Swift Creek Watershed
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Swift Creek Watershed
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Author : United States. Soil Conservation Service
language : en
Publisher:
Release Date : 1978
Swift Creek Watershed written by United States. Soil Conservation Service and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1978 with Flood control categories.
Swift Creek Watershed
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Author :
language : en
Publisher:
Release Date : 1978
Swift Creek Watershed written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1978 with categories.
The Nature And Transport Of The Fine Grained Component Of Swift Creek Landslide Northwest Washington
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Author : Tovah Michelle Bayer
language : en
Publisher:
Release Date : 2006
The Nature And Transport Of The Fine Grained Component Of Swift Creek Landslide Northwest Washington written by Tovah Michelle Bayer and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Bed load categories.
Extreme sedimentation in Swift Creek, located in the Cascades foothills in NW Washington (48°55'N, 122°16'W), results from erosion of the oversteepened, unvegetated toe of a large (0.55 km2) active earthflow. The amount of bedload in the creek has necessitated several mitigation projects in the channel including annual dredging and temporary sediment traps in an attempt to reduce the risk of flooding and damage to manmade structures downstream. The bedload and suspended sediment in the creek are a direct result of the weathering process of the serpentinitic bedrock, in which the landslide is rooted. The serpentinite weathers to asbestiform chrysotile with minor amounts of chlorite, illite and hydrotalcite, all of which occur in clay seeps on the unvegetated surface of the landslide. The chrysotile fibers average 2 [lower case mu]m in length and make up at least 50%, by volume, of the suspended load transported in Swift Creek. The suspended sediment transported by Swift Creek poses a threat to downstream ecosystems in the Sumas River because of the turbidity and heavy metals that Swift Creek introduces into this fish-producing river. This study does not address the environmental or health implications of the asbestiform chrysotile transport or deposition. During the sampled time between February 2005 and February 2006, the suspended sediment concentrations ranged from 0.02 g/L to 41.6 g/L and the discharge ranged from 0.00 m3/s to 0.51 m3/s. A nonlinear functional model estimated the total suspended sediment flux from detailed precipitation records and discrete suspended sediment concentration and discharge measurements to be 910 t/km2/yr. That number, coupled with the bedload estimate of 17,600 t/km2/yr, which is based on cross-sectional differences and dredged material, resulted in a total sediment yield of 18,510 t/km2/yr. The estimated erosion rate for the Swift Creek watershed is 11 mm/yr and 158 mm/yr for the Swift Creek landslide alone. The majority of the material entering Swift Creek is presumed to be originating on the unvegetated toe of the SCL, where the erosion rate is approximately 950 mm/yr.
Estimating Sediment Yield From The Swift Creek Landslide Whatcom County Washington State
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Author : Curtis R. Clement
language : en
Publisher:
Release Date : 2014
Estimating Sediment Yield From The Swift Creek Landslide Whatcom County Washington State written by Curtis R. Clement and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with Asbestos categories.
Swift Creek Basin Flood Control Edgecombe And Nash Counties
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Author :
language : en
Publisher:
Release Date : 1977
Swift Creek Basin Flood Control Edgecombe And Nash Counties written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1977 with categories.
Upgrading And Expansion Of The Falling Creek Wastewater Treatment Facility
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Author :
language : en
Publisher:
Release Date : 1976
Upgrading And Expansion Of The Falling Creek Wastewater Treatment Facility written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1976 with categories.
Us 70 Improvements From I 40 To Intersection Of Us 70 And Us 70 Business Wake County Johnston County
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Author :
language : en
Publisher:
Release Date : 1998
Us 70 Improvements From I 40 To Intersection Of Us 70 And Us 70 Business Wake County Johnston County written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with categories.
Hearings
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Author : United States. Congress. House. Committee on Public Lands
language : en
Publisher:
Release Date : 1948
Hearings written by United States. Congress. House. Committee on Public Lands and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1948 with categories.
Public Lands Committee Hearings Rawlins Wyo
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Author : United States. Congress. House. Committee on Public Lands. Subcommittee on Public Lands
language : en
Publisher:
Release Date : 1948
Public Lands Committee Hearings Rawlins Wyo written by United States. Congress. House. Committee on Public Lands. Subcommittee on Public Lands and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1948 with Forest reserves categories.
Public Lands Committee Hearings Rawlins Wyo
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Author : United States. Congress. House. Committee on Public Lands. Subcommittee on Public Lands. Subcommittee on Public Lands
language : en
Publisher:
Release Date : 1948
Public Lands Committee Hearings Rawlins Wyo written by United States. Congress. House. Committee on Public Lands. Subcommittee on Public Lands. Subcommittee on Public Lands and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1948 with Forest reserves categories.