This document provides guidance to help dam owners, in coordination with emergency management authorities, effectively develop and exercise emergency action plans for dams. The purpose of the guidance in this document is to meet that need. This document is an update of FEMA P-64, Federal Guidelines for Dam Safety: Emergency Action Planning for Dam Owners (2004).
This Dam Incident Planning Guide supports state, local, tribal, and territorial emergency managers in planning for dam incidents and failures by summarizing the concepts that a community should consider when creating dam incidentspecifc elements of local emergency operations plans. This guide builds on Comprehensive Preparedness Guide (CPG) 101: Developing and Maintaining Emergency Operations Plans.1 It also provides guidance for dam owners and operators on how to engage with emergency managers prior to an incident to ensure a well-coordinated response. Appendix A provides a general template for a community dam incident plan that can be adapted to meet each communitys needs.
This manual presents guidance on procedures for use in the engineering design, construction monitoring, operation, and inspection of coal refuse impoundments and embankments in the United States.
Manual summarizing the methodologies used by the bureau to perform flood hydrology studies.
The purpose of this document is to provide dam safety professionals with guidance on how to prepare dam breach inundation modeling studies and conduct mapping that can be used for multiple purposes, including dam safety, hazard mitigation, consequence evaluation, and emergency management including developing emergency action plans. This guidance is intended to provide a consistent approach that can be applied across the country.
These guidelines provide thorough and consistent procedures for selecting and accommodating infow design foods (IDFs), the food fow above which the incremental increase in water surface elevation downstream due to the failure of a dam or other water retaining structure no longer presents an unacceptable additional downstream threat. These guidelines are not intended to provide a complete manual of all procedures for estimating IDFs; the selection of procedures is dependent upon available hydrologic data and individual watershed characteristics.
Inadequate spillway capacity is a common problem with many dams. Thousands of dams throughout North America have been determined to have inadequate spillway capacity and would be overtopped during the infow design food. Dam failure from overtopping can lead to a potential for loss of life and signifcant downstream damages. Thus, new design approaches have been developed that may allow for the dam to be safely overtopped. The design and construction of overtopping protection for dams is increasingly being viewed as a viable alternative to larger spillways as developing watersheds or changing hydrology produce higher peak fows.