As per recommendations of MoP, it has been observed that for implementation of Civil Works of Hydro Projects, inherent uncertainty is involved in respect of topography, geology, hydro- geology etc. Due to this, detailed design & construction methodology finalised during execution may widely vary as compared to the bidding stage design & methodology conceived in the bid leading to claims & disputes.
EPC model does not provide adequate contractual window to the Owner to intervene in the event of non-performance of the contractor.
As there are considerable number of geological surprises and uncertainties associated with the construction of Song dam, scope of work is likely to vary and thus limiting the suitability of EPC mode of contract.
In view of the various issues discussed above and in consonance with Jamrani, the item rate contract seems to be more suitable for the civil works of the Song Dam.