Anti-erosion measures to protect Gulapbari village and surrounding areas from Jatinga river (L/B)

Amount

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

Earthwork in bank trimming to the designed section/slope by manual means including removing the trimmed soils to a minimum distance of 30 m, 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 Chrushing <30% (wearing) & < 45% (non wearing) (III) Impact Value(%) max <30% (wearing) & < 45% (non wearing) and (IV) Abration Value(%) <30% (wearing) & < 50% (non wearing)( Materials 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 152 mm center and 76mm projection of each wire on all sides beyong the net size of 2.42m x 1.5m having knots of 12 SWG at every joints, weight of each sheet should not be less than 6.3 kg/ sheet.

Hexagonal Wire Netting Roll made of 8 SWG wire triply twisted 152mm mesh of size 15.24m x 3.66m longitudinal. Weight of each roll should not be less than 83 kg / roll.

Labour charge for dumping boulder in cage made of wire netting sheets of size 2.57x1.66m of 8G galvanized wire making the cage from 2 nos. of wire netting sheet by tying the projected wires, filling boulder inside in cage, launching the same in position, including all handling charges and including site carriage of boulder from stack yard/ dump site within a distance of 150 m. etc. complete as directed.(wire netting sheets to be supplied by the Department free of cost).

Labour charge for dumping boulder in sausage made of hexagonal wire netting rolls of size (15.24x3.66) m cutting the netting as required making the sausage by tying the projected ends with 8G wire including supplying & tying the wire at every joint after filling the sausage with boulders properly and launching in places handling charges including site carriage of boulder from stack yard/ dump site within a distance of 150 m. etc. complete as directed. (wire netting sheets to be supplied by the Department free of cost).

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. (45% of total boulder)

Carriage of wire netting sheets of size 2.57 X 1.67 m made of 8 G wire of 152mm Sq. mesh including loading & unloading , Stacking cost of P.O.L. ,etc. complete and including hire charge of truck with driver and handyman, etc. completed as directed.

Carriage of wire netting Rolls from Haflong W.R. Go-down to work site including loading and unloading and payment of hire charge of truck, cost of fuel etc. including payment of wages of driver one handyman etc. complete as directed.

Preparation of stack yard of boulder/metal etc. including cutting light jungles and removing the same to a safe distance, leveling the ground , filling up depressions etc. complete as directed.

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 atleast 0.75 m below ground and height above plinth of 2.5m. Split Jatti bamboo/tarza wall 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, roofing with TATA Shaktee roofing sheets etc., complete as directed. (Using Bhaluka Bamboo at the rate of 6.00 nos/ Rm & Jati Bamboo at the rate of 61.00nos / Rm)

SANJOY OWARY

BIREN PEGU

BHASKAR MONI BARMAN

Chandit Kumar Baro

Bimal Hanse

DEEPAK KUMAR SINHA