{"id":50277,"date":"2023-04-04T06:00:53","date_gmt":"2023-04-04T04:00:53","guid":{"rendered":"https:\/\/novanews.co.za\/peoplespost\/dredging-implemented-to-enhance-biodiversity-at-lower-silvermine-wetlands-20230404\/"},"modified":"2025-03-19T20:46:56","modified_gmt":"2025-03-19T18:46:56","slug":"dredging-implemented-to-enhance-biodiversity-at-lower-silvermine-wetlands-20230404","status":"publish","type":"post","link":"https:\/\/novanews.co.za\/peoplespost\/dredging-implemented-to-enhance-biodiversity-at-lower-silvermine-wetlands-20230404\/","title":{"rendered":"Dredging implemented to enhance biodiversity at Lower Silvermine wetlands"},"content":{"rendered":"\n

A dredging project at the Lower Silvermine wetlands is set to have immense benefits for biodiversity. <\/p>\n\n\n\n

The project, which is expected to commence this week, will include manual reed clearing, mechanical clearing and opening of the river channel and Leopard Toad pond. <\/p>\n\n\n\n

Alex Lansdowne, deputy chair of the mayoral advisory committee on water quality in wetlands and waterways, says natural processes and nutrient inflow from various run-off sources has resulted in excessive reed growth and the siltation of the wetlands over a 20 year period. <\/p>\n\n\n\n

\u201cI visited Fish Hoek with City of Cape Town officials, water quality advisory committee members, as well as local community stakeholders as we prepare to dredge the Lower Silvermine wetlands. <\/p>\n\n\n\n

\u201cCity of Cape Town officials from Parks, Environment and Catchment have collaborated to develop a method statement to guide this operation with ecological sensitivities in mind.\u201d<\/p>\n\n\n\n

\n
\"\"

<\/p>\n

Dredging work at the Lower Silvermine Wetlands is expected to be completed before the start of winter. PHOTO: Supplied<\/div>\n
<\/span><\/span><\/div>\n<\/div>\n<\/div>\n\n\n\n

He further explained that natural siltation, run-off from a golf course upstream and minor sewage spills have resulted in the \u201ceutrophication of the water\u201d which has encouraged reed growth. <\/p>\n\n\n\n

\u201cThe endangered Western Leopard Toad occurs here and the opening of the ponds and channels will create more breeding habitat for this threatened species. <\/p>\n\n\n\n

\u201cA variety of threatened fynbos plant species occur here including the Cape Flats Conebush (Leucadendron levisanus) which is classified as critically endangered on the red list of South African plants.\u201d <\/p>\n\n\n\n

The dredging project will be conducted under the exemptions granted through the stormwater maintenance management plan for the City of Cape Town with larger dredging projects planned for Milnerton Lagoon and Zeekoevlei.<\/p>\n\n\n\n

\u201cThe clearing of the reed overgrowth will increase line of sight which will improve security and use for the local community and user groups.\u201d<\/p>\n\n\n\n

He added that all dredging work is expected to be completed by the end of the financial year and before the onset of winter rains.<\/p>\n\n\n\n

According to the City, the area to be dredged is approximately 79 000 square metres, starting from Main Road until the major wooden footbridge that runs between Hilton Road and Carlton Road. <\/p>\n\n\n\n

The City\u2019s Catchment, Stormwater & River Management (CSRM) branch is investing approximately R7 million into the project. <\/p>\n\n\n\n

Acting Mayco member for water and sanitation Siseko Mbandezi says over time, the area had become concentrated with both pollution and alien invasive vegetation.<\/p>\n\n\n\n

As such it is crucial for dredging to take place.<\/p>\n\n\n\n

\u201cThe Lower Silvermine wetlands has been used as a reference location as to what urban waterways should look like \u2013 an interface between the environment, people and well-being. <\/p>\n\n\n\n

\u201cDredging work starts on the first week of April to reduce the risk of flooding for residents of the surrounding areas. This work is being done as part of ongoing river maintenance and programmes to improve inland water quality.<\/p>\n\n\n\n

\u201cThe dredge will remove the excess silt and sludge from any sewage spills, wildfire erosion and stormwater runoff. This will then reset the water capacity of the ponds back to their original levels. <\/p>\n\n\n\n

\u201cThe polluted top layer of sediment is being removed, leaving cleaner sand underneath.\u201d <\/p>\n\n\n\n

Phase one of the dredging process is expected to be completed by Friday 30 June.<\/p>\n","protected":false},"excerpt":{"rendered":"

A dredging project at the Lower Silvermine wetlands is set to have immense benefits for 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implemented to enhance biodiversity at Lower Silvermine wetlands | People's Post<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/novanews.co.za\/peoplespost\/dredging-implemented-to-enhance-biodiversity-at-lower-silvermine-wetlands-20230404\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Dredging implemented to enhance biodiversity at Lower Silvermine wetlands\" \/>\n<meta property=\"og:description\" content=\"A dredging project at the Lower Silvermine wetlands is set to have immense benefits for biodiversity.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/novanews.co.za\/peoplespost\/dredging-implemented-to-enhance-biodiversity-at-lower-silvermine-wetlands-20230404\/\" \/>\n<meta property=\"og:site_name\" content=\"People's Post\" \/>\n<meta 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Lansdowne, deputy chair of the mayoral advisory committee on water quality in wetlands & waterways, visited the Lower Silvermine Wetlands together with city officials. 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