Conservation, Restoration and Rejuvenation works of the Natun Bolai Arasuti Beel under Dibrugarh District under Assam SWIFT Project

Weeds clearance : Clearance of different types and nature of Water Hyacinth, Aquatic weeds, Taranies, Dalanies, Pitanies, repeated vegetation etc. from Beels/Tanks/Ponds/swampy and marshy areas dragging manually/ mechanically/ through machinery etc. with necessary ropes, bamboos, chains and other debries devices etc. making patches, cutting into pieces with the help of knifes/sickles/sews as necessary and depositing and stocking in the marginal areas of the beels/tanks/ponds/swampy and marshy areas in a regular form of bundhs or heaps within a lead of 100 m and lift up to 2.50 m as per direction of the deptt. etc complete (pushing out the patches or pieces of vegetations may also be made through the connecting channels with the river and burning the lifted vegetation after sunshine as and when applicable). i) Thin and floating water hyacinths and other aquatic weeds etc.

Weeds clearance : Clearance of different types and nature of Water Hyacinth, Aquatic weeds, Taranies, Dalanies, Pitanies, repeated vegetation etc. from Beels/Tanks/Ponds/swampy and marshy areas dragging manually/ mechanically/ through machinery etc. with necessary ropes, bamboos, chains and other debries devices etc. making patches, cutting into pieces with the help of knifes/sickles/sews as necessary and depositing and stocking in the marginal areas of the beels/tanks/ponds/swampy and marshy areas in a regular form of bundhs or heaps within a lead of 100 m and lift up to 2.50 m as per direction of the deptt. etc complete (pushing out the patches or pieces of vegetations may also be made through the connecting channels with the river and burning the lifted vegetation after sunshine as and when applicable). ii) Thick and floating water hyacinths and other aquatic weeds etc.

Weeds clearance : Clearance of different types and nature of Water Hyacinth, Aquatic weeds, Taranies, Dalanies, Pitanies, repeated vegetation etc. from Beels/Tanks/Ponds/swampy and marshy areas dragging manually/ mechanically/ through machinery etc. with necessary ropes, bamboos, chains and other debries devices etc. making patches, cutting into pieces with the help of knifes/sickles/sews as necessary and depositing and stocking in the marginal areas of the beels/tanks/ponds/swampy and marshy areas in a regular form of bundhs or heaps within a lead of 100 m and lift up to 2.50 m as per direction of the deptt. etc complete (pushing out the patches or pieces of vegetations may also be made through the connecting channels with the river and burning the lifted vegetation after sunshine as and when applicable). iii) Thick and floating Taranies,Dalanies, Pitanies and other marginal aquatic weeds etc. upto a depth of 50 cm.

DE-SILTING & EXCAVATION: Removal of unsuitable soil including excavation, loading and disposal upto 1000 m lead from the beds of Beels/Tanks/ Ponds/ Swampy lands to the proper grade and slopes as required and utilizing the soil in construction of embankment or repairing of existing embankment on all sides, lifting in uniform layers not exceeding 20 cm thick (excluding compaction), clearing light jungles and trees up to 50 cm girth from the site of work, dug belling, profiling, ploughing or roughening or benching the seat, breaking clods up to 25 mm cube ramming, removing roots and vegetation, dressing to the designed section complete as directed. All kind of soil. The de-silted soil is utilised for construction peripheral bund, rearing tank bund and Approach Road

TURFING: Furnishing and laying of the live sods of perennial turf forming grass on embankment slope, verges or other locations shownon the drawingor as directed by the Engineer including preparation of ground, fetching of sods and watering as per Technical Specification Clause 309.

Hume pipe laying at Bund : Providing and laying reinforced cement concrete pipe NP3 for culverts on first class bedding of granular material in single row including fixing collar with cement mortar 1:2 but excluding excavation, protection works, backfilling, concrete and masonry works in head walls and parapets Clause 1106..........NP3 HP...600 mm dia

EARTHWORK IN EXCAVATION: 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... (I) Ordinary soil.Upto 15.0m Depth For HP Culvert

PLAIN/ REINFORCEMENT CONCRETE: Plain Cement Concrete M15 (1:3:6 nominal mix) in levelling course below open foundation of Head walls as per drawings & Technical Specification Clause 1109

BEDDING FOR PIPE: Bedding for Pipe : Type B (First Class) Bedding..Laying (First Class) bedding on well compacted sand, moorum or approved granular material as per Clause 1105 (ii)Granular material

LAYING OF HP PIPE: Providing and laying reinforced cement concrete pipe NP3 for culverts on first class bedding of granular material in single row including fixing collar with cement mortar 1:2 but excluding excavation, protection works, backfilling, concrete and masonry works in head walls and parapets Clause 1106. 1000 mm dia