Geologic Hazards And Adverse Construction Conditions St George Hurricane Metropolitan Area Washington County Utah
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Geologic Hazards And Adverse Construction Conditions St George Hurricane Metropolitan Area Washington County Utah
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Author : William R. Lund
language : en
Publisher:
Release Date : 2008
Geologic Hazards And Adverse Construction Conditions St George Hurricane Metropolitan Area Washington County Utah written by William R. Lund and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Construction projects categories.
The St. George - Hurricane metropolitan area is one of the nation's fastest growing regions. As land well suited for development becomes scarce, urbanization has moved into less favorable areas where geologic hazards and geology related adverse construction conditions are a concern. This DVD includes a GIS search application that permits the maps to be queried by hazard and condition type and location.
2016guidelines For Investigating Geologic Hazards And Preparing Engineering Geology Reports With A Suggested Approach To Geologic Hazard Ordinances In Utah
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Author : Steve D. Bowman
language : en
Publisher: Utah Geological Survey
Release Date : 2016-09-21
2016guidelines For Investigating Geologic Hazards And Preparing Engineering Geology Reports With A Suggested Approach To Geologic Hazard Ordinances In Utah written by Steve D. Bowman and has been published by Utah Geological Survey this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-09-21 with Science categories.
The purpose of these guidelines for investigating geologic hazards and preparing engineering-geology reports, is to provide recommendations for appropriate, minimum investigative techniques, standards, and report content to ensure adequate geologic site characterization and geologic-hazard investigations to protect public safety and facilitate risk reduction. Such investigations provide important information on site geologic conditions that may affect or be affected by development, as well as the type and severity of geologic hazards at a site, and recommend solutions to mitigate the effects and the cost of the hazards, both at the time of construction and over the life of the development. The accompanying suggested approach to geologic-hazard ordinances and school-site investigation guidelines are intended as an aid for land-use planning and regulation by local Utah jurisdictions and school districts, respectively. Geologic hazards that are not accounted for in project planning and design often result in additional unforeseen construction and/or future maintenance costs, and possible injury or death.
Investigation Of The December 12 2013 Fatal Rock Fall At 368 West Main Street Rockville Utah
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Author : Willian R. Lund
language : en
Publisher: Utah Geological Survey
Release Date : 2014-03-26
Investigation Of The December 12 2013 Fatal Rock Fall At 368 West Main Street Rockville Utah written by Willian R. Lund and has been published by Utah Geological Survey this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-03-26 with Geology categories.
On the afternoon of December 12, 2013, a large, joint-controlled block of the Shinarump Conglomerate Member of the Chinle Formation, with an estimated volume of almost 1400 cubic yards and weighing about 2700 tons, detached from the cliff face at the top of the Rockville Bench in Rockville, Utah. The block fell on to the steep Moenkopi Formation slope below the cliff, and shattered into numerous cobble- to very large boulder-sized fragments. The fragments moved rapidly downslope before striking and destroying a house, detached garage, and car at 368 West Main Street in Rockville. The two occupants in the house were killed. The purpose of this 20-page investigation wast to document the characteristics of the fatal rock fall; evaluate future rock-fall hazard at and near the site; and provide recommendations for homeowners, the Town of Rockville, and other officials to consider in managing rock-fall risk. Although the first fatal event, this rock fall is the sixth large rock fall within the Town of Rockville in the 35 years prior to December 12, 2013. Five of those events occurred within the past nine years, and at least three of those struck and damaged structures at the base of the Rockville Bench.
Survey Notes
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Author :
language : en
Publisher:
Release Date : 2011
Survey Notes written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Geology categories.
Consensus Preferred Recurrence Interval And Vertical Slip Rate Estimates
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Author : William R. Lund
language : en
Publisher: Utah Geological Survey
Release Date : 2005-06-30
Consensus Preferred Recurrence Interval And Vertical Slip Rate Estimates written by William R. Lund and has been published by Utah Geological Survey this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005-06-30 with Science categories.
