Discovering the Polaris Fault, Martis Creek Dam, Truckee, California

2018 ◽  
Vol 24 (1) ◽  
pp. 111-120
Author(s):  
Lewis E. Hunter ◽  
Ronn S. Rose ◽  
Bruce Hilton ◽  
William McCormick ◽  
Todd Crampton
Keyword(s):  
Flood Control ◽  
Late Quaternary ◽  
Ground Surface ◽  
Lake Tahoe ◽  
The United States ◽  
Army Corps ◽  
Army Corps Of Engineers ◽  
Vegetation Canopy ◽  
History Of ◽  
Control Purpose

Abstract Martis Creek Dam, located in the Truckee Basin north of Lake Tahoe, CA, was initially rated as one of the U.S. Army Corps of Engineers’ highest risk dams in the United States. While the dam has performed its flood control purpose, a history of excessive seepage during even moderate reservoir levels has prevented it from also fulfilling its potential water storage function. During seepage and seismic studies to assess and mitigate deficiencies, high-resolution light detection and ranging (LiDAR) data were obtained. This imagery provides an unprecedented representation of the ground surface that allows evaluation of geomorphology even in areas with a dense vegetation canopy. At Martis Creek Dam, this geomorphic analysis resulted in the recognition of a previously unknown and through-going lineament between the spillway and dam embankment. This feature extends to the southeast, where several lineament splays are exposed on the East Martis Creek Fan. These lineaments were subsequently explored by paleo-seismic trenching at two locations and confirmed as faults with Late Quaternary to Holocene displacement. Faulting was confirmed in both trenches as unique splays of a fault zone with several feet of apparent normal (vertical) slip and an unknown magnitude, but a potentially significant, strike-slip component. Faulting was observed near the ground surface in both cases, and multiple fault events (a minimum of two) are interpreted as at least latest Pleistocene in age, and probably active in the Holocene.

Balancing Fisheries Management and Water Uses for Impounded River Systems

2008 ◽  
Keyword(s):  
Water Quality ◽  
Fisheries Management ◽  
Flood Control ◽  
Missouri River ◽  
The United States ◽  
Army Corps ◽  
Army Corps Of Engineers ◽  
Corps Of Engineers ◽  
Earthen Dams ◽  
Water Uses

<em>Abstract</em>.—As authorized by the Flood Control Act of 1944, the Army Corps of Engineers operates six large earthen dams in Montana, North Dakota, South Dakota, and Nebraska on the main stem of the Missouri River. The six reservoirs make up the largest reservoir system in the United States and are used for flood control, navigation, irrigation, hydropower, water supply and water quality, recreation, and fish and wildlife.

Recreational Niches & Their Management Implications

1983 ◽  
Vol 5 (2) ◽  
pp. 8-9
Author(s):  
Curtis Wienker
Keyword(s):  
United States Army ◽  
Flood Control ◽  
The United States ◽  
Army Corps ◽  
Army Corps Of Engineers ◽  
Corps Of Engineers ◽  
Scenic Beauty ◽  
Rugged Topography ◽  
Geological Formations ◽  
Control Water

The Red River Gorge in central Kentucky lies approximately fifty miles southeast of Lexington and is probably best known for its natural features. It is a place of remarkable scenic beauty characterized by extremely rugged topography. Until the late 1960's, it was considered one of the more beautiful parts of the Daniel Boone National Forest. At this time, however, the United States Army Corps of Engineers submitted a proposal to dam the river for flood control, water supply and recreational purposes. Although the project was to be located just under the Gorge, it would have resulted in flooding the area and some of the more unique geological formations found there, as well as forcing the relocation of fifty-five families. There was intense opposition to the dam by local landowners and local and national conservation groups. In 1968, Justice William O. Douglas made a highly-publicized visit to the area to indicate his opposition to the project. This resistance generated considerable publicity for the area and finally, in 1975, Kentucky governor Julian Carroll withdrew his support for the project, forcing the Corps of Engineers to put the dam on "inactive status."

Multiscenario, Spatially Detailed Forecasting of Utility Steam Coal for the Ohio River Navigation System

2005 ◽  
Vol 1909 (1) ◽  
pp. 39-46
Author(s):  
Jeff Watkins ◽  
Dale W. Kelz
Keyword(s):  
Ambient Air ◽  
The United States ◽  
Army Corps ◽  
Ohio River ◽  
Army Corps Of Engineers ◽  
Utility Industry ◽  
National Power ◽  
Economics Model ◽  
Coal Supply ◽  
Economic Analyses

The U.S. Army Corps of Engineers has pursued continual refinement in the waterway traffic forecasts used in project economic analyses. The multiscenario forecasting of utility steam coal described in this paper, based on the work of Hill & Associates, Inc. (H&A), is a substantial refinement of previous forecasting efforts. H&A prepares 20-year steam coal forecasts on the basis of the interaction of two major linear programming models: the National Power Model (NPM) and the Utility Fuel Economics Model (UFEM). The NPM is a utility industry model that dispatches all electric generating plants in the United States (coal and noncoal), producing forecasts of generation by fuel type within a context of transmission and environmental constraints. The UFEM makes use of highly detailed coal supply data (for approximately 98 coal types) to allocate fuels among plants and units. These two models develop forecasts of coal demand for electricity generation, by type of coal, which were then “mapped” to the waterway. H&A prepared separate forecast scenarios based on three alternative environmental regulatory futures. The first is a continuation of existing law (in this case, the national ambient air quality standards). The second H&A scenario reflects implementation of the administration's Clear Skies Initiative. The final H&A scenario is an implementation of the Clear Skies Initiative without the proposal's severe mercury restrictions.

