Construction Improvement o Circular road in Shimla Town (SH Construction of Retaining wall at RD. 151/700 to 151/790)(Under Shimla Smart City)

Amount

Excavation in soil in Hilly Area by manual means including cutting and trimming of side slopes and disposing of excavated earth with in all leads & lifts as per drawing and Technical Specification Clause 1603.1 including carriage carriage of materials in all leads and lifts as per directions of the Engineer-in-Charge.

Earth work in excavation for structure in all depths as per drawing and technical specification for rural roads August 2004 clause 305.1 including setting out, construction of shoring abd bracing, removal of stumps and other deleterious materials and disposal in all leads and lift including dressing of sides and bottom and back filling in trenches with excavated suitable materials. All work of rock cutting by blasting shall be carried out by taking all necessary precautions against soil erosion damage to hill side water pollution etc. and to protect stability of hill side rock shall be excavated with chiseling and wedging out rock (where balsting is prohibited) all earth work in cutting/ excavation including rock excavation shall be carried out true to lines grades, side slopes, width , camber super elevation and level as shown on the drawings or as directed by the Engineer-in-charge hauling and stacking of materials useful for construction at suitable sites and safe disposal of unsuitable cut materials in specified dimension or as directed by the Engineer-in-Charge. If the foundation of the structure is in an area with stagnant water or water is met with in the excavation due to spring seepage rain and other causes it shall be remove by suitable diversion bailing out or pumping as directed and the area of the foundation or embankment shall be kept dry. All the surplus excavated earth to be dumped at dumping site(dumping sites will be arranged by the contractor on his own cost).Any loss to the public or private property during the course of excavation shall be the sole responsibility of the contractor which shall have to be dully compensated by him at his on cost in all cases. including carriage of materials in all leads and lifts as per directions of the Engineer-in-Charge.

Providing and laying plain cement concrete 1:4:8(One cement: four sand :eight graded crushed stone aggregate 20mm(twenty miliemtre)nominal size) mechanically mixed and vibrated in open foundation complete as per drawing and MORD technical specification clauses 802,803,1202 & 1203 including carriage of materials in all leads and lifts as per directions of the Engineer-in-Charge.

Providing concrete for plain/reinforced concrete in open foundations complete as per drawings and technical specifications Clause 802, 803, 1202 & 1203 including carriage of materials in all leads and lifts as per directions of the Engineer-in-Charge. I. P.C.C. grade M 20 (i)Nominal mix (1:2:4)(One cement :two sand:four graded stone aggregate 20mm (Twenty milimetre)nominal size)

Providing concrete for plain/reinforced concrete in open foundations complete as per drawings and technical specifications Clause 802,803,1202 & 1203 including carriage of materials in all leads and lifts as per directions of the Engineer-in-Charge. I. P.C.C. grade M 10 (i) Nominal mix 1:3:6 (one cement :three sand:six graded)

Single sided single "W" Metal beam crash barrier comprishing of cold formed W profiled section having thickness of 3 mm (three milimetre)(uncoated thickness ) with frame width of 311 mm(three hundred eleven milimetre) depth 83 mm (eighty three milimetre)and length 4318 mm(four thousand three hundred eighteen milimetre)( made of ISI marked HR coil conforming to IS : 5986/2011 ) , to be fixed on cold formed channel section post of size 150x75x5 mm (One hundred fifty into seventy five into five milimetre)( Made from ISI marked Hr Coils conforming to IS 5986/2011 ) spaced 1.50 metre(one point five zero metre) centre to centre of the post which will be of total height of 1.80 metre(One point eight zero metre) with its height of 1.1 metre(One point one metre) below ground level and 0.70 metre(zero point seven zero metre) above ground level. Metal beam rail to be fixed on the vertical post with spacer channel of cold formed channel section size 150x75x5 mm and 330 mm(One hundred fifty into seventy five into five milimetre) and (three hundred thirty milimetre) long (made from ISI Marked HR coils conforming to IS : 5986/2011 ) , All the above components shall - conform to clause 810 of MORTH &H specifications including all fittings required for erection on road side W-Beams, Posts , Spacers shall not be hot dip galvanised with Zinc coating of 550 gm/Sqm(five hundred fifty gramt/swquare metre). All bolts , nuts and washers shall be hot dip galvanised to IS :1367 pt-XIII/1983 ( Reaffirmed 2011 ) for bolts and IS 14394/1996 ( reaffirmed 2011 ) for nuts including high intesity grade all weather proof reflective sheeting multi colour tape fixed with mechenically means with high visibility (CAUTIONARY) from long distance i.e. in fog porn area black spot and narrow curves etc. including carriage of materials in all leads and lifts as per the direction of Engineer-in- charge.

Backfilling behind abutment, wing wall and return wall complete as per drawings & technical specification Clause 1204.3.8 including carriage of materials in all leads and lifts as per directions of the Engineer-in-Charge. (i)Granular material

Providing weepholes in brick masonry / stone masonry /plain reinforced concrete abutment, wing wall, return wall with 100 mm(one hundred milimetre) dia PVC pipe extending through the full with of the structures with slop of 1(v):20(H) towards drawing face complete as per drawing and technical specification clauses 614, 709, 1204.3.7 including carriage of materials in all leads and lifts as per directions of the Engineer-in-Charge.

Er. Ankush Dewan

Ashok Thapa