- 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 movement of water by gravity downward through the soil profile beyond the root zone; this water is not used by plants. Percolation of irrigation water past the plant root zone to regions of deeper ground-water aquifers.
Industry:Engineering
Vertical wells or boreholes downstream of, or in downstream shoulder of, an embankment dam to collect and control seepage through or under the dam and so reduce water pressure. A line of such wells forms a drainage curtain.
Industry:Engineering
Vertical wells or boreholes downstream of, or in downstream shoulder of, an embankment dam to collect and control seepage through or under the dam and so reduce water pressure. A line of such wells forms a drainage curtain.
Industry:Engineering
Evaluation and report performed by members of the Early Warning System design team and/or community planners to assess the warning and evacuation capabilities of local jurisdictions located downstream from Reclamation dams.
Industry:Engineering
Maximum quantity of water that can be annually withdrawn from a ground water basin over a long period of time (during which water supply condditions approximate average conditions) without developing an overdraft condition.
Industry:Engineering
A term expressing the amount of explosives used to break a quantity of rock. Normal units for the powder factor are lb/yd3 or kg/m3; however, lb/ton and kg/ton are also used as well as the reciprocals of all of these terms.
Industry:Engineering
A term expressing the amount of explosives used to break a quantity of rock. Normal units for the powder factor are lb/yd3 or kg/m3; however, lb/ton and kg/ton are also used as well as the reciprocals of all of these terms.
Industry:Engineering
Time measured from the start of a dam breach to flooding at a particular location. The flood level corresponding to that travel time is usually either the arrival of the leading flood wave or the peak flow at that location.
Industry:Engineering
A gate used either for temporary closure of a channel or conduit before dewatering it for inspection or maintenance or for closure against flowing water when the head difference is small (e.g., for diversion tunnel closure).
Industry:Engineering
Soil materials that when unconfined have little or no strength when air-dried and that have little or no cohesion when submerged. Soil that has little tendency to stick together whether wet or dry, such as sands and gravels.
Industry:Engineering
