This thesis consists of a theoretical and a practical part. The topic of this paper is a model and simulation of the construction of a pedestrian bridge with given technical documentation, which is a practical part, and the theoretical part refers to the explanation of BIM and BrIM models and processes. In the first chapter, i.e. introduction, the topics in this paper are briefly explained. The second chapter presents BIM (Building Information Modeling) and describes its development, processes, as well as the concept of approach and desired achievements. The concept of the approach is explained in the form of dimensions that represent the current achievements of BIM in terms of the amount and type of information that is added to the created 3D model. Furthermore, the advantages and disadvantages of using the BIM procedure are described, as well as the risks that occur during use. The third refers to BrIM (Bridge Information Modeling), its meaning, the way information is exchanged and the formats used to exchange it. The procedures required to make engineering decisions regarding the cost of building and maintaining a bridge are explained. Also presented are the processes required to represent bridge components in PCD (Point Cloud Data) format and the subsequent use of such PCD bridges. The fourth chapter presents a case study of a 3D model of a pedestrian bridge and a construction simulation with all the accompanying processes that needed to be made in order to reach a final solution, ie a construction simulation. The fifth chapter deals with the discussion of making 3D models and simulations and the obstacles that arose during their creation. At the very end, i.e. the sixth chapter, conclusions were made after the practical and theoretical part of this thesis.