Tender For Providing Of Retaining Wall Near Tcp-1 At Katapahar Under Age(I) Darjeeling.
Tender Value
1.24 Crore
Estimated cost
Bid Submission
22 Jul 2026
13 days left
EMD
1.99 Lakhs
Bank guarantee accepted
Document Fee
1000
Non-refundable
Tender Type
Online
Tender Overview
Organization
Tender ID
Competition Type
NCB
Bidding Type
Tender
Location / State
darjeeling → West Bengal
EMD Exemption
Available
Quantity
Not Available
Website
Contact Person
Address
Project Description
Tender For Providing Of Retaining Wall Near Tcp-1 At Katapahar Under Age(I) Darjeeling.
BOQ
| Sl. No. | Item Description |
| 1 | Earth work in excavation in all kind of soil by mechanical means (Hydraulic excavator) means over areas (exceeding 30 cm in depti 1.5 m in width as well as 10 sqm on plan) including getting out and disposal of excavated earth lead upto 1000 m and lift upto 1.5m complete all as specified and directed. |
| 2 | Providing PCC 1:2:4, Type B-2 (40 mm graded aggregate) concrete in foundation with crushed stone aggregate 40mm nominal size mechanically mixed ,placed in foundationand compacted by vibration in cluding curing for 14 days including material ,machinery and labour complete as per technical specification and as directed by Engineer-In-Charge. |
| 3 | MSL for Reinforced cement concrete M-25 (Design mix) (using 20mm gradded crushed stone aggregate) as in concrele pedestal, jacketing complete all as specified and directed. |
| 4 | M&L for formwork to sides of concrete foundations, Concrete Pedestal, footings, bases of columns, raft and raft beams, sides and soffits (if any) of foundation and plinth beams; and similar work; vertical or to batter fair finish complete all as specified and directed. |
| 5 | MBL for TMT bar 10mm dia and over, cut to length, bent to shape required, including cranking. bending spirally for hooping of columns, hooking ends and binding wire and including mild steel wire (annealed not less than 0.90 mm dia or securing with clips, complete all as specified and directed. |
| 6 | Supply and Installation of polyster needle punched non woven gwotextile as filter media behind Gabion wall, behind gabion wall as per MoRTH 700 Type-III geotextile. The width of geotextile roll shall not be less than 4.5 m, at easily accessible location including top and bottom, with all leads and lifts, manpower and machinery, materials labour etc. complete and as directed by EIC. |
| 7 | Supply and Installation of Self Drilling Anchors of 38mm/19mm diameter (OD/ID), Yield load minimum 400 kN, nut, Bearing plate (sixe 200 x 200 x 10mm), coupler for connecting bars, drill bit and full length grouting with suitable non-shrinkage admixture including all ancillary items for foundation anchoring etc. including material, machinery and labour complete as per technical specifications complete all as specified and shown on drawing and as directed. |
| 8 | Supply and installation of High Tensile Strength steel wire/cable mesh integrated during manufacturing with three dimensional erosion control mat having minimum tensile strength 150 KN/M with coating for corrosion resistance, 95% ZN + 5% AL (+/-1%) with 3D erosion control mat of PP having minimum mass per unit are 400 grams/Sq m extruded with steel wire/ cable mesh including top support rope, bottom support rope and all other accessories, material, machinery, labour etc. complete or equivalent/ higher system along with detailed drawings and specifications. The equivalent or higher system will be evaluated by IIT. Equivalent product meeting the specifications shall be technically evaluated and accepted. |
| 9 | Application hydraulically applied erosion control products by means of hydroseeding/ hydromulching using Biotic Soil Meadia and High Performance Flexible Growth Medium on the hill side and valley side slope surface erosion control by means of vegetation Hydroseeding of soil slopes using hydraulically applied erosion control products including mixing of seeds, mulch (meeting performance parameters as mentioned in technical specification), fertilizer and soil amendment products if required in hydroseeder machine with water and spraying the mixture with 100 psi pressure pump on hilly slopes on exposed soils. |
| 10 | Supplying and installation of Gabion facia unit with integrated tail as secondary reinforcement of length 2m that is made of mechanically woven, double twisted, hexagonal shaped wire mesh, Mesh type 10x12 as per IS 16014:2018, having D=100 mm with tolerance of +/- 10%, wire dia ID/OD 2.7/3.7mm, Zinc + Polymer class A coated with minimum tensile strength of 40kN/m and punch strength 25kN, 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. (inclusive of supply and filling of stones) complete as per detailed technical specifications attached and as directed by Authority’s Engineer. 3m x 1m x0.5m (LxBxH) |
| 11 | Providing and laying of high strength flexible geo-grid as primary reinforcement at site store maintained by contractor with a high quality coating like LDPE or equivalent. Latex or Polymer coating or geo-textile or any other coating shall not be permitted. Selection of geo-grid be strictly based on long term design strength values for a design life of 120 years at 20°C. GEOGRID shall have High Strength Flexible Uniaxial with low creep characteristics consisting of polyester (PET) & having an outer protective coating of low density polyethylene sheath. It shall have Ultimate tensile strength as mentioned below against each sub item for reinforcement in Flexible Retaining Wall etc. complete as per detailed technical specifications attached and as directed by Authority’s Engineer High Strength Geogrid of tensile strength (MD) : 114 kN/m (long term) |
| 12 | 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 8 mm, with two filtering UV stabilized polypropylene nonwoven geotextile of minimum thickness of 0.75 mm characteristic 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 Authority’s Engineer. |
| 13 | Providing and installing subsurface drainage pipes behind the reinfiorced soil structure with perforated PVC pipe (lined with Non -woven Geotextile) of 160 mm internal diameter as per the drawings etc. complete and as directed by Authority’s Engineer. |
| 14 | Providing & Backfilling behind gabion wall with approved selected reinforced granular fill material to be obtained from private querry or land as available within lead of 1-2 km including all leads and lifts, including segregation, complete as per drawing and technical specification (Reference to MoRT&H's specification Clause 3100 and IRC:78 clause 710.1.4) & 2200. (reinforced fill) |
| 15 | Note 1:- (Applicable for all parts/items) : The bidders/contractors are advised to read tender document, all drawings & all corrigendum / amendments and general condition of contracts before entry / quoting the rates.Note 2:-The contract sum shall be arrived at after deducting amount of schedule of credit from the total quoted amount. Please Enable Macros to View BoQ information |
AI Tender Summary
Tender Timeline
Jul 06, 2026
11:30 IST
Tender Published
Tender notice published.
CompletedJul 22, 2026
17:00 IST
Bid Submission Deadline
Online submission via eProcurement portal.
Upcoming · 13 daysJul 23, 2026
Bid Opening Date
Technical bids will be opened and evaluated.
Upcoming · 14 daysTender Documents
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