Drive and steering attachments for application to and use with scaffold units of the type used in connection with construction and maintenance activities. A reversible drive motor associated with one scaffold support drive and steered wheel propels the scaffold and a motorized steering apparatus having an operative anchor that is fixed with respect to the scaffold unit moves the drive and steered wheel pivotally with respect to a vertically disposed axis of said scaffold for the directional control of said scaffold. The drive and steering motors are connected to a control panel that is movable to various elevated and/or remote locations. A power cord having a pivotally mounted and spring biased trailing arm is attached to the scaffold to prevent trapping of or damage to the power cord.