Protection of Maibang area from erosion caused by Mahur River (L/B).

Amount

Clearing light jungles and trees up to 15 cm. girth including cutting, uprooting roots and stumps, removing them from the site of the work upto a distance of 30m complete as directed. (When 30% of the area is covered by shrubs, trees etc).

Earthwork in bank trimming to the designed section /slope including removing the soils at a safe distance, complete as directed.

Collection of river boulder of size 23cm to 30cm in average and minimum weight 30 Kg having (i) specific gravity not less than 2.65 (ii) Aggregate Crushing <30% (wearing) & <45% (non-wearing) (iii) Impact value(%) max <30% (wearing) & <45% (non-wearing) and (iv) Abration Value (%) max <30% (wearing) & <50% (non-wearing) (Materials properties conforming to IS 2386 part III & IV 1963) free from dust, dirt and other foreign materials including necessary carriage and stacking in regular measurable stacks at site, monopoly, etc. complete as directed. (10% under sized (not less than 10 cm) boulder is allowable for packing/filling the gaps occurred during execution of works) Complete as directed. (15% deduction will be made from the stack measured quantities on account of void)

Galvanized wire netting sheet made of 8 SWG wire 152mm square mesh in sheet 2.57m x 1.66m with longitudinal wire at 152mm centre and 76mm projection of each wire on all sides beyond the net size of 2.42m x 1.50m having knots of 12 SWG at every joints, weight of each sheet should not be less than 6.3 kg/sheet.

Labour charge for loose dumping boulder of 23cm to 30cm size in loose in eroded portion of river bank/bed including handling charge and including site carriage of boulder from stackyard/dumpsite within a distance of 150 m, etc. complete as directed

Labour charge for dumping boulder in cage made of wire-netting sheets of size 2.57x1.66m of 8G galvanised wire making the cage from 2 nos. of wires, filling boulder inside in cage, launching the same in position, including all handling charges and including site carriage of boulder from stack yard/dumpsite within a distance of 150 m, etc. Complete as directed (Wire netting sheets to be supplied by the Department free of cost) (a) Without boat.

Local carriage of boulder, metal, gravel/sand etc. from the approachable site beyond 150m and up to 3.00Km from the work site including loading from stack and unloading at work site with 10 (ten) ton capacity truck, supplying P.O.L. etc. complete as directed

Preparation of stack yard of boulder/metal etc. including cutting light jungles and removing the same to a safe distance, levelling the ground, filling up depressions etc. complete as directed. (Considering 20% area are open between stacks)

Construction of temporary shed of two roof with mud plinth of 0.45 m height above ground level with Bhaluka bamboo post 1.5 m apart driven at at least 0.75 m below ground and height above plinth 2.5m. Split Jatti bamboo wall mud plastering white washing 2 coats, 10 cm thick touch roofing over bamboo rua frame placing at 0.15 m clear apart fitted with bamboo kamies from binding doors and windows with Bamboo Chattai strengthening with Bamboo frame binding with wire etc complete as directed. (Using Bhaluka Bamboo at the rate of 6.00 nos/ Rm & Jati Bamboo at the rate of 61.00nos / Rm).

Ashit Roy

M/S STAR CONSTRUCTIONS

PULIN BORGOHAIN

BHASKAR MONI BARMAN