Water Resources Department Tender

Desilting by dredging from river/ nallah for depths varying from 1.00 m to 3.00 m including fixing of pipe lines, floaters and floating pipelines and disposing of water slurry consisting of silt, clay and sand etc upto a distance of 1500m. The rate shall include the cost of above materials, consumables, POL, spare parts and accessories required to keep anchor in running condition, maintenance of dredgers T&P etc. including building in be clouding by providing geo tubes and accessories or by lin sheets for formation of and for dumping of dredged material with all lead and lift including all taxes & excluding GST etc. as per the direction of the Engineering-in-charge. The job includes all pre and post dredging surveys for payment purpose. (The area of disposal of dredged materials should be arranged by the agency at his own cost, own risk and responsibility, Govt. land is taken into first priority). a) Confluence of river and sea at Markandi

b) At Upstream of river mouth at Markandi

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)