PENGELOLAAN DAN DESAIN SISTEM DRAINASE DALAM PENANGGULANGAN GENANGAN BANJIRBERBASIS SISTEM INFORMASI GEOGRAFIS

Abstrak

This research aims to manage and design drainage system, so it may work effectively in handling floodinundation based on the existing condition. This research has been carried out by collecting primary data and secondarydata. This research is processed by using Microsoft Office Excel to know the magnitude of rainfall in the next five yearsperiod and the big of channel discharge planned. The results of this study obtained the maximum quantity in the fiveyearperiod (Q5) of 0.688 m3/sec and for the design of the channel used three types of channels including the I-typesecondary channel with the channel bottom width (b) = 0.40 m, height (H) = 0.50 m, (w) = 0.40 m, secondary channeltype II with channel bottom width (b) = 0.40, height (H) = 0.50 m, wavelength (w) = 0.40 m and a tertiary channel type Iwith base width of channel ) = 0.20 m, height (H) = 0.25 m, high guard (w) = 0.20 m.