Ningrum, Fitriyanti Cahya (2026) Evaluasi Kinerja Jaringan Irigasi Menggunakan Metode IKSI pada Daerah Irigasi Rejoso (Studi Kasus: Saluran Sekunder Rejoso Kiri dan Jati). (Evaluation of Irrigation Network Performance Using the IKSI Method in the Rejoso Irrigation Area (Case Study: Rejoso Kiri and Jati Secondary Canals)). Undergraduate thesis, Universitas 17 Agustus 1945 Surabaya.
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Abstract
Agriculture is an important sector in Nganjuk Regency that requires sustainable irrigation water availability. The Rejoso Irrigation Area D.I Rejoso still faces water distribution problems due to network damage, sedimentation, and inadequate maintenance, requiring an evaluation of irrigation network performance. This study aims to evaluate the performance of the irrigation network in the Rejoso Irrigation Area D.I Rejoso, particularly the Rejoso Kiri and Jati secondary channels, and to redesign tertiary channels that have experienced functional degradation. The method used is the Irrigation System Performance Index (IKSI) based on the Regulation of the Minister of Public Works and Housing No. 12/PRT/M/2015, which includes six aspects: physical infrastructure, crop productivity, supporting facilities, personnel organization, documentation, and Water User Association (P3A) institutions. Data were obtained through field observations, questionnaires, and interviews. The results showed that the IKSI value of D.I Rejoso was 64.3%, categorized as “Poor Performance and Requires Attention”. The low value was influenced by the documentation aspect (2.85%) and P3A institutional aspect (4.20%). Technical evaluation showed that the existing tertiary channel had a capacity of only 0.012 m³/s, lower than the planned discharge of 0.077 m³/s due to structural damage and sedimentation. The redesign of the tertiary channel was carried out using stone masonry construction with dimensions of 0.55 m bottom width and 0.50 m total height. The redesign results showed that the channel could convey a discharge of up to 0.118 m³/s, making it safe and optimal to fulfill irrigation water requirements for agricultural land.
| Item Type: | Thesis (Undergraduate) |
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| Uncontrolled Keywords: | IKSI, Irrigation Network, Redesign, Secondary Canal, Tertiary Canal |
| Subjects: | Q Science > Q Science (General) |
| Divisions: | Fakultas Teknik > Program Studi Teknik Sipil |
| Depositing User: | 1432200117 Fitriyanti Cahya Ningrum |
| Date Deposited: | 27 Aug 2026 03:16 |
| Last Modified: | 03 Sep 2026 03:33 |
| URI: | http://repository.untag-sby.ac.id/id/eprint/46556 |
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