and can be retraced. As noted, if the tower is in place then use that as the controlling point. Which actually is the better option IMO, kind of an as built scenario, especially considering they own (or leaseholders) of the property in play.

PS - welcome to the best survey message board on the planet. Thank Wendell & his crew, and all the other surveyors out there who contribute.

Oh, and Go Royals!!!

I Would Suggest Two Ties To Points On The Circumference

Possibly three from various property corners and describe between them along the curve. This gives a better reference to points on the ground beyond inside or outside the easement. If the property corners are occupiable and visible to the tower include tower azimuth and/or distance or backsight corner data.

Paul in PA

I think you're on the right track but I wouldn't focus so much on a geodetic coord as they do tend to shift. Take care of the diameter and intent in the preamble. Then I would make a call from a sideline of the tract, something like "all that portion of xxx tract lying within a 150 foot diameter(75 foot radius) easment, the center of said easemeant being more particularly described as follows: .bear/dist along the southerly line of said tract; thence northerly and at right angles to said southerly line, bear/dist to the center of a tower and being the center of the herein described easement.."