Flood damage repairs for the Year 2023-24 Permanent restoration to Flood Damage Repairs by Construction of breast wall at Km 74/4 (i), Km 74/4 (ii) Construction of culvert with retaining wall at Km 66/10 of NH-181 (Coimbatore - Mettupalayam Oot

Amount

Dismantling PCC in cement mortar, clearing away and carefully stacking materials useful for reuse for any thickness of walls etc, complete

Removing all types of Hume pipes and stacking within a lead of 1000 metres including earthwork and dismantling of masonry works More than 900mm dia

Earthwork excavation in all classes of soil except soft rock not requiring blasting and hard rock requiring blasting and depositing on bank with all leads and lifts, including cost of all labour, equipments and all incidental charges such as baling our water, providing and maintaining necessary cofferdams, sheeting, shoring bracing and their subsequent removal, removal of all logs, stumps, grubs and other deleterious matter and obstructions, trimming bottom of excavation backfilling, and clearing the site and disposal of all surplus materials etc., complete as per relevant standard specification for foundation

Vibrated Cement concrete in M-15 using ISS HBG including cost and conveyance of all materials to site and cost of cement at site including soft water, labour charges for mixing, transporting, laying and curing concrete, tools and plants and incidental charges as baling out water, maintaining of protective bunds, cofferdams, shorting, strutting etc., complete as per relevant standard specification for foundation.

Vibrated Reinforced Cement concrete in M20 using ISS graded HBG metal including cost and conveyance of all materials to site and cost of cement at site including soft water, labour charges for form work, centering, mixing, transporting, laying and curing concrete, tools and plants and incidental charges excluding cost of steel etc., complete as per relevant standard specification for Base slab

Vibrated Reinforced Cement concrete in M20 using ISS graded HBG metal including cost and conveyance of all materials to site and cost of cement at site including soft water, labour charges for form work, centering, mixing, transporting, laying and curing concrete, tools and plants and incidental charges excluding cost of steel etc., complete as per relevant standard specification for Side wall & Deck slab

Supply and fabrication of Fe – 415 steel with high strength corrosion resistant rebar (TMT Her Grade M) required for all RCC items of works involved in the schedule cost of steel at site fabrication, labour charges for cleaning the rods straightening, cutting, bending, tying grills, including overlapping to the required length whenever necessary and placing the reinforcement in position as specified in the drawings, including cost of binding wire, provision of spacer bars, cover blocks and all other incidental charges etc. complete.

Providing and applying tack coat with bitumen emulsion using emulsion pressure distributor at the rate of 0.30 Kg/sqm on the Concrete surface cleaded with mechanical broom all complete as per Technical Specification MoRTH503

Filling behind Abutments and return wall with clean gritty gravel including cost and conveyance of gravel to worksite, laying, handling charges and filling in layers, tamping under optimum moisture content to get the maximum density including watering, with all leads for water and all other incidental charges etc., complete. as per CI.710.1.4 & Appendix 6 of IRC :78-2014

Providing and laying Bituminous concrete using CRMB with 100 - 120 THP hot mix plant producing an average output of 75 tonnes per hour using crushed aggregates of specified grading premixed with bituminous binder as specified by Job Mix Formula(JMF) by weight of total mix and filler, trnsporting the hot mix to site, laid over a previously prepared surface with a hydrostatic paver finisher with sensor control to the required grade, level and alignment and rolled with smooth wheeled, vibratory and tandom rollers to acheieve the desired compaction as per clause 507 of MORT & H specifications complete in all respects. - Grading I

Vibrated Cement Concrete of Grade M-20, Nominal Mix 1:1.5:3 using 40mm ISS HBG metal including cost and conveyance of all materials to site and cement at site including cost of form work, soft water,labour charges for mixing, transporting, laying and curing concrete, working at depths tools and plants and incidental charges such as maintaining of protective bunds, cofferdams, shoring, strutting etc; complete as per relevant standard specification for WING WALLS (Below Sill Level)

Vibrated cement concrete of grade M20 using ISS HBG metal including cost and conveyance of all materials to site including cost of cement at site including cost of form work, soft water, labour charges for mixing transporting, laying, and curing concrete, working at depths, tools and plants and maintaining of protective bunds, cofferdams, shoring, strutting, etc, complete as per relevent standard specifications for Wings walls, Toe walls, Curtain walls & parapet wall..

