Irrigation water supply is only one input in an agricultural production system. However, the introduction of improved technology in one component of an overall production system often has implications for the overall system planning and management. Therefore, the development of successful irrigated rice production systems will hinge upon the perception and optimal design of all interacting components of a project. This report consists of a methodology for irrigated rice production system planning and design, a summary report of production and incomes of farm households in the Barit River Irrigation System, procedures for economic analysis, and design data and system layout.