Flood Management by Capacity Augmentation of Maijan Wetland Upstream of Dibrugarh Town, Package 2.

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 and Sticky Soil

Carriage of excavated muddy/slushy soil/garbage by truck of 10 Ton capacity and depositing the same in suitable dumping ground up-to an average lead of 2.50 Km including cost of P.O.L. and loading/unloading charges etc. complete as directed.

Supply of geo textile tube (Mega Container) with the minimum properties as mentioned below: Polymer: PP of 400 GSM or above Tube Circumference: 10m + 5% Fill Port (diameter): 30 to 45 cm Tensile Strength (MD): ≥100 kN/m Tensile Strength (CD):≥100 kN/m Elongation - MD:≤ 25% AOS: ≤ 0.180 mm Permittivity:≥ 0.40 S-1 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 250m, etc. including setting up of the tube laying platform, complete as directed.

Collection and supply of sand from approved quarry of specified grade for construction work free from debries and other foreign material etc. complete as directed and carriage upto site.

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.

Earth work in embankment by Mechanical means by truck carriage with locally available ordinary/normal soil excluding sandy and rocky soil free from roots & vegetation and filling in uniform layers not exceeding 25 cm thick including ploughing or roughening or benching the seats, removing all debries, breaking clods up to 4 cm cube, dressing as per design section and compaction in layers not exceeding 30 cm in thickness and core cutter soil test at every layer and every 500 m distance, etc. complete as directed. For initial lead up to 1 Km and for all lifts. For every Km extra lead beyond initial lead of 1 Km & up to 10 Km. (considering 2 Kms)

Excavation for Structures (Earth work in excavation of foundation of structures as per drawing and technical specification, including setting out, construction of shoring and bracing, removal of stumps and other deleterious matter, dressing of sides and bottom and backfilling with approved material. V) In marshy soil i) upto 3 m depth B) Mechanical Means (ii) With dewatering

Plain/Reinforced cement concrete, in open foundation complete as per drawing and technical specification including steel shuttering formwork. I. Without Plasticiser A. P.C.C grade M 15