m/o completed scheme under flyover Nazul A/c II.SH- Desilting of Drain/Nallah (covered box drain) starting from culvert near police station Lajpat Nagar up to Barapullah Nallah.

Desilting and taking out debris/silt,rubbish etc. from covered drain by deploying two super sucker machine sets (each set consisting of one No. of chasis mounted Suction machine having suction capacity of minimum 4000 Litre/hr. at 80 % vacuum and two chasis mounted dump tanks with capacity of 10000 Litre), working for two shifts(16 hours) each day. The operations of desilting shall be video-graphed for 10 minutes per day and a minimum of 10 photo-graphs shall be taken daily, five each at the start and end of operations, showing the original and cleaned state of drain. All the photo-graphs and videos in digital form shall be submitted (CD’s) as per direction of Engineer-in-charge. The rate is inclusive of working of each set of machines for 16 hours per day, all the required T&P, fuel/oil, gas detector, forced air ventilators wherever required, manpower, diesel generator,barricading, safety measures, warning lights, insurance of workers, disposal of silt/debris for all leads and lifts at a suitable place as per DPCC/NGT guidelines etc. The output of each machine per shift of 8 hours shall not be less than 31 Cubic metres (Density not less than 1.6 t/m3). Nothing extra is payable for achieving more output, but deduction for less output shall be made on pro-rate basis including Disposal of moorum/building rubbish/ malba/ similar unserviceable, dismantled or waste material by mechanical transport including loading, transporting, unloading to approved municipal dumping ground or approved dumping ground for lead upto 30 km for all lifts, complete as per directions of Engineer- in-charge. a) The rate is per day for two sets of machines working 16 hours/day. b) Log-book shall be maintained for each machine to record working hours and shall be acknowledged by DDA staff and contractor daily