Bank protection work at the upstream left bank of river Ganga near Birnagar area from Ch 1530 m to Ch 2000 m. Total working length 558 m. Reach 1

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-in-charge. (a) Ordinary soil / local soil / soil mixed with moorum or kankar / silt, dry or moist / slushy silt / sticky soil.

Supplying Nylon cage netting 1meter x1meter x1meter size with knot having mesh size 17.5 cmx17.5 cm constructed with nylon thread ( 210x24) having tensile strength not less than 250 kg/sq cm including carriage,delevary and stacking at site inclusive of all taxes complete.

Supplying at site High Density Polyethylene (HDPE) bag of size 0.84 m x 0.38 m conforming to BIS : 14252 : 2015 for bank protective works including all cost of cost of transportation on road by all means,including other incidental charges complete. Note: Payment will be made subject to the result of 3rd Party Testing, to be done by the Engineer-in-charge departmentally. Paragraphs 2.8 including the sub-paragraphs, i.e. 2.8.1 and 2.8.2 under the Chapter of “Specification for Works” in the USoR shall be reproduced and included in the tender document as “Specification and Special Terms & Conditions for High Density Polyethylene (HDPE) Bags” in case of use of this item in the estimate.”

Labour charges for filling HDPE bags with filler materials (earth/sand), 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 but excluding the cost of filler materials as directed by Engineer-in-Charge (Volume of earth/sand filled bag should not be less than 0.0328 cum)

Extra rate for item above for dumping by boat in flowing/stagnant water including the cost of hiring of boat, boatman, including loading into boat and dumping in specified location including all other equipments etc complete as per direction of Engr-in-charge.

Labour charges for dumping and placing in position properly filled in Nylon crates with filled in gunny/poly cement bags (minimum 25 nos. having capacity 50 kg) with local earth or sand, sewing and tying the crate with nylon wire within a lead of 150 m. and all lifts in river slope or bed by cutting trenches up to 50 cms depth, if necessary, or by boat including cost of hire charges of boat, boatmen and other necessary equipments and also including cost of bags, carriage and charge of filling bags with earth / sand but excluding cost of nylon crate as per direction of the Engineer – in – Charge. NB:- Volume of each earth/ sand filled bags should not be less than 0.028 m3 Size of Nylon crate is 1metre X 1metre X 1metre (b) Where boats are necessary This is applicable for filling of HDPE bags in nylon crates

Labour charges for dumping and placing in position properly filled in Nylon crates with filled in gunny/poly cement bags (minimum 25 nos. having capacity 50 kg) with local earth or sand, sewing and tying the crate with nylon wire within a lead of 150 m. and all lifts in river slope or bed by cutting trenches up to 50 cms depth, if necessary, or by boat including cost of hire charges of boat, boatmen and other necessary equipments and also including cost of bags, carriage and charge of filling bags with earth / sand but excluding cost of nylon crate as per direction of the Engineer – in – Charge. NB:- Volume of each earth/ sand filled bags should not be less than 0.028 m3 Size of Nylon crate is 1metre X 1metre X 1metre (b) Where boats are necessary.. This is applicable for filling of poly cement bags in nylon crates

Darma mat stiffened with split bamboo wailing pieces in both direction @ 50 cm c/c, placed, fitted and fixed with frame work or behind piling works and tied with 22 SWG, GI wire as per direction including cost, carriage and supplying all materials to site complete.

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-in-charge. Note: 1. Payment to be made on measurement of finished surface without lapping, but including anchoring length at top. 2. Payment will be made subject to the result of 3rd Party Testing, to be done by the Engineer-in-charge departmentally. Paragraphs 2.7.7, 2.7.9 and 2.7.10 under the Chapter of “Specification for Works” in the USoR shall be reproduced and included in the tender document as “Specification & Special Terms & Conditions for Geotextile” in case of use of this item in the estimate. 3. This particular item is to be used in special cases, either in continuation of previous usage or after offering adequate justification from techno-economical angles.