Clearing of jungle at spillway and embankment portion and repair to toe darin, surface drain and V notech of hagaribommanahalli dam

NAME OF WORK:- Clearing of jungle at spillway and embankment portion and repair to toe darin, surface drain and V notech of hagaribommanahalli dam

It. No Item of work UNIT QTY RATE AMOUNT

1 Clearing and grubbing road land including uprooting rank vegetation, grass, bushes, shrubs, saplings and trees girth up to 300 mm, removal of stumps of trees cut earlier and disposal of unserviceable materials and stacking of serviceable material to be used or auctioned, including removal and disposal of top organic soil not exceeding 150 mm in thickness.(i) By Mechanical Means using Dozer (A)In area of light jungle. 100SQM 150.00 412.65 61897.50 61897.5 0.00

2 Demolishing cement concrete manually/ by mechanical means including disposal of material to the appropriate disposal area as per direction of Engineer-in-charge. CUM 9.00 1746.15 15715.35

3 Earth work excavation for Foundation by mechanical means for all works & depth upto 3 m, as per drawing and technical specifications, including setting out, shoring, strutting, barricading, caution lights, including dressing of excavated surfaces, disposing off or levelling the excavated earth or sorting & stacking the selected earth for reuse in a radius of 50 m and lift upto 1.5 m including cost of labour, tools, usage of machinery & other appurtenaces required to complete the work In all kinds of soils Depth upto 3 m CUM 1568.64 107.10 168001.34

4 Providing casing embankment using semi-pervious / pervious approved soil from borrow areas in layers of 250 to 300 mm ( before compaction ) including cost of all materials, machinery, labour, all other operations such as collection of soil, spreading soil in layer of specified thickness, sorting out, breaking clods, levelling, sectioning edges / sides, watering, compacting each layer to density control of not less than 95 percent or as stipulated using power roller and all other ancillary operations complete. CUM 250.00 660.45 165112.50

5 Providing and constructing graded filter media below and behind rock toe consisting of 200 mm thick sand, 250 mm thick 20 to 4.75 mm and 400 mm thick 80 to 20 mm clean, hard, graded coarse aggregates from approved source satisfying specified filter criteria including cost of all materials, machinery, labour, laying to required thickness and slope, compacting and all other ancillary operations complete as per specifications and approved drawings. CUM 1200.00 1942.50 2331000.00

6 Providing and laying insitu vibrated M-15grade cement concrete using 40 mm down approved, clean, hard, graded aggregates with placing and sinking plums of size 150 to 80 mm upto 15 percent for piers/ gravity type retaining walls / abutments / other similar structures including cost of all materials, machinery, labour, cleaning, batching, mixing, placing in position, levelling, vibrating, finishing, curing with all other ancillary operations complete. CUM 7.20 6575.10 47340.72

7 Providing and laying insitu vibrated cement concrete M-25 using approved, clean, hard graded aggregates including cost of all materials, machinery, labour, cleaning, batching, mixing, placing in position, levelling, vibrating, finishing, curing etc., complete with all leads and lifts. (For Dam and Allied works) A) Using 40mm and down coarse aggregates and 28 days cube compressive strength, Cement content=380 kg/m3. ii) Gravity type retaining walls, by-pass weirs, Cantilever/counterfort retaining walls, skin walls and similar works. CUM 9.00 6575.10 59175.90

8 Supplying, fitting and placing TMT FE 550 / 550D Steel Reinforcement including cost of all materials, machinery, labour, cleaning, straightening, cutting, bending, hooking, laping/welding joints, tying with binding wire / soft annealed steel wire and other ancilary operations complete as per drawing and technical specification e)Dam & Allied Works TONNE 0.78 85222.10 66714.70

9 Providing impervious filling adjacent to masonry / concrete structure and filling trial pits with soil available in adjacent area in layers of 100 to 150 mm and compacting each layer to density control of not less than 95 percent using pneumatic tampers or by vibratory earth rammers including cost of all materials, machinery, labour, picking previous layer, spreading soil in layer, breaking clods, watering & all necessary works as directed and complete as per specification. CUM 24.00 269.85 6476.40

10 Providing casing embankment for breached / damaged portion of canal using approved pervious /semi-pervious soil from borrow areas in layers of 100 to 150 mm ( before compaction ) including cost of all materials, machinery, labour, all operations such as collection of soil, spreading soil in layer of specified thickness, sorting out, breaking clods, sectioning sides / edges, watering, compacting each layer to density 2 control of not less than 95 percent or as stipulated using power roller or pneumatic / vibrating plate compactors etc., complete with all lea and lifts. CUM 283.00 691.95 195821.85

11 Re-constructing 600 mm thick hand packed rough stone revetment with through stones at 1.50 m c/c over a backing of 450 mm thick graded filter media consisting of sand, 10 mm and 40 mm down graded aggregates satisfying specified filter criteria laid in layers of 150 mm thick each using sand from approved quarry and stones and filter aggregates obtained from revetment removed for re-construction including cost of sand, labour, laying filter and stones to specified slopes, wedging with stone chips, finishing surface with all other ancillary operations complete. SQM 220.00 585.90 128898.00

12 Earthwork excavation for trial pits/ borrow pits/ dog bailing to the required section including disposing off the excavated material etc., complete with all leads and lifts. (For Dam and Allied works) In hard murum and soft laterite CUM 40.00 598.50 23940.00

13 Providing and laying insitu vibrated M-15 grade cement concrete using 80 mm down approved, clean, hard, graded aggregates for foundation filling including cost of all materials, machinery, labour, cleaning, batching, mixing, placing in position, levelling CUM 2.16 5989.20 12936.67

14 Providing and laying insitu vibrated M-20 ( 28 days cube compressive strength not less than 20 N / sq mm ) grade cement concrete using 20 mm down size approved, clean, hard, graded aggregates as per relevant IS Codes machine mixed with super plasticisers, CUM 11.52 7302.75 84127.68

15 Providing and fixing Steel work in built up tubular (round, square or rectangular hollow tubes etc.) trusses etc., including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer, including welding and bolted with spec KG 1800.00 142.80 257040.00

16 Providing and fixing G.I. chain link fabric fencing of required width in mesh size 50x50 mm including strengthening with 2 mm dia wire or nuts, bolts and washers as required complete as per the direction of Engineer-in-charge. (Made of G.I. wire of dia. 4 mm, PVC coated to achieve outer dia not less than 5 mm in required colour and shade) M 250.00 750.75 187687.50

Grand Total Rs. 4498025.62

I agree to carry out the above cited work at _______ % in words__________________________________ above/below the estimated Rate indicated in the Schedule-B. 38118.86117

Contracotr No of Correction Executive Engineer

No of over writings KNNL, No-1 T. R. Division