Öz The reinforced conctete design of gallery dimensions in long life pit fbottom roads and plastic formations has been fully explained. The subject is dealt in three sections : In first section, in the application of rein forced concrete in mine supports, in second section, the desing of gatery dimensions and application of Terzaghi load table, in third section, a numetrieal texample is made on eocentrlcal tensional loads and amount of steel needed is determined and of ateel needed is determined and placed on the gallery section.