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Investigation Of Impacts To Tributaries From Missouri River Channel Degradation
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Book Synopsis Investigation of Impacts to Tributaries from Missouri River Channel Degradation by :
Download or read book Investigation of Impacts to Tributaries from Missouri River Channel Degradation written by and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This report is to supplement the biennial report, Investigation of Channel Degradation - Missouri River, Gavins Point Dam to Platte River confluence, which updates Voume IV, Supporting Technical Report, Missouri River Degradation. Volume IV is part of the August 1981 Review Report of the Water Resource Management Study for Metropolitan Sioux City and Missouri River, Iowa, Nebraska, and South Dakota.
Book Synopsis Missouri River Planning by : National Research Council
Download or read book Missouri River Planning written by National Research Council and published by National Academies Press. This book was released on 2011-03-24 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: Historically, the flow of sediment in the Missouri River has been as important as the flow of water for a variety of river functions. The sediment has helped form a dynamic network of islands, sandbars, and floodplains, and provided habitats for native species. Further downstream, sediment transported by the Missouri and Mississippi Rivers has helped build and sustain the coastal wetlands of the Mississippi River delta. The construction of dams and river bank control structures on the Missouri River and its tributaries, however, has markedly reduced the volume of sediment transported by the river. These projects have had several ecological impacts, most notably on some native fish and bird species that depended on habitats and landforms created by sediment flow. Missouri River Planning describes the historic role of sediment in the Missouri River, evaluates current habitat restoration strategies, and discusses possible sediment management alternatives. The book finds that a better understanding of the processes of sediment transport, erosion, and deposition in the Missouri River will be useful in furthering river management objectives, such as protection of endangered species and development of water quality standards.
Book Synopsis The Missouri River Ecosystem by : National Research Council
Download or read book The Missouri River Ecosystem written by National Research Council and published by National Academies Press. This book was released on 2002-07-22 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Missouri River Ecosystem: Exploring the Prospects for Recovery resulted from a study conducted at the request of the U.S. Environmental Protection Agency and the U.S. Army Corps of Engineers. The nation's longest river, the Missouri River and its floodplain ecosystem experienced substantial environmental and hydrologic changes during the twentieth century. The context of Missouri River dam and reservoir system management is marked by sharp differences between stakeholders regarding the river's proper management regime. The management agencies have been challenged to determine the appropriate balance between these competing interests. This Water Science and Technology Board report reviews the ecological state of the river and floodplain ecosystem, scientific research of the ecosystem, and the prospects for implementing an adaptive management approach, all with a view toward helping move beyond ongoing scientific and other differences. The report notes that continued ecological degradation of the ecosystem is certain unless some portion of pre-settlement river flows and processes were restored. The report also includes recommendations to enhance scientific knowledge through carefully planned and monitored river management actions and the enactment of a Missouri River Protection and Recovery Act.
Book Synopsis Modeling Incision of Tributaries from Missouri River Degradation by : Reuben Heine
Download or read book Modeling Incision of Tributaries from Missouri River Degradation written by Reuben Heine and published by . This book was released on 2005 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research uses multivariate analysis to spatially assess channel network rejuvenation following a base-level drop. It develops and tests a GIS model to estimate the spatial distribution of channel incision with a focus on the loess-dominated tributary watersheds of the Missouri River in Nebraska and Iowa. In this homogenous-geologic setting, it was found that a multiplicative combination of base-level drop and a flow-length parameter (position ratio) performed better than any other tested combination of variables, explaining 73% of the variance in observed upstream streambed-elevation change and produced an overall predication sums of squares error of less than 0.4 meters. The position ratio method requires only a digital elevation model. This permits model extrapolation using map algebra to all stream sites responding to a base-level drop. This study focused on the degraded tributaries of the Missouri River from Gavins Point Dam (RM 811.4) to the confluence with Platte River (RM 594.60). The 280 km study reach of the Missouri River is shown to have degraded its bed by 0 to 4 meters since the closure of the Gavins Point Dam in 1954. The tributary streams to the Missouri River were selected because they provided several fundamental constraints on the problem including: (1) these loess-dominated stream channels were free from aggradational feedbacks common to coarser-grained alluvial channels, (2) complete rejuvenation of fluvial systems was documented to occur in less than 30 years, (3) an extensive historical record of streambed elevations has been assembled for these streams, (4) known sources of base-level drop were identifiable both in time and location, and (5) varied environmental conditions exist related to basin size, slope, flow lengths and landuse patterns. While the statistical linkage between base-level lowering and upstream-streambed lowering was an important finding, it was also expected. The two most significant contributions made by this study were (1) the creation of a new spatial model for the assessment of change in streambed elevation for networks responding to a base-level drop and (2) the production of a GIS layer (map) of expected tributary incision due to Middle Missouri River degradation.
