The Qasmieh Ras -El- Ain (QRA) is an open channel irrigation scheme working on demand. It has been executed and operated since 1942. Nowadays QRA operates under the control of the Litani River Authority. In the post-war period, the scheme was rehabilitated and achieved in 1999. This paper aims at analyzing some performance indicators in the scheme, dealing with both technical and management sides. The technical indicators include water delivery performance, whereas management indicators include financial and sustainability performances. The primary results of this study show a positive response of the technical indicators, while the response of the management indicators were not satisfactory, because of an overstaffing and a non satisfaction in the water tariff system. With the rehabilitation plan, the system was able to deliver water upon farmer's request. Actually, the rehabilitation plan had improved the water delivery performance through the addition of a new regulation system.