Drainage Works Tenders

Conducting detailed topographical and drainage surveys for preparation of Drainage Master Plan including generation of 0.25 m interval contours using grid levels at 15 m × 15 m spacing, mapping of natural drainage channels, water bodies and permanent campus features such as roads, buildings, monuments and campus boundary, survey of existing sewerage and storm water drainage levels, establishment of permanent benchmarks, recording of ground levels up to 100 m outside the campus boundary to assess external drainage conditions for scientific long-term stormwater management planning, including submission of field data in Excel format and drawings in AutoCAD and suitable formats such as KML, as per the directions of Engineer-in-Charge.

[21.106.22]Supplying, erection, testing and commissioning of submersible motor pumping set non clog for sewerage having head 15.00 m as per the indicated requirements of discharge in LPM and power capacity in BHP as per IS marked including all accessories (like SS Pipes, SS Chain (Shackle Chain) ,SS Foundation Bolt, complete base frame, Monorail, Chain Guide Line, Auto Compiling, Duct Foot Bend (D/F Bend) etc. complete in all respect 22. Discharge Capacity (LPM) - 1300 Power Capacity (BHP) - 7.5

Providing, fixing of Plastic HDPE Circular Inspection Chamber made from 100% virgin UV Stabilized special roto moulding grade Polyethylene (PE) material having internal diameter of 600mm, shall provide access for cleaning and inspection, to be used in buried sewers for gravity system. Chamber shall be made as per EN 13598-1 for use in non- pressure underground sewerage system. It shall be used for receiving / connecting solid wall plain surface (HDPE) or structured wall corrugated DWC) pipes etc. by use of appropriate transition adaptors; and/or for changing the direction of drainage / sewerage runs. Chamber shall have a base and riser shaft of internal diameter 600mm. Chambers shall be provided with arrangement for 4 nos. connections at the base and shall be designed to receive / connect various diameter pipes. Chamber shaft also shall be designed to receive / connect anywhere at the shaft level. Chamber base / shaft shall receive maximum of pipe having OD of 315mm. Chamber shall have integrated base benching. The riser shaft outside shall be reinforced with horizontal and vertical ribs of minimum 20mm thick and a projection of 40mm to enhance the products resistance to compression and anchoring in the soil. These ribs shall provide lift-retention system in case of ground water. Chamber shall be placed on PCC M-10 grade (1:4:8) 150mm thick, 800mm dia foundation, etc. complete with curing, compaction and form work, supplying and fixing heavy duty SFRC manhole cover as per IS 12592 (Part I and II) complete in all respect including testing for water tightness (including the cost of RCC load distribution ring and SFRC manhole frame and cover) as per specification and the direction of the Engineer. {Note: Excavation of earth work, road cutting and non-cohesive backfilling material (quarry dust / rock sand, etc., depending on native soil condition)}, compaction, etc. for manhole will be measured).