Analysis of Irrigation Water Needs and Availability Calculation in Loa Kulu with Construction Management Integration for Optimizing Water Management
Keywords:
Cost Optimization, Economic Feasibility, Irrigation Canal RehabilitationAbstract
This study aims to optimize cost planning for the rehabilitation of the Rempanga – Bukit Biru irrigation canal in Tenggarong, Kutai Kartanegara, East Kalimantan. The focus of this research encompasses accurate construction cost estimation, identification of key cost components, provision of a solid basis for project budget planning, and assurance of the project’s economic feasibility. Data collection involved field surveys, technical documentation, and compilation of material price lists and labor costs. Detailed cost calculations were conducted using the standard analysis guidelines provided by the Ministry of Public Works and Housing, ensuring compliance with national best practices in cost estimation. The results indicate that concrete masonry work represents the largest portion of the total project budget, followed by stone masonry work and earthworks. Budget optimization was achieved through identification of dominant cost drivers and the application of value engineering principles to streamline resource utilization. The analysis emphasizes the importance of precise cost planning to enhance project efficiency and highlights potential risk control measures to minimize material waste and time delays. Moreover, the study addresses the implications of geographical and technical challenges specific to the region, proposing adaptive strategies for successful project implementation. The findings provide a valuable reference for similar irrigation infrastructure projects facing complex environmental conditions. Future research is recommended to incorporate digital technologies such as Building Information Modeling (BIM), which enables real-time cost simulation and facilitates integrated project management. The integration of BIM is expected to significantly enhance decision-making processes and operational efficiency in similar infrastructure projects.
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