Abstract: A bolt extender includes a bottom portion defining internal threads and a multi-sided outer surface, an upper shoulder, and a threaded rod projecting upwardly from said upper shoulder.

Abstract: A method for making a field repair on a hollow pole includes installing a sleeve spaced outwardly from the hollow pole and extending from an elevation above the top elevation of the damaged portion down to the concrete foundation, filling the interior of the pole and the space between the pole and the sleeve with concrete from the foundation to an elevation above the top elevation of the damaged portion, which effectively extends the anchorline of the structure upwardly to encompass the damaged area of the structure.

Abstract: This invention is a modular pole assembly comprised of corner pieces and panel members. Panel members are slidably engaged to the corner pieces and are retained in a direction normal to the engagement direction by a track in each slot that nests within a groove in each panel member. Comer pieces may include multiple slots along each side, allowing for multiple layers of panel members along each side, thereby increasing strength and allowing an insulative and structural fill material to be added between panel member layers. The height of the modular pole may be increased by inserting splicing posts between consecutive, adjacent corner members and inserting splicing pieces between co-planar adjacent panel members. The modular nature of the pole assembly provides for simple packaging and shipment of the various components and easy assembly at or near the installation location.