Evaluasi Sistem Drainase pada Daerah Irigasi Ular di Kawasan Sumber Rejo Kabupaten Deli Serdang

Abstract

Drainage canal in irrigation system must be able to hold excess of water and run off from irrigation system. If the dranage canal could not hold the excess of water and the run off flood would be happened. To plant the flood discharge the Rational Method can be used. In this research the data comprised of rainfall and land use data. Rainfall data were transformed into hours intensity rainfall trough Mononobe Method. The changes of land use at Sei Ular Irrigation area in Sumber Rejo gave significant impact on flood discharge. Evaluation of drainage system in Sumber Rejo must be done to get the capacity of drainage canal abd to predict flood. It could be concluded from te evaluation result that drainage canal in Sumber Rejo could not hold the flood discharge