Section 25(v) in General Specification and Conditions of Contract
(v)Earthwork of bund complete with lead, lift consolidation with a steam road roller with sufficient water and dressing. - (a) For the construction of embankment good hard earth should be used. Earthwork should be done in layers of not more than 6" in thickness and the slopes should be made according to the drawings or written orders of the Engineer-in-Charge. Profiles must be erected at suitable intervals, say at every 50ft. so that the bank may be property constructed according, to the designed sections. Before the excavation of the borrow pits is commenced the surface of the ground to be dug should be cleared of all vegetable roots, rubbish growth by the contractor at his own expense. The borrow pits should not be with in 100ft. from the inner toe of the bund and should be dug more than 1ft. in depth upto 1 chain in the next chain they can be dug 2ft. deep, care being taken that no porous state are uncovered on the tank side of the bund. Then the pits should be dug with the written instructions of the Officer-in-Charge of the work. All borrow pits should be arranged with certain amount of regularity having regard for the convenience of the work during executions and for the safety and appearance of the work, after its completion. Suitable size paths should be left between rows of pits for carriage of earth by donkeys and bullocks or by tramway line. In no case earth should be taken from the outside of the tank without written orders of the Engineer-in-Charge or his authorised representative. The earth to be used in the bank should be of soil mixed with fair proportion of clay Sand or saline oil or soil containing Bajri or small size kankar will not be allowed to be used for construction of the earthen dam. The contractor should see the site for selection of soil and tender rates to cover all lead and lift etc.
