Construction of Integrated storm water drain in Puzhal Surplus South Watershed of Kosasthalaiyar basin in the extended areas of Greater Chennai Corporation (Package 25 - Outfall GP11)

Amount

Bill - 1 : Construction of Storm Water Drain and Canal Improvement works

Cutting and clearing heavy jungle.

Picking existing black top surface - 2 to 10cm thick including all labour charges

Earth work excavation for foundation in all kinds of soils invarying depths including dismantling any masonry or roots met within foundation and shoring with planks and baling water if necessary including clearing and levelling the site etc.,and excluding refilling, complete with an initial lead of 10m and lift of 2m including earth work excavation for trial pit also.

Plain Cement concrete work 1:4:8 (1 cement, 4 M-sand and 8 blue granite broken stone jelly 40mm gauge) including consolidation curing, etc. complete for foundation, etc. upto basement road cut restoration base layer as directed by the Project Manager or his representative.

Supplying and erecting centering for sides and soffits including supports and shuttering upto 3m high for plane surface such asside slabs of RCC boxing and similar vertical RCC slab,etc.,withall cross bracings using mild steel sheets of size 90x60cm and 10gauge stiffened with welded mild steel angles of size 25x25x3mm for boarding laid over Oak (country wood) joists of size 10x6.5cm spaced at about 90cm centre to centre and supported by casuarina props of 10 to 13cm dia spaced at 75cm centre to centre etc.,complete as directed by the Project Manager or his representative.

Supplying and placing of Ready Mix M20 Graded of Concrete confirming to IS 456/2000 for Reinforcement Cement Concrete Structural elements under controlled water cement ratio using 20mm and down graded machine broken granite stone jelly including transportation and pumping excluding cost of centering and shuttering and reinforcement but including curing, finishing etc including road cut restoration as top layer to be merged with existing BT surface as directed by the Project Manager or his representative.

Supplying and fabricating RTS / TMT STEEL rods including cutting, bending hooks, cranking, fabricating, assembling and laying in exact position,typing with soft steel wire 16 gauge ,etc., complete conforming to BIS std.

Supplying and fixing of 24" FRC manhole cover with frame 600mm dia clear opening heavy duty as per IS:12592/2002. The frame & cover shall bear a non fracture load of 20MT for 30seconds with frame height of 165mm, cover height 90mm, Bearing (Seating area of cover) 75mm with Hot Dip Galvanizing Hook of cover 16mm, frame edge protection flat of size 25 x 3mm exposed surface of M.S. rings shall be painted with anti corrosive bitumastic paint as directed by the Project Manager or his representative.

Supplying and fixing of 24” FRC Gully Gratings of 600mm Dia. with 12 holes of 50MM Dia. (Cover with Frame) complete one set. The frame and cover will bear a non fracture load of 10 M.T. for 30 Seconds with frame height of 165 mm (shall confirm I.S.12592/2002), cover height 90mm, Bearing (Seating area of cover) 75mm with Hot Dip Galvanizing Hook of cover 16mm M.S. rod, frame edge protection flat of size 25 x 3mm exposed surface of M.S. rings shall be painted with anti corrosive bitumastic paint as directed by the Project Manager or his representative.

Supplying and fixing of composite Fibreglass reinforced polymer Grating of size 1000mm (Length) x 155mm (Height) x 30mm thick for vertical application. The grating should have zero filter content and should be non-painted, but self pigmented. The filter content tested as per ISO 3451, the slot opening should be 30mmx30mm with an average wall thickness of 8mm as directed by the Project Manager or his representative.

Construction of cast -in- situ Silt Catch Pit With Rain Water Harvesting Structure of inner size 600 X 600 x 600 mm including necessary earth work excavation including providing foundation in PCC 1:5:10 under walls 150mm thick and cutting the existing storm water drain of size 300 x 150mm for fixing 2 Nos of 160mm dia PVC pipe on the storm water drain mouth, with RCC cast in situ wall of size 120mm in RCC 1:1.5:3 with steel of 10.60 kg including fixing Ductile Iron grating hinged with frame Clear opening of size 600 x 600mm of class C-250 (Heavy Duty 25MT) - completing the finishing work etc., cost per each number. Using Hand Bore Set drilling of bore hole of 300mm dia upto 4.35m depth including shifting of the hand bore from one place to another place within 5 km and filling in with 40mm HBG metal with 200mmdia pvc pipe 6kg/cm2

Construction of cast -in- situ Silt Catch Pit of inner size 450 X 450 X 450 mm including necessary earth work excavation including providing foundation in PCC 1:5:10 under wall 150mm thick and cutting he existing storm water drain of size 300 x 150mm for fixing 2 Nos of 160mm dia PVC pipe on the storm water drain mouth with RCC cast in situ wall of size 120mm in RCC 1:1.5:3 with steel of 9.25 kg ncluding fixing Ductile Iron grating hinged with frame clear opening 450 x 450mm -25 MT -completing the finishing work etc.

Refilling with excavated earth in regular layers of 15cm thickeach including carefully ramming watering consolidating etc. complete for foundation and basement.

Carting away the surplus earth/debris to a lead of 12km.including Loading, unloading and dumping in the Corporation Land as directed during execution

Supplying of 160mm dia PVC pipe with ISI Monogram (working pressure 6kg/cm2)

Supplying & Jointing 20mm dia PVC pipe, including cutting threading and jointing with necessary specials fixing to wall with clamps and screws including making holes in the wall or drilling holes in roof and making good the wall or roof after fixing with necessary scaffolding etc. complete..

