Tender For Emergent Restoration Of Damaged Sundarban River Embankment During New Moon Kotal On Dated 31.03.2025 To 02.04.2025 Facing River Borokalagachi (R B) By Constructing A Ring Bund For A Length Of 200 M. Near H O Gopal Sing, Mouza Atapur, G.P Monipur - Emergent restoration of damaged Sundarban river embankment during New Moon kotal on dated 31.03.2025 to 02.04.2025 facing River- Borokalagachi (R/B) by constructing a ring bund for a length of 200 m. near H/O Gopal Sing, mouza -Atapur, G.P- Monipur in Block-Sandeshkhali-II under Kalinagar Irrigation Sub-Division of Basirhat Irrigation Division. Sl. No. Item Description 1 Earth work from borrow pits over existing embankment or for repairs to embankment, closing breaches etc. within an initial lead of 30 metre and lift of 1.50 metre including breaking clods and depositing the same in layers not exceeding 25 cm. and rough dressing etc. complete as per profile. 2 Earthwork in excavation in all kinds of soil for making embankments, repairs to the embankment, closing breaches etc. as per profile including supply and transporting the earth by truck or tractor or any other mechanical means on land , including loading, transporting, unloading and stacking with all lifts bothways and head load where necessary and depositing the same on embankments, clannels, filling depressions in requisite profile, levelling as per direction of the Engineer-in-charge within a lead of,NB :- Measurement to be taken on the basis of stack measurement / prepost work section measurement after deduction of void as per norms. No extra payment will be made for stacking.A) Beyond 500 metre and upto 1.00 km 3 Supplying, dressing and stacking at site bamboo pins above 5 cm. diameter and up7.5cm.diameter. (Dia.tobe measured at mid length). 4 Driving bamboo pins in standing or flowing water including scaffolding and driving appliances.Where boats are not necessary 5 Supplying, fitting and fixing with iron nails half splitbamboowailingpieces (av.dia.of bamboo not less than 5.0 cm.) 6 Supplying Jhaw / Eucalyptus bullah piles at work site, including dressing and making one end pointed. (ii) 12.5 cm av. Diameter 7 Labour for driving Jhaw / Eucalyptus bullah piles by monkey in all sorts of soil including hoisting and placing piles in position, protecting the pile head with iron ring and cutting and shaping heads before and after driving and including hire and labour for necessary driving appliances and all tackles. (ii) 12.5 cm av. Diameter 8 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. 9 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.A) Where boats are not necessary 10 Supplying to site empty cement polythene bags (capacity 50kg) in good condition including stacking, incedental charges etc. all complete (capacity 50 kg). 11 Labour charges for filling empty cement gunny bag / polythene bag (capacity 50 kg) with all kinds of earth (wet or dry), sand or agreegates(stone / brick) and sewing as done in case of cement bags ,( tying with a knot after filling will not be accepted ) , and stacking within a lead of 30 metre as per direction of Engr-in-charge (cost is excluding the cost of any types of filling materials).NB:- Volume of earth/ sand filled bags should not be less than 0.028 cum/ bag. 12 Dumping in position earth / sand filledgunny / poly bags(capacity 50 kg) within a lead of 30 metre inclusive of all lifts. 13 Supplying Nylon cage netting 1 metre x 1 metre x 1 metre size with knot having mesh size 17.5 cm x 17.5 cm constructed with nylon thread (210x24) having tensile strength not less than 250Kg./sq.cm. including carriage, delivery and stacking at site inclusive of all taxes complete. 14 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 upto 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.(a) Where boats are not necessary. 15 Making cubical bamboo porcupine cages with bamboo of 60 mm to 75 mm 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 75cm 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 the cages with 1st class kiln burn Brick @80 nos bricks per cage. 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 complete as per direction of the Engineer - in - Charge . (N.B::If GI wire netting is not considered then Rs.348.00 per cage may be deducted from the following costs, towards cost of wire netting including OH and conctarcors profit .)For cages of size 75cm x 75cm x 75cm with 1st class kiln burn Bricks(a) Single cage. 16 Extra rate for items above for dumping by boat in flowing water including cost of hiring of boat, boatman,loading into boat and dumping in specified location including all other equipments etc. complete as per direction of the Engineer-in-charge.
