This brochure provides a summary of the information presented in FEMA P-484, Technical Manual: Conduits through Embankment Dams, including the effects of conduits on embankment dams, internal erosion and backward piping erosion, the factors that can lead to embankment dam failure, and best practices for conduits through embankment dams.
The dam owner is the frst line of defense in the appropriate maintenance and safe operation of dams. This brochure describes the dangers presented by problem vegetation on earthen embankment dams and discusses how to identify problem vegetation. A quick quiz is included for dam owners to determine whether their dam may be at risk for problems related to inappropriate vegetation.
Copy of workshop presentation. McLeod presents his personal perspective on EoR, Canadian Dam Association initiation of EoR guidance, Mount Polley case study, and BC Ministry of Energy and Mines', Association of Professional Engineers and Geoscientists of British Columbia's, and Canadian Dam Association's Code and Guidance Documents
Internal erosion occurring at federal (and nonfederal) embankment dams and levees poses a threat of failure and potential risk to public safety. This document presents a summary of current federal practices for monitoring and measuring seepage, identifying potential failure modes related to internal erosion, assessing risk related to internal erosion, and remediating internal erosion. While research continues into these processes, this document attempts to present the best understanding based on current federal agency practice. Hence, very recent or new, unproven technologies are not discussed.
This guidance is intended to support safe, responsible management of tailings across the global mining industry, with the ultimate goal of eliminating fatalities and catastrophic events. It provides guidance on good governance and engineering practices that will support continual improvement in the management of tailings facilities and help foster and strengthen a corporate safety culture, with focus in the six key areas outlined in the 2016 Tailings Governance Framework: 1) Accountability, Responsibility, and Competency; 2) Planning and Resourcing; 3) Risk Management; 4) Change Management; 5) Emergency Preparedness and Response; and 6) Review and Assurance
Tailings production is inherent to mining and metals processing and will remain so for the foreseeable future. ICMM believes that the application of appropriate design and management standards and practices can make tailings facilities safe. ICMM members commit to the prevention of catastrophic failures of tailings facilities and to the continual improvement in the design, construction and operation of tailings facilities.
Today, tens of thousands of conduits through embankment dams in the United States are aging and deteriorating. Many of these conduits were poorly constructed and are not frequently inspected, if at all. With each passing year, deteriorating conduits pose an increasingly greater risk for developing defects that can lead to embankment dam failure. This technical manual provides procedures and guidance for best practices for the design, construction, problem identification and evaluation, inspection, maintenance, renovation, and repair associated with conduits through embankment dams. The technical manual is intended for use by personnel familiar with embankment dams and conduits, such as designers, inspectors, construction oversight personnel, and dam safety engineers. The technical manual includes more than 280 illustrative figures, 34 case histories, and an extensive glossary.