example, the report Mr. Jacques Combault is based on: “The analysis reported in the following pages is based on: - The description of Bridge Concept as proposed by Systra - The Main characteristics of the Structural Concept as proposed by Systra - The State of the Art in the field of prestressed concrete cable stayed bridges - Examples of similar bridges successfully achieved in the past” 23After a theoretical analysis, the following conclusion is drawn: “The structural concept of the Chambal Bridge as proposed by Systra is: - - perfectly fitting the site-conditions - conforming to the state of the art in the field of cable stayed bridges The construction methods, as proposed by Systra, are simple and proven processes well adapted to the structural concept.” 27. A similar approach was adopted by the other experts. On the other hand, the surveyor has examined himself and adduced documents. Further, there is sufficient evidence to indicate that the surveyor has made site-visits and the