Construction of 01 nos of water harvesting Structure (Traditional Zing) structures/pond at Durbuk Forest range at Chushul old bagh of Durbuk Forest Range for the year 2024-25

Amount

Earth work in excavation by mechanical means (hydraulic excavator) over areas (Exceeding 30cm in depth, 1.5mtr in width as well as 10sqm 0n plan)including disposal of excavated earth, lead up to 50m and lift upto 1.5m.All kind of soil Area/volume circle =(πr^2 h )

Random rubble masonry with hard stone in foundation and plinth including leveling up with cement concrete 1:6:12 (1 cement : 6 coarse sand : 12 graded stone aggregate 20mm nominal size) at plinth level with Cement mortar 1:6 (1 cement : 6 coarse sand) Periphery of semicircle =2 πR

Providing and laying DPC 50mm thick with cement concrete 1:2:4 (1 cement: 2 coarse sand: 4 graded stone aggregate 12.5mm nominal size) Nallah

Carriage of materials by M.T a) cement avg(625bag). (Lead 55 kms) Qty.= 15.63 M.T

Carriage of materials by M.T a) Sand and stone agg. Avg.(Lead=15km)

Carriage of materials by M.T stone avg. (Lead= 10km)

Cost and installation of pipe for spill over includes complete works etc. x 2nos

M/S TSERING DORJEY GOVT CONTRACTOR (BID ID -129272)

M/S JEKMAT TANBA (BID ID -129233)