Building Information Modelling (BIM) has significantly improved the efficiency of construction projects. Using BIM tools provides various opportunities for cost management professionals to improve their cost management services' quality, speed, accuracy, value, and sophistication. Despite these benefits, BIM implementation for infrastructure projects can be quite challenging as these projects are highly complex. Very few organisations (who deal with infrastructure) have implemented BIM higher than BIM 4D in their projects. Therefore, this study investigates the challenges organisations face while implementing BIM 5D for infrastructure projects and identifies ways to minimise these challenges and enhance the BIM 5D process. The research methodology for this research is based on a literature study and interviews conducted with experts from Arcadis. This thesis first explores the challenges faced by organisations while implementing BIM 5D for infrastructure projects. In addition, this thesis also looks into the steps the building sector took to enhance the BIM 5D implementation and how these steps can be fine-tuned to suit the infrastructure projects. Based on these two points, recommendations are created for organisations dealing with infrastructure projects to BIM 5D, depending on their role in the project. The results show that the project managers should be targeted first to promote the use of BIM 5D. The expertise of BIM front runners should be utilised in projects, and a standard BIM Execution Plan should be prepared and followed by involving both designers and cost managers. The BIM 5D processes also need to be tailored to suit the needs of specific (larger) clients.