Abstract: A center pivot irrigation system including a plurality of towers having circumferential and counter-circumferential legs; circumferential and counter-circumferential pivot arms having proximal ends respectively pivotally attached to the circumferential and counter-circumferential legs; circumferential and counter-circumferential linear motion actuators respectively triangulating between the circumferential pivot arms and circumferential legs, and between the counter-circumferential pivot arms and counter-circumferential legs, the linear motion actuators being adapted for alternatively upwardly retracting and downwardly extending the circumferential and counter-circumferential pivot arms; and circumferential and counter-circumferential ground contact assemblies which are adapted for, upon the circumferential and counter-circumferential pivot arms' downward extensions, downwardly biasing against a ground surface.

Abstract: A center pivot irrigation system including a plurality of towers having circumferential and counter-circumferential legs; circumferential and counter-circumferential pivot arms having proximal ends respectively pivotally attached to the circumferential and counter-circumferential legs; circumferential and counter-circumferential linear motion actuators respectively triangulating between the circumferential pivot arms and circumferential legs, and between the counter-circumferential pivot arms and counter-circumferential legs, the linear motion actuators being adapted for alternatively upwardly retracting and downwardly extending the circumferential and counter-circumferential pivot arms; and circumferential and counter-circumferential ground contact assemblies which are adapted for, upon the circumferential and counter-circumferential pivot arms' downward extensions, downwardly biasing against a ground surface.