American River Watershed Common Features Project/Natomas Post-authorization Change Report/Natomas Levee Improvement Program, Phase 4b Landside Improvements Project PDF Download
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Author:
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Category :
Languages : en
Pages : 730
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Author:
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ISBN:
Category :
Languages : en
Pages : 730
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Author: United States. Office of the Assistant Secretary of the Army (Civil Works)
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Category : American River Watershed (Calif.)
Languages : en
Pages : 908
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Author:
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Category :
Languages : en
Pages : 478
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Author:
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Category : Flood control
Languages : en
Pages : 138
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Author: United States. Army. Corps of Engineers. Sacramento District
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Category : Flood control
Languages : en
Pages : 44
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Author: United States. Army. Corps of Engineers
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Category : Flood control
Languages : en
Pages : 144
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Book Description
Author: Carolyn Merchant
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Category : History
Languages : en
Pages : 520
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While the state of California remains one of the most striking and varied landscapes in the world, it has experienced monumental changes since European settlers first set foot there. The past two centuries have witnessed an ongoing struggle between environment and economy, nature and humanity that has left an indelible mark on the region. Green Versus Gold provides a compelling look at California's environmental history from its Native American past to conflicts and movements of recent decades. Acclaimed environmental historian Carolyn Merchant has brought together a vast storehouse of primary sources and interpretive essays to create a comprehensive picture of the history of ecological and human interactions in one of the nation's most diverse and resource-rich states. For each chapter, Merchant has selected original documents that give readers an eyewitness account of specific environments and periods, along with essays from leading historians, geographers, scientists, and other experts that provide context and analysis for the documents. In addition, she presents a list of further readings of both primary and secondary sources. Among other topics, chapters examine: California's natural environment and Native American lands the Spanish and Russian frontiers environmental impacts of the gold rush the transformation of forests and rangelands agriculture and irrigation cities and urban issues the rise of environmental science and contemporary environmental movement. Merchant's informed and well-chosen selections present a unique view of decades of environmental change and controversy. Historians, educators, environmentalists, writers, students, scientists, policy makers, and others will find the book an enlightening and important contribution to the debate over our nation's environmental history.
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Category : Flood control
Languages : en
Pages : 32
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Author: United States. Army. Corps of Engineers. Jacksonville District
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Category : Kissimmee River (Fla.)
Languages : en
Pages : 460
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Book Description
Author: United States. Army. Corps of Engineers
Publisher:
ISBN: 9781410217608
Category : Technology & Engineering
Languages : en
Pages : 176
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Book Description
The purpose of this manual is to present basic principles used in the design and construction of earth levees. The term levee as used herein is defined as an embankment whose primary purpose is to furnish flood protection from seasonal high water and which is therefore subject to water loading for periods of only a few days or weeks a year. Embankments that are subject to water loading for prolonged periods (longer than normal flood protection requirements) or permanently should be designed in accordance with earth dam criteria rather than the levee criteria given herein. Even though levees are similar to small earth dams they differ from earth dams in the following important respects: (a) a levee embankment may become saturated for only a short period of time beyond the limit of capillary saturation, (b) levee alignment is dictated primarily by flood protection requirements, which often results in construction on poor foundations, and (c) borrow is generally obtained from shallow pits or from channels excavated adjacent to the levee, which produce fill material that is often heterogeneous and far from ideal. Selection of the levee section is often based on the properties of the poorest material that must be used.
