Darrang/SDMF/6

Clearing and grubbing road land including uprooting wild vegetation, grass, bushes, shrubs, saplings and trees of girth upto 300 mm, removal of stumps of such trees cut earlier and disposal of unserviceable materials and stacking of serviceable material to be used or auctioned, upto a lead of 1000 m including removal and disposal of top organic soil not exceeding 150 mm in thickness as per Technical Specification Clause 201. By Manual Means In area of non thorny jungle

Excavation for Structures (Earth work in excavation of foundation of structures as per drawing and technical specification, including setting out, construction of shoring and bracing, removal of stumps and other deleterious matter, dressing of sides and bottom and backfilling with approved material. I) Ordinary soil A) Manual Means (II) With dewatering

Providing and fixing of self-drilling anchors of min. 32 mm diameter on cut slope with attached sacrificial drill bit, nut, washer plate, coupler for connecting bars with suitable corrosion protection coating for bar and accessories and full length grouting including all ancillary works for soil nailing/surface anchoring including all ancillary material, machinery, Labour etc. as per detailed technical specifications and as per Engineer - In - Charge.

Providing and laying one layer of Non-Woven geotextile of minimum mass per unit area of 280gms/sqm. having minimum roll width of 5.0m treated with carbon black with physical properties as given in clause no 702.2.3. over 25mm thick compacted sand layer on a prepared subgrade as a filter media with necessary overlaps as per drawing and technical specification and as directed by the Engineer in charge complete.

Supplying and installation of stone facia unit with integrated tail as secondary reinforcement of length 2 m that is made of mechanically woven, double twisted, hexagonal shaped wire mesh, Mesh type 10x12 as per IS 16014:2018, having D=100mm with tolerance of +/-10%, wire dia ID/OD 2.7/3.7mm, Zinc+ High Abrasion Resistant Polymer class A coated, mechanically edged/selvedged and shall have minimum 10 numbers of mesh openings per meter of mesh perpendicular to twist, with partition at 1 m interval etc. (exclusive of supply and filling of stones) complete as per detailed technical specifications attached and as directed by Engineer-in –Charge.

Providing and laying boulder apron for bed protection with stone boulders of minimum size and weight as per Table1300.1, no fragment weighing less than 25 kg laid dry complete as per drawing and technical specifications Clause 1301

Backfilling behind abutment, wing wall and return wall complete as per drawings & technical specification Clause 1204.3.8 Sandy material

Supplying and laying drainage composite for use behind walls, between two different fills etc. having three dimensional composite with thermobonding a draining core having “N” configuration in extruded monofilaments of minimum thickness 8mm, with two filtering UV stabilized polypropylene nonwoven geotextile of minimum thickness of 0.75mm charactersitic opening size (O90) of 150 micron and tensile strength of 8.0 kN/m that will be working as separation or protecting layer, Geocomposite having in plane flow capacity of 2.1 L / (m.s) at hydraulic gradient of 1.0 & 20 kPa pressure and tensile strength of 28 kN/m, with mass per unit area of 1400 gsm, having minimum creep reduction factor of 1.15 for 100 years life at 100 kPa, at easily accessible location including top and bottom, with all leads and lifts, manpower and machinery, materials, labour etc. complete as per detailed technical specifications and as directed by Engineer - In - Charge.

Providing and installation of Cruciform shaped horizontal consolidation units of size 3.1m (height) X 3.6m (width) made of HE 120B/E275 grade as defined in IS 2062 steel beams (min.) connected to single anchor by universal ball joint having the min. breaking load of 300kN and having 8 no's of steel wire ropes connected to front beams and tubular tie and having front facing rhomboidal steel wire rope panel made of 8mm diameter of mesh size 300 mm x 300mm with steel wire knot connection at joint Zn+Al5% class A coated of min. wire rope grade 1770 MPa and nominal punching resistance not less than 250kN when tested in accordance with ISO 17746 and mechanically woven double twisted hexagonal shaped Zn+Al5% class A coated wire mesh panel with mesh wire tensile strength 380-550mpa when tested with IS 16014 : 2018 attached to the cruciform frame as per Particular/technical specification.

Providing & making Gabion structure with Mechanically Woven Double Twisted Hexagonal Shaped Wire mesh Gabion Boxes as per IS 16014:2018,MORTH Clause 2500, of required size, Mesh Type 10x12(D=100 mm with tolerance of ±2%), Zinc + PVC coated, Mesh wire diameter 2.7/3.7mm (ID/OD), mechanically edged/ selvedged with partitions at every 1m interval and shall have minimum 16 numbers of openings per meter of mesh perpendicular to twist, tying with lacing wire of diameter 2.2/3.2mm(ID/OD), supplied @3% by weight of Gabion boxes, as per drawing, all complete as per directions of Engineer-incharge. (Excluding boulder)

