User:Sengkang/Sketchpad/Marina Barrage
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[edit] 19 Jun 2004
The Straits Times (Singapore)
Green light for major Marina water project; Benefits will be water source, flood barrier, activities hub
June 19, 2004 Saturday
Alexis Hooi
PLANS to build a wall across the Marina Channel to create a mini-reservoir have been given the green light.
The Public Utilities Board (PUB) will call for the tender for the project, estimated to cost from $250 million $300 million, on Friday.
This Marina Barrage will not only help create a new water source in five years' time, it will also act as a tidal barrier, to check flooding in such low-lying areas as Chinatown, Boat Quay, Jalan Besar, Farrer Park and Geylang.
In addition, the basin will give recreational activities a boost, with sailing and dragon-boat racing being envisaged for it.
Announcing the plan and the possibilities yesterday, Environment Minister Lim Swee Say said the dam was part of Singapore's aim of ensuring its long-term water supply.
'This is going to be a three-in-one project, not just for water supply, but also for flood control and as a major lifestyle attraction in our city.
'It is truly a symbol of integrated planning for sustainable development,' he told about 250 industry and government officials attending the opening of Singapore's third Newater plant in Seletar, after those in Kranji and Bedok.
Details of the design and location of the barrage, including how it will affect vessels entering the bay, will be announced on Monday.
Meanwhile, Singapore's daily Newater supply will reach 20 million gallons, with the opening of the Seletar plant.
It forms just a small proportion of the 300 million gallons Singapore uses a day but it is a factor in helping to slow any drastic increase in water prices, said Mr Lim.
'It's important that we price all our water resources, including Newater, correctly, so that the industries will value every drop,' he added.
A fourth Newater plant at Ulu Pandan, scheduled for completion by 2006, will see the reclaimed water exceeding 10 per cent of the country's water demands, said Mr Lim.
The Ulu Pandan facility will provide more water than all the existing three plants, and will be privately-owned.
Said Mr Lim: 'In this way, we believe that we can tap on the expertise and resources of the private sector to keep our production capacity at the leading edge and at the same time at the lowest cost possible.'
Water treatment company Hyflux, which designed and built the Seletar plant, is one of the players which bid for the Ulu Pandan tender.
Chief executive Olivia Lum told The Straits Times yesterday that the company's Kristal300 ultrafiltration membranes - used in Seletar - cost substantially less than the microfiltration ones used in the first two plants.
'Since they are locally-made, we're able to make overall costs very competitive,' she said.
WATER SUPPLY UTILITIES (90%); WATER & WASTEWATER MANAGEMENT (90%); BOATING & RAFTING (78%); APPROVALS (78%); FLOOD CONTROL (76%); WATER QUALITY (76%); TRAVEL HOSPITALITY & TOURISM (75%); MFG OUTPUT (74%); MANUFACTURING OUTPUT (74%); PLANT CAPACITY (71%); SUSTAINABLE DEVELOPMENT (69%);
MARINA CHANNEL (68%);
SECTION: Prime News
LENGTH: 446 words
LOAD-DATE: June 20, 2004
LANGUAGE: ENGLISH
[edit] 22 Jun 2004
The Straits Times (Singapore)
Newater high-tech for city reservoir; Project to be completed by 2007 will see river and canal water made as clean as that from the protected reservoirs
June 22, 2004 Tuesday
Alexis Hooi
SINGAPORE'S newest reservoir, to be built in the business district, will use the technology developed in producing Newater to tap into the waters of the canals and rivers in the city area.
The advanced membrane technology will make the water that flows into it from, among others, the Singapore River and Rochor Canal as pristine as that from protected reservoirs like MacRitchie.
This assurance was given yesterday by the Public Utilities Board when it announced the tender for a project to turn Marina Basin into Singapore's 15th reservoir.
It will be created by the building of a dam across the 350m-wide Marina Channel, estimated to cost from $250 million to $300 million.
This Marina Barrage project to be completed in 2007 will keep seawater out of Marina Basin, which will be fed from such freshwater sources as the Geylang and Kallang rivers.
