Section 25(iii) in General Specification and Conditions of Contract
(iii)Digging and benching base and putting the same earth on the outer slope including ramming, watering, dressing lead and lift. - After the jungle is cleared and the base of the dam levelled, block levels will be taken and a plan prepared. The contractor should see this plan and sign it to avoid disputes so that earth work quantities of bank may be correctly taken out. The surface to be occupied by the base of the bund will then be benched according to the drawing supplied or the written instructions of the Engineer-in-Charge of the work. The purpose of benching being to give a proper frictional grip to the fresh earth used in the construction of the bund. The work should be carried out under proper instructions. The soil taken out of benching will be used in the construction of the bund on its outer slopes, if so ordered by the Engineer-in-Charge.
