Sometimes you get lucky in life. If you're really really lucky you get to radius' that is more like an ellipse.
Of course the hard thing is like all things hard, getting started. Since I do it by myself I try to find the easiest way. For me the easiest way to lay out a large radius if I can't pull it from a center point is with a water hose.
I lay out the water hose where I want the fence holes to be and then I mark it out. That is the easy part.
Here I have the road and it provides me with two challenges. The first of course is the radius isn't a radius as such. Secondly I have the pavement being as irregular as any anarchist.
So I laid out the water hose where it gave me what I thought was a consistant look.
Setting the posts is another challenge. It isn't as easy as just putting them in the middle of the hole and them concreting them in. An inch one way or another on a slow radius like this will not only affect one post, it'll affect about three.
There's nothing uglier than seeing a radius that weaves in and out in a fence line. It says the person who installed it either didn't know or even worse, they didn't care.
So when you are offered the opportunity to do something difficult that should require skill and dedication you are lucky. Yesterday I got lucky.