This report presents the results of the Utah Quaternary Fault Parameters Working Group (hereafter referred to as the Working Group) review and evaluation of Utah’s Quaternary fault paleoseismic-trenching data. The purpose of the review was to (1) critically evaluate the accuracy and completeness of the paleoseismictrenching data, particularly regarding earthquake timing and displacement, (2) where the data permit, assign consensus, preferred recurrence-interval (RI) and vertical slip-rate (VSR) estimates with appropriate confidence limits to the faults/fault sections under review, and (3) identify critical gaps in the paleoseismic data and recommend where and what kinds of additional paleoseismic studies should be performed to ensure that Utah’s earthquake hazard is adequately documented and understood. It is important to note that, with the exception of the Great Salt Lake fault zone, the Working Group’s review was limited to faults/fault sections having paleoseismic-trenching data. Most Quaternary faults/fault sections in Utah have not been trenched, but many have RI and VSR estimates based on tectonic geomorphology or other non-trench-derived studies. Black and others compiled the RI and VSR data for Utah’s Quaternary faults, both those with and without trenches.
Investigation Of Land Subsidence And Earth Fissures In Cedar Valley Iron County Utah
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Author : Paul Inkenbrandt
language : en
Publisher: Utah Geological Survey
Release Date : 2014-03-12
Investigation Of Land Subsidence And Earth Fissures In Cedar Valley Iron County Utah written by Paul Inkenbrandt and has been published by Utah Geological Survey this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-03-12 with Base flow (Hydrology) categories.
This 116-page report presents the results of an investigation by the Utah Geological Survey of land subsidence and earth fissures in Cedar Valley, Iron County, Utah. Basin-fill sediments of the Cedar Valley Aquifer contain a high percentage of fine-grained material susceptible to compaction upon dewatering. Groundwater discharge in excess of recharge (groundwater mining) has lowered the potentiometric surface in Cedar Valley as much as 114 feet since 1939. Groundwater mining has caused permanent compaction of fine-grained sediments of the Cedar Valley aquifer, which has caused the land surface to subside, and a minimum of 8.3 miles of earth fissures to form. Recently acquired interferometric synthetic aperture radar imagery shows that land subsidence has affected approximately 100 mi² in Cedar Valley, but a lack of accurate historical benchmark elevation data over much of the valley prevents its detailed quantification. Continued groundwater mining and resultant subsidence will likely cause existing fissures to lengthen and new fissures to form which may eventually impact developed areas in Cedar Valley. This report also includes possible aquifer management options to help mitigate subsidence and fissure formation, and recommended guidelines for conducting subsidence-related hazard investigations prior to development.
National Earthquake Resilience
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Author : National Research Council
language : en
Publisher: National Academies Press
Release Date : 2011-09-09
National Earthquake Resilience written by National Research Council and has been published by National Academies Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-09-09 with Science categories.
The United States will certainly be subject to damaging earthquakes in the future. Some of these earthquakes will occur in highly populated and vulnerable areas. Coping with moderate earthquakes is not a reliable indicator of preparedness for a major earthquake in a populated area. The recent, disastrous, magnitude-9 earthquake that struck northern Japan demonstrates the threat that earthquakes pose. Moreover, the cascading nature of impacts-the earthquake causing a tsunami, cutting electrical power supplies, and stopping the pumps needed to cool nuclear reactors-demonstrates the potential complexity of an earthquake disaster. Such compound disasters can strike any earthquake-prone populated area. National Earthquake Resilience presents a roadmap for increasing our national resilience to earthquakes. The National Earthquake Hazards Reduction Program (NEHRP) is the multi-agency program mandated by Congress to undertake activities to reduce the effects of future earthquakes in the United States. The National Institute of Standards and Technology (NIST)-the lead NEHRP agency-commissioned the National Research Council (NRC) to develop a roadmap for earthquake hazard and risk reduction in the United States that would be based on the goals and objectives for achieving national earthquake resilience described in the 2008 NEHRP Strategic Plan. National Earthquake Resilience does this by assessing the activities and costs that would be required for the nation to achieve earthquake resilience in 20 years. National Earthquake Resilience interprets resilience broadly to incorporate engineering/science (physical), social/economic (behavioral), and institutional (governing) dimensions. Resilience encompasses both pre-disaster preparedness activities and post-disaster response. In combination, these will enhance the robustness of communities in all earthquake-vulnerable regions of our nation so that they can function adequately following damaging earthquakes. While National Earthquake Resilience is written primarily for the NEHRP, it also speaks to a broader audience of policy makers, earth scientists, and emergency managers.
