Archive for the 'dams' Category

Despite plentiful water, states draft river rules

"Because UConn runs entirely off of wells, UConn's water consumption has already contributed to drying up a stretch of the Fenton River during the dry season." Photo Retrieved from: ecohusky.uconn.edu

“Water is plentiful in New England, but that’s not stopping several states from drafting regulations to ensure it’s available despite droughts, heat spells and development pressures.

“Connecticut, Massachusetts and Rhode Island rules will regulate so-called stream flows governing how water utilities and businesses can tap into waterways — while trying to allay environmentalists’ concerns over fish habitats and recreation. Maine has had regulations in force for three years.

“”Our state has enough water falling on it that, on paper, there should be enough water for all the users,” said Connecticut Rep. Mary Mushinsky, who backed legislation calling for regulations. “Our system should be sustainable but we’ve never resolved conflicts between users in such a way that it’s predictable or manageable.”

“A long-running problem was resolved just this summer, more than 20 years after Waterbury began diverting water from the Shepaug River for municipal use without releasing surplus water from its reservoir, as demanded by environmentalists.”

Read more: Boston Herald

Can China Save the Beleaguered Yangtze River?

Photo retrieved from: AlterNet.org

“Overfishing, pollution, and habitat fragmentation from dams — including the massive Three Gorges Dam — have brought the Yangtze to its current state. With more dams planned and Chinese officials intoxicated with unbridled economic growth, the future looks just as grim for the Yangtze’s vanishing species. Much of the river basin “will soon be a mere semblance of its natural state, offering few prospects for persistence of what remains of the river’s unique biodiversity,” says David Dudgeon, an aquatic ecologist at the University of Hong Kong.

“All is not yet lost, however. Seasonal fishing bans have given some species a breather. “We can save the remaining ecology of the Yangtze,” argues Xie Songguang, an ecologist at the Institute of Hydrobiology in Wuhan. The potential savior that he and others are counting on is a 10-year fishing moratorium. Such a ban may seem drastic, but it would have a tiny effect on fish markets, as the Yangtze supplies less than 1 percent of China’s freshwater fish production, including aquaculture. A ban is feasible — if the political willpower can be summoned to implement it. With the Yangtze’s ecological health in obvious decline and the economic toll of a ban manageable, the prospects for a moratorium are looking better and better, experts say.”

read more: AlterNet

Pakistan Flooding Because of Farms?

Photo: People wading through flood waters

Photo retrieved from: National Geographic

“The major river engineering is basically a Faustian bargain,” says Daanish Mustafa of King’s College London, recalling the fable in which a man sells his soul to the devil in exchange for a life of luxury. Mustafa is a geographer who has studied the history of Pakistan’s river management.

“Until a few decades ago, there were typically mild floods each summer–the time when the monsoon rainfall hits, and the melt from the snowpack in the Himalaya and Karakoram Mountains is at its peak.

“But now, because humans have sculpted the river and the surrounding natural floodplain and wetlands for farming and other needs, there are fewer floods, but when they hit, they are far worse, said Mustafa.

“There’s not very much space [in the river channel] to absorb all the rainfall,” says Asad Sarwar Qureshi, a water resources expert at the International Water Management Institute (IWMI) branch in Lahore, Pakistan. “We need to get it back into shape, so that it can carry its original capacity.”

“Wetlands along the river’s course used to take up some floodwaters, and the government also used to divert excess water into “no man’s land” during the monsoon season, he says. But those areas have been converted to farmland, he says . . .

“Allowing the river to flood more regularly, and naturally, could help temper the floods and make them more tolerable, say Mustafa and other experts . . .

“Managing Pakistan’s floods is a delicate balance between giving the river more room, and building barriers to protect people and their land.”

read more: National Geographic

New Online Map Plots 140 Large Dams Planned for the Amazon

Photo retrieved from: dams-info.org

“An interactive online database and map launched today graphically illustrates the impacts from more than 140 large dams at various stages of planning in the Amazon Basin. This unique resource, available at www.dams-info.org, uses official sources of information to document the shocking number of dams planned in the Amazon Basin in Brazil, Bolivia, Colombia, Ecuador and Peru, and outlines the devastation these projects would bring to the river and its peoples.

