Conservation, Restoration and Rejuvenation works of the Oram Beel of Morigaon District under Assam SWIFT Project

DE-WEEDING: 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.

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. Peripheral Bund with de-silted soil (36960 Cum) Rearing Tank bund with de-silted soil (6300Cum)

ForTurfing Furnishing and laying of live sods of perennial turf-forming grass on embankment slopes, verges, or other locations as shown on the drawings or as directed by the Engineer, including preparation of ground, stacking the sods, and watering, as per Clause 309.

PLAIN/ REINFORCEMENT CONCRETE: Providing concrete for plain/ reinforced concrete in open foundations complete as per drawings and technical specifications Clause 802, 803, 1202 & 1203 I. With crushed Stone A.P.C.C grade M 10 i.Nominal mix 1:3:6 HP Culvert (2.90 Cum)

BEDDING FOR PIPE: Bedding of pipe (ii) Type B(First Class) Bedding Laying (FirstClass)bedding on well compacted approved granular material as per Clause 1105 (ii) (i) Sand Filling peripheral Bund (14.11 Cum)

BRICK MASONRY WORK: Brick masonry work in cement mortar in foundation complete excluding pointing and plastering as per drawing and technical specifications Clauses 600, 1202 & 1203 i) Brick masonry in 1:4 cement mortar HPC head wall (29.14 Cum)

CEMENT MORTAR: Plastering with cement mortar (1:4), 15 mm thick on brickwork in substructure as per technical specification Clauses 613.4 & 1204 HPC head wall (34.40 Cum)

NP3 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. (B) 1000 mm dia

Desilting and disposal of Soil Removal of unsuitable soil including excavation, loading and disposal upto 1000 m lead but excluding compaction ground supporting embankment subgrade repalcement by suitable soil, which shall be paid separately as per Clause 303.5.2 as per Technical Specification Clause 302.3.11 Quantiy from "Calculation for Surplus soil for disposal after Water Pool creation"

Desilting Part of the Beel & Construction of Silt Trap 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.