Composite structural support arm

A utility pole for supporting power distribution equipment, comprising:

• a vertically disposed pole;
• a mounting bracket secured to said pole;
• and
• a horizontally disposed cross arm secured to said mounting bracket, said cross arm comprising:
• an elongated support structure that provides all of the structural support of said cross arm, said support structure consisting of an outer surface, an inner surface, a first end, and an opposing second end, wherein said inner surface defines a hollow inner core that extends from said first end to said second end of said support structure, wherein said support structure is made of a monolithic fiber-reinforced composite that extends from said outer surface to said inner surface;
• wherein said support structure has a first pair of opposing sides defining a width dimension of said support structure and a second pair of opposing sides defining a height dimension of said support structure, wherein said outer surface of said support structure is rectangular in cross section;
• wherein said inner surface of said support structure defining said hollow inner core is curvilinear in cross section.