Sihlinzeka ngezixazululo ezenziwe ngokwezifiso zefreyimu yesikhala yezakhiwo ezinkulu, izindawo zokugcina izimboni, izindawo zomphakathi, izindawo zokugcina amalahle, amashede e-limestone, ama-trestles, izinkundla zezemidlalo nezindawo zemibukiso. Ngokuzinza okuqinile kwesakhiwo, idizayini ye-span eguquguqukayo, nokusebenza kahle kokufaka, amasistimu ethu ozimele wesikhala afanele amaphrojekthi adinga izindawo ezinkulu ezimboziwe, izakhiwo ezingasindi, kanye nokusebenza okuthembekile kwesikhathi eside.


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