construction of retaining wall at hill top tourism property.- earth work in excavation of foundation trenches or drains, in all sorts of soil (including mixed soil but excluding laterite or sandstone) including removing, spreading or stacking the spoils within a lead of 75 m. as directed. the item includes necessary trimming the sides of trenches, levelling, dressing and ramming the bottom, bailing out water as required complete.(a) depth of excavation not exceeding 1,500 mm. 2 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. 3 stone boulder 150 mm north bengal variety delivered and stacked at site. 4 labour for laying 150 mm to 200 mm boulder soling including rough dressing hand packing and ramming down small pieces in the interstics including rolling and preparing the bed to proper level and filling up all joints with sandy clay or earth 5 plum concrete work with 40 % cement concrete with 30 mm down graded stone metal and 60 % stone boulder of size 150 mm and above, placed in position as directed excluding shuttering if any.(i) (1:3:6) proportion 6 ground floor 7 1st floor 8 (i) cement concrete with graded stone ballast (40 mm size excluding shuttering)in ground floor(b) with n.b. variety stone metal.(a) 1:3:6 proportion 9 hire and labour charges for shuttering with centering and necessary staging upto 4 m using approved stout props and thick hard wood planks of approved thickness with required bracing for concrete slabs, beams and columns, lintels curved or straight including fitting, fixing and striking out after completion of works (upto roof of ground floor)(c) steel shuttering or 9 to 12 mm thick approved quality ply board shuttering in any concrete work 10 ground floor 11 1st floor 12 f) 25 mm to 30 mm shuttering without staging in foundation 13 supplying and laying polythene sheet (150gm / sq.m.) over damp proof course or below flooring or roof terracing or in foundation or in foundation trenches. 14 providing weep holes in brick masonry / plain / reinforced concrete abutment, wing wall / return wall with 100 mm dia ac pipe, extending through the full width of the structure with slope of 1v:20h towards drawing face. complete as per drawingand technical specifications. 15 supplying, fitting and fixing stainless steel railing consist of 38mm dia and 900mm height vertical balustrade at every two alternative steps, 50mm dia top rail, 3 (three) nos 19mm dia horizontal strainless steel pipe and base/cover plate with strainless steel grade 304 containing 7.5% nickle (interior grade) brushed/matfinish, complete as per direction of the engineer-in-charge.weight of strainless steel railing per metre 6.5 kg (approx) 16 total 17 gst @18% 18 cess @1%