PROVISION OF SHORE PROTECTION WORK ALONGWITH RETAINING WALL TOWARDS SEASIDE AT MANGALORE

Demolition of stone/boulders masonry built in cement mortar including all quoins, arches, pillars etc but excluding ashlar facings, dressed stone work and precast concrete articles complete all as specified and directed.

Dismantling wrought iron or mild steel work of any description for fencing post etc, not otherwise provided for including Nainital or similar pattern roof covering complete all as specified and directed.

Demolition of reinforced cement concrete of any description and in any position not otherwise specifically provided for all as specified and directed.

M & L for excavation over areas not exceeding 1.5mtr depth in sub-marine sand and all kind of soil by mechanical means with poclain, hydraulic excavator, rock breaker etc. to the specified section as per the area and depth mentioned on the drawing

M & L for excavation over areas above 1.5mtr or part thereof in depth beyond 1.5mtr upto 4.5mtr in sub-marine sand and all kind of soil by mechanical means with poclain, hydraulic excavator, rock breaker etc. to the specified section as per the area and depth mentioned on the drawing. Note for Sl Item Nos 4 and 5 :- (i) Excavated sand to be used for item No. 24 (ii) Initial levels to be taken after completion of gravity wall but before commencement of protection work by BOO to be ordered by Accepting Officer as per planned schedule depending on season & tide.

M & L for 400 mm thick Soling (or sub base) with broken boulders or quarried stone, laid in two layers filled for foundation of gravity wall and , surface formed and rolled and consolidated to required shape and size all as specified and directed.

All as per item No 6 here-in-before but except material/Stone.

M & L for Laying 100 mm thick compacted thickness WBM with coarse aggregates of grading 1(90 to 40 mm size) , spread rolled and consolidated to gradient and camber required for sub base of gravity wall etc. complete all as specified

M&L RCC M-40 Design Mix (20 mm graded aggregated) in foundations of gravity wall , including rafts, footings, foundation beams; plinth beams; base for columns, etc basements slabs under ramed piles and mass concrete complete all as specified and directed.

M&L RCC M-40 (Design Mix) using (20 mm graded aggregated) gravity Walls, retaining walls, basement walls, ballast walls and the like; any thickness; above top of footings; including attached pilasters and buttresses concrete complete all as specified and directed.

M&L form work to sides of concrete foundations, footing for gravity wall , bases of columns, raft and raft beam, sides and soffits of foundation and plinth beam and similar work for rough finished surface all as specified and directed.

M & L form work to faces of gravity walls in vertical or batter surfaces, retaining walls, abutments, parapets and staircase railing and similar work for with fair finish surfaces all as specified and directed.

S&F for CRS/HCRM bars 10mm dia and over cut to length bend to shape required including cranking bending spirally for gravity wall with parapet wall over sea protection and hooping for columns, hooking ends and binding with including mild steel wire not less than 0.9mm dia or securing with clips complete all as specified and directed.

Returning filling in including spreading levelling watering and well ramming in layers not exceeding 25 CM complete all as specified

Removing excavated material not exceeding 50 m and depositing where directed at a level not exceeding 1.5m above the starting point complete all as specified

M&L for applying Two or more coats of 100% Premium acrylic emulsion paint having VOC less than 50 gm/litre and UV resistance as per IS 15489:2004, Alkali & fungal resistance, dirt resistance exterior paint of required shade (Company Depot tinted) with silicon additives @ 1.43 litre/ 10 sqm over and including priming coat of exterior primer applied @ 0.90 litre/ 10 sqm over new surfaces complete including preparation of new plastered surfaces complete all as specified.

M&L for Mild steel work conforming to Fe 290 grade-E as in angle iron posts with swan neck (horn) and struts in fencing including cutting tops to shape as directed drilling holes, notching for wire etc, necessary drilling, bolting or welding/riveting etc complete all as specified.

S & F Galvanised 2 strand, steel barbed wire 2.24mm dia barbed with 2mm dia barbs at 75mm spacings and straining and fixing to any type of standard rails straining bolts, including, securing or tying at crossings with and provision of galvanised mild steel wire, staples or steel pins, weight 97 to 106kg per Running Km etc. as directed (each line wire to be measured) complete all as specified and directed.

M & L for Preparation of new steel and iron surfaces of any description over 10 cm in width or girth,priming with a coat of red oxide primer and applying two coats of epoxy coating paint complete all as specified

M & L for Preparation of surfaces of any description wood/steel, iron etc exc 10cm in width or girth and applying one coat of black bituminous paint on embedded steel post portion complete all as specified

M & L for 20-25 mm thick non bituminous joint filler such as closed cell polyethylene (PE) foam boards and EVA foam , high performance water resistent , non staining , over 90 % recovery after compression for expansion joints retaining wall all as specified as per IS 1838 (Part-3)-2011 as per direction of Engineer-in-charge.

