CA NO GE(U)/CHM-05/2025-26 SPECIAL REPAIR FOR AUGMENTATION OF WATER DISTRIBUTION FOR ENGINEER REGT ACROSS KALKA ROAD UNDER GE (U) CHANDIMANDIR

Amount

Excavating in trenches, not exceeding 1.5m wide and not exceeding 1.5m in depth, for foundations etc or manholes, cesspits, pipes and cables etc. not exc 10 Sqm on plan and getting out in any type of soil all as specified and directed by Engineer - in - Charge.

All as per Srl item No. 01 here in before but exceeding 1.5m and not exceeding 3m in depth all as specified and directed by Engineer - in – Charge.

Returning, filling in, including spreading, levelling, watering and well ramming in layers of soft / loose soil not exceeding 25cm thick all as specified and directed by Engineer - in - Charge.

Removing excavated material exc. 1.50 km but n exc. 5.0 km and depositing where directed at a level not exceeding 1.5m above the starting point all as specified and directed by Engineer - in - Charge.

Taking up CI/ DI/ GI pipe (including all fittings) with spigot and socket ends 100 mm bore laid in trenches complete all as specified and directed by Engineer - in - Charge.

Taking up CI/ DI/ GI pipe (including all fittings) with spigot and socket ends 150 mm bore laid in trenches complete all as specified and directed by Engineer - in - Charge.

Refixing old ductile iron pipe and connections in new or old position in trenches 100mm bore all as specified and directed by Engineer - in - Charge. (Old serviceable pipe retrieved from taking down shall be used for refixing)

Refixing old ductile iron pipe and connections in new or old position in trenches 150mm bore all as specified and directed by Engineer - in - Charge. (Old serviceable pipe retrieved from taking down shall be used for refixing)

Supplying, laying, jointing, commissioning and testing of ductile iron pressure pipe with socket & spigot ends having ISI marking confirming to IS:8329/2000 in standard lengths of classification K-7 suitable for and including push on rubber tyton (gasket D-jointing) with cement mortar lining in the pipes having 100 mm bore, including aligning the pipes inside trench as per IS:12288/1987 and testing the joints with required water pressure complete all as specified & directed.

Supplying, laying, jointing, commissioning and testing of ductile iron pressure pipe with socket & spigot ends having ISI marking confirming to IS:8329/2000 in standard lengths of classification K-7 suitable for and including push on rubber tyton (gasket D-jointing) with cement mortar lining in the pipes having 150 mm bore, including aligning the pipes inside trench as per IS:12288/1987 and testing the joints with required water pressure complete all as specified & directed.

S & F ductile iron pipe fittings such as bends, tapers, tee pieces single branch, "Y" junction, collars, caps and plugs etc spigot socketed or flanged ends type of size up to 150mm nominal bore conforming to IS-9520/2000 with pressure rating PN-1 (all the fittings shall be coated for rust prevention i.e. external coating zinc rich paint with finishing layer of bituminous as per Annexure - A of IS:9523/2000 and internal lining shall be of cement mortar with seal coat as per Annexure 'B' of IS-9523/2000) complete all as specified and directed by Engineer - in - Charge.

Cutting to existing CI/DI pipe line of size 150mm bore required for repair/replacement of pipe line and insertion of collars/tail pieces, tee etc including dewatering of pit if any complete all as specified and directed. Note : Excavation and earth work if any shall be measured and paid for separately.

Rubber gasket joint suitable for 100mm bore spigot and socketed pipes and fittings complete all as specified and as directed by Engineer-in-Charge.

Rubber gasket joint suitable for 150mm bore spigot and socketed pipes and fittings complete all as specified and as directed by Engineer-in-Charge.

S&F Cast iron non return valve with flanged ends of size 200 mm dia class PN 1.6 complete incl all jointing materials such as nuts, bolts, washers, rubber gaskets etc all as specified and directed.

S&F Cast iron non return valve with flanged ends of size 150 mm dia class PN 1.6 complete incl all jointing materials such as nuts, bolts, washers, rubber gaskets etc all as specified and directed.

Supplying and fixing ductile iron sluice valve flanged type rating PN 1.6 size 100mm bore conforming to IS-14846 with wheel, necessary gasket, nuts, bolts and washers etc. and jointing including testing for leakage complete all as specified and directed by Engineer – in – Charge.

Supplying and fixing ductile iron sluice valve flanged type rating PN 1.6 size 150mm bore conforming to IS-14846 with wheel, necessary gasket, nuts, bolts and washers etc. and jointing including testing for leakage complete all as specified and directed by Engineer – in – Charge.

Construction of brick masonry valve pit/ chamber inside dimensions 90cm x 90cm x 90cm deep from the top of surface including cover of MS sheet 4.00mm thick and angle iron 25mm x 25mm x 6mm with hinges and locking arrangement including painting with two coats of synthetic enamelled paint over a coat of red oxide and grouting to PCC 1:2:4 type B-1, and brick work in CM 1:4, 15mm thick plastering in cement mortar 1:4, foundation concrete 1:4:8 all as per existing pattern and as specified and directed by Engineer - in – Charge. (Earth work shall be measured and paid for separately)

Taking down steel tubing 50mm bore and connections including cleaning for refixing/ removal complete all as specified and directed by Engineer - in – Charge.

