M/o various schemes under NA-II (East Zone).SH-De-silting of covered as well as open deep SW drains alongwith Culverts along NH-24 and in Pkt.-A, IFC Gazipur.

De-silting and taking out of debris/silt rubbish etc. from covered as well as open deep drains, sumps 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 along with requisite numbers electric pumpset having capacity 5-20HP running as per requirement at the Site alongwith genset of capcity 100/125KVA for Pumping-out/dewatering process. The opertions of desilting shall be videographed for 15minutes per day and a 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 in digital form shall be submitted (CD's) as per direction of Engineer-in-charge. Log book shall be maintained for each machine to record working hours and shall be acknowledged by DDA staff 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 . NOTE:- The operation of pumping out/dewatering shall be paid separately.

De-silting of open drains using Poclain including mobilization and demobilization of machinery, lifting and removing silt, sludge, garbage, polythene waste, vegetative growth, and other foreign materials from the bed and side slopes of the drain.The work includes engaging skilled operator, fuel, daily maintenance, and handling of desilted material, including loading into tippers/trucks for disposal. The desilted material shall be disposed of at designated locations approved by the department, and the site shall be left in a clean and functional condition. All works to be executed as per direction of Engineer-in-Charge, including safety precautions, traffic management (if within ROW), and environmental compliance.

Transportation of Poclain machine at site, including loading, unloading, carriage from one location to another and placing in position, complete as per the direction of Engineer-in-Charge

De-silting of S.W. Drain (all size) by mechanical means (Hydraulic Excavator)/manual means and disposal of same by mechanical transport at dumping ground i/c loading, unloading, all leads and lifts complete as per the direction of Engineer-In-Charge.

Less GST correction factor on DSR-2023 i.e. (1-0.973 = 0.027)

Add 3% Cost Index(+)=