Sediment Transport, Turbidity, Channel Configuration, and Possible Effects of Impoundment of the Mad River, Humboldt County, California PDF Download
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Author: William M. Brown
Publisher:
ISBN:
Category : Sediment transport
Languages : en
Pages : 76
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Book Description
Author: William M. Brown
Publisher:
ISBN:
Category : Sediment transport
Languages : en
Pages : 76
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Author: William M Brown (III.)
Publisher:
ISBN:
Category :
Languages : en
Pages : 72
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Book Description
Sediment-transport conditions were determined at two stations, Mad River near Arcata and Mad River near Kneeland. Using a release-flow model and an empirical equation, the suspended-sediment discharge at Kneeland was estimated to be about 60 percent of the suspended-sediment discharge at the Arcata station. The study of the proposed impoundment determined the effect of discharge on channel configuration and concluded: The reservoir would trap about 60 percent of the potential beach-forming sediments. Release flows could transport the expected inflow of sediment particles less than 2 millimetres in diameter for the reach of the river downstream from the impoundment site and about 130,000 tons per year of bed material particles less than 3 inches (76 millimetres) in diameter. Release flows could be expected to degrade the channel for about 15 miles (24 kilometres) downstream from the impoundment, and downstream from that reach artificial adjustments would override most release-flow effects on channel adjustments. Turbidity of release flows could approximate preimpoundment turbidity for an average year.
Author: Kevin Knuuti
Publisher:
ISBN:
Category : Channels (Hydraulic engineering)
Languages : en
Pages : 326
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The U.S. Army Corps of Engineers currently regulates gravel-mining activities in Humboldt County, CA, under the authority described in Sec. 404 of the Clean Water Act. In order to better understand the effects gravel mining has had on the Mad River, the U.S. Army Engineer District, San Francisco, initiated this study to examine changes in channel morphology and bed elevation between 1971 and 2000. This study focused on existing cross section data and historic aerial photography from a variety of sources, and river sediment (bed-load and bed-material) data collected by the USGS. It also used new cross-section data collected in 2000 and gravel extraction records. This information was used to quantify geomorphic changes in the river, to establish a sediment budget, and to determine a sustainable yield for gravel extraction based on maintaining the river in an equilibrium condition.
Author:
Publisher:
ISBN:
Category : Geological surveys
Languages : en
Pages : 106
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Author: Richard H. Fuller
Publisher:
ISBN:
Category : Water quality
Languages : en
Pages : 64
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Author: H. M. Kelsey
Publisher:
ISBN:
Category : Erosion
Languages : en
Pages : 412
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Author: United States. Congress. Senate. Committee on Energy and Natural Resources. Subcommittee on Parks and Recreation
Publisher:
ISBN:
Category : National parks and reserves
Languages : en
Pages : 614
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Author: Richard J. Janda
Publisher:
ISBN:
Category : Watershed management
Languages : en
Pages : 178
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Author: Geological Survey (U.S.)
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 582
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Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 764
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