Engineering Geology of the Salt Lake City Metropolitan Area, Utah

Engineering Geology of the Salt Lake City Metropolitan Area, Utah PDF

Author: William R. Lund

Publisher: Utah Geological Survey

Published: 1990

Total Pages: 77

ISBN-13: 1557910936

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Geologic exposures in the Salt Lake City region record a long history of sedimentation and tectonic activity extending back to the Precambrian Era. Today, the city lies above a deep, sediment-filled basin flanked by two uplifted range blocks, the Wasatch Range and the Oquirrh Mountains. The Wasatch Range is the easternmost expression of major Basin and Range extension in north-central Utah and is bounded on the west by the Wasatch fault zone (WFZ), a major zone of active normal faulting. During the late Pleistocene Epoch, the Salt Lake City region was dominated by a succession of inter-basin lakes. Lake Bonneville was the last and probably the largest of these lakes. By 11,000 yr BP, Lake Bonneville had receded to approximately the size of the present Great Salt Lake.

Earthquake Site Conditions in the Wasatch Front Corridor, Utah

Earthquake Site Conditions in the Wasatch Front Corridor, Utah PDF

Author: Greg N. McDonald

Publisher: Utah Geological Survey

Published: 2008-08

Total Pages: 46

ISBN-13: 1557917922

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This CD contains a 41-page report and a 1:150,000-scale map defining seismic site conditions for the Wasatch Front urban corridor. This mapping, partially funded through the U.S. Geological Survey’s National Hazards Reduction Program, provides a basis for predicting how certain soils and bedrock types may respond to ground-motion amplification in a large-magnitude earthquake on the Wasatch fault. Average shear-wave velocities were used for the upper 30 meters and surficial geologic mapping to delineate and characterize earthquake-site-conditions units that relate to International Building Code site classes. Better understanding of soil properties and earthquake-site effects for the densely populated Wasatch Front allows for improved earthquake engineering and emergency planning and response. 41 pages + 1 plate

2016GUIDELINES FOR INVESTIGATING GEOLOGIC HAZARDS AND PREPARING ENGINEERING-GEOLOGY REPORTS, WITH A SUGGESTED APPROACH TO GEOLOGIC-HAZARD ORDINANCES IN UTAH

2016GUIDELINES FOR INVESTIGATING GEOLOGIC HAZARDS AND PREPARING ENGINEERING-GEOLOGY REPORTS, WITH A SUGGESTED APPROACH TO GEOLOGIC-HAZARD ORDINANCES IN UTAH PDF

Author: Steve D. Bowman

Publisher: Utah Geological Survey

Published: 2016-09-21

Total Pages: 217

ISBN-13: 1557919291

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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.

The Civil War Years in Utah

The Civil War Years in Utah PDF

Author: John Gary Maxwell

Publisher: University of Oklahoma Press

Published: 2016-02-29

Total Pages: 489

ISBN-13: 0806155280

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In 1832 Joseph Smith, Jr., the Mormons’ first prophet, foretold of a great war beginning in South Carolina. In the combatants’ mutual destruction, God’s purposes would be served, and Mormon men would rise to form a geographical, political, and theocratic “Kingdom of God” to encompass the earth. Three decades later, when Smith’s prophecy failed with the end of the American Civil War, the United States left torn but intact, the Mormons’ perspective on the conflict—and their inactivity in it—required palliative revision. In The Civil War Years in Utah, the first full account of the events that occurred in Utah Territory during the Civil War, John Gary Maxwell contradicts the patriotic mythology of Mormon leaders’ version of this dark chapter in Utah history. While the Civil War spread death, tragedy, and sorrow across the continent, Utah Territory remained virtually untouched. Although the Church of Jesus Christ of Latter-day Saints—and its faithful—proudly praise the service of an 1862 Mormon cavalry company during the Civil War, Maxwell’s research exposes the relatively inconsequential contribution of these Nauvoo Legion soldiers. Active for a mere ninety days, they patrolled overland trails and telegraph lines. Furthermore, Maxwell finds indisputable evidence of Southern allegiance among Mormon leaders, despite their claim of staunch, long-standing loyalty to the Union. Men at the highest levels of Mormon hierarchy were in close personal contact with Confederate operatives. In seeking sovereignty, Maxwell contends, the Saints engaged in blatant and treasonous conflict with Union authorities, the California and Nevada Volunteers, and federal policies, repeatedly skirting open warfare with the U.S. government. Collective memory of this consequential period in American history, Maxwell argues, has been ill-served by a one-sided perspective. This engaging and long-overdue reappraisal finally fills in the gaps, telling the full story of the Civil War years in Utah Territory.