Design for inspection of concrete bridges

In order to achieve durable concrete bridges, adequate measures need to be considered already in the design phase. An evaluation of common deteriorations in concrete structures leads to the conclusion that visual inspection is and will remain the method to be applied first. More refined and complementing methods will result in similar requirements for design. Therefore, the role of inspections in bridge management has to be identified and future methods of inspection and condition survey have to be anticipated. The main focus is a safe and convenient access to all concrete surfaces, hollow boxes, and decisive structural parts like bearings and expansion joints. Some of those measures are even worth to be considered for existing bridges when these are significantly modified due to bad conditions or new requirements.