Development and Routing of Mudflow Resulting from Hypothetical Failure of Spirit Lake Debris Dam, Washington PDF Download
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Author: David L. Kresch
Publisher:
ISBN:
Category : Debris avalanches
Languages : en
Pages : 40
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Author: David L. Kresch
Publisher:
ISBN:
Category : Debris avalanches
Languages : en
Pages : 40
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Author:
Publisher:
ISBN:
Category : Hydrology
Languages : en
Pages : 204
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Author: Geological Survey (U.S.)
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 420
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Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 72
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Book Description
Author: Peter J. Stekl
Publisher:
ISBN:
Category : Aquifers
Languages : en
Pages : 314
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Book Description
... Describes the hydrologic and geologic characteristics of the stratified-drift aquifers - areal extent, saturated thickness, and transmissivity, ground-water levels, general directions of groundwater flow and yield of stratified drift and contributing area for selected aquifers after prolonged pumping; describes the general geohydrology of till and bedrock and water use and water yielding characteristics of the bedrock aquifer and documents groundwater quality; area covered in study includes Londonderry to New Castle, Beaver Brook, Little River, Spicket River and Powwow Rivers were the drainage sub-basins studied ...
Author: Geological Survey (U.S.).
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 962
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Author: National Academies of Sciences, Engineering, and Medicine
Publisher: National Academies Press
ISBN: 0309464471
Category : Nature
Languages : en
Pages : 337
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Book Description
The 1980 eruption of Mount St. Helens in southwest Washington State radically changed the physical and socio-economic landscapes of the region. The eruption destroyed the summit of the volcano, sending large amounts of debris into the North Fork Toutle River, and blocking the sole means of drainage from Spirit Lake 4 miles north of Mount St. Helens. As a result of the blockage, rising lake levels could cause failure of the debris blockage, putting the downstream population of approximately 50,000 at risk of catastrophic flooding and mud flows. Further, continued transport of sediment to the river from volcanic debris deposits surrounding the mountain reduces the flood carrying capacity of downstream river channels and leaves the population vulnerable to chronic flooding. The legacy of the 1980 eruption and the prospect of future volcanic, seismic, and flood events mean that risk management in the Spirit Lake Toutle River system will be challenging for decades to come. This report offers a decision framework to support the long-term management of risks related to the Spirit Lake and Toutle River system in light of the different regional economic, cultural, and social priorities, and the respective roles of federal, tribal, state, and local authorities, as well as other entities and groups in the region. It also considers the history and adequacy of characterization, monitoring, and management associated with the Spirit Lake debris blockage and outflow tunnel, other efforts to control transport of water and sediment from the 1980 and later eruptions, and suggests additional information needed to support implementation of the recommended decision framework.
Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 444
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Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 1528
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Author:
Publisher:
ISBN:
Category : Water-supply
Languages : en
Pages : 338
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