Providing Iron Barricading of size 2m width and 1 m height with 40mm dia MS Tubular pipe for vertical supports on both sides and three lines of barricading with 25mm size MS tubular pipe and 2 x 1m M.S. Sheet with name board of size 0.60 x 0.45 m size M.S.sheet (20 gauge) including Cutting, Welding, fabrication charges and one coat of primer and 2 coats of enamel paint of approved quality with fixing of indication with reflecting stickers and necessary interlocking arrangements with adjoining units and placing the barricading units as directed at the site for a period of 28 days. The M.S. Sheet barricading is a temproray barricading and can be removed and reused after the completion of work in a particular stretch.

Hire charges for Dewatering - Diesel Pumpset above 3HP to 7.5 HP with fuel and crew charges including transportation

Towards the hire charges for providing temporary approach platforms to the residences near execution site including the cost of fabrication,placing properly across the drains ,removing the same after the work is complete etc as directed by the Project Manager or his representative. The approach platform will be made of 2.40mx1.20m - 6mm MS sheet fabricated with 75mmx40mm MS Channel-2.0m at bottom on all sides of sheets length wise and 50mmx6mm MS flats of 0.70m length at 500 mm centre to centre in tranverse direction including fixing MS flat drilled on corners of channel suitable for joining the next sheet with bolts and nuts including cost of materials,fabrication charges etc complete

Dismantling RCC Slab(reinforcement is being corroded) from Strom Water Drain - Steel is declared unfit for reuse

Dismantling the existing brick or stone masonry work in cement mortar under 3m high including carefully clearing the debris etc.,complete.

Desilting of Storm Water Drain

Providing as Built Drawing in Auto Cad format and GIS format

Supply and laying of RCC NP4 pipes 900 mm dia

Brick work in second class bricks (9"x4 3/8" x 2 3/4") in C.M.1:4 ( 1 cement and 4 M-sand) including curing,etc., complete for 23cm thick walls

Plastering with cement mortar 1:4 (1cement and 4 p-sand)12mm thick including curing, etc., complete.

Topographic survey of 10% of length for verification and confirmation of levels and alignment using total station survey

Providing laying, Spreading and compacting Graded Stone aggregate to Wet Mix macadam specification including premixing the material (0.396 Cu.m of 45 22.4mm Metal, 0.528 Cu.m of 22.4 2.36mm Metal, 0.396 Cu.m of 2.36 mm Size and below) with water at OMC in Mechanical Mix Plant Carriage and transporting the mixed material by tipper to site, laying in uniform layers with pavers in sub base or base course on well prepared surface and compacting with vibratory roller to achieve the desired density, Complete as per clause 406 of MoRT and H Specifications. (COMPACTION BY VIBRO MAX ROLLER IS A MUST)

Supplying and placing of Ready Mix M15 graded of concrete confirming to IS-456/2000 for reinforcement Cement Concrete structural elements under controlled water cement ratio using 20mm and downgraded machin broken granite stone jelly including transportation pumping and vibration charges excluding cost of centering and shuttering and reinforcement including curing, finishing etc., as directed by the Project Manager or his representative.

Supplying and placing of Ready Mix M30 Graded of Concrete confirming to IS 456/2000 for Reinforcement Cement Concrete Structural elements under controlled water cement ratio using 20mm and down graded machine broken granite stone jelly including transportation and pumping excluding cost of centering and shuttering and reinforcement but including curing, finishing etc as directed by the Project Manager or his representative.

Supplying and Fixing Pre moulded bituminous expansion pad 25mm thick including cutting to proper shape, cost and conveyance, fixing in position in where suitable opening have to be cutout on the pad so as to seat in position and all other charges etc., complete wherever necessary

Providing weep holes for retaining walls using with 50mm dia PVC pipe (PVC Finolex or Equivalent with ISI Monogram with working pressure of 4Kg/Cm2) including cost of materials and all labour charges for fixing in concrete as per the instructions of the Project Manager or his representative etc complete

Providing Chain link fencing ( 2" x 2") using 10 guage PVC coated Galvanised Iron wire mesh to a height of 1.60m from wall top level and fixed to the ISA 40 x 40 x 6mm thick. Spaced at 2.00m C/C including 0.45m inside retaining wall including horizontal and diagonal flats of size 25 mm width x 6mm (Double Flats) welded to angles, rate including welding,fixing, painting etc., complete.

Shoring and Strutting arrangements 2.50m to 4.25m height

Bill 2: Environment Management Plan

Ambient Air Quality -Monitoring - For parameters - PM-2.5 & PM-10,So2,NO2,CO

Ambient Noise Quality Monitoring - To identify sources of noise ,Noise due to traffic/transportation of vehicles ,Noise due to heavy equipment operations,Duration and variations in noise over time etc the equivalent noise levels shall be monitored.

Surface Water Quality - pH,Turbidity,Total Hardness

Ground Water Quality - pH,Turbidity,Total Hardness

Soil Quality - pH,Elect Conductivity (at 250C),Moisture (at 1050 C)

Sprinkling of Water for Dust Suppression during excavation

Providing of Rain Water Harvesting strcuture using precast well ring size 1200 (inner dia) x 4500mm (Height) (300mm x 15Nos) x 80mm (thick) using 1:1.5:3 concrete necessary earth work excavation providing PCC 1:5:10 and RCC cover slab of 1680mm dia 180mm thick . Providing bore hole of size 300mm dia using hand bore set upto 8.50m depth including shifting of the hand bore from one place to another plac with in 5km, erecting 200mm dia slotted PVC pipe (6kg/cm2) with cowl, filling with 20mm HBG metal out side peripheral of the pipe including cost, conveyance, cleaning the site and finishing etc., complete.

Bill 3: provisional lump sum amount for shifting charges of utilities and tree plantation - bidder need not quote for this item of work.

Sree Saravana Engineering Pvt Ltd