EP 1110-2-13
28 Jun 96
Chapter 6
effects or high pool levels.
Emergency Action Plans (EAP)
c.
Dam failure.
6-1. General
6-3. Components of Emergency Action Plan
a.
Definitions.
The principal components of EAPs (including agency
(1) Emergency - An emergency, in terms of
responsible for preparation) are as follows (U.S. Army
dam operation, is defined as a condition which
Corps of Engineers, Hydrologic Engineering Center
develops unexpectedly, endangers the structural
1980):
integrity of the dam and/or downstream property and
human life, and requires immediate action.
a. Emergency identification subplan (Corps of
Engineers). The object of this subplan is to describe
(2) EAP - An EAP is a plan of action to reduce
procedures and means for ensuring reliable
the potential for property damage and loss of life in an
identification and evaluation of existing or potential
area affected or about to be affected by a dam failure or
emergencies. The major elements of the subplan are:
large flood. It includes both the portion of a dam safety
plan prepared by the Corps of Engineers and the
(1) Listing of the conditions which could indicate
complementary evacuation plan prepared by non-
an existing or potential emergency.
Federal interests.
(2) Description of the data and information
b. Background. Corps of Engineers major
collection system, monitoring arrangements, inspection
subordinate command offices were instructed in March
procedures, and other provisions for early detection of
1978 to begin preparation of flood EAPs for dams
conditions indicating an existing or potential emergency.
under their jurisdiction. Initially the effort was directed
to delineate areas downstream from the dams that
(3) Procedures, aids, instructions, and other
would be flooded in the event of dam failure. The
provisions for interpreting information and data to
product of these efforts was inundation area maps
assess the severity and magnitude of any existing or
(ER 1130-2-419). In June 1980 the Corps of
potential emergency.
Engineers issued detailed instructions for the
preparation of flood EAPs (U.S. Army Corps of
b. Emergency operations and repair subplan
Engineers, Hydrologic Engineering Center 1980,
(Corps of Engineers). The objectives of this subplan are
1982). Subsequently, in August 1983, the Corps of
to guide immediate operational decisions in the event of
Engineers distributed case studies of an EAP and
various types of emergencies; identify the need for
evacuation plan to field offices (U.S. Army Corps of
equipment, material, labor, and other necessities for
Engineers, Hydrologic Engineering Center 1983a,
carrying out emergency repairs; and describe the
1983b).
procedures for securing and employing needed
equipment, material, labor, and other necessities. The
major elements of the subplan are:
6-2. Scope of Emergency Action Plan
(1) Identification of the appropriate response to
Guidance (U.S. Army Corps of Engineers, Hydrologic
the type and severity of existing or potential
Engineering Center 1980) has been provided for
emergencies.
preparation of EAPs to deal with potential emergencies
caused by
(2)
Emergency gate operation.
a. Spillway discharges sufficiently large to
(3)
Reservoir dewatering plan.
cause flooding in downstream areas.
6-1
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