Taking down steel tubing 40mm bore and connections including cleaning for refixing/ removal complete all as specified and directed by Engineer - in – Charge.

Taking down steel tubing 25mm bore and connections including cleaning for refixing/ removal complete all as specified and directed by Engineer - in – Charge.

Taking down steel tubing 20mm bore and connections including cleaning for refixing/ removal complete all as specified and directed by Engineer - in – Charge.

Refixing old steel tubing and connections in new or old position (walls, ceiling, floors, etc.) 50mm bore all as specified and directed by Engineer - in - Charge. (Old serviceable pipe retrieved from taking down shall be used for refixing)

Refixing old steel tubing and connections in new or old position (walls, ceiling, floors, etc.) 40mm bore all as specified and directed by Engineer - in - Charge. (Old serviceable pipe retrieved from taking down shall be used for refixing)

Refixing old steel tubing and connections in new or old position (walls, ceiling, floors, etc.) 25mm bore all as specified and directed by Engineer - in - Charge. (Old serviceable pipe retrieved from taking down shall be used for refixing)

Refixing old steel tubing and connections in new or old position (walls, ceiling, floors, etc.) 20mm bore all as specified and directed by Engineer - in - Charge. (Old serviceable pipe retrieved from taking down shall be used for refixing)

S & F 50mm bore light grade steel tubes galvanized with all fittings laid in trenches/wall/ceiling/floor all as specified and directed by Engineer - in - Charge .

S & F 40mm bore light grade steel tubes galvanized with all fittings laid in trenches/wall/ceiling/floor all as specified and directed by Engineer - in - Charge .

S & F 25mm bore light grade steel tubes galvanized with all fittings laid in trenches/wall/ceiling/floor all as specified and directed by Engineer - in - Charge .

S & F 20mm bore light grade steel tubes galvanized with all fittings laid in trenches/wall/ceiling/floor all as specified and directed by Engineer - in - Charge .

S & F as in repairs gunmetal globe or gate valve with iron wheel head, screwed both ends for iron pipes 50mm bore as in repairs complete all as specified and directed by Engineer – in – Charge.

S & F as in repairs gunmetal globe or gate valve with iron wheel head, screwed both ends for iron pipes 40mm bore as in repairs complete all as specified and directed by Engineer – in – Charge.

S & F as in repairs gunmetal globe or gate valve with iron wheel head, screwed both ends for iron pipes 25mm bore as in repairs complete all as specified and directed by Engineer – in – Charge.

S & F as in repairs gunmetal globe or gate valve with iron wheel head, screwed both ends for iron pipes 20mm bore as in repairs complete all as specified and directed by Engineer – in – Charge.

Demolition brickwork or stone/ boulder masonry, built in cement mortar including all quoins, arches, pillars, etc, but excluding ashlar facings, dressed stonework and precast concrete articles including removing of debris from the site complete all as specified.

M & L brick work with sub class ‘B’ old size burnt bricks straight or curved on plan exceeding 6.0m mean radius built in cement mortar 1:4 all as specified and directed by Engineer – in – Charge.

Demolition of cement concrete (un-reinforced) in floors / pavings, (below or above ground level) and of any description and in any position not otherwise specifically provided for all as specified and directed by Engineer - in - Charge .

M & L cement concrete (1:2:4) type B-1 using 20mm graded stone aggregate as in lintels up to 1.5 m clear span, seismic and other similar bands, benching, coping, bed blocks, apex stones and kerbs etc including use of necessary form work all as specified and directed by Engineer - in - Charge .

M & L 15mm thick rendering in Cement Mortar 1:4 on fair faces of brick work or concrete surfaces finished even and smooth without using extra cement complete all as specified and directed by Engineer - in - Charge .

Demolition of Reinforced cement concrete (reinforcement cut as required to facilitate demolition) in floors / pavings, (below or above ground level) and of any description and in any position not otherwise specifically provided for all as specified and directed by Engineer - in - Charge .

S & F framed brackets of angles or tees with web and flanges cut to shape, drilled and countersunk for screw, including bending and welding angles, as necessary, gusset plates, riveting, etc n.exc 10 kg each brackets confirming to Fe-290, Gde-E-165 complete all as specified and as directed by Engineer in Charge.

Supply and fixing vertically/ horizontally on wall/ laid in trenches 200mm bore MS ERW pipe, medium grade, as per IS-1239 (Part-I) and IS marked, joints welded, complete all as specified and directed. Note: (i) Excavation and earthwork shall be measured & paid separately. (ii) Fittings, flanges & joints shall be measured and paid separately.

Note for item No 05 to 10: Most of existing pipe line is under hard standing, park, sheds and lawns. Hence same pipe lines cannot be removed and be used as redundant water supply in case of breakdown in proposed line.

R D Bansal (BID ID -3316534)