“The Amazon plays a key role in regulating the world’s climate and is an area of extraordinary biodiversity. The largest and arguably the most important river basin in the world, the Amazon contains 60% of the world’s remaining tropical rainforest. However, the more than 140 dam projects described in the database threaten irrevocable damage to the Amazon’s biological integrity and to local populations whose livelihoods depend upon healthy riverine ecosystems.

“Available in English, Spanish and Portuguese, the “Dams in Amazonia” database presents technical and economic data about existing, planned and partly built dams. In the Brazilian Amazon alone, more than 60 dams are planned; neighboring countries such as Peru, Bolivia and Colombia also have plans for massive projects.

“It’s astounding to see the plans that governments and the dam industry have for the world’s most important river basin. If all these projects are built, it would be catastrophic for the Amazon ecosystem and the livelihoods of hundreds of thousands of indigenous people and riverbank dwellers who depend on the river for survival,” said Brent Millikan, Amazon Program Director for International Rivers.”

read more: International Rivers

Water Infrastucture Overlooked In Climate Policy

Photo retrieved from: www.alternet.org

“GWP worked with the government and local communities in Swaziland to rehabilitate an earth dam at KaLanga. Restoring the dam’s broken-down irrigation set-up, constructing sanitation facilities and drinking troughs for cattle, along with raising community awareness and training in water conservation and rainwater harvesting contributed to improving access to water for the more than 9,600 people in the area.

Burkina Faso, where 80 percent of the population depends on agriculture for a living, has invested in the construction of more than 1,500 small dams since 1998. These reservoirs – built at relatively low-cost, often with local communities contributing labour to their construction – are a vital protection against drought.

Most African agriculture is rain-fed, says Grobicki. “As climate variability increases and temperatures rise, water security drops radically. Dams ensure water is available throughout the year.”

The scale and operation of water infrastructure needs to be carefully planned. “Using water from the river for irrigation might benefit a farming community, but it could have damaging effects downstream. That’s why it is important to have shared decision-making. In this process there will be trade-offs, but also shared benefits,” she says.

Other adaptation measures include shifting to more drought-resistant crops and the use of satellite imaging to reveal moisture content of soil and guide farmers’ irrigation efforts: pilot projects in several countries already send out such information via text messages to farmers’ phones.

Water-saving technologies can further maximise the benefits of these strategies. “Drip irrigation offers huge potential for saving water in rural areas, while remote sensing can be used to inform farmers about the moisture content of the soil so they know how much water they need to use to”

Read more: Alternet

Rogue River jumps the gun on dam; Relentless river overwhelms sand spit and flows freely past Gold Ray Dam for first time in 106 years

“The Rogue River on Wednesday unexpectedly flowed freely past Gold Ray Dam for the first time in 106 years when a sand spit collapsed during demolition efforts there, draining the upstream impoundment.

“Construction crews early Wednesday built a temporary dam to a sand spit that isolated Tolo Slough from the rest of the upstream backwaters and drained the slough as part of a project to remove Gold Ray Dam.

“As the slough drained, the spit’s soft sand gave way around 11:15 a.m., sending the entire river through the dam’s freshly cut-out southern end in a torrent of turbid water — almost two weeks earlier than planned.

“And just like that, the Rogue flowed freely through 157 miles of river stretch for the first time since the Ray brothers tamed the Rogue for power generation near Gold Hill in 1904.

“”It’s the way we planned it, but just not this soon,” said Scott Wright, whose River Design Group spearheaded the demolition plans for the $5.6 million project.

“This is what would have gone down in a week and a half,” Wright said. “Mother Nature has its own schedule.”

“As water chugged downstream, it exposed the banks of the main impoundment and the adjacent Kelly Slough for the first time in more than a century, revealing long-lost artifacts resting in the smelly organic ooze of the slough bottom.”

Read more: Mail Tribune

Lake Mead’s Water Level Plunges as 11-Year Drought Lingers

Photo Retrieved from: destination360.com

“Lake Mead, the enormous reservoir of Colorado River water that hydrates Arizona, Nevada, California and northern Mexico, is receding to a level not seen since it was first being filled in the 1930s, stoking existential fears about water supply in the parched Southwest.

