| Term No. | Term Name/Term Description | Action |
|---|
| 1055 |
| Fault dam spring | | Groundwater discharge to the earth`s surface above a reverse fault, the depressed bedrock block being covered with a thick deposit of alluvium and the raised block presenting a barrier to the flow of groundwater...... | | Similar Terms |
| 1077 |
| Groundwater dam | | A natural or artificial body of material that is impermeable or has only low permeability and which occurs below the surface in such a position that it impedes the horizontal movement of groundwater and consequently causes a pronounced difference in the level of the water table on its opposite sides...... | | Similar Terms |
| 1264 |
| Retention dams | | Small earthen dams designed to retain water for only short periods of time to prevent excessively rapid runoff and erosion...... | | Similar Terms |
| 1284 |
| Quondam | | An outlet that is no longer functioning. . | | Similar Terms |
| 1354 |
| Detention dam | | A dam built to store streamflow or surface runoff and to control the release of such stored water. | | Similar Terms |
| 1355 |
| Diversion dam | | A barrier built across a stream to divert all or some of the water. | | Similar Terms |
| 1384 |
| Sudd, or Sadd (Arabic : barrier or dam) | | Large floating island of vegetative matter impending navigation on the Upper White Nile. Also an earthen embankment blocking a river or branch of a river or ring bund around a work under construction in the bed of a river...... | | Similar Terms |
| 1561 |
| Basket dam | | A sack dam composed of boulders held in a woven wire sack and piled up to form a barrier or jetty. | | Similar Terms |
| 1562 |
| Sausage dam | | A type of deflection or diversion dam composed of layers of boulders, overlaid and held in place by hogwire fencing; distinguished from a basket dam in that the latter is a woven wire sack filled with boulders and piled up as in a sack dam. Both are especially adapted to jetties and river bank protection...... | | Similar Terms |
| 1563 |
| Crib, Crib dam, Pigsty work, Pigstying | | A type of construction consisting of pieces of timber fixed together to form bays or cells which are filled with stone or other suitable material. May be of various shapes. Used for dams, groynes, bank protection, etc.; sometimes called `pigsty work` or `pigstying`, though the latter is also used for timber work similar to cribwork but without the ..... | | Similar Terms |
| 1999 |
| Sill dam | | A dam, generally of strong brushwood mattress weighted with heavy rip-rap, constructed on the sea side in the foreground, for the purpose of guarding against scouring of the sea bottom by the overflowing water and consequent damage to the structures and other works...... | | Similar Terms |
| 2248 |
| Similar Terms |
| 2249 |
| Open weir, or Open diversion dam | | A diversion weir across a river to produce least obstruction to the flow. It comprises undersluices and several other bays having falling shutters fitted on a permanent structure...... | | Similar Terms |
| 2255 |
| Fixed buttress weir, Ambursen dam or Ambursen weir | | A fixed dam consisting of water-supporting upstream face supported by buttresses which are equally spaced walls or struts proportioned to transmit the water load and the weight of the structure, to the foundations. Note - It is classified as open or closed Ambursen weir according to the absence or provision of downstream face slab.(originated by Sw..... | | Similar Terms |
| 2327 |
| Dam | | A barrier usually on an important scale across a watercourse, for the purpose of impounding water or creating a reservoir (i) to raise water level, (ii) to divert water therefrom into a conduit or channel, (iii) to create a hydraulic head that can be used to generate power, (iv) to improve river navigability by means of regulated releases of stored..... | | Similar Terms |
| 2328 |
| Check dam | | Small dam constructed in a gully or other small watercourse to decrease the streamflow velocity, minimize channel scour and promote deposition of sediment...... | | Similar Terms |
| 2330 |
| Masonry dam | | A dam composed of one or more of the following materials : bricks or stone masonry or concrete (plain, reinforced, prestressed)...... | | Similar Terms |
| 2331 |
| Masonry-cum-earth dam | | A dam comprising a portion made of earth and a part in masonry along its length (length of spillway portion being excluded)...... | | Similar Terms |
| 2332 |
| Framed dam | | A barrier generally built of timber or steel framed to form a water face supported by struts. | | Similar Terms |
| 2333 |
| Timber dam | | A framed dam where the material used is timber. | | Similar Terms |
| 2334 |
| Steel dam | | A dam built of steel deck supported on inclined steel struts. There are two general types of this kind of dam : (i) direct strutted steel dam wherein the load is transferred from the deck to the foundations through the inclined struts; (ii) cantilevered steel dam consisting of variations of the direct strutted type where the section of the bend sup..... | | Similar Terms |
| 2335 |
| Gravity dam, Solid gravity dam, Curved gravity dam, or Gravity arch dam | | It is customary to confine the term `gravity dam` to solid masonry or concrete dams that resist their imposed loading by the weight of the structures themselves. However, if the dam is sufficiently curved upstream in plan for its entire length, a portion of the imposed loading may be borne by arch action such dams are called `gravity arch dams`...... | | Similar Terms |
| 2336 |
| Similar Terms |
| 2337 |
| Buttress dam | | A dam usually of reinforced concrete, consisting of upstream face or deck and buttresses. The water bearing members (upstream face or deck) are supported upon the buttresses and span between them. The load is tranferred to the foundations through the buttresses...... | | Similar Terms |
| 2341 |
| Flat slab buttress dam, Flat deck dam, Deck dam, Slab and buttress dam, ,Fixed slab buttress dam, Fixed deck dam, Free deck dam, or Cantilever buttress dam | | A dam usually of reinforced concrete consisting essentially of slabs supported by transverse buttresses. The load is taken by the slabs and transferred to the foundations through the buttresses. The slab may be (i) integrally cast with the buttresses, (ii) freely supported at the buttresses, or (iii) cantilevered from the buttresses. The dams are a..... | | Similar Terms |
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