scholarly journals A Case History Study of the Recycling Efforts from the United States Army Corps of Engineers Hurricane Katrina Debris Removal Mission in Mississippi

2011 ◽  
Vol 2011 ◽  
pp. 1-9 ◽  
Author(s):  
Dennis Leroy Brandon ◽  
Victor Frank Medina ◽  
Agnes Belinda Morrow
Keyword(s):  
Hurricane Katrina ◽  
United States Army ◽  
Private Property ◽  
Construction Material ◽  
Electronic Waste ◽  
The United States ◽  
Army Corps ◽  
Army Corps Of Engineers ◽  
Corps Of Engineers ◽  
Debris Removal

In support of the Federal Emergency Management Agency (FEMA), the US Army Corps of Engineers (USACE) managed the removal of Hurricane Katrina storm debris in several states. This paper focuses on the debris removal practices in 16 southern Mississippi counties and the recycling efforts. Debris was removed from public and private property. The debris included vegetation, construction material, electronic waste, vehicles, and vessels. The scope of the USACE mission was expanded several times. The scope within the respective counties varied from vegetation only to the removal of every eligible form of debris. The recommendations proposed should enhance recycling efforts during future debris removal missions.

The Impact of Recreation Development on Local People

1983 ◽  
Vol 5 (2) ◽  
pp. 6-7
Author(s):  
Susan Duda
Keyword(s):  
United States Army ◽  
The United States ◽  
Public Law ◽  
Army Corps ◽  
Army Corps Of Engineers ◽  
South Fork ◽  
North Central ◽  
Park Service ◽  
Recreation Area ◽  
The Impact

In 1974 Public Law 93-251 authorized the estaablishment of the Big South Fork National River and Recreation Area (BSFNRRA). Included were approximately 125,000 acres of portions of a five county area in southeastern Kentucky and north central Tennessee consisting of the Big South Fork River, its tributaries, gorge, and adjacent rim area. Original plans called for the gorge area to remain in its undeveloped state and for the rim area to be developed with lodges, campgrounds, overlooks, trails, and picnic areas. The acquisition of land and the design and construction of roads and facilities were among the responsibilities of the United States Army Corps of Engineers, with the National Park Service assuming responsibility for management once the BSFNRRA is officially established.

Factors Affecting Joint Efficiency of Roller-Compacted Concrete Pavement Joints and Cracks

1996 ◽  
Vol 1525 (1) ◽  
pp. 10-20 ◽  
Author(s):  
David W. Pittman
Keyword(s):  
Crack Width ◽  
The United States ◽  
Army Corps ◽  
Slab Thickness ◽  
Army Corps Of Engineers ◽  
Factors Affecting ◽  
Roller Compacted Concrete ◽  
Joint Efficiency ◽  
Width Measurements ◽  
The Individual

The mechanism of joint efficiency for roller-compacted concrete (RCC) pavement joints and cracks is affected primarily by aggregate interlock or friction at the vertical interface of the joint. Current U.S. Army Corps of Engineers design procedures for RCC pavements make the conservative assumption that no joint efficiency is achieved at RCC pavement joints and cracks. The purpose of this study was to determine the degree of joint efficiency achieved at RCC pavement joints and cracks; to determine the factors that affect the joint efficiency, and to what degree; and to develop a regression model to predict the joint efficiency using those factors. The heavy weight deflectometer (HWD) and other devices were used to conduct nondestructive joint efficiency tests at 12 different RCC pavement sites around the United States. The joint efficiency results ranged from 22 percent to 89 percent, depending on the type of joint or crack tested. The joint efficiencies decreased significantly with increasing crack width, crack spacing, and decreasing temperature. Cores were taken from some of the sites, and crack width measurements with depth indicated little evidence of crack skewing. The HWD load magnitude significantly affected the joint efficiency, and the individual effects of slab thickness and modulus of subgrade reaction did not appear to be significant from observation of the data. A regression was developed that predicts the joint efficiency of RCC pavement joints or cracks, with an R2 of 62 percent.

scholarly journals Wetlands and Environmental Legislation Issues

1994 ◽  
Vol 26 (1) ◽  
pp. 80-89 ◽  
Author(s):  
Roy R. Carriker
Keyword(s):  
United States ◽  
United States Army ◽  
Clean Water Act ◽  
The United States ◽  
Army Corps ◽  
Clean Water ◽  
Army Corps Of Engineers ◽  
Section 404 ◽  
Definition Of

AbstractThe federal government program for wetlands regulation is administered by the United States Army Corps of Engineers pursuant to Section 404 of the Clean Water Act. Proposals for amending and/or reforming the Section 404 program are included in Congressional deliberations regarding Clean Water Act reauthorization. Specific issues of public policy include the definition of “waters of the United States”, criteria for delineation of jurisdictional wetlands, definition of activities exempt from regulation, mitigation and classification of wetlands, and issues of property rights.

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