The Government of Andhra Pradesh on Thursday accorded administrative approval for a sum of ₹990 crore for the construction of a new diaphragm wall through the entire length of the Earth-cum-Rock Fill (ECRF) dam (Gap-II) of the Polavaram project.
A G.O. to that effect was issued by Special Chief Secretary (Water Resources) G. Sai Prasad.
It was stated that with the construction of the new diaphragm wall, the quantity of work would increase to 63,656 square metres, and the estimated amount for the new diaphragm wall was pegged at ₹990 crore as per the existing contract agreement rates.
The original quantity was 29,585 square metres, and the new diaphragm wall would be constructed in two parts — Part A costing ₹675.98 crore and Part B ₹314.02 crore.
The approval is subject to five conditions, which include, among others, that price adjustment must be as per original tender conditions and not exceed the notional savings indicated by the department; relevance and correctness of the data has to be checked before giving the technical sanction and it should be in conformity with the standard data, all necessary designs and drawings should be approved by the Competent Authority before technical sanction is given in order to avoid deviations during the execution.
