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DWA IRRIGATION SCHEMES

DWA IRRIGATION SCHEMES. SELECT COM ON ENVIRON AFFAIRS 20 October 2009 By: Lehasa Moloi (Pr.Eng). Presentation Overview. National Water Resource Infrastructure Irrigation Schemes 2.1 Southern Cluster (EC,WC) 2.2 Limpopo (Tzaneen) 2.3 Northwest (Hartbeespoort) 2.4 Other Irrigation Schemes

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DWA IRRIGATION SCHEMES

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  1. DWA IRRIGATION SCHEMES SELECT COM ON ENVIRON AFFAIRS 20 October 2009 By: Lehasa Moloi (Pr.Eng)

  2. Presentation Overview • National Water Resource Infrastructure • Irrigation Schemes 2.1 Southern Cluster (EC,WC) 2.2 Limpopo (Tzaneen) 2.3 Northwest (Hartbeespoort) 2.4 Other Irrigation Schemes 3. Conclusion 2

  3. 1. National Water Resources Infrastructure • The NWRI Branch in DWA develops new water resources infrastructure and operates and maintains existing assets for the storage and supply of raw water. • Existing infrastructure is grouped into four clusters 3

  4. Spatial location of assets 4

  5. 2. Irrigation Schemes • Most irrigation schemes are operated and maintained by Water User Associations (WUAs)/Irrigation Boards • DWA provides capital for major refurbishment or rehabilitation as the schemes are still owned by the Department • DWA operated schemes are for multi–users: domestic/industrial and irrigation • Irrigation water released from dams into rivers 5

  6. 2.1 Southern Cluster (EC, WC) 6

  7. 2.2 LIMPOPO (Tzaneen) 7

  8. 2.3 North West (Hartbeespoort) 8

  9. 2.4 Other Irrigation schemes • Skoonspruit and Mooirivier irrigation schemes - Potch • Koppies Irrigation scheme – dysfunctional • Schemes operated by WUAs: Vaalharts, Orange Riet, Sand Vet, LORWUA, Sundays River Valley, etc 9

  10. 3. Conclusion • Most irrigation schemes have reached end of their useful lives • Major rehabilitation work required • Water tariffs not adequate to fund capital rehabilitation of schemes • Water losses from canals 10

  11. Thank you 11

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