In the present and future, the maintenance of the existing bridge stock is increasingly becoming a key infrastructural task for countries and municipalities. Over 90% of the bridges in Austria, Switzerland, and Germany are solid bridges. This book presents the significant development of modern maintenance options in solid bridge construction from a practical construction perspective, based on executed innovative construction projects. It aims to update general knowledge, clarify decision-making options for the involved specialists, promote sound preservation measures through appropriate questioning, and prevent hasty demolition decisions.