Interim measures for anti erosion work on the right bank of river ganga downstream of Farakka barrage between Ch 6300 m Ch 6600 300 mtrs (Reach 04) near Nayansukh Brhamngram under Feeder Canal Division, Farakka Barrage Project

Supply of RCC (1:2:4) Porcupine (having 6 members each) of size of each member 0.10m x0.10mx 3.00 m reinforced with 4 (four) nos of 8 mm dia M.S. rod & 6mm dia MS stirrups having 27 cm interval holes of 20 mm dia at 50 cm inside from both ends and in same face and in either face of post another two nos of hole of size 20 mm dia at 65 cm inside from both ends including properly curing and supply at work site including assembling , laying on land , fixing & tying of bushes with G.I binding wire as directed.

Supplying at site and laying in position UV stabilized needle punched, stapled fibre / continuous filament polypropylene non-woven geotextile of 300 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.

Supplying fitting, fixing Darma mat in flowing or stagnant water or in dry areas with 16 SWG GI wire as per direction of the Engineerr-in-charge. B) Where boats are necessary

M 15 RCC block of size 1.25 m x 1.25 m x 1.00 m. Cast in-situ with centering , shuttering, and removal of formwork for mass concrete including proper curing as per direction of the Engineer-in-Charge.

Supplying fitting and fixing and tying the porcupine to each other by steel wire rope@ 6 mm per metre (GI Guy rope 6 mm Steel core) near the top and bottom third portion of each porcupine and anchored into the river bed and bank as necessary by using anchor block with anchor bolt with clamp as per direction of the Engineer-in-Charge.

Making cubical bamboo porcupine cages with bamboo of 60 mm to 75mm dia. having length of 2 metre each for all horizontal and vertical struts and 2.8 metre length for diagonal struts, 3 nos horizontal and 3 nos vertical struts should be placed equi-distant from each face to make the square cage of outer dimension 75 cm x 75 cm and projecting each strut by 60 cm on all directions. Two nos dioganals or cross bamboo posts should be placed on each face having their centre tied with the centre of cage properly including fitting, fixing corners, vertical, horizontal and diagonal struts with iron nails not less than 20 cm long and tying corners with 16 SWG galvanized iron wire, filling in the cages with boulders / lump aggregates. Cages builts with 10 SWG hexagonal or square pattern 10 cm mesh, with proper lapping, tying and sewing with 10 SWG GI wire including cost of all materials, carriage to site and laying the same in the bed or slope of the river, filling the same with the filler materials complete as per direction of the Engineer - in - Charge but excluding the cost & carriage of boulder / lump aggregate up to site. ( N.B::- If G I wirenetting is not considered then Rs. 348.00 per cage may be deducted from the following costs, towards cost of wire netting including OH and conctarcor's profits.) For cages of size 75cm x 75cm x 75cm with boulder (a) Single cage

Labour charges for dumping and placing in position properly filled in Nylon crates with filled in High-Density Polyethylene (HDPE) bags (minimum 21 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 upto 50 cms depth, if necessary, or by boat including the cost of hire charges of boat, boatmen and other necessary equipments and also including cost of bags, Nylon crates, carriage and charge of filling bags with earth/sand excluding the cost of earth /sand but consider the carriage ( transport) charge by boat as per direction of the Engineer – in – Charge.The size of the Nylon crate is 1 metre X 1 metre X 1 metre. Note :- This items shall be executed on site through land or boats as and when required as per available site conditions and water levels as per Engineer -In - Charge this item is complete with considerable all hiring charges , labour charge , if any incidential charge

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

Making sausage cage with 12 SWG galvanized iron wire of 125 mm. x 125 mm. mesh wire netting with proper lapping of minimum 150 mm. including sewing the joints with 10 SWG G I wire and supply of all materials and equipments including placing the sausage cage in position, filling the same with boulder or lump aggregates complete as per direction of the Engineer-in-charge but excluding the cost of boulder / lump aggregates and its carriage upto site. a) Size :- 1.00 m x 1.00 m x 1.00 m.

Supply of stone boulder at site including Royalty, loading, unloading, transportation, stacking, stacking unloadedboulder on private land all complete. Pakur source (Each weighing 25 kg & above)