“Heightening those concerns are recent signs that the region’s record-breaking, 11-year drought could wear on for another year or longer. July not only saw the lake drop to 1956 levels but also brought cooling temperatures in the Pacific Ocean that signaled a developing La Niña system, historically a harbinger of more hot and dry weather.

“The La Niña “appears to be strong, and it might even last two years,” said Brad Udall, director of the National Oceanic and Atmospheric Administration’s Western Water Assessment program at the University of Colorado.”

Read more: The New York Times

Biggest relocation in China since Three Gorges

“China’s growing thirst for water is driving one of the world’s biggest mass relocations, with 440,000 people leaving their homes to make way for a huge man-made canal project to channel water to drought-prone Beijing.

“An advance party of 499 villagers were moved yesterday from their homes near Wuhan in Hubei province, China’s heartland, in preparation for one of the biggest irrigation schemes in history.

“By the end of September, 60,000 people will have left the area. The remainder will be relocated by 2014, giving up their homes to make way for the South-North Water Diversion Project (SNWD) which will divert water from China’s largest river, the Yangtze.”

Read more: The Independent

Water bond delay: When a Loss is still a victory

Elanor Starmer, Regional Director @ Food & Water Watch

On Monday night, the California legislature voted on a proposal to postpone Proposition 18, the $11 billion water bond, to the 2012 ballot. For bond opponents, there were moments of celebration, as when Assemblymember Jared Huffman (D-Santa Rosa), a bond supporter last year, spoke in favor of pulling the bond from the ballot indefinitely. There were also moments of frustration, as when bond opponent Sandre Swanson (D- Alameda/Oakland) flipped his vote last minute and opted to keep the bond afloat for another two years.

In the end, the push to postpone the bond to 2012 passed by the smallest of margins. It’s not what bond opponents wanted. Ideally, the legislature would have seen the light and scrapped it altogether, or let the voters pull the plug this November so we could get to work on better approaches.

Read More:  SF Gate, City Brights Blog

Resurgence of Large Dams Threatens Tribal People Worldwide, report says

Retrieved from: www.edro.wordpress.com

“Over 70 small hydroelectric dams are being built along the Upper Juruena River in the Amazon state of Mato Grosso in Brazil, according to Survival. The small Enawene Nawe tribe (in the pohoto above) are fiercely resisting these dams. In both 2009 and 2010 the Enawene Nawe did not catch any fish during their annual trapping season–a disaster for a tribe which does not eat meat.

“This also meant they could not properly perform their most important ceremony, yãkwa, which involves the ritual exchange of fish with the spirits. The Brazilian authorities had to deliver emergency food aid in the form of farmed fish to the tribe,” Survival said in the report Serious Damage.

Highlights from the report:

  • Drawing on examples from Asia, Africa and the Americas, Survival’s report Serious Damage exposes the untold cost of obtaining ‘green’ electricity from large hydroelectric dams.
  • A rapid increase in global dam-building is currently underway. The World Bank alone is pouring U.S.$11bn into 211 hydropower projects worldwide.
  • The impact on tribal people is profound. One Amazonian tribe, the Enawene Nawe, has learnt that Brazilian authorities plan to build 29 dams on its rivers.
  • Across the Amazon, the territories of five uncontacted tribes will be affected.

“The Penan tribe in Sarawak face eviction to make way for a dam, and tribes in Ethiopia could be forced to rely on food aid if a dam being built on the famous Omo River is not halted,” Survival said in a news statement. “One man from the Omo Valley’s Kwegu tribe, said, ‘Our land has become bad. They closed the water off tight and we now know hunger. Open the dam and let the water flow.’”

The Ethiopian government is building Gibe III on the Omo river. It will be Africa’s tallest dam and is part of a series of five dams. Gibe I and II have already been built, Survival says in its report. (Read the related blog post: Omo River dam threatens traditional farming and culture in Ethiopia.)

The tribes of the Lower Omo Valley rely on the Omo River to survive in what is an extremely inhospitable environment. During the annual flood, the river deposits fertile silt along its banks, in which the tribes are able to grow vital food crops. Some tribes graze their cattle along the riverbanks, as for much of the year there is little grass elsewhere. The hunter-gatherer Kwegu tribe also fish in the river.

