Download or read book Control of Underseepage Mississippi River Levees written by C. I. Mansur and published by . This book was released on 1955 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Santa Ana River Mainstem Project written by Brian M. Moore and published by . This book was released on 1996 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Santa Ana River Main Stem and Santiago Creek written by and published by . This book was released on 1978 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Santa Ana River Flood Control Project Auxiliary Dike and Floodwall written by and published by . This book was released on 2010 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book CALFED Levee Stability Program California written by and published by . This book was released on 2006 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Levees and the National Flood Insurance Program written by National Research Council and published by National Academies Press. This book was released on 2013-07-18 with total page 275 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Federal Emergency Management Agency's (FEMA) Federal Insurance and Mitigation Administration (FIMA) manages the National Flood Insurance Program (NFIP), which is a cornerstone in the U.S. strategy to assist communities to prepare for, mitigate against, and recover from flood disasters. The NFIP was established by Congress with passage of the National Flood Insurance Act in 1968, to help reduce future flood damages through NFIP community floodplain regulation that would control development in flood hazard areas, provide insurance for a premium to property owners, and reduce federal expenditures for disaster assistance. The flood insurance is available only to owners of insurable property located in communities that participate in the NFIP. Currently, the program has 5,555,915 million policies in 21,881 communities3 across the United States. The NFIP defines the one percent annual chance flood (100-year or base flood) floodplain as a Special Flood Hazard Area (SFHA). The SFHA is delineated on FEMA's Flood Insurance Rate Maps (FIRM's) using topographic, meteorologic, hydrologic, and hydraulic information. Property owners with a federally back mortgage within the SFHAs are required to purchase and retain flood insurance, called the mandatory flood insurance purchase requirement (MPR). Levees and floodwalls, hereafter referred to as levees, have been part of flood management in the United States since the late 1700's because they are relatively easy to build and a reasonable infrastructure investment. A levee is a man-made structure, usually an earthen embankment, designed and constructed in accordance with sound engineering practices to contain, control, or divert the flow of water so as to provide protection from temporary flooding. A levee system is a flood protection system which consists of a levee, or levees, and associated structures, such as closure and drainage devices, which are constructed and operated in accordance with sound engineering practices. Recognizing the need for improving the NFIP's treatment of levees, FEMA officials approached the National Research Council's (NRC) Water Science and Technology Board (WSTB) and requested this study. The NRC responded by forming the ad hoc Committee on Levee and the National Flood Insurance Program: Improving Policies and Practices, charged to examine current FEMA treatment of levees within the NFIP and provide advice on how those levee-elated policies and activities could be improved. The study addressed four broad areas, risk analysis, flood insurance, risk reduction, and risk communication, regarding how levees are considered in the NFIP. Specific issues within these areas include current risk analysis and mapping procedures behind accredited and non-accredited levees, flood insurance pricing and the mandatory flood insurance purchase requirement, mitigation options to reduce risk for communities with levees, flood risk communication efforts, and the concept of shared responsibility. The principal conclusions and recommendations are highlighted in this report.

Download or read book Investigation of Underseepage Lower Mississippi River Levees written by Waterways Experiment Station (U.S.) and published by . This book was released on 1941 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book LEVSEEP Analysis Software for Levee Underseepage and Rehabilitation written by and published by . This book was released on 1995 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: The computer program LEVSEEP version 3.0 is presented for use in the analysis of levee underseepage. This version of the program includes a two-layer analysis model for levees with a top blanket over a pervious foundation. The software calculates seepage flow and substratum pressure for either physical and geometric properties (initial conditions) or field piezowmeter readings; analyzes the effects of various control measures (namely, landside berms, riverside blankets, cutoffs, and relief wells); plots cross sections, piezometer data, and control measures; provides quantity and cost estimates of each of these control measure alternatives; and gives a complete summary of all calculations. The procedures for berm analysis employed within LEVSEEP reflect the current Corps guidance discussed in EM 1110-2-1913 (Headquarters, Department of the Army 1978). The procedures for riverside blanket analysis are as presented in TM 3A24 (U.S. Army Engineer Waterways Experiment Station 1956). Procedures for analysis of cutoffs are based on the method of fragments as presented by Harr (1962). The procedures for relief well system analysis reflect Corps guidance as presented in EM 1110-2-1913. Specific equations and procedures used for well analysis were taken from TM 3A24 and Engineer Bulletin 55-11 (Headquarters, Department of the Army 1955). The well procedure is for infinite, partially penetrating, or fully penetrating well systems under artesian flow; it does not apply to finite length systems or pumped systems. Example problems and case studies are presented LEVSEEP provides a convenient analysis tool that should allow designers to approximately model actual field conditions. However, flood protection is a complex system involving design, construction, maintenance, and performance evaluation of levees.

Download or read book Recommended Plan of Improvement for Flood Control and Allied Purposes written by United States. Army. Corps of Engineers. Los Angeles District and published by . This book was released on 1975 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Great American Levees written by Haviland, Dozier & Tibbetts, San Francisco and published by . This book was released on 1913 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Recommendations of the National Committee on Levee Safety written by United States. Congress. House. Committee on Transportation and Infrastructure. Subcommittee on Water Resources and Environment and published by . This book was released on 2009 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Spillways on River Levees written by Gérard Degoutte and published by Editions Quae Gie. This book was released on 2022-02-03 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Levees are built on many rivers and mountain torrents to protect populations against floods. During medium floods, a well-constructed levee offers sufficient protection without requiring additional hydraulic structures. But this same levee represents a source of danger during high floods, since there is a risk of overtopping. Water that spills over a levee may create a breach that could potentially provoke flash flooding in the area it was supposed to protect, endangering human lives and infrastructure.It is therefore advisable to equip levee systems with spillways, which are common appurtenant structures on dams. Yet spillways on levees play a far more complex role than those on dams, from securing protected areas to flood control. These structures can function as safety spillways or diversion spillways, or both (especially the older ones). This technical handbook, first published in French in 2012, covers different types of spillways on river levees, including their function, hydraulics, river morphology, civil engineering, and flood management.Written by a working group led by INRAE, it is intended for levee managers, control authorities, engineering firms, and hydraulics or civil engineering students. Given increasing international interest in levees and flood protection systems, particularly following ICOLD's creation of a Technical Committee on Levees, INRAE decided to update and translate this guide into English to share the French experience.

Download or read book LEVSEEP written by Anthony L. Brizendine and published by . This book was released on 1995 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book H R 4650 the National Levee Safety Program Act written by United States. Congress. House. Committee on Transportation and Infrastructure. Subcommittee on Water Resources and Environment and published by . This book was released on 2006 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Harrisonville and Ivy Landing Drainage and Levee District No 2 Illinois written by United States. Army. Office of the Chief of Engineers and published by . This book was released on 1962 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book American River Watershed California written by United States. Office of the Assistant Secretary of the Army (Civil Works) and published by . This book was released on 2013 with total page 1542 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Levee System Integrity Program Plan written by CALFED Bay-Delta Program and published by . This book was released on 1999 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt: