This paper presents a new method based on the algebraic Riccati equation for designing robust reliable Hinfin control laws for plants with structured uncertainty. The design method consists of incorporating information on the plant uncertainty into the algebraic Riccati equations(ARE) used for nominal Hinfin disturbance-rejection designs. The development of the reliable Hinfin controllers assumes that the sensor failures can be detected and the observer dynamics accordingly adjusted. For all admissible structure uncertainties, the designs provide a robust reliable controller, provided one exists, and the resulting control systems retain stability and disturbance rejection with robust Hinfin-norm bounds despite any outages within a prespecified subset of sensors.