The Yarqon River Authority (YRA) operates on a watershed basis in many issues and the guiding philosophy is to encourage the participation of stakeholders. The YRA's main activities involve initiating planning processes and involvement in regional and infrastructure plans and their implementation regarding projects that may influence the river and its tributaries. These activities are in the following main categories: A. Drainage and flood control, including flow modelling and flood plain management within urban settings; B. Environmental and ecological aspects related to the rehabilitation of the Yarqon, including water allocation - quality and quantity, biological issues, water reuse projects and pollution prevention; C. Recreational issues; D. Routine maintenance of the riverbed and its corridor. The Master Plan concept and its implementation can serve as a model for the rehabilitation of streams and rivers. It requires an interdisciplinary team working with stakeholders in a catchment basin framework.