ABSTRACT
In the life-cycle of infrastructure assets, distinction can be made between technical, economical and functional performance. When the performance does not meet the requirements anymore, end-of-lifetime is reached. By considering functional aspects of hydraulic structures -like meeting the requirements on flood protection, navigation, water availability or ecology- an integral analysis for the life-cycle can be performed. The framework functional performance assesses the impact of climate and socio-economic changes and (future) policy decisions on the functional performance of hydraulic structures in time. This framework can be applied to systematically 1. Identify the current functional performance; 2. Identify end-of-life tipping points and 3. Assess renewal and renovation options. It was applied to one of the steps in the preparation process for the renewal of the weirs in the Dutch part of the river Meuse. Since functional lifespan is rarely quantified, our next step is the development of (rapid assessment) tools to quantify the functional performance in time for other structures, drivers and functions in order to fill the framework and make it applicable for policy analysis.
