Fenceline repair

Our wooden back fence has started to show its age and one of the posts snapped in the last windstorm. The fence line now sags and is bracing up with some 2x4s to hold until repair. I suspect the whole back fence line needs to be replaced rather than repaired since is a lot newer than the side fences and those are in good shape. We back up to a green space so access on both sides of the fence is easy. We do not have a particular timeline for completion but it is a bit of an eyesore.