Re-construction of collapsed retaining wall in Alto - St. Cruz of Village panchayat St.Cruz of St.Cruz constituency in Tiswadi Taluka.

Earthwork 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 sq.m on plan) including disposal of excavated earth lead upto 50 m and lift upto 1.5m disposed earth to be leveled and neatly dressed including providing barricading, danger lighting guarding as directed in : a)All kinds of soil

Rubble packing with hard laterite stone under floors including watering ramming and consolidating etc. in pipeline trenches and other foundations complete.

Providing & laying cement concrete 1:2:4 (1 cement: 2 coarse sand: 4 graded granitic or basaltic stone aggrt. 20 mm. nominal size) excluding cost of centering, shuttering and finishing in: a) All works upto plinth level

Providing and fixing weepholes with rigid PVC make laid in position with a required slope and level while layingpipes of approved the concrete of retaining wall,wing wall and earth retainig structure complete as directed by the Engineer in charge A) 110 mm dia

Providing and laying of Filter media with granular materials/stone crushed aggregates satisfying the requirements laid down in clause 2504.2.2. of MoRTH specifications to a thickness of not less than 600 mm with smaller size towards the soil and bigger size towards the wall and provided over the entire surface behind abutment, wing wall and return wall to the full height compacted to a firm condition complete as per drawing and technical specification.

Transportation and carriage of materials (A) By tipper truck including loading, unloading and stacking upto 5km Lime,building rubbish, manure sludge, moorum excavated rock ( ii ) Earth

Supplying and fixing of Precast RCC slabs(factory made,the factory should be ISO certified and registered under Dirctorate of Industries, Govt. of India) at site in concrete Grade of M-25 with 20 mm nominal size Granitic or basaltic aggregate, consolidated by means of mechanical platform, vibration etc. with lifting hooks of M.s. 10mm bars and PVC cups including cost of reincforcement, Certificate from manufacturer shall be produced indicating grade of concret and minimum content of steel in the product along with 5 year free replacement warranty in case of breakage complete and as directed by Engineer -in -charge. a) Size 900 x 400 x 150 mm with steel reinforcement not less than 7 kg per unit -30 T capacity. To be procured through GHRSSIDC and the payment shall be released on submission of invoice.

Metal Beam Crash Barrier B) Type - B, Providing and erecting a "Thrie" metal beam crash barrier \providing and erecting "Thrie Beam " Crash barrier comprising of following three factory made unites-viz. 1) Thrie Beam 2) Spacer Block 3) Vertical Post. The Thrie beam 3mm thick cold roll formed guard rail raw material Conforming to IS-5986-2011 with minimum Grade 255 & with minimum yield stress of 255 Mpa which is fixed by bolted connection to spacer block C-channel of size 150mm* 75mm & 5mm thick, 54.6cm height spaced 2meter centre to centre, fixed to Vertical Post C-channel of size 150mm*75mm&5mm thick cold roll formed section made from HR coils raw material conforming to IS-5986-2011 with minimum Grade 255 & with minimum yield stress of 255MPa, with 85cms free height above road or Ground level, and embedded to 115cms deep in cement concrete block of size 35cm*35*115cm or as directed by Engineer Incharge, assembled & fixed as per drawings of MORTH&H Circular No.RW/NH/33022/1/94-DO/III, dated 24/6/1994 & construction operation as per 811 or revevant MORT&H specifications for Roads & Bridge Works (latest edition). All fittings (bolts, nuts, fasteners, washers etc.) shall be conforming to IS:1367 & IS:1364 & galvanished by hot dip zinc coated process @0.55kg/m2 conforming to relevent IS specifications all etc. complete

Centering and shuttering including struttings, propping etc. and removal of formwork for : (a) Foundations, footings, bases for columns and mass concrete.

Centering and shuttering including struttings, propping etc. and removal of formwork for : (b)vertical surfaces such as retaining walls , return walls, walls (any thk) including attached pilasters, buttresses, plinth and string courses, fillets, etc.

Supplying and filling in plinth under floors, trenches including watering ramming consolidating, dressing, complete. (b) moorum

Extra for planking and strutting in open planks as required to be left permanently in position(face area to be left permanently to be measured)

Providing and laying in position ready mixed concrete (RMC) with usage of Ordinary Portland Cement manufactured in fully automatic batching plant and transported to site of work in transit mixer for a lead upto 10kms having continuous agitated mixer, manufactured as per mix design of specified grade for reinforced cement concrete work including pumping of R.M.C., from the transit mixer to the site of laying, excluding the cost of centering, shuttering, finishing and reinforcement including the cost of admixtures in recommended porportions as per IS : 9103 to accelerate/retard setting of concrete, improve workability without imparing strength and durability as per the directions of the engineer-in-charge. All works upto floor V level.M-20 grade of concrete

Stone pitching of 22.5 cms thick using laterite stone of approved quality in cement mortar 1:5( 1 cement : 5 coarse sand) including supplying of stone and preparing surface etc. complete.

Extra to be added for additional height in centering, shuttering where ever required with adequate bracing, propping etc. including cost of de- shuttering and de-centering at all levels, over a height of 3.5m, for every additional height of 1m or part thereof. (Plan area to be measured) Suspended floors, roofs, landings, beams and balconies (plan area to be measured)

1% cess on NH Item no. 5 & 8