Analisis Normalisasi Sungai Baubau

Abstract

River normalization and cliff strengthening are efforts to controlflooding that occurs in rivers such as the Baubau River. In 2012, therewere floods in 20 spots due to the overflowing of the Baubau Riverso that a flood prevention plan is needed.This study aims to determine the method of flood management inthe Baubau River, with variable of cross-sectional areas (1) rivertopographical data, (2) land use and soil bearing capacity (1) soilshear force, (2) rolling force and the river length studied is about 1.3Km.The results of the analysis show that the flood discharge of BaubauRiver is (1) 10.69m3/s, 2 year return period, (2) 15,39 m3/s 5 yearreturn period, (3) 18,50 m3/s 10 year return period (4) 22,43 m3/sfor 25 years, (5) 25,35 m3/s for 50 years, (6) 28,25 m3/s for 100years, so the handling method used in the Baubau River is tonormalize the river with a trapezoidal model (b = 3,69 m, B = 10,40m, h = 3,20 m, H = 4,46 m, and W = 1,26 m for the 25 year returnperiod) and the strengthening of cliffs on the right and left of thetalud model ( h = 5.7 m, bottom width 3.5 m, and top width 0.5 m).