Open AccessRetention Pond and Pump Station as an Alternative To Flood Management In Bengawan Jero Irrigation Area
Author(s) -
Sabdoyono Wiyasa Harimurti
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/858/1/012004
Subject(s) - hydrology (agriculture) , flood myth , environmental science , flood control , irrigation , hydrograph , volume (thermodynamics) , wet season , geography , ecology , geology , geotechnical engineering , physics , archaeology , quantum mechanics , biology , cartography
Water is the source of life to all living organisms. But in a very large volume, water can be problematic to life. One of problems generated by a large volume of water is flood disaster. River, as a water source, is one of natural resources with multifunction to human beings. Some areas in Indonesia have increasing flood intensity as the rainy season comes. Retention pond and pump station is one solution to dealing with flood puddle occurring in area. One of areas experiencing flood routinely annually is Bengawan Jero Irrigation Area (D.I. Bengawan Jero). The design of retention pond and pump station in DI Bengawan Jero was calculated using flood flow rate with repeated period of 10 years. From the result of rainfall data processing with repeated period of 10 years using Nakayasu method, it could be found Q planngci of 7.37 m 3 /s at hour 1. The storage volume needed to deal with flood in the Retention Pond in Bengawan Jero Irrigation area is 3.909 m 3 , using 2 pumps with capacity of 2.5 m 3 /s. From hydrograph analysis, it could be concluded that the use of retention pond and pump station can control the peak flow rate by suppressing or cutting the flood peak to occur.