Infrastructure Development
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Infrastructure Development. Presentation to SCOA 28 August 2012 Cape Town aDDG: NWRI. Projects within Capital Projects. Olifants River Water Resources Development Project – Phase 2A (De Hoop Dam). Progress/Challenges Impoundment delayed to August 2012

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Infrastructure development

Infrastructure Development

Presentation to SCOA

28 August 2012

Cape Town

aDDG: NWRI


Projects within capital projects

Projects within Capital Projects


Olifants river water resources development project phase 2a de hoop dam

Olifants River Water Resources Development Project – Phase 2A (De Hoop Dam)

Progress/Challenges

Impoundment delayed to August 2012

Green Scorpion’s allegations of non-compliance

Sediment from upstream open cast mining polluting and decreasing dam storage capacity

Community distress if primary water is not supplied

Some workers’ contract completion processes to commence in February 2012

The section 19 pollution remediation directive has been issued.

Project description:

Construction of the 80 m high De Hoop Dam and related infrastructure - to supply water to domestic and industrial users in the middle Olifants river catchment area.

Status: Approved as Government Water Work.

Province: Limpopo

Jobs impact:

  • Direct project construction jobs (peak):

    • 1150 : De Hoop Dam

    • 528 : Road re-alignment

    • 250 : Housing infrastructure

  • Jobs due to new industrialisation and growth: ±5000

    Projected cost to completion:

  • Phase 2A (Dam): R3.1bn

    Project Scope:

  • Construction of the De Hoop Dam.

  • Re-alignment of 20 km portion of P169-1.

  • Housing infrastructure

    Project schedule:

  • Construction started: June 2007

  • Construction Completion: March 2013


Olifants river water resources development project phase 2 bulk distribution system

Olifants River Water Resources Development Project – Phase 2 Bulk Distribution System

Progress / Challenges

The mining houses did not want to sign the off take agreements (citing that the water was too expensive); TCTA could not obtain funding from the capital market because of this,

TCTA already had committed funds on the projects because of the detail design already 90% complete

National Treasury had to fund the revised directive to implement Phase 2C (pipeline from the De Hoop dam to Steelpoort)

Phase 2C important as the De Hoop dam is almost completed.

Facilitation process amongst stakeholders to agree on the BDS configuration.

Still a possibility of off budget funding when facilitation process is completed.

Project description:

The construction of the bulk distribution system which will transfer water from the De Hoop and Flag Boshielo Dams to domestic and industrial users in the middle Olifants River catchment area.

Status: Approved as Government Waterwork.

Province: Limpopo

Jobs impact:

  • Direct project construction jobs: 2 000 jobs for the BDS

  • Jobs due to new irrigation and industrialisation and growth: 5 000

    Projected cost to completion:

  • Phase 2B-H (Distribution): R12,975bn

    Project Scope:

  • Construction of the Bulk Distribution system that will convey raw water from the De Hoop and Flag Boshielo Dams to domestic and industrial users.

    Project schedule:

  • Construction of 2C commenced, completion by March 2014.

  • Phased completion following implementation of water reconciliation study and funding availability


Mdloti river development hazelmere dam raising

Mdloti River DevelopmentHazelmere Dam Raising

Project description:

  • This project is to augment the water supply to the KZN North Coast by increasing the yield of the dam for medium term supply.

    Status: Approved as Government Water Work.

    Province: KwaZulu Natal, ILembe District.

    Jobs impact:

  • Direct project jobs estimated at 300.

    Projected cost to completion:

  • The revised estimate (April 2012) is R 360 million (incl. VAT, contingencies, escalation)

    Project Scope:

  • The installation of crest gates.

  • Civil work for dam safety and stability.

  • Acquisition of additional land in dam basin.

    Project schedule:

  • Design of civil works started - October 2011

  • Civil contract award - July 2013

  • Gate contract award - November 2012

  • Project completion - September 2014

Progress & Challenges:

  • Valuation of properties and tender for crest gates is on hold pending outcome of viability of project at increased cost.

  • Due diligence analysis of preferred design option for raising, incl. geological investigation, has been completed.

  • Report on preferred design option needs to be submitted to CD: IWR Planning.

    Connected issues:

  • Construction of infrastructure by Umgeni Water.

    Decisions required:

  • Economic viability of project needs to be confirmed by Chief Director: IWR Planning.

5


Olifants doorn river water resources project raising of clanwilliam dam

Olifants-Doorn River Water Resources Project – Raising of Clanwilliam Dam

Project description:

  • Raising of existing full supply level by 13 metres to provide additional water to supply full existing allocation, establish resource poor farmers and address dam safety aspects.

    Status: Approved as Government Water Work.

    Province: Western Cape, Cederberg Municipality.

