Augmentation of Storage Capacity of Jelengitup Chinamornigarh Wetland for flood regulation, Package 1.

Clearing of deposited compact water hyacinth root and other aquatic plants from the bed of drains/channels including cutting, removing and stacking at places away from the bank etc. Complete with all lead and lift etc. complete as directed.

Earth work in excavation of drainage channel by mechanical means to the proper grade and slopes as required including disposing the excavated debris/soil to a safe distance of minimum 50 m distance, etc. complete as directed. For lead up to 50 m and all lifts Normal Soil

Earth work in excavation of drainage channel by mechanical means to the proper grade and slopes as required including disposing the excavated debris/soil to a safe distance of minimum 50 m distance, etc. complete as directed. For lead up to 50 m and all lifts Wet & Sticky Soil

Compaction of locally available ordinary/normal soil excluding sandy and rocky soil free from roots & vegetation and filling in uniform layers not exceeding 30 cm thick including ploughing or roughening or benching the seats, removing all debries, dressing as per design section and compaction with three wheel static roller of 80-100 KN capacity in layers not exceeding 30 cm in thickness and core cutter soil test at every 500m distance, etc. complete as directed.

Supply of geo textile tube (Mega Container) with the minimum properties as mentioned below: - o Polymer: PP of 400 GSM or above o Tube Circumference: 10m + 5% o Fill Port (diameter): 30 to 45 cm o Tensile Strength (MD): ≥ 100 kN/m o Tensile Strength (CD): ≥ 100 kN/m o Elongation – MD: ≤ 25% o AOS: ≤ 0.180 mm o Permittivity: ≥ 0.40 S-1 o Length: 25 m

Filling of geo-tubes (25m long and 10m circumference) with sand/silt of volume 176 cum by using mud pump not below the fill height of 1.60m as per drawing and technical specifications, binding the tube with 9mm nylon rope to jati bamboo pegs of length 2m placed @ 5m c/c along both sides of the tube to keep the tube in position during filling, as specified and directed including all loading, unloading and handling charges and local carriage upto a distance of 250M, pumping slurry using mud pump from a distance upto 500m, etc. including setting up of the tube laying platform, complete as directed.

Collection and supply of River silt by truck carriage free from debries and other foreign material, etc. complete as directed. By mechanical Means For initial up to 1.00 Km & for all lifts.

Excavation for Structures Earthwork in excavation for structures as per drawing and technical specifications Clause 305.1 including setting out, construction of shoring and bracing, removal of stumps and other deleterious material and disposal upto a lead of 50 m, dressing of sides and bottom and backfilling in trenches with excavated suitable material. V) Marshy soil

Plain/reinforced cement concrete in substructure complete as per drawings and technical specification Clauses 802, 804, 805, 806, 807, 1202 ans 1204 A) With Crushed Stone II) P.C.C. grade M 20 (i) Nominal mix (1:2:4)

Plain/Reinforced cement concrete, in sub structure complete as per drawing and technical specification and steel shuttering formwork P) With plasticiser ( Masterplast PL-1/SPL-2 or equivalent ), air entraining and water reducing plasticiser ( Masterplast PAE or equivalent) and accelerating plasticiser( Masterplast ACPL orequivalent) conforming to IS-9103-1999 (F) RCC Grade M 25 (a) for height upto 5m. Case I: Using concrete mixer