Providing and Laying Granular Sub Base as per table No.400 -1 / 400-2 and Grading I of MORTH Revision IV with and any other combination thereof for varying thickness to give a CBR of 30 on prepared sub grade in accordance with requirements of the specifications contained in Clause 401 of MORTH Rev IV mixing in place method of Grade I.

Providing ,laying,spreading and compacting graded stone aggregate to Wet Mix Macadam specification including premixing the material with water at OMC in mechanical mix plant carriage of mix material by tipper to site laying in uniform layers with paver in sub base course on well prepared surface and compacting with vibrating roller to achieve the desired density as per MORTH specification 406

Providing and applying of primer coat on the prepared surface of granular base using bitumen emulsion at the rate of 6 Kg/10 sq.m and spraying the bitumen emulsion with spray set over the WMM surface as per MORTH specification 502 preperatory to anotherconstruction over it.

Providing and applying of tack coat over prime coat surface using bitumen emulsion at the rate of 2.50 Kg/10 sq.m and spraying the bitumen emulsion with spray set over the WMM surface after applying primer coat as per MORTH specification 503 preperatory to anotherconstruction over it.

Dense Graded Bituminous Macadam 50-75mm (Table - 500-10) Providing and laying dense bituminous macadam with Hot Mix Plant using crushed aggregates of specified grading, premixed with bituminous binder (Viscosity Grade- 30) at percentage specified by Job Mix Formula by weight of total mix of mix and filler, transporting the hot mix to work site, laying with a hydrostatic paver finisher to the required grade, level and alignment, rolled as per clause 501.6 and 501.7 to achieve the desired compaction, as per clause No.505 of MoRTH specification Grading II

Providing and laying Bituminous concrete using CRMB with 100 - 120 THP hot mix plant producing an average output of 75 tonnes per hour using crushed aggregates of specified grading premixed with bituminous binder as specified by Job Mix Formula(JMF) by weight of total mix and filler, trnsporting the hot mix to site, laid over a previously prepared surface with a hydrostatic paver finisher with sensor control to the required grade, level and alignment and rolled with smooth wheeled, vibratory and tandom rollers to acheieve the desired compaction as per clause 507 of MORT & H specifications complete in all respects. - Grading II

Earthwork excavation in all classes of soils such as hard stiff clay, stiff black cotton, hard red earth, shales, murram, gravel stoney, earth etc., and depositing on bank with all leads and lifts and all other incidental charges complete as per standard specification for foundation for Retaining wall & Breast wall

Cement Concrete 1:2:4 mix using 40mm ISS size HBG metal including cost and conveyance of all materials to site including cost of cement at site including cost of formwork, soft water, labour charges for mixing, transporting, laying and curing concrete, working at depths, tools and plants and maintaining of protective bunds, cofferdams, shoring, strutting etc., complete as per relevant standard specifications

Providing and fixing seepage pipes of 100mm dia. AC pipes of required lengths for abutments and wngs including cost and conveyance of all materials to work site, cost and labour for 900mm dia. semi-spherical back fill arangements with 100mm size broken ganite chips at the periphery and labour charges for fixing, etc.,to drain of the backfill IN RETAINING WALLS

Refilling with available earth at site other than sand including cost and conveyance including labour charges for filling inlayers, watering tamping under opumum moisture content to get the maximum density all incidental charges etc., complete over pipes.

Providing fixing of Median marker double sided made of polycarbonate for impact resistance and good weather ability. Polycarbonate used for molding the median marker shall have a minimum Izod impact strength value of 600 J/m at room temperature. The impact strength of the poly carbonate should not decrease to less than 70% of its initial value on being subjected to UV weathering as per ASTM G 155 for 1000 hours or exposure to 2 years of natural weathering. The body of the median marker shall be in the form of an isosceles trapezoidal structure of length 15 cm height and width of 10 x 10 cm. The median marker shall have fluorescent yellow retro - reflective sheeting confirming to Tpe XI specifications as per ASTM D 4956.Area of reflective sheeting should not be less than 70 cm2 .Edge of retro reflective shall be concealed using a grill/ mesh/ similar mechanism to prevent vandalism and sheeting pilferage. The logo of the manufacturer shall be embossed and painted in contrasting colour on both side of median marker for distinct identification.

Supply of HYSD steel for Reinforcement for RCC work including bending, placing and binding etc., for surface Reinforcement. Retaining walls

kousic and co