#TITLE_ALTERNATIVE#

• Main Author: Fiqri Al Akbar ( NIM :15713023 ), Muhammad
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/23232
• Institution: Institut Teknologi Bandung

Kecamatan Coblong is one of Kecamatan located in Bandung. Kecamatan Coblong has 6 Kelurahan and its area is about 743.3 hectares. It is located 770 msl. The rapid development in Bandung increases the amount of building and reduces the recharging area. Average of rain drop in Kecamatan Coblong is about 2,665 mm/year. Topography of Kecamatan Coblong is relatively tilted and some area in Kelurahan Sadang Serang is formed by hills. One of solution that can be applied to resolve water overflow in Kecamatan Coblong is build a drainage system using environmental approach. In order to resolve that problems, it is needed to clean the water conduit, recalculate dimension of conduit, and conduit development. In this study, Rain intensity is picked from several raining period, 5 years period for tertiary conduit, 10 years period for secondary conduit, and 25 years period for primary conduit. The result of hydrology calculation showed that amount of rain drop during 5 years period is 101.875 mm/day, 10 years period is 117.168 mm/day, and 25 years period is 136.491 mm/day. Cikapundung, Lebak larang and watershed has been chosen as a study area for this environmental drainage system application. The planned retention pond is 3 pieces with a total discharge capacity of 4.06 m3 / s and is capable of absorbing water of 35,074,940 m3/year. The planned drainage channel is 22,620 meters. Channels are built using precast concrete materials. Channel equipment in the form of culverts, street inlet and outfall. The total culvert to be made is 45 pieces. The total planned outfall amounts to 11 pieces. The cost of repair and channel development in Coblong Sub-district is planned to be51,743,505,098 rupiahs <br /> <br />