Book Synopsis Floodplain Management Assessment of the Upper Mississippi River and Lower Missouri Rivers and Tributaries by :
Download or read book Floodplain Management Assessment of the Upper Mississippi River and Lower Missouri Rivers and Tributaries written by and published by . This book was released on 1995 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Cumulative Erosion Impacts Analysis of the Missouri River Master Water Control Manual Review and Update Study by : Thomas J. Pokrefke
Download or read book Cumulative Erosion Impacts Analysis of the Missouri River Master Water Control Manual Review and Update Study written by Thomas J. Pokrefke and published by . This book was released on 1998 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Degradation and Aggradation of the Missouri River by : William W. Sayre
Download or read book Degradation and Aggradation of the Missouri River written by William W. Sayre and published by . This book was released on 1978 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of a workshop held in Omaha, Nebraska, 22-25 January, 1978. Edited by W.W. Sayre and J.F. Kennedy. Iowa Conservation Commission. IIHR Report No. 215. Iowa Institute of Hydraulic Research, the University of Iowa, Iowa City, Iowa.
Book Synopsis Missouri River Streambank Erosion Control (SD,ND,NE,MT) by :
Download or read book Missouri River Streambank Erosion Control (SD,ND,NE,MT) written by and published by . This book was released on 1978 with total page 666 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Missouri River Bank Stabilization, Navigation by :
Download or read book Missouri River Bank Stabilization, Navigation written by and published by . This book was released on 1979 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Stream Channel Degradation and Aggradation by : Thomas N. Keefer
Download or read book Stream Channel Degradation and Aggradation written by Thomas N. Keefer and published by . This book was released on 1980 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Missouri River Master Water Control Manual by :
Download or read book Missouri River Master Water Control Manual written by and published by . This book was released on 2004 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Missouri River, Gavins Point Dam, Downstream Degradation and Sediment Trends Study by : Hsieh Wen Shen
Download or read book Missouri River, Gavins Point Dam, Downstream Degradation and Sediment Trends Study written by Hsieh Wen Shen and published by . This book was released on 1989 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Missouri River Bank Stabilization and Navigation Project by :
Download or read book Missouri River Bank Stabilization and Navigation Project written by and published by . This book was released on 1978 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Missouri River Bridge, Dredging by :
Download or read book Missouri River Bridge, Dredging written by and published by . This book was released on 1978 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Potamology Investigation by : Water and Environment Consultants
Download or read book Potamology Investigation written by Water and Environment Consultants and published by . This book was released on 1976 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past 10 years, the Missouri River has experienced a large downward shift in its stage discharge relationship at the Sioux City, Iowa, gaging station. The stage for a given discharge, in the range of 10,000 to 40,000 cfs, has decreased 5-8 feet in this time. A study of related data shows that the combined interaction of geologic, hydrologic, geometric, and hydraulic factors influenced this change. The major changes which combined to cause a general degradation in the river reach near Sioux City include a reduction in suspended sediment load, a shortening of the river channel in the area, construction of river training works, and a recent (7 year) increase in the mean yearly flows as well as increased peak flows. The resulting degradation and increase in total channel area below the high bank elevation have lowered the stage for a given discharge at Sioux City. This study illustrates the changes which have occurred in the river since 1950.
Book Synopsis Sedimentation and Navigation Study of the Missouri River, Copeland Bend, Miles 569 to 564.5. Hydraulic Micro Model Investigation by :
Download or read book Sedimentation and Navigation Study of the Missouri River, Copeland Bend, Miles 569 to 564.5. Hydraulic Micro Model Investigation written by and published by . This book was released on 1999 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: A sedimentation and navigation study of the Missouri River at Copeland Bend, between Miles 569 and 564.5, was conducted by the U.S. Army Corps of Engineers, Northwestern Division, Omaha. Nebraska. The study examined the effects of structural modifications to existing dikes upon the navigation channel and also upon lateral erosion. The study was conducted at the Applied River Engineering Center in St. Louis, Missouri. A physical hydraulic micro model was used to evaluate numerous dike modification plans to existing dikes located off the left descending bank of Copeland Bend. Results indicated that most of the proposed modifications to dikes, such as small notches, minimal elevation degradation, addition of chevrons, etc. had little or no negative effect to the integrity of the navigation channel. In addition, tests showed that major modifications made along the left descending bank, such as bankline excavation, could be tolerated as long as the existing dikes were left in place. Flow visualization showed that most tests generated new flowlines along or near the left descending bank, which would be considered an added environmental benefit.
Book Synopsis Identification and Analysis of Selected High Priority Water Problems and Related Research Needs of the Missouri River Basin by : Missouri River Basin Water Institute Consortium
Download or read book Identification and Analysis of Selected High Priority Water Problems and Related Research Needs of the Missouri River Basin written by Missouri River Basin Water Institute Consortium and published by . This book was released on 1975 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
