Tapping Additional source LWSS to Digerh Group of village in GP Muhan damaged During 2023-24 (under PDNA) in Anni Block Distt. Kullu HP.

Excavation in foundation and trenches (For pipes and pits) up to all depths and in all classification of each work such as pick work, jumper work, saturated soil including bailing or pumping out of water, blasting soft or hard rock or chiselling or wedging out of soft/ hard rock, where blasting is prohibited, in all lifts including trimming and dressing of sides, levelling of beds to correct grade including shoring, strutting, planking, timbering and dewatering where ever required. Stacking usable and unusable material/ soil separately and after laying, jointing and testing of pipes, returning the usable soil in 15cm layers by ramming and watering and then disposing of all surplus excavated soil/ unusable material as directed within all leads/ lifts including restoration of unmetalled surfaces to its original condition and including cost of diversion for traffic, night signal boards, fixing caution boards, crossing over trenches for access to houses, fencing etc. complete in all respect with in all leads and lifts as per direction of Engineer-in-Charge. Pick & Jumper work.

Providing laying, jointing (by way of circumfrential butt welded joints by electrical arc welding) and testing of MSERW pipe of following dia meters confirming to BIS 3183-2007 confirming to L-290 pipe of following diameter (latest with up to date amendments) steel grade A & wall thickness as specified below with bevelled ends and capable of withstanding required test pressure in a random length of 4 to 7 meters, including manufacturing reducers/ tapers, all short pieces, beds etc. as per site requirement made from parent tubes. The laying of pipe will include all operation such as cutting. welding, jointing, fabrication of bends, tees etc. including lowering and laying in excavated trenches to ensure required level including flushing, cleaning and hydraulic testing complete in all respects to the satisfaction of the Engineer in charge. The fabricated bends shall have three or four cuts having its radius not less than five times the dia of pipe. The pipes shall be factory galvanized (zinc coating both inside and outside) as per relevant IS standards and the damaged portion of the pipes and specials made form the parent tube shall be provided anticorrosive treatment by applying two coats of anticorrosive bituminous paint over a priming coat as per AWWA specifications C-203-1978. The welding electrodes shall be as per IS 814 of Advani Oerlikon/ L&T or ISI marked make. The rates also includes entire carriage of material, flushing, cleaning & hydraulic testing complete to the best satisfaction & direction of Engineer in charge with in all leads and lifts. (Earth work in trenches will be measured and paid for separately).

RD From To Length in mtrs Pipe (MM) wall Thickness Class 280 to 340, 540 to 864 = 384 80 4.80 (L-290 ) 100% Length of Butt Welding = 340 rmt.

Spot welding of G.I.Pipe of following dia pipe of the exisiting scheme including cutting. welding, alignining etc complete in all respect including testing. The welding electrodes shall be as per IS 814 of Advani Oerlikon/ L&T or ISI marked make. The rates also includes entire carriage of material, flushing, cleaning & hydraulic testing complete to the best satisfaction & direction of Engineer in charge with in all leads and lifts.

80 mm dia

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