The dam’s constructors say they will release water to create an ‘artificial flood,’ but this cannot do the work of a natural flood in laying down enough rich silt to see the tribes through until the next year. Even if it could, the lives of the Omo Valley tribes would be in the hands of the dam operators, always under pressure to maximize cost-efficiency by reducing or stopping the artificial flood altogether, particularly in years of drought.”

Read More: National Geographic

Despite dam-building, enviros pump money into governor’s water bond

Prop. 18 would built a dam upstream of the Friant Dam on the San Joaquin River. Photo retrieved from: CaliforniaWatch.org

“Gov. Arnold Schwarzenegger’s plan for a $11.4 billion state water bond – conceived last summer in the third year of a crippling drought – is on the bubble, as the San Diego Union Tribune’s copy desk has punned.

“The ballot measure was intended to restore the collapsing ecosystem of the Sacramento-San Joaquin River Delta, promote water conservation and, not incidentally, build a giant dam on the San Joaquin upstream of the mammoth Friant Dam in Fresno County.

“Analysts concerned with California’s fiscal health wondered whether a state already staggering under the burden of a multibillion-dollar deficit should saddle itself with billions in new debt.

“Meanwhile, the dam proposal roused the ire of the Sierra Club and a long list of other green groups. They noted that most western states are demolishing dams out of environmental concerns, not putting up new ones.

“The consumer group Food & Water Watch, which opposes Prop. 18, contends that some green organizations lining up behind the water bond could benefit from its passage.”

read more: California Watch

Trash Threatens To Block Three Gorges Gates In China

Three Gorges

Photo Retrieved from: Huffington Post

“BEIJING — Intense flooding has swept thick layers of garbage down the Yangtze River that are threatening to block the gates of the Three Gorges Dam, state media reported Monday.

“The large amount of waste in the dam area could jam the miter gate of the Three Gorges Dam,” dam official Chen Lei told the official China Daily in an interview, referring to the dam’s huge shipping locks.

“Chen said heavy downpours have pushed unusually large amounts of garbage downstream, including tree branches, plastic bottles and other domestic waste. Nearly 3,000 tons (6 million pounds) of garbage are collected from the dam daily, but there is not enough manpower and equipment to clear it all, he said.

“A layer of garbage about 60 centimeters deep (nearly 2 feet) covering an area of more than 50,000 square meters (about a half million square feet) began to form in front of the dam when the rainy season began in early July, the China Daily reported, citing the Hubei Daily newspaper. In some areas, the trash is so thick that people can walk on it, it said.”

read more: Huffington Post

Running dry on the Colorado

Strontia Dam

Over a hundred dams contain the river water, both inside and outside of the Colorado River Basin. Photo courtesy of Jonathan Waterman; retrieced from: Grist.org

“Climate models for the second half of this century show that up to 70 percent of the snowpack, which supplies the river 90 percent of its water, will disappear. Despite a whopping snowfall and long winter in the Upper Basin, the two biggest reservoirs created by Hoover and Glen Canyon Dams, “Lakes” Mead and Powell, are presently at half of their collective 50-maf capacities and are unlikely to recharge from the winter’s big snowfall after meeting their downstream orders to create electricity and fill irrigation ditches.

“If this nine-year drought continues on beyond a decade, as predicted, life throughout the river basin will be irrevocably changed. First, the sprawling economy created by recreational river and reservoir use throughout the river basin will go bust — crippling scores of towns and small cities along the river. Swimming pools will be drained and lawns browned in Salt Lake City, Utah; Cheyenne, Wyo.; and Albuquerque, N.M. Without Hoover Dam generating relatively clean and rapidly created hydroelectric power, Los Angeles will have blackouts. Without Glen Canyon Dam powering air conditioners, people will abandon sweltering Phoenix, necessitating the construction of more noxious, water consumptive coal plants on the far reaches of the energy grid. Several million acres of farms in the Southwest — including Imperial Valley, the fifth richest agricultural region in the country — will go fallow. Without radical change, citizens in Denver, Colo.; Las Vegas, Nev.; and San Diego, Calif., will have trouble flushing their toilets. Thirty million people will begin losing their drinking water. Finally, thanks to the antiquated Colorado River Compact, lawsuits will lock up what little water remains in what is already known as the most diverted river in the world.

