Specifications Part 1 - Water Supply, Sewerage and Tube Well Works

15.17.6.9 Removing all shoring and bracing which is not ordered to be left in place or notrequired by the project plans or specification to remain in place,15.17.6.10 Hauling away and disposing of excavated materials not necessary or elseunsuitable for back filling purposes. The extra excavated soil will have to beproperly dressed in soil banks along with the trench as directed,15.17.6.11 Back filling the trenches as directed or as per specifications.15.17.6.12 Restoring all property damaged or disturbed by these construction activities tothe condition as near its original conditions as possible.15.17.6.13 Restoring the surface and repairing off all roads, streets, alleys, walks, drives,working spaces, and right of way to a conditions as good as prior to excavation.15.17.7 Change of Trench Location15.17.7.1 In case the Engineer orders that the location of trench be moved a reasonabledistance, on account of the presence of an obstruction or due to such othercause or if a changed loccontractor shall not be entitled to extra compensation or to a claim for damage.15.17.7.2 If however such change is made at the orders of the Engineer, which involvesabandonment of excavation together with the necessary back fill, will bemeasured, classified and paid for in the same manner as for other trenchexcavation and back fill of the same character.15.17.7.3request, after its approval, the abandoned excavation and back fill shall be at15.17.8 Minimum earth cover15.17.8.1 If a profile is not furnished for a pipeline, the main will be constructed with aminimum earth cover of 1000 mm from the top of the pipeline, unless otherwiseindicated on plans and ordered by the Engineer.15.17.9 Dewatering15.17.9.1 During the excavation, if subsoil water is met with, contractor shall providenecessary equipment and labourers for dewatering the trenches / pits bybailing out water or water mixed with clay. If pumping out subsoil water is foundto be necessary, contractor shall provide sufficient number of pumps for thesame.15.17.9.2 In both the above cases the excavation shall be done to the required level andthe pipes shall be laid to proper alignment and gradient. Contractor shall alsomake necessary arrangement for the disposal of drained water to nearby stormwater drain or in a pit if allowed by Engineer.15.17.9.3 In no case the water shall be allowed to spread over the adjoining area. Beforedischarging this water into public sewer / drain, contractor shall take necessarypermission from the local authorities.15.17.9.4 The contractor shall be responsible for the adequate pumping, drainage andbailing out of water from the excavation. Failure to make such provision whichUrban Administration & Development Department Page 189