Abstract: This invention uses a hybrid of latticed steel and tapered tubular steel technologies. Namely, latticed steel and tapered tubular steel pole technology, to provide a more economical structural support with the advantages of each. It utilizes latticed steel hot-rolled angles for bracing elements and cold formed steel plate for main leg elements. The tapered geometry of the leg elements provides a more optimum utilization of material by the use of a non-prismatic (tapered) element profile. This element consists of a bent plate shape profile that varies in structural section modulus vertically along the height of the structure which optimizes the use of steel material to resist the applied structural loads. The arms include an invention that allows for post-tensioning and thereby provides deflection control and/or the ability to modify the natural frequencies of vibration to mitigate vortex induced vibrations caused by wind.