It will increase Singapore's water catchment area from half to two-thirds of the island.
The project's director, Mr Yap Kheng Guan, credited the microfiltration filters and semi-permeable membranes, used in the three Newater plants in Kranji, Bedok and Seletar, for helping to give birth to the reservoir.
The existing reservoirs use conventional methods, including sedimentation and coagulation processes, to produce water for drinking.
But even with the new technology, Mr Yap stressed the importance for each and every Singaporean to keep the channels clear.
'If somebody were to litter as far up as Ang Mo Kio, that piece of litter would eventually find its way into the reservoir,' he said.
The new technology is unlikely to result in an increase in the price of water, said Mr Yap.
The dam at the Marina Basin will be built with a network of floodgates and pumps to prevent flooding and to encourage water sports, prompting PUB to call it the 3-in-1 Marina Barrage.
It will also have inflatable rubber dams and steel gates to act as a tidal barrier during high tides.
So when the tide is high and the skies open up, excess water will be pumped out into the sea, to keep the city's low-lying areas from flooding.
However, what makes the project unique, said PUB officials, is the range of recreational water sports it can support.
As Clifford Pier and the ferries that use it are relocated to Marina South, the area would be freed up for the staging of waterfront events and performances, as well as international watersport competitions.
The smooth waters of the basin would also attract such leisure pursuits as waterskiiing and windsurfing, the officials added.
To give it a boost, the PUB will build, for example, a boat hoist to lift vessels to and from the open sea and the reservoir.
Watersport enthusiasts like Michelle Wang are delighted.
Said the 28-year-old sales manager: 'It'll be great to waterski there in the calm waters and with Singapore's city skyline as the backdrop, instead of in the open sea in Pasir Ris.'
RIVERS (91%); WATER SUPPLY UTILITIES (90%); WATER & WASTEWATER MANAGEMENT (90%); CANALS & WATERWAYS (89%); DAMS & RESERVOIRS (78%); FLOOD CONTROL (75%); WATER QUALITY (67%);
SECTION: Prime News
LENGTH: 487 words
LOAD-DATE: June 21, 2004
LANGUAGE: ENGLISH
[edit] 30 Aug 2007
Aug 30, 2007 Pumping up for year-end finish ST PHOTO: LIM SIN THAI One of the world's largest pumping facilities is currently being installed at the soon-to-be completed Marina Barrage.
Each of the seven 28-tonne pumps, specially constructed for the facility, has the capability to drain an Olympic-sized pool in a single minute.
They will kick into action when heavy rains coincide with high tide, and pump excess water into the sea.
This will mean fewer floods in areas like Chinatown and Little India once the barrage starts operating at the end of the year.
[edit] 30 Aug 2007 2
Aug 30, 2007 Flood fighter
The $226 million Marina Barrage, which will convert Marina Bay into a freshwater reservoir and help alleviate flooding in the area, is near completion and on track to start operating by the year end. When done, it will mean some of Singapore's flood-prone areas, such as Chinatown and Serangoon, will have some respite, even when high tide coincides with heavy rains. Work is now under way to put in one of the world's largest pumping facilities into the structure to ensure that.
[edit] 30 Aug 2007 3
The Business Times Singapore
August 30, 2007 Thursday
Water control
SECTION: SINGAPORE
LENGTH: 112 words
MARINA Barrage, the $226 million project that is currently being built across the Marina Channel, will help prevent flooding in Singapore's low-lying areas, while the new reservoir - Singapore's 15th - will provide an additional source of water. The reservoir will also serve as an arena for watersports. The seven drainage pumps, housed in the barrage, make it the world's biggest pumping facility. The pumps will allow for flood control by pumping water out in the event of heavy rains and high tide. Two pumps were installed yesterday. All the pumps are expected to be installed by end September but the engineering of Marina Barrage itself should be completed by year end.
