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Date 2010
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Water under the bridge?
22 December, 2010
Ten years have passed since publication of the World Commission on Dams’ final report. Suzanne Pritchard spoke to some of those involved in this revolutionary process in the big dams debate. But is WCD still topical now in 2010, or is it all just water under the bridge?

Facing reality on dam development
22 December, 2010
The World Commission on Dams report overlooked the benefits of and improvements made by dams to society, says ICOLD president Jia Jingsheng. In addition, its guidelines were somewhat idealistic. However ten years on, ICOLD believes that the negative impacts of project development should never be suppressed, overlooked or underestimated. The construction and operation of dams and hydropower projects can no longer be considered as a purely scientific and technical matter. A wide range of other aspects are involved today

Installing the Turbinator
22 December, 2010
CleanPower has installed its first Turbinator at the Hegset dam in Norway. The Turbinator combines an axial turbine and generator in a compact and sealed machine, and can utilise lost hydropower potential from environmental outlets

Historic beacon of green power
22 December, 2010
James A Besha, president of Albany Engineering Corporation in the US, gives an historical insight into the rehabilitation of the Stuyvesant Falls hydro project in New York State

Sayano Shushenskaya accident – presenting a possible direct cause
22 December, 2010
The cause of a fatal accident that occurred on 17 August 2009 at the Sayano Shushenskaya Dam and powerhouse in Southern Siberia has never fully been revealed. In this peer-reviewed paper, F A Hamill presents a hypothesis of the underlying direct cause of the accident

Five in focus – new pumped storage schemes
22 December, 2010
IWP&DC presents details on five important pumped storage schemes currently under development or recently commissioned worldwide

Old concept, new opportunities
22 December, 2010
The conventional benefits of pumped storage, coupled with its modern application of integration with intermittent renewable energy technologies, are fuelling its development. Purushottam Uniyal of business intelligence provider GlobalData reports

What lies beneath?
29 November, 2010
Underwater trees in reservoirs can pose a multitude of problems worldwide. Removal prior to flooding has never been as simple as it sounds, while harvesting afterwards has long seemed like science-fiction. However, Canadian company Triton Logging has gained over ten years of experience in developing underwater forestry on a commercial scale.

Investigating Val Noci
29 November, 2010
Mattia Pinotti and Adriano Lais give an indepth look at physical model investigations which were carried out on the morning glory spillway at Val Noci dam in Italy

Fault finding at Martis Creek Dam
29 November, 2010
Martis Creek Dam in the US is classified as a high-risk structure due to its history of excessive seepage and flooding risks associated with dam failure. During dam inspections, LiDAR technology helped to reveal a previously unrecognised active fault which could be the seismic source for future earthquakes. By Bruce Hilton, Ronn Rose and Lewis Hunter

Standard approach to turbine R&D
29 November, 2010
A US firm looking at a shaft-based system as a new approach to pumped storage has modified the concept and is also designing small, standardised pump-turbines for mass production. Report by Patrick Reynolds

Building Jinanqiao Dam
29 November, 2010
Yong-Wen Hong and Cheng-Bin Du present details on the design and construction of the Jinanqiao RCC gravity dam, a 160m high structure located in China’s Yunnan Province, in a region of high seismicity

New spillway for Ulley dam
29 November, 2010
Rehabilitation work at Ulley dam in Rotherham, UK, was officially opened on 25 June 2010, exactly three years to the day since heavy rain caused the original overflow structure to collapse and left the Victorian dam in danger of failure. At a cost of almost US$6M, innovative engineering works have included the addition of a new spillway in the centre of the dam.

Glorious spillways
29 November, 2010
IWP&DC presents a pictorial on the morning glory type spillway, as featured at Monticello dam in the US and Ladybower dam in the UK

Seeing is believing
29 November, 2010
Greater project transparency can quash community fears about the development of hydro projects, as the Compliance Advisor Ombudsmen discovered at the Allain Duhangan project in India

A quiet revolution
29 November, 2010
UK renewable energy legislation has driven innovative new applications of hydropower technology. Samantha Wood from civil engineering contractor JN Bentley reports

Taking care of turbines
29 November, 2010
A new technology developed by Brazilian company CARE Electric utilises river flows and allows for installation in practically any location, regardless of river width, depth and current

ROT work in Macedonia
28 October, 2010
Hydropol has been working on a rehabilitate-operate-transfer (ROT) project which covers seven hydropower plants in Macedonia. Tomáš Cerný gives an insight into the work which has been undertaken

The dredging option
28 October, 2010
Is dredging the solution to sedimentation problems at South Fork Rivanna reservoir in the US? The answer isn’t as clear-cut as it seems. Suzanne Pritchard reports

Challenges at Chasewater
28 October, 2010
Addressing the twin threats of internal erosion and overtopping at Chasewater dam in the UK has presented Lichfield District Council with a multitude of challenges. The search for an improvement scheme which not only addresses safety issues but is practicable and affordable has been a big ask for a small council with limited funds and no in-house engineering expertise. Neil Turner and Lizzie Thatcher report

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