Providing and fixing concertina coil fencing with punched tape concertina coil 600mm dia, 6mtr length, having 50 Nos rounds per 6 mtr length, 125 to 127 clips, spring core wire (2.5 mm thick) weight of each concertina coil not less than 8.4 Kg and fixing the same on existing Y-shaped angle iron, stud tied with GI staples and GI clips to retain horizontal, including necessary bolts, all complete as per directions of Engineer-in-Charge.

Providing & Laying of a High Strength Woven multifilament polypropylene woven geotextile TFI 1500 (Z) of Tech fab India Pvt Ltd.(or) equivalent of Maccaferri/Garware Technical fibe, as per ASTM standards laid over the sand all as per manufacturer instruction and as directed by Engineer -in-Charge.

Supply heavy duty Geotextile bags, woven ,UV resistant polyprophlene ( Geo Bags) with thickness of 400-1000 GSM, size 1200mm x 1200mm for coastal protection, filling the available sand obtained from excavation in heavy duty Geotextile bags to form a consolidated thickness of 150mm, stitching properly after sand filling and placing in postion manually as directed by Engineer-in -charge laid Riprap 300 mm thick in double layer over the Geofibre Filler layer as per drawing all as specified and directed. Make:Techfab (India) Industries Ltd.

Supplying and laying basalt/granite trap stones of weight 200-300Kg in two layers including transportation with all the leads, lifts, laying in required lines, level, slope as per drawing including necessary equipments and machinery as directed by Engineer-in-Charge at site complete in tidal conditions. Note :- (i) Qty to be considered/Measured/paid as Cubic content after deduction of 25% volume on account of voids from actual bulk Volume measured fter laying both layers. Depth of stone filling shall be as per drawing. (ii) 50% of stones shall be weighing more than 250 Kg/each as shown on drawing which shall be strictly adhered to. The contractor shall make arrangements for sorting of stones by weight and the rate quoted shall be inclusive of same. (iii) Stone to be laid in layers as directed by Engineer-in-charge at site. (iv) The minimum density of stones shall be 2600 Kg /Cum.

All as per item No 25 here-in-before but except stone

Providing and laying basalt/granite trap stones weighing 1.5 tonne to 2.0 tonne capacity for Subarmour/Apron/Armour layer including transportation with all the leads, lifts, laying in required lines, level, slope as per thickness mentioned in drg laid in double layer including necessary equipments and machinery as directed by Engineer-in-Charge at site complete in tidal conditions. Note :- (i) Qty to be considered/Measured/paid as Cubic content after deduction of 25% volume on account of voids from actual bulk Volume measured fter laying both layers. Depth of stone filling shall be as per drawing. (ii) 50% of stones shall be weighing more than 1.75 tonne/each as shown on drawing which shall be strictly adhered to. The contractor shall make arrangements for sorting of stones by weight and the rate quoted shall be inclusive of same. (iii) Stone to be laid in layers as directed by Engineer-in-charge at site. (iv) The minimum density of stones shall be 2600 Kg /Cum.

Providing and laying basalt/granite trap stones weighing 2.0 ton to 3.0 ton for Subarmour/Apron/Armour layer including transportation with all the leads, lifts, laying in required lines, level, slope as per drawing including necessary equipments and machinery as directed by Engineer-in-Charge at site complete in tidal conditions. Note :- (i) Qty to be considered/Measured/paid as Cubic content after deduction of 25% volume on account of voids from actual bulk Volume measured fter laying both layers. Depth of stone filling shall be as per drawing. (ii) 50% of stones shall be weighing more than 2.50 tonne/each as shown on drawing which shall be strictly adhered to. The contractor shall make arrangements for sorting of stones by weight and the rate quoted shall be inclusive of same. (iii) Stone to be laid in layers as directed by Engineer-in-charge at site. (iv) The minimum density of stones shall be 2600 Kg /Cum. (v) Armour stone to be laid as per the depth indicated in drawings. Top edge of each stone in top layer should not be below the design level as shown on drawing.

M & L Reinforced cement concrete of M40 grade (Design Mix) in Crest slab with parapet wall over the trap stones as per drawing and specifications of required shape complete all as specified and directed. ( Note : Packing of stones to fill the voids in armour layer shalll be provided beneath crest slab to support slab before casting of slab. Rate quoted shall be inclusive of this provision and nothing extra shall be paid on this account. Only concrete layer over and above the base preapred shall be paid.)

M & L Formwork to sides Crest slab with parapet wall over the trap stones and soffits of arches finished with fair finish surfaces all as specified and directed.

S&F for CRS/HCRM bars 10mm dia and over cut to length bend to shape required including cranking bending spirally for crest slab with parapet wall over sea protection and hooping for columns, hooking ends and binding with including mild steel wire not less than 0.9mm dia or securing with clips complete all as specified and directed.

Removing the existing stones/rocks laid in sea protection including tranporting the rock by lorries/dumpers from panambur beach site and stacked / dumped properly in near by location of NMPA site or any other site identified by Engineer-in-Charge