RESTORATION OF DAMAGED REVETMENT AND BANK SLOPE BETWEEN NIMATALA GHAT TO CHAMPATALA GHAT AS WELL AS OTHER ALLIED WORK AT VARIOUS LOCATIONS ALONG THE LEFT BANK OF THE RIVER HOOGHLY

Earthwork in excavation in the canals / drainage channels / borrow pits / River bed / slope of bank as noted below as per designed section & throwing the spoils in layers of 25 cm. for making banks as per profile or to deposit the same in any other place within an initial lead of 30 metre and initial lift of 1.5 metre including breaking clods, rough dressing etc. complete as per direction of the Engineer / Engineer's representative. In ordinary soil / local soil / soil mixed with moorum or kankar / silt, dry or moist / slushy silt / sticky soil.

Disposal/carriage of excavated earth / materials outside Government land by truck or by any other conveyance over kancha / pucca road including making access for plying the truck or any other conveyance beyond 300 m and upto a distance of 5.00 km from the excavated point including cost of stacking, loading, unloading, transporting, arrangement of land, if required by agency, spreading and levelling as necessary etc. complete. [Payment shall be made on the basis of net volume after deduction for void of 1/10th of gross volume of stack].

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

Dismantling of cement concrete pavements by mechanical means using pneumatic tools breaking to pieces not exceeding 0.02 cum in volume and stock piling at designated locations and disposal of dismantled materials upto a lead of 1000 m, stacking serviceable and unserviceable materials separately as per Technical Specification Clause 202 for Rural Roads of MORD.

Providing supplying and making suitable stack of Geo textile-Bags made of polypropylene multifilament woven fabric as per specification having suitable internal dimension to accommodate river sand not less than 100 Kg & subsequent filling the same with local available river sand weighing (gross wt.) not less than 100Kg. per bags, closing the bag by machine stitching with stitch density of 4-5 stitches per inch with PP MY (Polypropylene multifilament yarn) or equivalent with approved sewing thread as per specification & as directed by the Engineer-in-Charge. The rate includes all materials labours, and other incidental charges etc. complete. Specification of Geo-textile for manufacturinq Geo Bags : (a) Mass per Unit area : 240 gms./Sqm. (b) Tensile Strength : 40 KN / M. both warp and weftway (c) Apparent opening size (A.O.S.): 100 micron (maximum). (d) Ultra violate resistance : Percentage strength retain - 70% (Min) at 500 hours. (e) Water flow rate normal to the plane : 25 lit/sqm/s (head= 100 mm.)

Supplying at site and laying in position UV stabilized polypropylene woven geotextile of 430 GSM as filter, as per specification, including cost of preparing the bed, placing the geotextile as per profile with at least 15cm lapping, wherever required and anchorage at top, sewing / welding the overlapped portion, storage and transportation by all means, complete as per direction of the Engineer / Engineer's representative. Note: 1. Payment to be made on measurement of finished surface including anchoring length at top. Specification of Geotextile filter. a) Mass per unit area: 430 gms./Sqm b) Tensile Strength: 70 KN/m both warpway and weftway c) Apparent opening size (A.O.S.): 0.425mm d) Ultra violet resistance: Percentage strength retain- 80% (Min) at 500hrs exposure. e) Water flow rate normal to the plane: 25 lit/sqm/sec (head 100 mm)

Supplying at site and Labour charges for filling of High Density Polyethylene (HDPE) bag of size 0.84 m x 0.38 m conforming to BIS : 14252 : 2015 for bank protective works with silver sand including machine stitching the open end of the bag with thread as per design and placing the same on slope or dumping from bank within initial lead of 30m and all lifts including carriage and hire charges of all materials and equipments, cost of sand, transportation, incidental charges etc. all complete as directed by Engineer-in-Charge (Volume of earth/sand filled bag should not be less than 0.0328 cum). The rate includes cost of Silver sand.

Precast cement concrete blocks or lining units as per designed section and specification in nominal mix. proportion 1:1.5:3 (corresponding to M20 Grade) with well graded 20 mm down Pakur Variety coarse aggregate, including dressing, ramming, shuttering, finishing the surface by trowel without adding any additional cement and sand mortar, curing, transporting and laying the blocks or lining units at worksite in position over sand cushion/ filter layer with cold (paper) joints between the adjacent units, having gap varying from 0 to 5 mm as tolerance, with all leads and lifts including supply and carriage of all materials complete.

Taking out Jhaw/ Eucalyptus piles from river bed or from eleswhere including carrying, stacking materials in the nearest stake yard. Upto 17.5 cm.diameter.

Surface Dressing of the ground in any kind of soil including removing vegetation inequalities not exceeding 15 cm depth and disposal of the rubbish within a lead upto 7b m as directed.