According to NERC (North American Electric Reliability Corporation) the federal supervisors of Ameren et al, trees can be within 4 feet of the power lines that are 100 or bigger. Mine are the big 345. Anything else they tell you that there can't be vegetation in the easement is a bold faced lie. That is a SELF IMPOSED restriction, not an actual law, unless Missouri passed a law Illinois doesn't have. In Illinois, I do have the right to make them stop working. We settled and I stuck in the knife and twisted. I had negligible legal fees, I did nearly everything myself.