Problem
Water flow obstructions in watercourses
Other Names:
Blockage of surface water flowsObstructed rivers
Nature:
Flow obstructions may be caused by ice, may inhibit drainage or cause erosion, and may ultimately lead to flooding. They may also be unrelated to these conditions, constituting a hazard in their own right to such activities as hydropower generation and navigation. They may even cause the displacement of river channels. Obstructions to the flow of a watercourse may result from human activity, but are often caused by events such as landslides and earthquakes, by natural logjams, or by such processes as the accumulation of sediment or of debris.
Broader Problems:
Variable river channelInterruption of water coursesWater-related hazards and dangers Narrower Problems:
Seabed obstructions as shipping hazards Related Problems:
Blockage of irrigation canals Aggravates:
FloodsAcidic soilsBreached leveesInadequate land drainageEnvironmentally destructive redirection of water flows Strategies:
Improving waterwaysObstructing watercourses Subject(s):
Fundamental Sciences → Liquid stateHydrology → Rivers and lakes
Hydrology → Water
Related UN Sustainable Development Goals:
Problem Type:
D: Detailed problems Date of last update
04.10.2020 – 22:48 CEST