M/o various schemes under NA-II (East Zone).

Regular cleaning and taking out of debris/silt rubbish etc. from pipe drain as well as box drain which are heavily surcharged, by deploying super sucker machine (consisting of one No. chasis mounted Suction machine having suction capacity of min 4000 cum/ hrs. at 80% vacuum and minumum two no. chasis mounted dump tank having capacity of 10 cum) working for minimum 8hrs or as per the direction of Engineer-in-charge. The operations of desilting shall be videographed for 15 minutes per day and minimum of 20 photographs shall be taken daily,five each at the start and end operations, showing the original and cleaned state of drain.10 Photographs during desilting process.All the photographs and videos shall be submitted in digital formatas per the direction of Engineer-in-Charge. Log book shall be maintained for each machine to record working hours and shall be acknowleged by concerned DDA officals and contractor daily. The rate is inclusive of complete set of machine and all the required T&P, fuel/oil, gas detector, forced air ventilators wherever required, manpower, diesel generator, barricading, safety measures/equipment's as per guide-lines laid in IS: 11972-1987, warning lights, insurance of workers, traffic control arrangement and proper lighting if work is to be carried-out during night, display of signboard, insurance of workers and cleaning of site along-with safe disposal of silt/debris within municipal limits at suitable place as per DPCC/NGT guidelines etc for all leads and lifts .

Excavation of silt/manure/sludge by manual or mechanical means in drains width upto 0.6m and all depth in or under foul conditions including pumping out water as per required and including scrubbing of sides and bottoms, complete, cleaning etc lift upto 1.5m including getting out the silt manure/sludge and disposal of silt/manure/sludge within a lead of 50m and as per direction of Engineer-in-Charge

Disposal of silt/ manure sludge similar unserviceable dismantled or waste material by mechanical means including loading, transportation, unloading in the low lying area under the jurisdiction of DDA beyond 50 m for all lead and all lift involved and as per direction of Engineer-in-Charge.

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