Parametric Road and Bridge design - new Technology for combined automated Bridge Generation Life cycle of road bridges starting from design to construction and finally to asset management is a crucial aspect of digitization of infrastructure planning and maintenance. Germany is a pathfinder for a completely new approach, the generic parametric generation of digital description of digital twins of roads and bridges. In this study, we present a novel method that integrates two state-of-the-art platforms, KorFin for Infrastructure Modelling and Allplan Bridge for Building and Bridge Modelling. By leveraging this integration, we establish a connection between modeling in any life cycle stage in KorFin and the parametric modelling capabilities of Allplan Bridge. This integration is an important outcome of the biggest German AI research projects involving German federal road authorities. This generation had been developed and is being already used in practice. Our research addresses the need for cost-effective infrastructure planning and enhanced construction and maintenance practices. By utilizing the integrated capabilities of KorFin and Allplan Bridge, stakeholders can optimize their decision- making processes, using accurate infrastructure models, and prepare them for infrastructure and especially structure health monitoring. This approach is expected to become a best practice in the infrastructure life cycle management.