“Like other states in the river basin, Colorado developed around the ability to manipulate water. Financiers knew that “water runs uphill to money,” and so does this ditch, pumped at a one percent grade over the Continental Divide.

“As evidence of this water-as-gold maxim, in Colorado, we cannot legally catch rain in our gutters to water our gardens, because Brad and I live under the doctrine of prior appropriation — or first in time, first in right — meaning that someone below us already owns the water. These rights can be bought and sold separately from whatever rights we’d like to think we own on our roofs, high above and far away from any farmer. In times of drought, the owner of the oldest water right, regardless of distance from the river or its headwaters, reserves the right to use the water. This explains why ranchers and farmers 80 miles to the west in Grand Junction, Colo., or 80 miles to the east in Fort Morgan, Colo., own the water that falls on our Carbondale or Boulder roofs.”

read more: Grist

Brazil tribes allow workers to leave hydro plant

map

Photo retrieved from: BBC News

“Indigenous people protesting against the construction of a hydro-electric plant in the Brazilian Amazon have allowed most workers to leave the site, the Brazilian authorities say.

“A spokesman for the National Indian Foundation said only five employees remained there.

“Nearly 300 protesters occupied the site in Mato Grosso state on Sunday, confining about 100 workers to their barracks.

“They say the plant is being built on an ancient burial ground.

“Some of those occupying the plant were armed with bows and arrows, but there were no reports of any violence or injuries.

“The plant is being built on the Aripuana river, some 400km (250 miles) north of the Mato Grosso state capital, Cuiaba. It is the first phase of a hydro-electric project there and is expected to start operations by January 2011.”

read more: BBC News

Experts worry about increase in deficient U.S. dams

Photo retrieved from: wired.com

“The failure of the 88-year-old dam at northeast Iowa’s Lake Delhi comes when experts have been warning of potentially catastrophic consequences involving thousands of aging U.S. dams.

“The American Society of Civil Engineers, in a report on infrastructure last year, gave a “D” to the nation’s system of 85,000 dams. The average dam is 51 years old, and more than 4,000 are deemed deficient, including some 1,800 that could potentially cause a loss of life if they failed.

“I think we have found over the last five years that the number of dams that states have identified as being deficient or unsafe is growing at a rapid rate, and that rate is much faster than we are able to do repairs,” said Brad Iarossi, a society spokesman and former head of Maryland’s state dam safety program.

“One of the worries is that new development is occurring below many dams, dramatically increasing the consequences of failure, the group said.”

read more: Des Moines Register

Amazon Tribesman Seize Hydroelectric Plant, Workers In Protest

“Mato Grosso, Brazil (AHN) – Amazonian tribesmen protesting the construction of a hydroelectric plant have seized the facility. Some 300 members of at least six different Amazon tribes armed with bows and arrows took over the Dardanelos power plant in Mato Grosso state Sunday, preventing 100 workers from leaving.

“The protestors, described as being in full war paint, are demanding officials of the Aguas da Pedra power company compensate them and is asking for talks with company executives and government officials. They are seeking $6.3 million in compensation for cultural and social losses.”

read more: All Headline News

Water Dispute Increases India-Pakistan Tension

The Kishenganga dam project in Kashmir is a crucial part of India’s plans to feed its rapidly growing but power-starved economy. Photo retrieved from: NY Times

“BANDIPORE, Kashmir — In this high Himalayan valley on the Indian-controlled side of Kashmir, the latest battle line between Indiaand Pakistan has been drawn.

“This time it is not the ground underfoot, which has been disputed since the bloody partition of British India in 1947, but the water hurtling from mountain glaciers to parched farmers’ fields in Pakistan’s agricultural heartland.

“Indian workers here are racing to build an expensive hydroelectric dam in a remote valley near here, one of several India plans to build over the next decade to feed its rapidly growing but power-starved economy.

“In Pakistan, the project raises fears that India, its archrival and the upriver nation, would have the power to manipulate the water flowing to its agriculture industry — a quarter of its economy and employer of half its population. In May it filed a case with the international arbitration court to stop it.

