Analisis Perencanaan Pemeliharaan Saluran Irigasi Primer D.I Cawak di Kabupaten Bojonegoro

Abstract

The primary irrigation channel of the Cawak River in Sidomukti Village, Kepohbaru District, Bojonegoro Regency, plays a vital role in distributing water to 1,733 hectares of agricultural land. However, this channel has experienced various damages such as structural landslides, cracks in the stone masonry, thick sedimentation, and wild vegetation growth, which disrupt its function. This report aims to analyze the maintenance planning of the 150-meter-long primary channel, including problem identification, calculation of work volumes, and a budget plan (RAB). The methods used include field surveys using a waterpass tool, elevation measurements, and data analysis to determine the volume of earth excavation, stone masonry demolition, and broadcasting and plastering work. The analysis results show that the volume of earth excavation reached 327.2 m³, the demolition of existing stone masonry 138.434 m³, and the reuse of used demolition materials amounted to 69.217 m³. In addition, plastering of 58.344 m² and broadcasting of 342.108 m² were required. This maintenance project used river stone due to its abundant availability, affordability, and resistance to abrasion. Recommendations for similar future projects include the use of digital survey technology, alternative materials such as reinforced concrete, and community involvement in ongoing maintenance. Thus, this canal improvement is expected to optimize water distribution and support agricultural productivity in the region