Author: United States. Army. Corps of Engineers
Publisher:
ISBN: 9781410217608
Category : Technology & Engineering
Languages : en
Pages : 176
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.
Design and Construction of Levees
Author: United States. Army. Corps of Engineers
Publisher:
ISBN: 9781410217608
Category : Technology & Engineering
Languages : en
Pages : 176
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.
Publisher:
ISBN: 9781410217608
Category : Technology & Engineering
Languages : en
Pages : 176
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.
Preliminary Determination of Epicenters
Author:
Publisher:
ISBN:
Category : Earthquake prediction
Languages : en
Pages : 522
Book Description
Publisher:
ISBN:
Category : Earthquake prediction
Languages : en
Pages : 522
Book Description
Geologic History of the Feather River Country, California
Author: Cordell Durrell
Publisher: Univ of California Press
ISBN: 9780520908024
Category : Nature
Languages : en
Pages : 356
Book Description
How did the Sierra Nevada and adjacent lands come to be the size and shape they are today? This book covers 400 million years of physical evolution in a language understandable to nonscientists, tracing the volcanic activity, the folding and building of mountains, the breaking of blocks along fault lines, and the work of erosion and glaciers that have created today's dramatic landscape. Cordell Durrell spent a lifetime reading this complex story of movement and change in the rocks of the Feather River country. He shares with readers the excitement of discovering by remote but careful inference what must have happened millions upon millions of years ago. The basic methods of geologic analysis that Durrell describes can be applied anywhere on the earth's surface, lending new fascination to our travels throughout the frozen arctic, dry deserts, tropical rainforests, low swamps, and high mountains like California's magnificent Sierra.
Publisher: Univ of California Press
ISBN: 9780520908024
Category : Nature
Languages : en
Pages : 356
Book Description
How did the Sierra Nevada and adjacent lands come to be the size and shape they are today? This book covers 400 million years of physical evolution in a language understandable to nonscientists, tracing the volcanic activity, the folding and building of mountains, the breaking of blocks along fault lines, and the work of erosion and glaciers that have created today's dramatic landscape. Cordell Durrell spent a lifetime reading this complex story of movement and change in the rocks of the Feather River country. He shares with readers the excitement of discovering by remote but careful inference what must have happened millions upon millions of years ago. The basic methods of geologic analysis that Durrell describes can be applied anywhere on the earth's surface, lending new fascination to our travels throughout the frozen arctic, dry deserts, tropical rainforests, low swamps, and high mountains like California's magnificent Sierra.
Draft, Additional Water Acquisition for Meeting VAMP Flow Objectives 1999
The Ecology of Eelgrass Meadows in the Pacific Northwest
Author: Ronald C. Phillips
Publisher:
ISBN:
Category : Coastal ecology
Languages : en
Pages : 104
Book Description
Publisher:
ISBN:
Category : Coastal ecology
Languages : en
Pages : 104
Book Description
Report of the Commissioner of Public Works to the Governor of California
Author: California. Commissioner of Public Works
Publisher:
ISBN:
Category : Irrigation
Languages : en
Pages : 56
Book Description
Publisher:
ISBN:
Category : Irrigation
Languages : en
Pages : 56
Book Description
The Tertiary Gravels of the Sierra Nevada of California
Author: Waldemar Lindgren
Publisher: Franklin Classics
ISBN: 9780343494681
Category :
Languages : en
Pages : 296
Book Description
This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Publisher: Franklin Classics
ISBN: 9780343494681
Category :
Languages : en
Pages : 296
Book Description
This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
New Publications of the U.S. Geological Survey
Report of Sacramento-San Joaquin Water Supervisor for the Period, 1924-1928
Author: California. Division of Water Resources
Publisher:
ISBN:
Category : Hydrology
Languages : en
Pages : 444
Book Description
Publisher:
ISBN:
Category : Hydrology
Languages : en
Pages : 444
Book Description