Tender For Providing Pvc Geomembrane Water Proofing System On The Upstream Dam Face And Cleaning Of Vertical Porous Drains / Foundation Drains.
Tender Value
15.65 Crore
Estimated cost
Bid Submission
21 Sep 2026
5 days left
EMD
31.31 Lakhs
Bank guarantee accepted
Document Fee
2000
Non-refundable
Tender Type
Online
Tender Overview
Organization
Tender ID
Competition Type
NCB
Bidding Type
Tender
Location / State
goa → Goa
EMD Exemption
Not Available
Quantity
Not Available
Website
Contact Person
Address
Project Description
Tender for Providing Pvc Geomembrane Water Proofing System On The Upstream Dam Face And Cleaning Of Vertical Porous Drains / Foundation Drains.
Corrigendum
| Sr No | Corrigendum Date | Corrigendum | Type | New Submission Date |
|---|---|---|---|---|
| 1 | 28-Aug-2026 | Corrigendum No. 3 (2026-27) | Date | 21-Sep-2026 |
BOQ
| Sl. No. | Item Description |
| 1 | PVC Geomembrane works |
| 2 | Surface Preparation consisting of inspection of the entire section, hydrojetting the entire upstream masonry face with special pressure jet pumps operating between 100 to 200 Bar pressure to get rid of loose particles. Hammer test to identify the hollow section of the gunite layer and wherever required, removal of loose gunite layers needs to be filled up with special geosynthetic grid materials to fill up the cavities and including all tools, equipment, anchors, fixation materials using special platforms, labourers, technicians etc. The entire works to be done in dry conditions and as directed by the Engineer-in-charge, complete. |
| 3 | Design, Supply fixing and testing of waterproofing system with an impervious liner consisting of two layers of geo-synthetics mechanically heat coupled together during extrusion, one being a PVC geo membrane of 2.5 mm thick and the second one a non-woven geotextile needle punched polypropylene geotextile having mass per unit area not less than 500g/m2 to form a PVC “geo-composite” of width not less than 2m, laid over an anti-puncture geotextile of minimum 11mm thick having mass per unit area not less than 2000g/m2 wherever required. |
| 4 | Excavation of Deposited Overburden Silt and debris from the upstream face of the dam on the left and right flanks at the sloped section of the dam to make required working space to attend to Geomembrane Sealing System works using earth moving equipment, tippers or other equipment etc, as directed by the Engineer-in-Charge Complete. |
| 5 | Chipping, racking and re-pointing of masonry face to provide structural integrity of the dam using plain cement mortar and fill the cavities wherever required, as directed by the Engineer-in-Charge, Complete. |
| 6 | Drilling holes of 50 mm dia. on the Upstream Face of the dam with an inclination using NX Diamond Drill Bit to consolidate porous section of the dam body to a depth of 2 to 3 meter in stages, wherever the foundation could not be reached during excavation, as directed by the engineer in charge, complete. |
| 7 | Cement Grouting for the drilled holes in various stages, including cost of cement, grouting equipment, etc. Water Percolation Test to be conducted prior to check the flow path of the cement grout. Properly plugging the adjacent drilled holes before to grout the target hole, complete as directed by the Engineer-in-Charge. |
| 8 | Cleaning of Vertical Porous drains and the Foundation Drains. |
| 9 | Carrying out Vertically Upward Drilling from foundation gallery of dam for cleaning of Vertical Porous Drains (VPD) by specially designed High Powered Hydraulic Drilling Rigs remote control operated for dia upto 150mm. |
| 10 | Upto 15m depth |
| 11 | Upto 20m depth |
| 12 | Upto 25m depth |
| 13 | Upto 30m. depth. |
| 14 | Upto 35m. depth. |
| 15 | Reaming uplift pressure holes of 100/75 mm dia to the entire depth by rotary drilling from the top of gallery up to the deepest foundation, the rate inclusive of all machineries required for the work and also labour charges for operation, cleaning in pressure holes after reaming by jet cleaning using compressed air, transport charges for machinery and shifting them to different locations etc., complete at site and as per standard specifications and also as directed by the departmental officers. Please Enable Macros to View BoQ information |
AI Tender Summary
Tender Timeline
Aug 28, 2026
11:30 IST
Tender Published
Tender notice published.
Completed
Sep 21, 2026
18:00 IST
Corrigendum-1 Issued
Clarifications on tender conditions and amendments issued.
Upcoming · 5 daysSep 21, 2026
17:00 IST
Bid Submission Deadline
Online submission via eProcurement portal.
Upcoming · 5 daysSep 23, 2026
Bid Opening Date
Technical bids will be opened and evaluated.
Upcoming · 7 daysTender Documents
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