A method for manufacturing a tower structure, the method including printing and depositing, with at least one variable-width deposition nozzle of a printhead assembly, one or more layers of at least one wall element of the tower structure, the at least one wall element having an outer circumferential surface and an inner circumferential surface. The method also including forming, with the at least one variable-width deposition nozzle, at least one void into the at least one wall element. The method also including placing at least one reinforcement member within the at least one void so as to position the at least one reinforcement member closer to a neutral axis of the at least one wall element than at least one of the outer circumferential surface or the inner circumferential surface.