Izakhiwo zensimbiasetshenziswa kakhulu ezakhiweni eziphakeme, izimboni ezinkulu, izakhiwo zesikhala ezinde, izakhiwo zensimbi ezilula, nezakhiwo zokuhlala. Emabhulohweni anguthelawayeka kanye nomzila wesitimela, izitshalo eziphambili zamandla ashisayo namafreyimu ensimbi yokubhayela, imibhoshongo yokudlulisa nokuguqula, imibhoshongo yokuxhumana yomsakazo nethelevishini, amapulatifomu kawoyela asogwini lolwandle, izimboni zamandla enuzi, ukukhiqizwa kwamandla omoya, ukwakhiwa kwendawo yokonga amanzi, izinqwaba zamashidi ensimbi yesisekelo esingaphansi komhlaba, njll. Ukwakhiwa kwezindawo zasemadolobheni kudinga inani elikhulu lezakhiwo zensimbi, njengezitimela ezihamba ngaphansi, izitimela ezilula zasemadolobheni, ama-overpass, izakhiwo ezinobungani bemvelo, izikhungo zomphakathi, izakhiwo zesikhashana, njll. Ngaphezu kwalokho, izakhiwo zensimbi nazo zisetshenziswa kabanzi ezakhiweni ezincane ezingasindi ezifana namashalofu ezitolo ezinkulu. isikafula, imidwebo eyisikwele, imifanekiso eqoshiwe namahholo esikhashana emiboniso.