“Water has become a growing source of tension in many parts of the world between nations striving for growth. Several African countries are arguing over water rights to the Nile. Israel and Jordan have competing claims to the Jordan River. Across the Himalayas, China’s own dam projects have piqued India, a rival for regional, and even global, power.”

read more: NY Times

Amazon Mega-Dam Deemed Unfeasible in Risk Scenario Analysis

Proposed Dams, Xingu Basin

Photo retrieved from: International Rivers

“Questions over the inefficiency of Belo Monte, which will produce an average of only 39 percent of its 11,233 megawatt installed capacity due to seasonal fluctuations in the river’s flow, indicate that the project’s heavy financial risks could only be solved by building additional reservoirs upstream.  The risk scenario report concludes that “construction of Belo Monte now will lead to an entirely foreseeable – some would say planned – crisis, which will exert enormous pressure for the construction of new dams upstream of Belo Monte to store water and enable the dams’ capacity to be fully used.”  Critics have long maintained that Belo Monte is only the first of a series of planned dams on the Xingu.

“Given uncertainties over the project’s economic viability, the Brazilian government has announced a series of generous perks to lure investors, including subsidized loans, tax breaks and public-guaranteed insurance.  The National Development Bank, BNDES, has committed to finance up to 80 percent of Belo Monte’s US$17 billion price tag, with interest rates of a mere 4 percent, a generous grace period and 30 years for repayment in what will be the largest loan in the bank’s history.  The bank has already issued subsidized credit totaling  US$8 billion (R$14 billion) and 50 percent tax breaks over 10 years to increase the private sector’s involvement in Belo Monte’s auction on April 20th and to entice European turbine suppliers Alstom, Andritz, and Voith-Siemens in signing with the consortium.  BNDES has repeatedly been charged with having weak social and environmental safeguards, a lack of transparency in lending decisions, and deficient public oversight mechanisms.

“Belo Monte and other mega-dams in the Amazon are not necessary.  Studies have shown that by investing in energy efficiency and alternative sources of energy, Brazil could avoid the need for huge dams in the Amazon and save billions in the process,” said Brent Millikan, Amazon Program Director at International Rivers. “This project is a government handout to large construction and energy companies, several of which are major funders of political campaigns, at the expense of the Brazilian taxpayer, indigenous people, riverbank dwellers, small farmers and the Xingu River’s incredible biodiversity.”
read more: International Rivers

Metro water woes traced to dry Angat

Retrieved from: img.youtube.com/vi/ddXqGxenfSc

“If only rains pour in Bulacan instead of Metro Manila.

“Water concessionaires Maynilad Water Services Inc. and Manila Water Co. are facing dwindling shares of water from Angat Dam, which is hardly getting enough replenishment from the recent rains after a long dry spell.

“Maynilad has resorted to water rationing. Water disruptions in its network started on July 16 and were expected to continue till July 23.

“Manila Water said there was no reduction yet on the supply and pressure in the Ayala-led company’s area.

“Angat Dam, which supplies more than 90 percent of Metro Manila’s domestic water supply, had an elevation of 157.59 meters as of 4 p.m. on Sunday, way below the critical level of 180 meters and lower than the dam’s lowest level of 158.15 meters in September in 1998, an El Niño year.”

Read more: The Inquirer

Water users holding key to desalination plants

Retrieved from: thumbs.dreamstime.com

“FURTHER desalination plants to meet the booming southeast corner’s water needs may not be needed for another 20 years.

“High rain levels and frugal household water use have allowed the Government to postpone its planned construction dates for two new desalination plants.

‘In its new water planning blueprint, the Queensland Water Commission has estimated the plants would be needed by 2021 if consumption levels rise to 230 litres per person per day. But the plants could be delayed until as late as 2032 if consumption meets the 200 litres-per-day target and rain continues to fall at traditional levels.

“The QWC still plans to acquire the two priority sites for the plants, at Lytton near the mouth of the Brisbane River and at Marcoola on the Sunshine Coast.

“There are also two reserve sites, one allowing the existing Tugun facility to be duplicated and the other on Bribie Island.”

Read more: The Courier Mail