Evaluation of Housing Drainage System (Case Study of Teacher Housing Complex in Tolitoli District)

Abstract

The drainage channel system in urban areas is very important because the drainage channel system is a means or infrastructure for draining rainwater from one place to another, for example from residential complexes to disposal areas such as main canals, rivers, lakes, seas, and so on. Most of the Tolitoli city area often inundates at certain times where during high tide and when it rains there is an overflow of water which should not have happened. The data needed to become a reference for evaluating the drainage system are the dimensions of the channel, the area of the study area as primary data and ground elevation, population data as secondary data. The data obtained is analyzed in order to obtain the difference in ground level, the height difference at each point of the drainage channel, the dimensions of the existing drainage channel and the depth of sediment in the drainage channel so that the cause of the drainage system not functioning properly can be identified. The results of the data analysis show that the cause of the non-functioning drainage in the teacher's housing complex is due to sedimentation at the bottom of the channel which causes the function of the drainage to not be optimal. The existence of these sedimentation deposits can affect the elevation of the drainage channels in the teacher housing complex, so that water cannot flow. Therefore, it is necessary to maintain the function of the existing drainage channels in the teacher's housing complex. Efforts that can be made as a step in handling the drainage problem is dredging the sediment at the bottom of the drainage channel so that it can function optimally