WBMAD/ULB/RSM/WS/29/26-27

Excavation of trial pit (3.0 m x 1.0 m x (upto) 3.0 m) for fixing of pumping main, washout line raking every detection against damage of S.W. pipe line electrical cable etc. as und obstruction including 37.5 mm timber shuttering, earth cutting, dewatering, barricading and back filling etc. as per directionj of E-I-C.

Shifting house connection or stand post connection from existing main to new main after excavation through any kind of soil and road materials up to required depth, dismantling existing ferrule with all fitting, plugging hole of old main with G.I. plug, drilling and tapping the new main, refixing the ferrule on the new main with serviceable old G.I. pipes and other specials (New G.I. pipes and other specials, if required to be supplied, shall be paid extra and back filling the trench with excavated materials all complete as per specification and direction of the E.I.C.

Supplying HDPE (Materials grade PE-100) pipes conforming to IS 4984- 1995 with latest revision & amendments if any with necessary HDPE specials (excluding cost of CIDF valves) including labour charges for earth work in excavation in any kind of soil including mixed soil with boulder,road sub-grade and aits flank but excluding moorum laterite or sand stone / hard rock cutting with chisel required including cutting road flank/ brick pavement etc. without damaging the exisiting telephone / electrical cable line etc.(in case of damage of any type of cable line by the agency at the time of execution necessary damage charge as applicable by the respective authority will have to be brone by the agency at his own cost)upto the depth (av.) so as to maintain 1.10m.earth cushion from top of the pipe upto G.L. including loading unloading carrying lowering laying fitting fixing carefully pipes, valves and specials with the all types of jointing materials in trenches maintaining proper levels and alignment jointing the pipes and specials by butt welding/ adopting suitable method (But weld jointing with help of hydraulic tack and trimming machines, Hitter etc. for reaching at necessary melting point of HDPE pipe so that joint can be monolithic) so as to facilitate the maintenance of pipe line locally as per conventional method in future. (iii) Laying of pipe line including cost of pipe, fittings/specials & valves. 110 mm

125 mm

Box cutting or filling in Road Embankment in all sorts of soil including spreading the spoils properly over the flank as necessary or on berm to approximate grade & camber and rolling the sub-grade with Power Roller to proper camber and grade as per direction and satisfaction of Engineer-in-Charge including uprooting and removing plants and jungles when and where necessary. i) Depth upto 150 mm

ii) For each additional depth of 150mm and part thereof

Filling in foundation or plinth by silver sand in layers not exceeding 150 mm as directed andm consolidating the same by thorough saturation with water, ramming complete including the cost of supply of sand. (payment to be made on measurement of finished quantity)

Single brick flat soling of picked jhama bricks including ramming and dressing bed to proper level and filling joints with powdered earth or local sand.

Construction of Sub Base using Local Materials, spreading in uniform layers with Motor grader on prepared surface, including screening the metal as necessary, mixing by mix in place method with Rotavator at OMC, and compacting with vibratory roller to achieve the desired density, lighting, guarding and barricading including cost and carriage of all materials and making necessary earthen bundh of one metre wide on each side to protect the edges complete as per Clause 401 of Specifications for Road & Bridge Works of MoRT&H(5th Revision). (i) For Construction of Sub Base by compacting 1stclass brick aggregates (40 mm down) and sand (in proportion of 60:40). 1st class brick aggregates (40 mm down) ,min. Compacted thickness 150 mm.

Earth work in filling in foundation trenches or plinth with good earth, in layers not exceeding 150 mm. including watering and ramming etc. layer by layer complete. (Payment to be made on the basis of measurement of finished quantity of work) (a) With earth obtained from excavation of foundation.