Supply and installation of CE certified three dimensional erosion control mat made of polypropylene polymer of minimum mass per unit area 420 gm / sqm extruded on to a mechanically woven double twisted hexagonal shaped steel wire mesh (as per EN 10223-3)made up of 2.7mm dia having a Polypropylene polymer density min. 900kg/m3. Steel wire and mesh type 8 x 10 having Zn-Al 5% Class A coating as per EN 10244-2 longitudinally weaved during manufacturing with steel cable of 8 mm diameter at a spacing of 1 m. The composite shall have a longitudinal tensile strength of min 70 kN/m and punch resistance is min 75kN with min. nominal thickness of 11mm. Including fixing of U pins of 8mm diameter of depth 500mm at 1m c/c spacing, top support rope, bottom support rope, thimbles, U-clamps, etc at easily accessible location including top and bottom, with all leads and lifts, manpower and machinery, materials,labour etc. complete and as directed by Engineer - In - Charge.

Construction of 4.00m RCC Triple Cell Box Culvert (3mx3m) Earth work in excavation of foundation of structures as per drawing and technical specifications Clause 305.1, including setting out, construction of shoring and bracing, removal of stumps and other deleterious material and disposal upto a lead of 50m, dressing of sides and bottom and backfilling with approved material. I. Ordinary soil upto 3 m depth

Removal of unsuitable soil including excavation, loading and disposal upto 1000m lead but excluding compaction ground supporting embankment subgrade replacement by suitable soil, which shall be paid separately as per Clause 303.5.2 as per Technical Specification Clause 302.3.11

Providing and laying of dry rubble flooring complete as per drawings and technical specifications clause 1303.3

PCC 1:3:6 in foundation (Plain cement concrete 1:3:6 niminal mix in foundations with crushed stone aggregate 40mm nominal size mechanically mixed, placed in foundation and compacted by vibration including curing for 14 days.

Plain/Reinforced cement concrete in open foundation complete as per drawings and technical specifications including steel shuttering formwork II) With plasticiser (Masterplast PL-1/SPL-2 & 2100 or equivalent) air-entraining and water reducing plasticiser. E. RCC Grade M25 .(i) Using concrete Mixer (ii) With Batching Plant, Transit Mixer and Concrete Pump

Reinforcement in foundation Supplying, fitting and placing TMTIS:1786 (Fe-500 D) bar reinforcement in foundation complete as per drawings and technical specifications (a) TMT-IS1786(Fe-500D) Primary Producer (TATA/SAIL/Esser Steel/Jindal panther steel?Shyam steel.

Plain/reinforced cement concrete in substructure complete as per drawings and technical specifications and steel shuttering formwork F) RCC Grade M25 a) Height upto 5m Case II With Batching Plant, Transit Mixer and Concrete Pump

Reinforcement in Sub-structure: Supplying, fitting and placing TMT (Fe-500 D) reinforcement bar (Other ISI approved TMT reinforcement bar (SAI/BISCON/THERMAX or equivalent) in substructure complete as per drawings and technical specifications Clauses 1002, 1005,1010 & 1202

Furnishing and Placing Reinforced /Prestressed cement concrete in superstructure II Using Batching Plant, Transit Mixer and concrete Pump (i) For solid slab super-structure a. Height upto 5m

Reinforcement in Superstructure: Supplying, fitting and placing TMT (Fe-500 D) reinforcement bar (Other ISI approved TMT reinforcement bar (SAI/BISCON/THERMAX or equivalent) in super-structure including splicing complete as per drawings and technical specifications (a) TMT-IS1786(Fe-500D) Primary Producer (TATA/SAIL/Esser Steel/Jindal panther steel?Shyam steel.

Mastic Asphalt Wearing Course Providing and laying 12mm thick mastic asphalt wearing course on top of deck slab excluding prime coat with paving grade bitumen meeting the requirements given in table 500-29, prepared by using mastic cooker and laid to required level and slope aftering cleaning the surface, including providing antiskids surface with bitumen pre coated fine grained hard stone shipping of 9.5mm nominal size at the rate of 0.005 cum per 10sqm and at approximate spaciong of 10cm centre to centre in both directions, pressed into surface when temperature of the surfaces not less than 100 degC, protuding 1mm to 4mm over mastic surface, all complete as per clause 515

Drainage Spouts complete as per drawings and technical specifications

Construction of precast RCC railing of M30 Grade, aggregate size not exceeding 12mm, true to line and grade, tolurence of vertical RCC post not to exceed 1 in 500, centre to centre spacing between vertical post not to exceed 2000mm, leaving adequat space.

PCC M15 Ordinary grade (1:2.5:5) leveling course below approach slab as per drawing and technical specifications Clause 800 and 1211 A. With crushed stone i. Nominal mix (1:2.5:5)

Reinforced Cement Concrete M 25 Grade approach slab including reinforcement and formwork complete as per drawing and te

chnical specifications Clauses 800 and 1211 A. With crushed stone

Backfilling behind abutment, wing wall and return wall complete as per drawing and Technical specification clause 1204.3.8I. Granular material