Restoration and strengthening works of Eroded 10th Marginal embankment at upstream left bank of river Ganga near Biharitola, Birnagar area between Ch. 335.00 m and Ch. 380.00 (total working curve length 135 m) for the year 2026 (Reach-04)

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 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.

Supplying and labour charges for dumping and placing in position properly filled in High-Density Polyethylene (HDPE) bags having capacity 50 kg) with local earth or sand, sewing the bag 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, carriage by boat upto 8.00 Km and charge of filling bags with earth/sand and including the cost of earth /sand as per direction of the Engineer – in – Charge. NB: The volume of each earth/sand-filled bag should not be less than 0.0328 m3 (a) Where boats are necessary

Supplying and 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 the cost of hire charges of boat, boatmen and other necessary equipments and also including cost of bags, Nylon crates, carriage by boat upto 8.00 Km and charge of filling bags with earth/sand and including cost of earth /sand as per direction of the Engineer – in – Charge. NB: The volume of each earth/sand-filled bag should not be less than 0.028 m3 The size of the Nylon crate is 1 metre X 1 metre X 1 metre. (a) Where boats are necessary

Supplying at site and laying in position UV stabilized needle punched, stapled fibre/continuous filament polypropylene non-woven geotextile of 300gsm 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 Engineer-in-charge. B) Where boats are necessary

Supplying Jhaw/ Eucalyptus bullah piles at work site, including dressing and making one end pointed. (v) 20 cm av. diameter

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. (v) 20 cm av. diameter

Coal tarring with 5% pitch including cost of material and labour complete as per direction of the Engineer-in-charge. b) Two Coat

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 12 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)

Cutting, uprooting of roots & stumps of trees of different girth upto 1 meter depth below ground level or bed level & filling the root holes by soil and removal of branches, roots & stumps etc. including carriage and stacking as per instruction of theEngineer-in-charge (Measurement of girth at breast height of 90 cm) (a) Bamboo cluster (each cluster to be measured seperately) / Tea bushes.

Dressing and chilchalling flanks or slope of embankment including filling with earth or cutting upto 150mm. average thickness and ramming properly after sprinkling water

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