TWJO-1-TCD-DPT-0006-Rev D PAGE 13 / 33
Internal drainage system in the depot area is planned to connect with the existing box culvert as receiving water. Base on the redesigning existing drainage, the proposed culvert is bigger than the current size. The culvert has the function as water receiving/ outlet of the internal Depot drainage. The proposed culvert is the reinforced concrete canal with concrete cover on the top.
The existing drainage system surround of the Depot area has been redesigned to the required size based on new rainfall intensity and inflow from internal Depot area.
The comparison of the current culvert size and proposed culvert is shown in Table 2. The calculation sheet and the layout of redesigning of existing drainage culvert can be shown in Appendix C and Appendix K.