    Jobs impact:

  • Direct project construction jobs: 650

  • Jobs due to new irrigation and growth: 2 500

    Projected cost to completion: R1 830 million

    Project Scope:

  • Raising of the dam wall and spillway.

  • Construction of a multi-level outlet works.

  • Re-alignment of Route N7 and Provincial roads.

  • Compensation for affected properties.

    Project schedule:

  • Design of N7 re-alignment started - July 2011

  • Design of dam wall started - March 2011

  • Construction of N7 re-alignment - Nov 2012

  • Construction of dam wall raising - April 2013

  • Completion of project - May 2017

Progress & Challenges:

Design of the N7 re-alignment is in progress.

Investigation of Provincial roads has started.

Detailed design of dam wall raising and outlet works is in progress.

Determination of dam boundary line is in progress.

Connected issues:

Upgrading of existing conveyance system and allocation of water to users.

Decisions required:

Record of Implementation Decisions.

Confirmation of funding from National Treasury for construction of project.


Mokolo and crocodile river west water augmentation project phase 1 mcwap 1

Mokolo and Crocodile River (West) Water Augmentation Project Phase 1 (MCWAP-1)

Progress& Challenges:

Project advanced to detail design and construction phase.

Water supply agreements concluded between Eskom, Exxaro and DWA.

DWA-TCTA Implementation Agreement concluded December 2011.

Fitch rating AA+ achieved, funding secured

Contract awarded in June 2011.

Site handed over to contractor on 14 Sept 2011 and physical activities started during November 2011

Environmental baseline studies ongoing

No significant challenges at this stage

Agreement on subsequent phases to be obtained

Project description:

Construction of a pumping station and 46 km of pipeline, with a diameter of 1m to deliver bulk raw water from the Mokolo Dam to Medupi and Matimba Power stations, Exxaro and for the expected growth in the Lephalale Municipality. The existing pipeline will be refurbished following commissioning of the new works.

Status:

Approved as Government Waterwork.

Province:

Limpopo

Jobs impact:

  • Direct project construction jobs: 1 600

    Projected cost to completion:

    R2,138 billion

    Project Scope:

  • Construction of a pumping station.

  • Construction of a 46 km, 1m diameter pipeline.

  • Refurbishment of existing pipeline

  • TCTA to obtain off budget funding (75% commercial)

    Project schedule:

  • First delivery of water at the end of 2013

  • Forecast project close out: August 2015


Komati water system augmentation project kwsap off budget

Komati Water System Augmentation Project - KWSAP (Off-budget)

Project schedule:

Construction commenced in January 2011

Forecast project close out in October 2013

Progress & Challenges:

Water supply long term funding for the project had been secured.

Delays in pipe manufacturing solved

17,5 km pipes laid, expect water delivery end January 2013

No significant challenges reported

Project description:

Construction of a pumping station and two pipelines to provide water to Duvha and Matla Power Stations.

Status: Approved as Government Waterwork.

Province: Mpumalanga

Jobs impact:

  • Direct project construction jobs: 800

    Projected cost to completion:

    R1,736 billion

    Project Scope:

  • Construction of a pumping station at Rietfontein Weir.

  • Construction of a 58,4 km , 1,1m diameter pipeline to Duvha Power station

  • Construction of a 12,9 km , 600mm diameter pipeline to Matla Power station.

  • TCTA to obtain off budget funding (100%)


Mooi mgeni transfer scheme phase 2 off budget

Mooi Mgeni Transfer Scheme – Phase 2 (Off-budget)

Municipal off-take Agreements between Umgeni Water (UW) and eThekwini, uMgungundlovu and Msunduzi Municipalities were signed

Progress & Challenges:

Stage 2 River Diversion works are completed.

Excavation completed

EMPR restriction of 30 heavy duty trucks per day hindering supply of construction materials was lifted

Impoundment delayed to January 2013

Environmental authorisation of pipeline route contested and upheld resulting in reassessment of environmental impact assessment, started during February 2012

Pre-qualification of contractors commenced

Project description:

Construction of the 42 m high Spring Grove Dam, the associated transfer system and the refurbishment of existing MMTS-1 pumping station and transfer system.

Status: Approved as Government Waterwork.

Province: KwaZulu Natal

Jobs impact:

  • Direct project construction jobs: 850

  • Jobs due to growth: 800

    Projected cost to completion: R1,67billion

    Project Scope:

  • Refurbishment of existing MMTS-1 pipeline system.

  • MMTS-2A:Construction of the 42 m high Spring Grove Dam.

  • MMTS-2B: Construction of a transfer system.

  • Acquisition of off budget funding by the TCTA (100%).

    Project schedule:

  • Construction Commenced during Feb 2011

  • Forecast Project Closure Jan 2015

    Progress/Issues:

  • The sod turning event was held on the 16th May 2011.


