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Two boys and a dog find a place where the stream meets the sea. Can they build a dam to hold back the water? There are stones and driftwood and seaweed - is it enough to stop the stream?
The first year of a beaver kit's life is full of new discoveries and dangers. But the most important lesson the kit learns is how to take care of his family's home. The lodge where he lives is protected by a long dam that many beavers have worked to build over the years. As the kit grows up, he helps repair and add to the family dam—and begins to build a life for himself. Set at what is believed to be the world's longest beaver dam, Build, Beaver, Build—by award-winning author Sandra Markle—provides a glimpse of beaver life, seen through the eyes of one young beaver and his family.
In the early 1960s, thousands of construction workers and their families came to Oroville, in Northern California, to help build the largest earth-fill dam in the world. Located nine miles northeast of town, the Oroville Dam would be the cornerstone of the California State Water Project, which would provide flood control, electric power, recreation, and water to California residents. The project was so massive that it would reinvent the look of much of the area; require the building of roads, bridges, and railroads; inundate much of the area's history under hundreds of feet of water; and greatly effect the lives of the residents of Oroville. The successful completion of the project came at a price--34 construction workers died.
Introduces the physical characteristics, habits, and natural environment of the North American beaver.
Big dams built for irrigation, power, water supply, and other purposes were among the most potent symbols of economic development for much of the twentieth century. Of late they have become a lightning rod for challenges to this vision of development as something planned by elites with scant regard for environmental and social consequences—especially for the populations that are displaced as their homelands are flooded. In this book, Sanjeev Khagram traces changes in our ideas of what constitutes appropriate development through the shifting transnational dynamics of big dam construction. Khagram tells the story of a growing, but contentious, world society that features novel and increasingly efficacious norms of appropriate behavior in such areas as human rights and environmental protection. The transnational coalitions and networks led by nongovernmental groups that espouse such norms may seem weak in comparison with states, corporations, and such international agencies as the World Bank. Yet they became progressively more effective at altering the policies and practices of these historically more powerful actors and organizations from the 1970s on. Khagram develops these claims in a detailed ethnographic account of the transnational struggles around the Narmada River Valley Dam Projects in central India, a huge complex of thirty large and more than three thousand small dams. He offers further substantiation through a comparative historical analysis of the political economy of big dam projects in India, Brazil, South Africa, and China as well as by examining the changing behavior of international agencies and global companies. The author concludes with a discussion of the World Commission on Dams, an innovative attempt in the late 1990s to generate new norms among conflicting stakeholders.
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Let the Water Do the Work is an important contribution to riparian restoration. By "thinking like a creek," one can harness the regenerative power of floods to reshape stream banks and rebuild floodplains along gullied stream channels. Induced Meandering is an artful blend of the natural sciences - geomorphology, hydrology and ecology - which govern channel forming processes. Induced Meandering directly challenges the dominant paradigm of river and creek stabilization by promoting the intentional erosion of selected banks while fostering deposition of eroded materials on an evolving floodplain. The river self-heals as the growth of native riparian vegetation accelerates the meandering process. Not all stream channel types are appropriate for Induced Meandering, yet the Induced Meandering philosophy of "going with the flow" can inform all stream restoration projects. Induced meandering strives to understand rivers as timeless entities governed by immutable rules serving their watersheds, setting their own timetables, and coping with their own realities as they carry mountains grain by grain to the sea. Anyone with an interest in natural resource management in these uncertain times should read this book and put these ideas to work.
Andrew J. Dunar and Dennis McBride skillfully interweave eyewitness accounts of the building of Hoover Dam. These stories create the richest existing portrait of the building of Hoover Dam and its tremendous effect on the lives of those involved in its creation: the gritty, sometimes grisly realities of living in cardboard boxes and tents during several of the hottest Southern Nevada summers on record; the fearsome carbon monoxide deaths of tunnel builders who, it was claimed, had died of "pneumonia"; the uproarious life of nearby Las Vegas versus the tightly controlled existence of the workers in the built-overnight confines of Boulder City; and of course the astounding accomplishment of building the Dam itself and completing the task not only early but under budget!
This book provides a comprehensive text on the geotechnical and geological aspects of the investigations for and the design and construction of new dams and the review and assessment of existing dams. The book provides dam engineers and geologists with a practical approach, and gives university students an insight into the subject of dam engineering. All phases of investigation, design and construction are covered, through to the preliminary and detailed design phases and ultimately the construction phase. This revised and expanded 2nd edition includes a lengthy new chapter on the assessment of the likelihood of failure of dams by internal erosion and piping.
Dams change the landscape, providing reservoirs of freshwater and even producing electricity. Discover the engineering behind dams.