drainage depression definition

drainage depression means a level to gently inclined shallow, open depression with a smoothly concave cross-section, rising to moderately inclined hill slopes;
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drainage depression means a level to gently inclined shallow, open depression with a smoothly concave cross-section, rising to moderately inclined hillslopes;
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drainage depression means a level to gently inclined shallow, open depression, generally with a smoothly concave cross-section, rising to moderately inclined hill slopes, that conveys runoff water only during or immediately after (that is, only hours or days after) periods of heavy rainfall.
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Related to drainage depression

  • Drainage means the removal of surface water or groundwater

  • Drainage system means one or more artificial ditches, tile drains or similar devices which collect surface runoff or groundwater and convey it to a point of discharge.

  • drainage work means any watercourse and includes any land which is expected to provide flood storage capacity for any watercourse and any bank, wall, embankment or other structure, or any appliance, constructed or used for land drainage or flood defence;

  • Drainage area means a geographic area within which stormwater, sediments, or dissolved materials drain to a particular receiving waterbody or to a particular point along a receiving waterbody.

  • Mine drainage means any drainage, and any water pumped or siphoned, from an active mining area or a post-mining area. The abbreviation “ml/l” means milliliters per liter.