Vaal river eastern sub system augmentation project vresap off budget

Vaal River Eastern Sub-System Augmentation Project (VRESAP)(Off-budget)

Expenditure:

Project 99% complete (permanent abstraction works not complete)

Earning revenue from June 2009

Progress & Challenges:

Works commissioned, snags being addressed

Abstraction works to be completed by May 2012.

Challenges experience with the coffer dam demolition.

Potential legal action by contractor (C-MC) due to premature contract termination for poor performance.

DWA O&M staff challenges

Project description:

Construction of a raw water conveyance system of an abstraction system, storage reservoir, a high lift pump station, a 121 km pipeline, surge tank and diversion structure.

Status:

Approved as a Government Waterwork.

Province: Mpumalanga

Jobs impact:

  • Direct project construction jobs: 1 600

    Projected cost to completion:

    R2,698 billion

    Project Scope:

  • Construction of an abstraction works.

  • Construction of a storage reservoir.

  • Construction of a high lift pump station.

  • Construction of a surge tank and a diversion structure.

  • TCTA to obtain off budget funding (100% commercial)

    Project schedule:

  • Forecast project close out: July 2012


Luvuvhu river government water scheme nandoni steel pipelines

Luvuvhu River Government Water Scheme: Nandoni Steel Pipelines

Project description:

Construction of the five new pipelines to complete Nandoni bulk distribution system and to replace problematic GRP pipelines, including the Valdezia Pipeline

Reasons for under-spending in the 2011/2012 year :

  • The budget of R203 million was allocated before the design had commenced.

  • The appointment of the professional service provider who is responsible for the design and construction supervision was finalized during February 2012, which impacted on the completion of the designs and caused a significant delay.

  • The pipe diameters had to be changed because of the higher water demands due to the later design options (previously 2010 and now 2025).

  • The project was accelerated by awarding the construction of the pipeline to three different contractors.

    Province:

    Limpopo

    Jobs impact:

    About 300 jobs

    Projected cost to completion:

    R750,1 million

    Project Scope:

    This project includes new steel pipelines for

    Xikundu Distribution Scheme and Nandoni

    Distribution Scheme

Project schedule:

  • The Lukalo-Lambani, NN20B and NR6 bulk lines to the north of Nandoni Dam and Xikundu Weir respectively will be completed by end of October 2012.

  • The construction of the Vuwani bulk pipeline has been split into three contracts. The contractors established the site in June 2012 and the work will be completed by May 2013.

    The Valdezia bulk pipeline, is being constructed by DWA Construction: North and will be completed by April 2013.

    Progress/Challenges

  • Updated water demand figures are significantly higher than the previously estimated, requiring larger pipe diameters .

  • Approval for roll-over of R200 incl vat has not yet been received from National Treasury.

  • Risks or challenges

    • Possible delay with supply of pipe materials

    • Cash flow of emerging contractors

    • Labour/Industrial action/strikes or go slows

    • Compliance with stringent environmental conditions

  • Local Water distribution Infrastructure to be implemented by Local Authorities

    Decisions required:

    None


Dam safety rehabilitation programme dsrp

Dam Safety Rehabilitation Programme (DSRP)

  • The Klein Maricopoort Dam near Zeerust and Rust de Winter Dam near Hammanskraal was successfully completed in the fourth quarter to bring the total number of dams completed to four for the financial year.

  • Various rehabilitation design projects are carried out using internal staff and progressing well.

  • Numerous projects are promoting labour intensive methods and maximising job creation.

  • Slow procurement processes are hampering progress where DWA Construction is involved.

  • Shortage of staff doing rehabilitation design internally is delaying progress.

  • Non appointment of consulting engineering PSPs are delaying implementation of various projects.

  • Non appointment of mechanical term contracts are delaying implementation of various work.

  • Unavailability of as-built drawings increases the possibility of variations on contracts


Tcta tender and implementation process

TCTA Tender and implementation process

  • Directive by Minister

  • Project Charter including SED prescripts in terms of legistation

  • Preparation and approval of tender documentation by TCTA Board

  • Public invitation to select preferred bidders (pre-qualification of contractors)

  • Submission of tender documentation to preferred bidders

  • Adjudication of bids

  • Awarding of contract

  • Credit rating obtained from financial markets

  • Secure loan funding

  • Supervision of construction contracts

  • Submission of contractor invoices

  • Monthly certification of work performed to specification


Tcta tender and implementation process cont

TCTA Tender and Implementation Process cont.

  • Project ready for operation

  • Project ready for commission

  • Handover to DWA for operation and maintenance

  • Commencement of defects liability period

  • Commencement of debt repayment period

  • Customer invoiced for water consumption as per capitol unit charge

  • Users, TCTA and DWA meet annually to set tariffs in accordance with agreement


Infrastructure development

END


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