- 産業: Government
- Number of terms: 15655
- Number of blossaries: 0
- Company Profile:
A U.S. Department of the Interior agency that oversees water resource management incuding the oversight and operation of numerous diversion, delivery, and storage projects the agency has built throughout the western United States for irrigation, water supply, and attendant hydroelectric power ...
The distance, measured along the axis or centerline crest of the dam at the top level of the main body of the dam or of the roadway surface on the crest, from abutment contact to abutment contact exclusive of an abutment spillway; provided that, if the spillway lies wholly within the dam and not in any area especially excavated for the spillway, the length includes the spillway. The length along the top of a dam. This also includes the spillway, powerplant, navigation lock, fish pass, etc., where these form part of the length of the dam. If detached from the dam, these structures should not be included.
Industry:Engineering
An incident resulting in the uncontrolled release of water from a dam. Destroyed and made useless, ceases to function as a dam. More severe and hazardous than a breach. See dam failure.
Industry:Engineering
The annual quantity of water that can be taken from a source of supply over a period of years without depleting the source beyond its ability to be replenished naturally in wet years.
Industry:Engineering
The combination of facilities, equipment, personnel, procedures, and communications operating within a common organizational structure to effectively respond to an emergency or disaster.
Industry:Engineering
An activity designed to introduce, discuss, and update emergency planning documents, organization structure, or early warning system (EWS) component to familarize key personnel with the emergency procedures and their responsibilities. This may be through a lecture, panel discussion, or general discussion and can include visual presentations. This should involve all personnel with a role in the plan, problem, or procedure. It should also include a review of past cases, if any, for lessons learned.
* Drill - An activity designed to evaluate a single emergency response function. This involves an actual field response such as making contacts to check the information included in the communication directory. A drill's effectiveness lies in the focus on a single or relatively limited portion of the overall response system in order to evaluate and improve that function.
* Tabletop Exercise - An informal activity involving discussions of actions to be taken on described emergency situations. A tabletop exercise is done without time constraints, which allows the participants to practice emergency situation problem solving, evaluate plans and procedures, and to resolve questions of coordination and assignment of responsibilities. A series of messages are issued to participants in the exercise, and they respond verbally to the simulated incident in a nonstressful atmosphere. This exercise should involve management, key agency staff, and personnel from outside organizations as appropriate.
* Functional Exercise - An activity in which participants respond in a coordinated manner to a timed, simulated incident that parallels a real operational event as close as possible. This exercise is generally conducted in an emergency operations center or Incident Command Post, and messages are passed to the participants in written form by telephone, radio, FAX, computer, or other method of communication. The functional exercise uses information such as emergency plans, maps, charts, and other information available in a real event and creates stress by increasing the frequency of messages, intensity of activity, and complexity of decisions and/or requirements for coordination. It does not involve actual mobilization of emergency response forces in the field. Participants should include management, key agency staff, and personnel from outside organizations as appropriate.
* Full-Scale Exercise - An activity in which emergency preparedness officials respond in a coordinated manner to a timed, simulated incident but includes the mobilization of field personnel and resources and the actual movement of emergency workers, equipment, and resources required to demonstrate coordination and response capability. This exercise is intended to evaluate the entire emergency organization or its major parts in an interactive manner over a substantial period of time. It mobilizes emergency officials in an emergency operations center plus the activation of one or more emergency functions outside of the center. Reclamation will not generally conduct this level of exercise, but will participate in exercises conducted by others when our facilities are involved.
Industry:Engineering
Non-utility owned electric resources. A non-utility power generator that is not a regulated utility, government agency, or qualifying facility (QF) under the Public Utility Regulatory Policies Act of 1978 (PURPA). IPPs sell the power they generate in the wholesale market, typically to electric utilities. The terms of power purchase agreements between IPPs and power purchasers are subject to approval by the Federal Energy Regulatory Commission (FERC).
Industry:Engineering
One of the following classifications is assigned to a dam following an onsite examination and subsequent analyses using available data and state-of-the-art knowledge:
: Satisfactory. - No existing or potential dam safety deficiencies are recognized. Safe performance is expected under all anticipated loading conditions, including such events as the maximum credible earthquake (MCE) and the probable maximum flood (PMF).
: Fair. - No existing dam safety deficiencies are recognized for normal loading conditions. Infrequent hydrologic and/or seismic events would probably result in a dam safety deficiency.
: Conditionally Poor. - A potential dam safety deficiency is recognized for unusual loading conditions that may realistically occur during the expected life of the structure. Conditionally Poor may also be used when uncertainties exist as to critical analysis parameters that identify a potential dam safety deficiency; further investigations and studies are necessary.
: Poor. - A potential dam safety deficiency is clearly recognized for normal loading conditions. Immediate actions to resolve the deficiency are recommended; reservoir restrictions may be necessary until the problem is resolved.
: Unsatisfactory. - A dam safety deficiency exists for normal loading conditions. Immediate remedial action is required for problem resolution.
Industry:Engineering
In blasting, the distance between the free face and the first row of holes or the distance between rows of holes parallel to the face. Apparent burden is the burden as outlined by the delay pattern.
Industry:Engineering
A review performed on a high- or significant-hazard dam every 6 years, which includes a field examination and a state-of-the-art review of a structure's design assumptions, construction practices, and integrity under various loading conditions. A detailed examination performed on dams with a senior dam engineer. Comprehensive facility reviews are designed to gather together appropriate technical disciplines for a brief, but intensive assessment of a dam's performance history, the dam safety analyses that have been performed to date, and the current condition of the dam and damsite. The comprehensive facility review covers both O&M and dam safety issues. Comprehensive facility reviews are generally followed every 3 years by a periodic facility review.
Industry:Engineering
The process of pressure grouting deep holes under a dam or in an abutment to form a watertight barrier and effectively seal seams, fissures, fault zones, or fill cavities in the foundation or abutment.
Industry:Engineering
