Running and maintenance of DTW Schemes under Karbook R.D Block, Gomati District, Tripura/SH-Repairing and maintenance of existing pipeline by remodelling, shifting at different DTW scheme fall under road construction work of PWD(R and B) of chainage

Charges for dismantling PVC/HDPE pipe after necessary excavation of earth in/c. washing and stacking of pipes properly at sides with all leads and lifts and backfilling of soil as required after laying of pipeline,in layers not exceeding 200 mm in depth in/c consolidating each deposited layer by framming, watering etc complete as per specification and direction of the Engineer-in-charge.i)90 mm dia

ii)110 mm dia.

iii) 140 mm dia.

Providing, fixing and laying rigid UPVC pipes conforming to IS: 4985 jointing with couplers of same class conforming to IS: 10124(Pt-II) with solvent cement conforming to IS: 14182 including testing of joints complete (but excluding the cost of specials like bend, tees etc. which will be paid separately ) as per CPWD specification and direction of the Engineer - in - charge. A. Class-3(working pressure 6.0kg/cm2 iii) 90 mm OD

iv) 110 mm OD

v) 140 mm OD

Excavation trenches of required width for pipes for pipes, cables etc. inluding excavation for sockets, dressing of sides where required, ramming of bottoms, depth upto 1500mm including getting out the excavated soil and backfilling of soil as requred after laying of pipe line, in layers not exceeding 200mm in depth in/c consolidation each deposited layer by ramming. water et. and disposing of surplus excavated soil with all required leads as per chapter 2 of CPWD specification and direction of the Engineer-In -Charge. A) For UPVCD work in new work. a) all kind of soil. i) For pipes not exceeding 90mm dia.

ii) For pipes exceeding 90mm dia but not exceeding 300 mm.

Charges for fixing and laying rigid UPVC pipes jointing with couplers, solvent cement including testing of joints complete(excluding the cost of pipes, couplers, solvent cement which are to be issued from the department free of cost and specials like bends, tees etc which will be paid separately) as per CPWD specification and direction of the Engineer-in-charge. i)90 mm OD

ii)110 mm OD