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.
This brochure is designed to help the dam owner manage and reduce nuisance wildlife and wildlife damages at earthen dams. The brochure provides information on the types of nuisance wildlife damages, wildlife observation during routine inspections, wildlife identifcation, and basic damage repair.
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.
This document provides procedures and guidance for best practices concerning embankment dam flter design and construction and represents an effort to collect and disseminate current information and experience having a technical consensus. This document is intended for use by personnel familiar with embankment dams, such as designers, inspectors, construction oversight personnel, and dam safety engineers.
Safe dam operation includes comprehensive, state-of-practice guidance on timely inspection and observation of wildlife damages, accurate wildlife identification and mitigation, and appropriate dam design, repair, and preventive measures. This technical manual provides guidance to dam specialists, including dam owners, operators, inspectors, state dam officials, and consulting engineers, in the following areas: (1) the impacts wildlife can have on earthen dams; (2) habitat, range, description, and behavior of common nuisance wildlife to aid in the proper identification at the dam; (3) state-of-practice methods to prevent and mitigate adverse wildlife impacts on earthen dams; and (4) state-of-practice design guidance for repair and preventive design associated with nuisance wildlife intrusion.
Safe dam operation includes comprehensive, state-of-practice guidance on timely inspection and observation of wildlife damages, accurate wildlife identifcation and mitigation, and appropriate dam design, repair, and preventive measures. This technical manual provides guidance to dam specialists, including dam owners, operators, inspectors, state dam offcials, and consulting engineers, in the following areas: (1) the impacts wildlife can have on earthen dams; (2) habitat, range, description, and behavior of common nuisance wildlife to aid in the proper identifcation at the dam; (3) state-of-practice methods to prevent and mitigate adverse wildlife impacts on earthen dams; and (4) state-of-practice design guidance for repair and preventive design associated with nuisance wildlife intrusion.
The purpose of this technical manual for dam owners is to advance awareness of the characteristics and seriousness of dam safety problems associated with tree and woody vegetation growth impacts on earthen dams, provide a higher level of understanding of dam safety issues by reviewing current damage control policies, provide state-of-practice guidance for remediation design considerations associated with damages associated with tree and woody vegetation growth on earthen dams, and to provide rationale and state-of-practice techniques and procedures for management of desirable and undesirable vegetation on earthen dams.
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.
This technical manual provides procedures and guidance for best practices for the design, construction, problem identifcation 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 DVD format includes an extensive collection of additional reading references.
This technical manual provides the procedures and guidance for best practices concerning the design, construction, problem identifcation and evaluation, inspection, maintenance, renovation, and repair associated with plastic pipe used in embankment dams. The manual provides in-depth analyses of loading conditions, structural design, and hydraulic design of plastic pipe, and is intended for use by personnel familiar with embankment dams, drains, siphons, and conduits, such as designers, inspectors, construction oversight personnel, and dam safety engineers.