68,000 m2 surface area
25 years involved
The speed of the construction work is exceptional about this project. The building was erected in just eighteen months. Such a time frame was feasible, as we worked, wherever possible, with modular and prefab elements, which were designed in 3D using BIM. The cells are complete units with precast fittings that were delivered to the construction site as shells. Every week 24 cells were installed and all 667 cells were in place within the space of six months.
Design, Build, Finance, Maintain, Operate
For this project, we concluded a DBFMO contract. The client set out its requirements in an output specifications document and, by means of systems engineering, we created a building that demonstrably meets them. We are responsible for the design, construction, financing, maintenance and facility services for the prison complex for a 25 year period. As a result, the project will be written down over 25 years, instead of three or four years. Decisions about the design, construction and operation of the building were guided by aspects other than construction costs alone. After all, if you invest a little more at the beginning of a project in sustainable products that have a long lifespan and require little maintenance, this will reduce costs further down the line and compensate for this higher investment.
As the key principles behind the design were carefully considered, they not only determined the architecture but will also support the various functions of the prison complex. The whole complex is extremely light and airy, which contributes to the humanity of the building. In addition, the interior and furnishings are robust and easy to maintain. All the aspects involved in this kind of project can only be coordinated effectively if there is a close working relationship between all the parties involved.
Walter began his career in the railway sector, where he worked on various formula developments such as the implementation of the well-known OV chip card. Since 2008, he has been working on integral projects within Ballast Nedam. A part of the building sector in which he uses his knowledge about tender and contract management daily.