Download or read book Environmental Assessment Water Control Structure Improvements in Mississippi River Pools 20 and 21 River Miles 347 to 350 and 332 to 333 Lewis Country Missouri and Hancock County Illinois written by ARMY ENGINEER DISTRICT ROCK ISLAND IL. and published by . This book was released on 1987 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: The U.S. Army Corps of Engineers, Rock Island District, is responsible for maintaining the Mississippi River Nine-Foot Channel Navigation Project in Pools 11 to 22. A navigation channel depth of 9 feet minimum must be maintained from early spring to winter for commercial towboat traffic. The 9-foot depth is basically maintained by the series of locks and dams along the river. The river, however, is still in a semi-natural condition in terms of sediment (bedload) transportation. At times, this sediment accumulates at various locations in the navigation channel and must be removed by dredging in order to prevent channel closure and stoppage of commercial traffic. Sometimes this shoaling (sediment accretion) happens so rapidly that emergency dredging is required to reopen the channel where towboats run aground. The purpose of these structures is to direct the flow of water away from shorelines, side channels, etc., and into the main channel. Basically, these structures constrict the river flow into a more narrow cross section. This reduced cross section causes the water velocity to increase and subsequently to transport more sediment. (sdw).
Download or read book Environmental Assessment written by United States. Army. Corps of Engineers. Rock Island District and published by . This book was released on 1987 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1990 with total page 978 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Pollution Control written by and published by . This book was released on with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Annual Index written by and published by . This book was released on 1990 with total page 1608 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Water Resources Planning for the Upper Mississippi River and Illinois Waterway written by National Research Council and published by National Academies Press. This book was released on 2005-11-18 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt: The U.S. Army Corps of Engineers recently completed its feasibility study for the Upper Mississippi River-Ilinois Waterway, which was one of the agency's longest and most complicated studies in its history. The first two reports from this WSTB committee reviewed analytical aspects of the Corps feasibility study. Water Resources Planning for the Upper Mississippi River and Illinois Waterway considers the broader issue of managing the multiple resources of the Upper Mississippi River and Illinois Waterway, especially with regard to several, recently-issued NRC reports on Corps of Engineers planning procedures. The report finds that a key issue regarding planning decisions on these river systems is the ambiguity related to several different pieces of legislation and acts that govern river management, and thus recommends that the administration and Congress clarify the federal intent for managing this river and waterway system. The report recommends an independent, retrospective reivew of the experience with a federal inter-agency Principals Group, which was convened to provide guidance to the Corps study. It is also recommended that the Corps strive to incorporate flexible, adaptive management principles through its entire water planning program, including operations of the lock and dam system.
Download or read book Draft Programmatic Environmental Impact Statement written by United States. Army. Corps of Engineers. Rock Island District and published by . This book was released on 1988 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mississippi River Water Quality and the Clean Water Act written by National Research Council and published by National Academies Press. This book was released on 2008-03-08 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Mississippi River is, in many ways, the nation's best known and most important river system. Mississippi River water quality is of paramount importance for sustaining the many uses of the river including drinking water, recreational and commercial activities, and support for the river's ecosystems and the environmental goods and services they provide. The Clean Water Act, passed by Congress in 1972, is the cornerstone of surface water quality protection in the United States, employing regulatory and nonregulatory measures designed to reduce direct pollutant discharges into waterways. The Clean Water Act has reduced much pollution in the Mississippi River from "point sources" such as industries and water treatment plants, but problems stemming from urban runoff, agriculture, and other "non-point sources" have proven more difficult to address. This book concludes that too little coordination among the 10 states along the river has left the Mississippi River an "orphan" from a water quality monitoring and assessment perspective. Stronger leadership from the U.S. Environmental Protection Agency (EPA) is needed to address these problems. Specifically, the EPA should establish a water quality data-sharing system for the length of the river, and work with the states to establish and achieve water quality standards. The Mississippi River corridor states also should be more proactive and cooperative in their water quality programs. For this effort, the EPA and the Mississippi River states should draw upon the lengthy experience of federal-interstate cooperation in managing water quality in the Chesapeake Bay.
Download or read book Final Environmental Impact Statement Second Lock at Locks and Dam 26 replacement written by and published by . This book was released on 1988 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Assessment Major Rehabilitation Locks and Dams 2 Through 10 Upper Mississippi River written by United States. Army. Corps of Engineers. St. Paul District and published by . This book was released on 1987 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nutrient Control Actions for Improving Water Quality in the Mississippi River Basin and Northern Gulf of Mexico written by National Research Council and published by National Academies Press. This book was released on 2009-07-13 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt: A large area of coastal waters in the northern Gulf of Mexico experiences seasonal conditions of low levels of dissolved oxygen, a condition known as hypoxia. Excess discharge of nutrients into the Gulf of Mexico from the Mississippi and Atchafalaya rivers causes nutrient overenrichment in the gulf's coastal waters and stimulates the growth of large algae blooms. When these algae die, the process of decomposition depletes dissolved oxygen from the water column and creates hypoxic conditions. In considering how to implement provisions of the Clean Water Act to strengthen nutrient reduction objectives across the Mississippi River basin, the U.S. Environmental Protection Agency (EPA) requested advice from the National Research Council. This book represents the results of the committee's investigations and deliberations, and recommends that the EPA and U.S. Department of Agriculture should jointly establish a Nutrient Control Implementation Initiative to learn more about the effectiveness of actions meant to improve water quality throughout the Mississippi River basin and into the northern Gulf of Mexico. Other recommendations include how to move forward on the larger process of allocating nutrient loading caps-which entails delegating responsibilities for reducing nutrient pollutants such as nitrogen and phosphorus-across the basin.
Download or read book Locks and Dam No 26 replacement Upper Mississippi River Basin Mississippi River Alton Illinois Missouri and Illinois Draft Environmental Statement Supplement written by United States. Army. Corps of Engineers and published by . This book was released on 1975 with total page 752 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mississippi River Water Quality and Interstate Collaboration written by National Research Council and published by National Academies Press. This book was released on 2014-08-06 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: Summary of a Workshop on Mississippi River Water Quality Science and Interstate Collaboration summarizes presentations and discussions of Mississippi River and basin water quality management, monitoring, and evaluation programs that took place at a workshop that was held in St. Louis on November 18-19, 2013. The workshop examined a wide array of challenges and progress in water quality monitoring and evaluation in states along the Mississippi River corridor, and provided a forum for experts from U.S. federal agencies, the Mississippi River states, nongovernmental organizations, and the private sector to share and compare monitoring and evaluation experiences from their respective organizations.
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 496 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Upper Mississippi River System Environmental Management Program written by and published by . This book was released on 1991 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mississippi River Levees and Channel Improvements MO IL KY TN AR MS written by and published by . This book was released on 1976 with total page 626 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Flood Control in the Lower Mississippi River Valley written by United States. Mississippi River Commission and published by . This book was released on 1965 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
