Providing and installation of crash barriers for length of 0.300Km along MDR-7 in Mapusa Constituency

Earthwork in excavation of foundation of structures of culverts,abntments piers, retaining walls etc. in all types of Strata comprising of any of the materials such as soil, silt, sand, clay, gravel, murrum of all varieties, shingles, pebbles, all types of conglomerates, laterite rock etc soft rock, ordinary rock or disintegrated rock, fissured shattered /decomposed rock or weathered rock all such other materials as described under Appendix 'A' to these specifications either in full or in parts as the case may be adopting mechanical means (hydraulic excavator) or any approved method or methods as the case may be convenient or permitted inclusive of blasting, chiseling and wedging etc. in all conditions such as dry, moist,saturated, submerged, foul condition etc. and as directed by the Engineer-in-charge all complete including dressing of sides ramming of bottom including all leads and lifts including getting out the excavated soil as directed barricading danger lighting guarding and the departmental officers as per drawing and technical specification, including setting out construction of shoring and bracing removal of stumps and other deleterious matte, dressing of sides and bottom, back filling the excavation earth to the extent required and utilising the remaining earth locally for road work upto 3.00 m depth as per MORTH Specification 304 EXCLUDING DEWATERING. Ordinary Soil Meachanical Means.

Earthwork in excavation of foundation of structures of culverts,abntments piers, retaining walls etc. in all types of Strata comprising of any of the materials such as soil, silt, sand, clay, gravel, murrum of all varieties, shingles, pebbles, all types of conglomerates, laterite rock etc soft rock, ordinary rock or disintegrated rock, fissured shattered /decomposed rock or weathered rock all such other materials as described under Appendix 'A' to these specifications either in full or in parts as the case may be adopting mechanical means (hydraulic excavator) or any approved method or methods as the case may be convenient or permitted inclusive of blasting, chiseling and wedging etc. in all conditions such as dry, moist,saturated, submerged, foul condition etc. and as directed by the Engineer-in-charge all complete including dressing of sides ramming of bottom including all leads and lifts including getting out the excavated soil as directed barricading danger lighting guarding and the departmental officers as per drawing and technical specification, including setting out construction of shoring and bracing removal of stumps and other deleterious matte, dressing of sides and bottom, back filling the excavation earth to the extent required and utilising the remaining earth locally for road work upto 3.00 m depth as per MORTH Specification 304 EXCLUDING DEWATERING. Ordinary Soil Meachanical Means.

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

Providing and laying in position cement concrete 1:2:4 (1 cement : 2 coarse sand: 4 graded granitic or basaltic stone aggregate 40 mm nominal size) excluding cost of centering, shuttering and finishing :a)All works upto plinth level .

Providing and erecting a "Thrie"" metal 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 75mmx150mm & 5mm thick 54.6cm height spaced 2meter centre to centre fixed to Vertical Post C-channel of size 75mmx150mm &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 of minimum grade M15 (1:2: 4) 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 relevant MORT&H specifications for Roads & Bridge Works (latest edition). All fittings (bolts nutsfastenerswa shers 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"