The reuse of tunnel excavation material represents an outstanding possibility to lower the environmental and economical impact of tunneling projects. The contemplation of the material as a valuable asset, used as raw material in different industrial fields, is just one of the many advantages. With a minimization of landfill areas and, therefore, optimization of the used capital, it could become mandatory for both economical and environmental considerations. As future projects all over the world promise a huge accumulation and handling of raw material, the overall benefits of reusing the material are remarkable. To use this potential and find a possible application for excavated material a proper classification has to be evaluated. The first part of this thesis describes the basics of the classification, the material requirements for different reuse scenarios. With this information the concept of the classification system, which uses the requirements and reorders the input information is stated. The system is divided in three different parts: a classification interface, a sale interface - a sales platform for the classified material - and an administration interface. The main focus of this work is the classification interface, which is then implemented as a web-based software. Basics of software engineering are discussed to understand the essential structure of the classification system. A detailed explanation of the server-user interaction, the decision for the system structure (programming language, database and programming structure) is made. On this basis the programming of the web-based platform, which uses the script language PHP and a MySQL database for data management, is explained in more detail. Source code extracts are commented to understand the programmed routines. In the final part the system is used for a classification of different tunnel excavation material to show the functionality of the development.