Mount St Helens Cowlitz And Toutle Rivers Sedimentation Study 1984 Update
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Mount St Helens Cowlitz and Toutle Rivers Sedimentation Study 1984 Update
Author | : Anonim |
Publsiher | : Unknown |
Total Pages | : 202 |
Release | : 1984 |
Genre | : Cowlitz River (Wash.) |
ISBN | : UCR:31210018660207 |
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Mount St Helens Feasibility Report Toutle Cowlitz Columbia Rivers
Author | : Anonim |
Publsiher | : Unknown |
Total Pages | : 564 |
Release | : 1985 |
Genre | : Electronic Book |
ISBN | : NWU:35556031028426 |
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Mount St Helens Washington Decision Document
Author | : United States. Army. Corps of Engineers. Portland District |
Publsiher | : Unknown |
Total Pages | : 346 |
Release | : 1985 |
Genre | : Flood control |
ISBN | : UCR:31210024874297 |
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Notes on Sedimentation Activities
Author | : Anonim |
Publsiher | : Unknown |
Total Pages | : 248 |
Release | : 1984 |
Genre | : Hydrology |
ISBN | : UCR:31210025014992 |
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Numerical Simulation of Mudflows from Hypothetical Failures of the Castle Lake Debris Blockage Near Mount St Helens WA
Author | : Anonim |
Publsiher | : Unknown |
Total Pages | : 110 |
Release | : 1990 |
Genre | : Castle Lake (Wash.). |
ISBN | : ERDC:35925003017388 |
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A Decision Framework for Managing the Spirit Lake and Toutle River System at Mount St Helens
Author | : National Academies of Sciences, Engineering, and Medicine,Division of Behavioral and Social Sciences and Education,Board on Environmental Change and Society,Division on Earth and Life Studies,Water Science and Technology Board,Board on Earth Sciences and Resources,Committee on Geological and Geotechnical Engineering,Committee on Long-Term Management of the Spirit Lake/Toutle River System in Southwest Washington |
Publsiher | : National Academies Press |
Total Pages | : 337 |
Release | : 2018-04-29 |
Genre | : Nature |
ISBN | : 9780309464444 |
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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.
Mount St Helens Cowlitz and Toutle Rivers Sedimentation Study 1980 82
Author | : Anonim |
Publsiher | : Unknown |
Total Pages | : 328 |
Release | : 1982 |
Genre | : Cowlitz River (Wash.) |
ISBN | : UCR:31210018660082 |
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U S Geological Survey Open file Report
Author | : Anonim |
Publsiher | : Unknown |
Total Pages | : 458 |
Release | : 1986 |
Genre | : Geological surveys |
ISBN | : UOM:39015048169893 |
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