In Sweden, there are many assets for drinking water such as water towers, water treatment plants and pipes. Many of these structures are made of reinforced concrete and were built between 1950 – 1970. The normal design life of these structures is 50 years meaning that they are reaching their intended design lifespan. In addition, these structures face harsh environments that can lead to degradation. All these leads to the need of repair and renovation of these specifics assets. For that purpose, methodologies and tools for performing inspections, assessing the condition and the time to intervention are needed. Nowadays, in general the procedures for condition assessment are based on the judgement and expertise of engineers performing the inspection. In this project a compilation of best practices for performing the condition assessment for drinking water structures has been performed. This assessment should include an ocular inspection of the object, documentation, tests to ensure certain parameters and an overall analysis of the assessment of the object and finally provide a proposal for measures. The measures must be designed so that both the method and the time aspect are specified. In addition, in this project a methodology and a simplified tool has been developed to accommodate the condition assessment of reinforced concrete drinking water infrastructures and the time to intervention after the assessment. The tool also includes the uncertainty analysis of the condition assessment performed.