Effort of Inundation Handling Based on Environmental Concept in Drainage System at Subdistrict Panakkukang, Makassar City
Makassar City is one of the major cities in Indonesia, which is prone to flooding because the located adjacent to
the beach and has relatively flat topography. One of which is Subdistrict Panakkukang with a population of 145.132 habitants
and an area of 17,05 km2 is growing rapidly. When the rainy season arrives this area is inundated, and a problem that has not
been handled each year. Control inundation still using conventional system are considered ineffective. Therefore, the drainage
system is needed environmentally sound. In this research, data analysis with quantitative descriptive method and analyze in
hidrology and hydraulics. The first planning stages of inundation handling is done by collecting primary and secondary data.
Calculation of the period of rain with a period of 5 years for secondary channel and 10 years for the primary channel according
to the type of residential area of the medium city. Based on the analysis, there are 13 channels from 26 channels with a total
capacity can not accommodate of 2,32 m3/sec inundation discharge. Then alternative to dealing with issues such inundation
with as many as 648 pieces of recharge wells to be permeated with a total of 2,41 m3/sec inundation discharge.
Index Terms— Infiltration Wells, Inundation, Runoff, Subdistrict Panakkukang.