Evaluating irrigation system performance: A case study in East Java, Indonesia

Specialists and donor groups alike claim that most public irrigation systems in Asia operate well below their potential; yet there is a very little quantitative information on the extent to which these systems are achieving performance objectives. This study develops a methodology to evaluate both operations and distribution rule performance, addressing the problem of efficient and equitable allocation of limited irrigation water across units of large public irrigation systems in Indonesia. The site chosen for the study was the Warujayeng Irrigation Project (WIP) scheme in East Java.