capital wok- capacity enhancement of 110kv substation s l puram by installing one number of 110/11kv 12.5mva transformer - construction of cable trench, foundation for transformer and other equipments-preparation and consolidation of sub grade with power road roller of 8 to 12 tonne capacity/ hand roller after excavating earth to an average of 22.5 cm depth, dressing to camber and consolidating with plate vibrator including making good the undulation etc. and re rolling the sub grade and disposal of surplus earth with lead up to 50 metres. 2 providing, laying, spreading and compacting graded stone aggregate (size range 53 mm to 0.075 mm ) to wet mix macadam (wmm) specification including premixing the material with water at omc in for all leads & lifts, laying in uniform layers with mechanical paverfinisher in sub- base / base course on well prepared surface and compacting with vibratory roller of 8 to 10 tonne capacity to achievethe desired density, complete as per specifications and directions of engineer-in-charge. 3 providing and laying 80mm thick faciory made cement concrete interlocking paver block of m -30 grade made by block making machine with strong vibratory compaction, of approved size, design & shape, laid in required colour and pattern over and including 50mm thick compacted bed of coarse sand/6mm metal, filling the joints with line sand etc. all complete as per the direction of engineer-in-charge.