Abstract: The present disclosure provides for an electrical utility temporary crossarm for quick connection to a crossarm of a utility pole. An end cap retention member is removably connected to a proximal end of an elongated crossarm of the electrical utility temporary crossarm and has an annular wall that includes one or more locking ribs arranged longitudinally and extending radially outwardly. A horn cap and a horn base is provided where each has a concave portion which defines a longitudinal support channel configured to receive the locking ribs in lock and key style arrangement. A wire holding member disposed on the distal end of the elongated crossarm member for receiving and securing an electrical wire.