TECHNICAL AND MANAGEMENT PERFORMANCE EVALUATION OF SMALL SCALE IRRIGATION: A CASE OF ZUMA IRRIGATION SCHEME IN AMHARA REGION, ETHIOPIA

Abstract

Zuma irrigation scheme was evaluated for the technical and management performances of the irrigation scheme. The reason, performance based technical and management evaluation is a principal approach to improve the scheme performance. The study was done during the irrigation season from October to December, 2016. The technical evaluation was made by taking some selected performance indicators such as conveyance efficiency, water delivery performance and maintenance indicators. Moreover, the management performance was done by questionnaires. Primary data collection included field observation, household survey, interview and discussion with beneficiaries were done. Discharge measurements were also done in the canals. The results indicated that the main canal conveyance efficiency was found to be 88.2 and 97.8%. The conveyance efficiency of secondary canals was 74.8 and 84% at the lower and middle secondary canal sections respectively. The actual water delivery performance of the main canal was 92%. This shows, the current canal structures are lower than the design of the canal capacity. Management performance provided to the beneficiaries was not the same as to the intended.