A Decision Framework for Managing the Spirit Lake and Toutle River System at Mount St. Helens

A Decision Framework for Managing the Spirit Lake and Toutle River System at Mount St. Helens
Author :
Publisher : National Academies Press
Total Pages : 337
Release :
ISBN-10 : 9780309464475
ISBN-13 : 0309464471
Rating : 4/5 (471 Downloads)

Book Synopsis A Decision Framework for Managing the Spirit Lake and Toutle River System at Mount St. Helens by : National Academies of Sciences, Engineering, and Medicine

Download or read book A Decision Framework for Managing the Spirit Lake and Toutle River System at Mount St. Helens written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2018-03-29 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.


A Decision Framework for Managing the Spirit Lake and Toutle River System at Mount St. Helens Related Books

A Decision Framework for Managing the Spirit Lake and Toutle River System at Mount St. Helens
Language: en
Pages: 337
Authors: National Academies of Sciences, Engineering, and Medicine
Categories: Nature
Type: BOOK - Published: 2018-03-29 - Publisher: National Academies Press

GET EBOOK

The 1980 eruption of Mount St. Helens in southwest Washington State radically changed the physical and socio-economic landscapes of the region. The eruption des
A Decision Framework for Managing the Spirit Lake and Toutle River System at Mount St. Helens
Language: en
Pages: 337
Authors: National Academies of Sciences, Engineering, and Medicine
Categories: Nature
Type: BOOK - Published: 2018-04-29 - Publisher: National Academies Press

GET EBOOK

The 1980 eruption of Mount St. Helens in southwest Washington State radically changed the physical and socio-economic landscapes of the region. The eruption des
After the Blast
Language: en
Pages: 266
Authors: Eric Wagner
Categories: Nature
Type: BOOK - Published: 2020-04-20 - Publisher: University of Washington Press

GET EBOOK

On May 18, 1980, people all over the world watched with awe and horror as Mount St. Helens erupted. Fifty-seven people were killed and hundreds of square miles
Climate Change and Indigenous Peoples in the United States
Language: en
Pages: 178
Authors: Julie Koppel Maldonado
Categories: Science
Type: BOOK - Published: 2014-04-05 - Publisher: Springer

GET EBOOK

With a long history and deep connection to the Earth’s resources, indigenous peoples have an intimate understanding and ability to observe the impacts linked
Mountain Watch
Language: en
Pages: 84
Authors: Simon Blyth
Categories: Environmental degradation
Type: BOOK - Published: 2002 - Publisher: UNEP/Earthprint

GET EBOOK