Iphaneli yayo yomculo inkulu kunephaneli yebhulorho ye-bailey kodwa ulwakhiwo lwephaneli lulula. Zonke iinqununu zifakwe kwi-bolt ukuze ibhuloho isetyenziswe njengebhuloho esisigxina ngenxa yokuphambuka kwayo encinci.
I-D-Type Big Span Steel Bridge isetyenziswe ngokubanzi ekuhlanguleni nasekuncedeni iintlekele, ubunjineli bezithuthi, ubunjineli bokugcinwa kwamanzi kamasipala, ukuqiniswa kwebhulorho eyingozi, njl. Ukongeza kwibhuloho yentsimbi elungele imfazwe.
1.Isakhiwo esilula
2.ukuguquguquka okunamandla
3.ukutshintshiselana okulungileyo
4. ixesha elide
5.ukugcina iindleko
6.usetyenziso olubanzi