Summary

Modernization differs from rehabilitation, which simply returns a deteriorated project or structures to their original new state.  Rehabilitation by itself typically only perpetuates the vicious cycle of rehabilitation, deterioration, rehabilitation, etc.  A modern irrigation design is the result of a thought process that selects the configuration and the physical components in light of a well-defined and realistic operation plan that is based on the service concept.  A modern irrigation design is not defined by specific hardware components and control logic.  Advanced concepts of hydraulic engineering, irrigation engineering, agronomy, and social science should be used to arrive at the most simple and workable solution (Plusquellec et al., 1994).