Tender For maintenance of Completed Scheme Under Na-Ii (Horticulture Zone).Sub Head :- Revival Of Existing Rain Water Harvesting Structures By Cleaning And Replacement Of Filter Media At Various Parks Under The Territorial Jurisdiction Of Horticultur
Tender Overview
Project Description
Tender for maintenance of Completed Scheme Under Na-Ii (Horticulture Zone).Sub Head :- Revival Of Existing Rain Water Harvesting Structures By Cleaning And Replacement Of Filter Media At Various Parks Under The Territorial Jurisdiction Of Horticulture Civil Division-7.
BOQ
| Sl. No. | Item Description |
| 1 | Surface dressing of the ground including removing vegetation and inequalities not exceeding 15 cm deep and disposal of rubbish, lead up to 50 m and lift up to 1.5 m. (a) All kinds of soil. |
| 2 | Demolishing R.C.C. work manually/ by mechanical means including stacking of steel bars and disposal of unserviceable material within 50 metres lead as per direction of Engineer - in- charge. |
| 3 | Demolishing brick work manually/ by mechanical means including stacking of serviceable material and disposal of unserviceable material within 50 metres lead as per direction of Engineer-in-charge.In cement mortar |
| 4 | Earth work in excavation by mechanical means (Hydraulic excavator)/ manual means over areas (exceeding 30 cm in depth, 1.5 m in width as well as 10 sqm on plan) including getting out and disposal of excavated earth lead upto 50 m and for all lift, as directed by Engineer-in-charge. All kinds of soil |
| 5 | Extra for every additional lift of 1.5 m or part thereof in excavation / banking excavated or stacked materials.All kinds of soil |
| 6 | Dismantling old plaster or skirting raking out joints and cleaning the surface for plaster including disposal of rubbish to the dumping ground within 50 metres lead. |
| 7 | Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level :(a) 1:5:10 (1 cement : 5 fine sand derived from natural sources: 10 graded stone aggregate 40 mm nominal size derived from natural sources) |
| 8 | Brick work with common burnt clay F.P.S. (non modular) bricks of class designation 7.5 in foundation and plinth in: Cement mortar 1:4 (1 cement : 4 coarse sand) |
| 9 | 12 mm cement plaster finished with a floating coat of neat cement of mix : 1:4 (1 cement: 4 fine sand) |
| 10 | Cement plaster 1:3 (1 cement: 3 coarse sand) finished with a floating coat of neat cement.(a) 12 mm cement plaster |
| 11 | Providing and fixing 100 mm thick factory made machine batched and machine mixed pre-cast R.C.C. horizontal grating with frame complete as per standard design on RWH collecting chambers of various sizes, of M-25 grade cement concrete for RCC work, including cost of centering, shuttering, reinforcement of 10 mm dia TMT bars of Fe 500 grade @ maximum 100 mm c/c on both ways, neat cement punning on finished surface etc i/c cost of cartage ,all leads & lift, handling at site etc. all complete as per direction of Engineer-in-Charge. |
| 12 | Providing and fixing unplasticised Polyvinyl Chloride (UPVC) rain water pipes conforming to IS : 13592 Type A, including jointing with seal ring conforming to IS : 5382, having working pressure 4 Kg/cm2 including all UPVC plain fittings. This includes jointing of pipes & fittings with solvent cement, including trenching, refilling & testing of joints complete as per direction of Engineer in Charge. External work (i) Single socketed pipes.(a) 200 mm dia Pipes. |
| 13 | Supplying, filling, spreading & leveling stone boulders of size range 5 cm to 20 cm, in recharge pit, in the required thickness, for all leads & lifts, all complete as per direction of Engineer-in-charge. |
| 14 | Supplying, filling, spreading & leveling gravels of size range 5 mm to 10 mm, in the recharge pit, over the existing layer of boulders, in required thickness, for all leads & lifts, all complete as per direction of Engineer in-charge. |
| 15 | Supplying, filling, spreading & leveling coarse sand of size range 1.5 mm to 2 mm in recharge pit, in required thickness over gravel layer, for all leads & lifts, all complete as per direction of Engineer -in-charge. |
| 16 | Providing and laying/wrapping/fixing double-layer non-woven needle-punched geotextile membrane of 400 GSM (each layer), manufactured from continuous polypropylene/polyester fibres, having minimum thickness of 3.0 mm, minimum tear strength of 250 N (machine direction) and 215 N (cross direction) as per ASTM D4533, minimum CBR puncture strength of 1550 N as per ASTM D6241, minimum elongation at break of 57% as per ASTM D4595, Apparent Opening Size (AOS/O95) between 0.08 mm and 0.18 mm as per ASTM D4751, and minimum permittivity of 1.5 sec⁻¹ as per ASTM D4491, including cutting, overlapping (not less than 20 cm), stitching/heat welding wherever required, laying and fixing complete, as per the manufacturer's specifications and directions of the Engineer-in-Charge. The geotextile shall possess high permeability and porosity to facilitate filtration and percolation of rainwater while preventing migration of soil particles, and shall be resistant to chemical degradation, biological degradation, ultraviolet exposure during installation, and attack by soil microorganisms. Manufacturer's original test certificate shall be submitted and approved before execution of the work. |
| 17 | Re-development of bore well in accordance with IS : 2800 (part I) and IS: 11189, to maximize the inflow of water into the surrounding soil by removing silt or any other clogging material from the well, with required capacity air compressor running the compressor for required time or any suitable method approved by Engineer-in-Charge, till well is fully developed, measuring static level & draw down etc. by step draw down method, collecting water samples & getting tested in approved laboratory, including disinfection of borewell, all complete, including hire & labour charges of air compressor, tools & accessories etc., all as per requirement and direction of Engineer-in-charge. |
| 18 | Providing and fixing suitable size threaded mild steel cap or spot welded plate to the top of bore well housing/ casing pipe, removable as per requirement, all complete for borewell of 150 mm dia |
| 19 | Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level :(a) 1:2:4 (1 cement : 2 coarse sand (zone-III) derived from natural sources : 4 graded stone aggregate 20 mm nominal size derived from natural sources) |
| 20 | Providing and placing in position 100mm thick factory made machine batched and machine mixed Precast RCC Rectangular Covers on drains of footpath of various sizes, of M-25 grade cement concrete for RCC work, including cost of centering, shuttering, reinforcement of 8mm dia TMT bars of Fe 500 grade @ maximum 100mm c/c on both ways , neat cement punning on finished surface, properly encased on all edges with 1.6 mm thick , 100mm wide MS sheet duly painted over priming coat , reinforcement to be welded at edges with MS sheet and providing 2 Nos. 12 mm dia bar for hooks etc i/c cost of cartage ,all leads & lift, handling at site etc. all complete as per direction of Engineer-in-Charge. |
| 21 | Disposal of building rubbish / malba / similar unserviceable, dismantled or waste materials by mechanical means, including loading, transporting, unloading to approved municipal dumping ground or as approved by Engineer-in-charge, beyond 50 m initial lead, for all leads including all lifts involved. |
| 22 | Modified Estimated Cost for item no. 1 to 21 after using Correction factor on DSR 2023 on account of GST@ 0.973 i.e. Rs.20,67,182/- (total estimated cost is to be reduced by 2.7% accordingly) |
| 23 | Add Cost Index @3% on all DSR items ( except item no. 11, 12, 16 & 17) i.e. Rs. 1394625.00 Please Enable Macros to View BoQ information |
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