I-propy riber yomsebenzi ineengenelo zokuchaneka okukhulu, ulwakhiwo olulula, lubuyiselweyo, ekulula kunye nokusebenza ngokulula. Ingaxhonywa okanye itsaliwe ekuphoseni indawo ngokudibeneyo, kunye ne-demodred ngokuhambelana okanye i-piecemaal emva kokufumana amandla, emva koko ukhuphe ubunjike obukhulu. Kukufaka ngesandla nokufaka ingxaki, ukuqina komsebenzi ophantsi, kunye nokusebenza okuphezulu.
I-Bridge Viadcuct yahlulwe ngokwamacandelo amancinci, ekwakhethiwe kwi-Work Mining Gact ityhila eyadi yeyadi, emva koko, yasiwa ekufakweni kwezixhobo ezilungileyo zokwakha.