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Book Environmental and Water Quality Operational Studies  Morphologic Effects of Lower Mississippi River Dike Fields

Download or read book Environmental and Water Quality Operational Studies Morphologic Effects of Lower Mississippi River Dike Fields written by Nelson R. Nunnally and published by . This book was released on 1986 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dikes are used extensively on large, meandering rivers to help maintain navigation channels. Dike fields alter flow velocities and sedimentation patterns, thereby affecting river morphology and the amount and quality of aquatic habitat. Some investigators have theorized that sedimentation induced by the dike fields constructed on the lower Mississippi, largely since 1960, is altering river morphology and aquatic hatibat in a manner similar to the changes that have been observed in the lower Missouri. Others are of the opinion that dike fields on the lower Mississippi do not typically fill completely with sediment, and the pools they contain have increased the amount of slack-water habitat. Low-water photographs taken in 1962 and 1976 and comprehensive hydrographic surveys done in 1962-64 and 1974-75 were used to measure morphologic changes in diked and undiked reaches. River surface area between river miles 320 and 954 was classified as main channel, secondary channel, slough, chute, or pool. The 1962 and 1976 areas in each category were measured from the photographs. River stage at time of photography averaged about 2 ft (0.6 m) lower in 1976, so 1976 measurements were adjusted for stage differential, based on width mesurements taken from the hydrogaphic surveys. Results were summarized for diked and undiked reaches.

Book Selected Water Resources Abstracts

Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1989 with total page 956 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Analysis of Lower Mississippi River Dike Field Performance

Download or read book Analysis of Lower Mississippi River Dike Field Performance written by and published by . This book was released on 2001 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Geomorphology of the Middle Mississippi River

Download or read book Geomorphology of the Middle Mississippi River written by Daryl B. Simons and published by . This book was released on 1974 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive study of the historical geomorphology of the Middle Mississippi River was made to determine the physical impact of river contraction works on river morphology and behavior, and subsequent effects on the side channels. The studies included physical model studies of the river and side channels, the combined effects of navigation improvement structures and flood protection works on flood stages, and a review of the history of development and modification of the Middle Mississippi River. (Modified author abstract).

Book Environmental Guidelines for Dike Fields

Download or read book Environmental Guidelines for Dike Fields written by Carey W. Burch and published by . This book was released on 1984 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Environmental Effects of Dikes and Revetments on Large Riverine Systems

Download or read book Environmental Effects of Dikes and Revetments on Large Riverine Systems written by Mark B. Sandheinrich and published by . This book was released on 1986 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: A review of pertinent research, suggests that dikes and revetments have short-term and long-term effects on major riverine ecosystems. Short-term effects may be beneficial and include increases in aquatic habitat diversity physical stability which, in turn, results in high densities and diversities of fish and macroinvertebrates within the main stem of the river. Dike fields are intermediate physically, chemically, and biologically to the main channel and backwaters of rivers. Dike fields often support the most diverse fish and macroinvertebrate community of any habitat within the river. But community composition is less stable than backwaters and is dependent upon river stage and water velocity. Moderate and slow-water areas within dike fields provide important spawning and nursery areas for many lotic species of fish within the modified river. Revetments of broken rock stabilize banks and provide additional hard substrate for colonization by dense populations of invertebrates. Interstitial spaces between rocks may provide areas of moderate flow for juvenile and forage fish. Long-term effects of river training structures may be detrimental to the biotic integrity of the river.

Book Journal of the Elisha Mitchell Scientific Society

Download or read book Journal of the Elisha Mitchell Scientific Society written by Elisha Mitchell Scientific Society (Chapel Hill, N.C.) and published by . This book was released on 1984 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vols. 20- include Proceedings of the North Carolina academy of science, 1902-

Book Physical and Hydrologic Characteristics of Aquatic Habitat Associated with Dike Systems in the Lower Mississippi River  River Mile 320 to 610  AHP

Download or read book Physical and Hydrologic Characteristics of Aquatic Habitat Associated with Dike Systems in the Lower Mississippi River River Mile 320 to 610 AHP written by Stephen P. Cobb and published by . This book was released on 1985 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book River Training Techniques

Download or read book River Training Techniques written by R. Blazejewski and published by CRC Press. This book was released on 1995-01-01 with total page 658 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text covers river training techniques. Divided into two parts, it discusses properties of rivers and fundamentals of river engineering and flood protection.

Book A Brief History and Summary of the Effects of River Engineering and Dams on the Mississippi River System and Delta

Download or read book A Brief History and Summary of the Effects of River Engineering and Dams on the Mississippi River System and Delta written by Jason Scott Alexander and published by . This book was released on 2012 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book List of Publications of the U S  Army Engineer Waterways Experiment Station

Download or read book List of Publications of the U S Army Engineer Waterways Experiment Station written by U.S. Army Engineer Waterways Experiment Station and published by . This book was released on 1993 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book The Improvement of the Lower Mississippi River for Flood Control and Navigation

Download or read book The Improvement of the Lower Mississippi River for Flood Control and Navigation written by United States. Mississippi River Commission and published by . This book was released on 1932 with total page 636 pages. Available in PDF, EPUB and Kindle. Book excerpt: