Pressure Relief Wells Geotechnical Investigation for Kwaggaskloof Dam Rehabilitation in the Western Cape for Dws Construction South, Only Respondents with Cidb Grading 2ce or Higher Are Eligible to Bid.

WTE-0453 CS

2026-03-03 11:00

Tender Closed on: 2026-03-19 11:00

2 CE

Borehole, Exploration and Geotechnical Drilling Services and Equipment, Civil Works Services, Geotechnical, Hydrogeological and Geological Engineering and Services

Paarl, Western Cape, Worcester

Department of Water and Sanitation

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Tender Number: WTE-0453 CS
Department: Water and Sanitation
Tender Type: Request for Bid(Open-Tender)
Province: Western Cape
Closing Date: Thursday, 19 March 2026 - 11:00
Place where goods, works or services are required: KWAGGASKLOOF DAM - KWAGGASKLOOF DAM - KWAGGASKLOOF DAM -
Special Conditions: A COMPULSORY SITE MEETINGS WILL BE HELD AT THE KWAGGASKLOOF DAM SITE OFFICES ON THE 03 MARCH FROM 11:00 TILL 12:00 WITH CO-ORDINATES AS FOLLOWS: 33.7711° S, 19.4400° E
ENQUIRIES:
Contact Person: JAMES VAN DER HEEVER
Email: [email protected]
Telephone number: 021-872-0591
FAX Number: N/A
BRIEFING SESSION:
Is there a briefing session?: Yes Is it compulsory? Yes
Briefing Date and Time: Tuesday, 03 March 2026 - 11:00
Briefing Venue: KIRKWOOD SITE OFFICES

This tender is also available from www.etenders.gov.za


Tender Summary

Objectives

The primary objective of this tender is to conduct a geotechnical investigation for pressure relief wells as part of the rehabilitation of Kwaggaskloof Dam in the Western Cape. The investigation aims to support dam safety improvements by providing essential geotechnical data, including drilling, water pressure testing, and rock testing, to facilitate the dam's rehabilitation and ensure its structural integrity and safety.

Scope

The scope of work includes:

  • Setting out and survey for the geotechnical investigation.
  • Drilling of five (5) boreholes, each 15 meters deep, using diamond core drilling techniques.
  • Laboratory testing of core and soil samples, including rock strength tests.
  • Installation of three (3) standpipe piezometers of 15 meters depth for groundwater monitoring.
  • Water pressure testing and rock testing in accordance with standard specifications.
  • Preparation and submission of a comprehensive report with test results.
  • Provision of all necessary equipment, personnel, safety measures, and insurance for the investigation.

The investigation supports the broader dam rehabilitation project, which involves civil works such as downstream drainage, erosion protection, and outlet works refurbishment.

Technical Requirements

The technical requirements include:

  • Drilling five (5) boreholes to 15 meters depth with diamond core drilling (Nx-size).
  • Rock strength laboratory testing and grouting tests on core samples.
  • Installation of three (3) standpipe piezometers of 15 meters depth.
  • Compliance with the Standard Specifications for Subsurface Investigations 2010.
  • Provision of competent personnel with valid certificates and medical clearance.
  • Use of PPE and adherence to Occupational Health and Safety regulations.
  • Delivery of a detailed geotechnical report post-investigation.
  • Insurance coverage for equipment and safety compliance.

Skills Requirements

The tenderer must demonstrate:

  • Proven experience in geotechnical investigations, particularly rotary core drilling and rock testing.
  • Competency certificates for personnel involved in drilling, sampling, and testing activities.
  • Ability to operate and maintain drilling equipment and laboratory testing facilities.
  • Knowledge of standard geotechnical investigation procedures and safety protocols.
  • Capacity to prepare comprehensive technical reports with test results and analysis.
  • Compliance with all health, safety, and environmental regulations.
This summary is AI generated. Download the tender documents for all the information.

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