PERENCANAAN ULANG SALURAN DRAINASE KAWASAN JALAN KENDALPAYAK - JALAN SIMPANG PAKISAJI KABUPATEN MALANG

On area Jl. Kendalpayak – Jl.Simpang Pakisaji Malang Regency, inundation often occurs during the rainy season. The occurrence of this flooding is caused by the insufficient capacity of the drainage planning, waste in drainage channels to accommodate the discharge of rainwater runoff, improper drainage planning, waste in drainage channels, the amount of waste from households and the large number of closed drainage channels because they are made for community homes. The purpose of this thesis is to design drainage channels and infiltration wells, calculating construction costs as well as creating scheduling plans for job in the area. The method used in this study was the Log Person Type III with the re-planning for 10 years. The data needed are topographic maps, rainfall data from the closest stations: Kepanjen, Sukun, and Tangkilsari in 2010 until 2019, and the price of the Malang Regency work pricipil in 2020. The calculation results the design rainfall is 107, 33 mm/day; design flood discharge of 2,031m3/second; the infiltrations weels with dimensions of 0,7 meters with depth of 1,7 meters. The drainage channel dimensions are planned by the smallest size of 0,4 m x 0,4 m and the largest size is 1 m x 1 m with construction cost is Rp. 8,581,572,367.92 and the execution time is 18 weeks