Disaster Resilience
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Author : National Academies
language : en
Publisher: National Academies Press
Release Date : 2012-12-29
Disaster Resilience written by National Academies and has been published by National Academies Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-29 with Science categories.
No person or place is immune from disasters or disaster-related losses. Infectious disease outbreaks, acts of terrorism, social unrest, or financial disasters in addition to natural hazards can all lead to large-scale consequences for the nation and its communities. Communities and the nation thus face difficult fiscal, social, cultural, and environmental choices about the best ways to ensure basic security and quality of life against hazards, deliberate attacks, and disasters. Beyond the unquantifiable costs of injury and loss of life from disasters, statistics for 2011 alone indicate economic damages from natural disasters in the United States exceeded $55 billion, with 14 events costing more than a billion dollars in damages each. One way to reduce the impacts of disasters on the nation and its communities is to invest in enhancing resilience-the ability to prepare and plan for, absorb, recover from and more successfully adapt to adverse events. Disaster Resilience: A National Imperative addresses the broad issue of increasing the nation's resilience to disasters. This book defines "national resilience", describes the state of knowledge about resilience to hazards and disasters, and frames the main issues related to increasing resilience in the United States. It also provide goals, baseline conditions, or performance metrics for national resilience and outlines additional information, data, gaps, and/or obstacles that need to be addressed to increase the nation's resilience to disasters. Additionally, the book's authoring committee makes recommendations about the necessary approaches to elevate national resilience to disasters in the United States. Enhanced resilience allows better anticipation of disasters and better planning to reduce disaster losses-rather than waiting for an event to occur and paying for it afterward. Disaster Resilience confronts the topic of how to increase the nation's resilience to disasters through a vision of the characteristics of a resilient nation in the year 2030. Increasing disaster resilience is an imperative that requires the collective will of the nation and its communities. Although disasters will continue to occur, actions that move the nation from reactive approaches to disasters to a proactive stance where communities actively engage in enhancing resilience will reduce many of the broad societal and economic burdens that disasters can cause.
Alluvial Fan Flooding
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Author : National Research Council
language : en
Publisher: National Academies Press
Release Date : 1996-11-07
Alluvial Fan Flooding written by National Research Council and has been published by National Academies Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996-11-07 with Science categories.
Alluvial fans are gently sloping, fan-shaped landforms common at the base of mountain ranges in arid and semiarid regions such as the American West. Floods on alluvial fans, although characterized by relatively shallow depths, strike with little if any warning, can travel at extremely high velocities, and can carry a tremendous amount of sediment and debris. Such flooding presents unique problems to federal and state planners in terms of quantifying flood hazards, predicting the magnitude at which those hazards can be expected at a particular location, and devising reliable mitigation strategies. Alluvial Fan Flooding attempts to improve our capability to determine whether areas are subject to alluvial fan flooding and provides a practical perspective on how to make such a determination. The book presents criteria for determining whether an area is subject to flooding and provides examples of applying the definition and criteria to real situations in Arizona, California, New Mexico, Utah, and elsewhere. The volume also contains recommendations for the Federal Emergency Management Agency, which is primarily responsible for floodplain mapping, and for state and local decisionmakers involved in flood hazard reduction.
Homebuyers Guide To Earthquake Hazards In Utah
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Author : Sandra N. Eldredge
language : en
Publisher: Utah Geological Survey
Release Date : 1996-11
Homebuyers Guide To Earthquake Hazards In Utah written by Sandra N. Eldredge and has been published by Utah Geological Survey this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996-11 with Technology & Engineering categories.
Large, damaging earthquakes can happen in many parts of Utah. Therefore, when choosing where to live in this state, we should be aware of the earthquake risk. It is important to know what potential earthquake hazards exist in an area, and what action we can take to reduce the earthquake risk to ourselves and our families. This brochure introduces homebuyers and others to earthquake hazards so that informed choices can be made when selecting homes, building sites, or hazard-reduction measures.