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All Journal Rekayasa Sipil Dinamisia: Jurnal Pengabdian Kepada Masyarakat
Tantri Nastiti Handayani
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Civil Engineering, Building, Construction & Architecture Social Sciences Other

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Pengembangan Irigasi Mikro Tirta Wanagama Abadi, Kalurahan Mulusan, Kabupaten Gunung Kidul Endita Prima Ari Pratiwi*; Neil Andika; Tantri Nastiti Handayani; Ni Nyoman Nepi Marleni; Ali Awaludin; Fatchan Nurrochmad
Dinamisia : Jurnal Pengabdian Kepada Masyarakat Vol. 7 No. 5 (2023): Dinamisia: Jurnal Pengabdian Kepada Masyarakat
Publisher : Universitas Lancang Kuning

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31849/dinamisia.v7i5.15452

Abstract

Kalurahan Mulusan berada di Kepanewon Paliyan, Kabupaten Gunung Kidul. Mata pencaharian utama penduduk Kalurahan Mulusan adalah pertanian sawah tadah hujan. Pada musim kemarau, air yang tersedia sangat terbatas sehingga banyak lahan yang menganggur. Kegiatan pengabdian kepada masyarakat ini bertujuan mengembangkan irigasi mikro di Kalurahan Mulusan yaitu dengan meningkatkan ketersediaan air dan memperluas lahan yang dapat diairi khususnya pada musim kemarau. Kegiatan dilaksanakan pada bulan Juli sampai November 2021. Kelompok tani muda Tirta Wanagama Abadi, Kalurahan Mulusan, menjadi sasaran dan sekaligus pelaku kunci dari kegiatan ini. Kegiatan pengabdian kepada masyarakat ini juga mendapat dukungan finansial dari mitra industri teknik sipil. Hasil kegiatan ini adalah sebuah sumur bor baru, penambahan tangki penampungan air, perluasan jaringan irigasi pipa, serta hasil uji kualitas air. Kegiatan pengembangan irigasi mikro ini merupakan contoh nyata kolaborasi perguruan tinggi, masyarakat, dan industri yang diharapkan dapat meningkatkan produksi pertanian dan kesejahteraan masyarakat Kalurahan Mulusan.
Analysis of Impact, Causes, and Mitigation of Contract Change Orders (CCOs) in Transmission Line and Substation Projects Samuel Starry Yanuar; Nugroho, Arief Setiawan Budi; Tantri Nastiti Handayani
Rekayasa Sipil Vol. 20 No. 3 (2026): Rekayasa Sipil Vol. 20 No. 3
Publisher : Department of Civil Engineering, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2026.020.03.12

Abstract

Contract Change Orders (CCOs) remain a major issue in power infrastructure projects because they can affect both contract schedule and contract value. However, empirical studies examining CCOs specifically in high-voltage transmission line and substation projects remain limited. This study analyzes the impact, causes, and mitigation of CCOs in 150 kV transmission line and substation projects using a mixed-method approach. We conducted a quantitative analysis of historical data from 62 projects implemented in South, East, and North Kalimantan between 2017 and 2025, including Extension Substation, New Substation, and Transmission Line projects. We used descriptive statistics, Shapiro–Wilk tests, Kruskal–Wallis tests, and Dunn’s post-hoc tests to compare variations in schedule and contract value across project categories. We obtained qualitative data through semi-structured interviews with owners, engineering consultants, contractors, supervision consultants, and operation units. The results indicate that Transmission Line projects have significantly more variation in schedule and contract value than substation projects, particularly Extension Substation projects. Design and consultant issues, uncertainties about site conditions, gaps in stakeholder coordination, owner-initiated changes, regulatory and governance issues, land acquisition and right-of-way issues, and external factors are the main causes of CCOs. The results also show that land acquisition and right-of-way issues are a dominant project-specific driver for Transmission Line projects and often result in route adjustments, design revisions, quantity changes, and schedule extensions. This research contributes to change order management by providing sector-specific evidence for power infrastructure projects. It highlights the importance of early design maturity, site verification, stakeholder coordination, and land and ROW readiness in mitigating avoidable CCOs.
Co-Authors Ali Awaludin Endita Prima Ari Pratiwi* Fatchan Nurrochmad Neil Andika Ni Nyoman Nepi Marleni Nugroho, Arief Setiawan Budi Samuel Starry Yanuar