371. Amount of damages where costs are unquantifiable.

The complexity of construction work sometimes makes it difficult to establish clearly how an undoubted actual loss was caused. A claim must nevertheless be set out with sufficient particularity and specify a discernible nexus between the wrong and its consequences1. Provided that such a nexus has been established, then where the full extra costs depend on a complex interaction between the consequences of various events so that it is difficult to make an accurate apportionment of the total extra costs, an individual award may be made for such primary costs as can be proved to flow from the relevant