Water Resources Department Tender

Formation of filter layer of the River training walls & Groynes with H.G. quarry stones of various grade with weight of 1 kg to 50 kg having specific gravity not less than 2.65 loaded & transported from the approved quarry and/or from the stacking area to the groynes/ River training wall Location and Unloading or Dumping at Onshore or Offshore as per the design and Drawing. The rock quality requirements & Rock grading classes shall be in accordance with CIRIA C683 (2007) and IS 13030 – 1991. (The Rock used in the filter layer shall not contain more than 50% by weight of stone with a length to thickness (L/d) ratio greater than 2. Not more than 5% of the rocks shall have a length to thickness (L/d) ratio greater than 3, where the length, L, is defined as the greatest distance between two points on the stone and the thickness, d, as the minimum distance between two enclosing parallel planes through which the stone can just pass.) The specified grades of stones shall be placed to lines and levels as indicated on the approved Construction Drawings with a provision of necessary allowance for the settlement of the groynes due to consolidation effects, including cost of all materials, conveyance, royalty, loading and unloading using crane and floating equipments like boats, barges etc. of adequate capacity, cess, T&P, taxes, but excluding GST, including cost of all materials construction & maintenance of hauling road. complete as per direction of the Engineer-in-charge. (Payment will be made on volume basis by Weighing in the Electronic Weigh Bridge to be installed by the agency in his own cost and converting the weight into volume by taking specific gravity of the Quarry rock into consideration. The work should conform to the theoretical profile of the River training walls & Groynes as per design & drawing)

Providing, laying, spreading and compacting stone aggregate of specific size (Gr-III) to water bound macadam specification including spreading in uniform thickness, hand packing, rolling with 8-10tones PRR to proper grade & camber, applying & brooming requisite type of screening/binding with moorum to fillup the interstices of coarse aggregate, watering & compacting to the required density as per cluse-404 of MoSRT & H specification for road & bridge work (4th revision),including material, labour, conveyance, royality etc.,excluding GST. Complete as per the direction of Engineer-In-Charge.

Formation of Armour layer and toe layer of the River training walls & Groynes with H.G. querry stones of various grade with weight of 1 MT to 3MT having specific gravity not less than 2.65 loaded & transpoted from the approved quarry and/or from the stacking area to the groynes/ River training wall Location and Unloading or Dumping at Onshore or Offshore as per the design and Drawing.The rock with weight over 1 MT shall not be mass dumped, but placed individually or alternatively by use of skip or cactus grab. The armour layers shall follow as close as possible to the placement of under layer to avoid the damage to the under layer material. The armour units shall be placed in such a manner that the required degree of inter locking, the required packing density and the required void ratio shall be achieved. The rock quality requirements & Rock grading classes shall be in accordance with CIRIA C683 (2007) and IS 13030 – 1991. (The Rock used in the armour layer shall not contain more than 50% by weight of stone with a length to thickness (L/d) ratio greater than 2. Not more than 5% of the rocks shall have a length to thickness (L/d) ratio greater than 3, where the length, L, is defined as the greatest distance between two points on the stone and the thickness, d, as the minimum distance between two enclosing parallel planes through which the stone can just pass.) The specified grades of stones shall be placed to lines and levels as indicated on the approved Construction Drawings with a provision of necessary allowance for the settlement of the groynes due to consolidation effects, including cost of all materials, conveyance, royalty, loading and unloading using crane and floating equipments like boats, barges etc. of adequate capacity, cess, T&P, taxes but excluiding GST,including cost of all materials construction & maintenance of hauling road. Complete as per direction of the Engineer-in-charge. ( Payment will be made on volume basis by Weighing in the Electronic Weigh Bridge to be installed by the agency in his own cost and converting into volume by taking specific gravity of the Quarry rock into consideration, the work should confirm to the theoretical profile of the River training walls & Groynes as per design & drawing). a) For Toe Portion