Verlede week het die bespiegeling nog hoog geloop oor wat by die Bergrivier- en Wemmershoekdamme afgespeel het in die aanloop tot die oorstromings gedurende Junie wat die vallei verswelg het. In die nasleep van die ramp was die bestuur van sluise \u2019n groot fokuspunt.<\/p>\n\n\n\n
Die Stad Kaapstad se burgemeesterskomiteelid vir water en sanitasie, Zahid Badroodien, het ter inleiding in sy terugvoer aan Paarl Post <\/span> beklemtoon die Wemmershoekdam word vir waterberging bedryf \u201cen nie vloedbeheer soos die geval is vir die nabygele\u00eb Bergrivierdam nie\u201d. <\/p>\n\n\n\n \u201cDie [Wemmershoek]dam voorsien drinkwater aan dele van Stellenbosch-munisipaliteit, insluitend plase onmiddellik stroomaf asook groot dele van Drakenstein-munisipaliteit (Paarl en Wellington) en die Stad Kaapstad. Die dam word dus bedryf om waterberging en opbrengs te maksimeer,\u201d illustreer Badroodien.<\/p>\n\n\n\n Die Wemmershoekdam het nie \u2019n oorloopwal nie, meen hy, maar gebruik wel sluise om water vry te laat sodra die dam volle toevoervlak (100% vol) bereik. <\/p>\n\n\n\n Die dam het tydens afgelope oorstromings, volgens Badroodien, nie oorgeloop nie, aangesien dit onder 100% vol was. <\/p>\n\n\n\n \u201cDie dag voor die geleentheid op 13 Junie was die berging [van die dam] 99,2%. Die dam word bedryf om waterberging te maksimeer. Dit is opmerklik dat die Bergrivierdam en baie ander besproeiingsdamme ook oorgeloop het tydens die 14 Junie- oorstromings wat wye dele van die Wes-Kaap, en nie net die Drakenstein-vallei, ervaar het nie.\u201d<\/p>\n\n\n\n Hy bieg egter dat die omstandighede van die huidige waternetwerk wel ruimte vir verbetering toon.<\/p>\n\n\n\n \u201cGroot gebiede wat in die Bergrivier dreineer, gaan ook nie deur die Wemmershoek- of Bergrivierdam nie en daar kan moontlik terreine wees vir die bou van vloedbeheerdamme.\u201d<\/p>\n\n\n\n Op die vraag of die bestuur by Wemmershoekdam baie van weervoorspellings afhanklik is, antwoord Badroodien dat die werking van Wemmershoekdam nie op langafstandre\u00ebnvalprojeksies staatmaak nie. <\/p>\n\n\n\n \u201cWanneer die dam opvul, loop dit oor in die Wemmersrivier soos alle ander damme,\u201d s\u00ea hy.<\/p>\n\n\n\n Hy s\u00ea voorts die werking van die sluise is geoutomatiseer en slegs een van die drie hekke is tydens hierdie beduidende storms in werking gestel.<\/p>\n\n\n\n \u201cWateroorlope is eweredig aan invloei van die natuurlike takriviere in die dam bo die 100%- volle vlak. Daar is ook geen gedefinieerde buffervlakke vir wateropgaardamme nie.\u201d<\/p>\n\n\n\n Die Wes-Kaap ervaar tans in \u2019n sopnat winter. <\/p>\n\n\n\n Plaasdamme is vol, die grond is versadig en riviervlakke loop hoog; word dit in ag geneem wanneer damvlakke aangepas word?<\/p>\n\n\n\n \u201cDie bedryfsre\u00ebl word nie gedurende die winter aangepas nie. Wanneer meer re\u00ebn ontvang word, sal die dam oorloop om te verseker dat die grondwal nie oorgehaal word nie.\u201d<\/p>\n","protected":false},"excerpt":{"rendered":" Verlede week het die bespiegeling nog hoog geloop oor wat by die Bergrivier- en Wemmershoekdamme afgespeel het in die aanloop tot die oorstromings gedurende Junie wat die vallei verswelg het. In die nasleep van die ramp was die bestuur van sluise 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