Estimates of Bridge Scour at Two Sites on the Virgin River, Southeastern Nevada, Using a Sediment-transport Model and Historical Geomorphic Data PDF Download
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Author: Marsha M. Hilmes
Publisher:
ISBN:
Category : Scour at bridges
Languages : en
Pages : 78
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Book Description
Author: Marsha M. Hilmes
Publisher:
ISBN:
Category : Scour at bridges
Languages : en
Pages : 78
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Book Description
Author:
Publisher:
ISBN:
Category : Hydrology
Languages : en
Pages : 82
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Book Description
Author: Geological Survey (U.S.)
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 390
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Book Description
Author: Geological Survey (U.S.)
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 328
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Book Description
Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 72
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Book Description
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 940
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Book Description
Author: Gregory L. Morris
Publisher: McGraw Hill Professional
ISBN: 9780070433021
Category : Science
Languages : en
Pages : 864
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Book Description
Focusing on reservoir sedimentation management and control, this work defines the nature and severity of sedimentation, reviews relevant physical processes, describes techniques used to combat sedimentation, and presents detailed case studies.
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309082951
Category : Science
Languages : en
Pages : 449
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Book Description
The Clean Water Act (CWA) requires that wetlands be protected from degradation because of their important ecological functions including maintenance of high water quality and provision of fish and wildlife habitat. However, this protection generally does not encompass riparian areasâ€"the lands bordering rivers and lakesâ€"even though they often provide the same functions as wetlands. Growing recognition of the similarities in wetland and riparian area functioning and the differences in their legal protection led the NRC in 1999 to undertake a study of riparian areas, which has culminated in Riparian Areas: Functioning and Strategies for Management. The report is intended to heighten awareness of riparian areas commensurate with their ecological and societal values. The primary conclusion is that, because riparian areas perform a disproportionate number of biological and physical functions on a unit area basis, restoration of riparian functions along America's waterbodies should be a national goal.
Author: Jeffrey Ray Keaton
Publisher: Transportation Research Board
ISBN: 0309214114
Category : Science
Languages : en
Pages : 186
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Book Description
"This report provides a methodology for estimating the time rate of scour and the design scour depth for a bridge founded on rock, as well as design and construction guidelines for application of the methodology. It will be of interest to hydraulic, bridge, and geotechnical engineers responsible for designing bridge foundations on rock or maintenance engineers concerned about existing bridges founded on erodible rock."--Foreword.
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309125391
Category : Nature
Languages : en
Pages : 611
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Book Description
The rapid conversion of land to urban and suburban areas has profoundly altered how water flows during and following storm events, putting higher volumes of water and more pollutants into the nation's rivers, lakes, and estuaries. These changes have degraded water quality and habitat in virtually every urban stream system. The Clean Water Act regulatory framework for addressing sewage and industrial wastes is not well suited to the more difficult problem of stormwater discharges. This book calls for an entirely new permitting structure that would put authority and accountability for stormwater discharges at the municipal level. A number of additional actions, such as conserving natural areas, reducing hard surface cover (e.g., roads and parking lots), and retrofitting urban areas with features that hold and treat stormwater, are recommended.