[edit] 30 Aug 2007 4
lianhe zaobao, 30-8-07 世界最大抽水系统 滨海堤坝开始安装
● 谭德婷
公用事业局从上个月起展开安置滨海堤坝水泵的工程，这意味着整个滨海堤坝的建筑工程进入新的里程碑。
滨海堤坝（Marina Barrage）的抽水系统共有七个“霸级”水泵，是排水量居全球之冠的抽水系统。如果同时启动这七个水泵的话，每秒钟将总共排放280立方米的水量。
若以单一水泵的排水量计，滨海堤坝的水泵则是目前世界第二大的。每个水泵可在一秒钟内排放40立方米水量，约等于在一分钟之内排放完一个奥林匹克型泳池的水。
世界排水量最大的水泵在荷兰阿姆斯特丹，其排水量为每秒50立方米。
公用事业局3P网络署署长叶庆元说，滨海堤坝已完成了82%的工程，到了今年底，整个建造工程就大功告成。至于弧形水库大楼内部的装潢和美化工程，将在明年7月竣工。
公用事业局已在上个月装置了三个水泵，昨天安置两个，剩余的两个将在下个月安装。一旦连同装置水闸在内的建造工程完成，当局就能开始着手把滨海湾海水抽换成雨水，形成淡水湖。
不过，把原本是咸水的滨海内湾逐渐换为疏导自滨海和加冷盆地的雨水，并成为首个坐落在市区的蓄水池，还须要数年的时间。
叶庆元昨天带领媒体参观水泵的安置过程时说，水泵由一家荷兰公司设计。在设计过程中，他们考虑到新加坡这个赤道边缘的城市雨水多，水泵不只必须够大，而且必须能在热带地区操作正常，及时抽水。
同时启动七个水泵机会微乎其微
每一个水泵直径3.2米，高7.5米，重28公吨，相等于400个男性的体重，在把它装置到水泵井的过程中，得动用可支撑500公吨重量的高吊杆起重机。
但是，如果要期望七个水泵同时启动，机会是微乎其微的。
叶庆元估计，以新加坡的天气状况，一年平均会有四五次须要启动水泵，而且只须动用两个。只有在非常特殊的状况下，才会同时启动七个水泵。例如，1978年曾经发生过24小时降雨量为512毫米的豪雨，在那种情况下，便要开动所有七个水泵。
根据气象署的资料，1978年12月2日当天记录的24小时降雨量为512毫米，是本地降雨量最高的一天。 叶庆元解释说，只有在遇上豪雨而又正值海水高涨，设在水库大楼里抽水站的水泵才会启动，把蓄水池里多余的雨水排入大海；如果下豪雨时海水低潮，单靠水闸自动放下，任雨水流入大海，便能避免蓄水池内水位过高。
如果以本岛前天下了7小时的滂沱大雨为例，就还不须要动用水泵，只须把水闸放下即可。
滨海堤坝的工程浩大，讲求精确，单是把水泵装置到水泵井里，就已是一大挑战。叶庆元说，水泵必须稳稳当当地安放在底环（foundation ring）上，其所能承受的误差，只是区区0.6毫米。
但他说，能参与这样庞大而又复杂的工程，是工程师梦寐以求的。
建造滨海堤坝的计划是在1987年由当时担任总理的内阁资政李光耀首次提出。公用事业局经过十多年研究后，在前年动工。工程耗资2亿2600万元兴建，完成后将能发挥三项功能，即把滨海内湾围成蓄水池，成为为国人提供多一成食水的来源；防止市区低洼地区，如牛车水、惹兰勿刹、花拉公园和芽笼发生水患，以及成为国人与游客消闲的新去处。
滨海堤坝工程还包括一道长350公尺的堤坝，共有9个冠形铁闸（crest gate），目前已完成第一阶段，共装置了4道水闸。第二阶段装置另5道水闸的工程正如火如荼进行。
另一方面，水库大楼除了有抽水站，也设有访客中心，游人可通过展览了解滨海堤坝工程，同时从玻璃窗透视由电脑控制的抽水站运作情况。大楼的楼顶将发展成绿草如茵的公园，与毗邻的滨海湾植物园相辉映。
