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2. Flood control in the Netherlands - Wikipedia

   en.wikipedia.org/wiki/Flood_control_in_the...

   Flood control is an important issue for the Netherlands, as due to its low elevation, approximately two thirds of its area is vulnerable to flooding, while the country is densely populated. Natural sand dunes and constructed dikes, dams, and floodgates provide defense against storm surges from the sea. River dikes prevent flooding from water ...

3. Trench drain - Wikipedia

   en.wikipedia.org/wiki/Trench_drain

   Trench drain. A trench drain (also channel drain, line drain, slot drain, linear drain, or strip drain) is a specific type of floor drain containing a dominant trough- or channel-shaped body. It is used for the rapid evacuation of surface water or for the containment of utility lines or chemical spills. Employing a solid cover or grating that ...

4. Drainage - Wikipedia

   en.wikipedia.org/wiki/Drainage_channel

   French drains, which are gravel-filled trenches with perforated pipes at the bottom, are the most common type of subsurface drain. Trench drains, which are similar but shallower and wider, are also used in some situations. Reasons for artificial drainage An agricultural drainage channel outside Magome, Japan after a heavy rain. Protuberances ...

5. List of Nintendo DS accessories - Wikipedia

   en.wikipedia.org/wiki/List_of_Nintendo_DS...

   List of Nintendo DS accessories. Game Boy Advance game slot on the Nintendo DS (above) and the Game Boy Advance SP (below). Many accessories used the Game Boy Advance slot to connect to the Nintendo DS. This is a list of accessories for the Nintendo DS. Accessories for the Nintendo DS often came in two forms: those that worked with Slot 1 as a ...

6. French drain - Wikipedia

   en.wikipedia.org/wiki/French_drain

   In most homes, an external French drain or drain tile is installed around the foundation walls before the foundation soil is backfilled. It is laid on the bottom of the excavated area, and a layer of stone is laid on top. In many cases, a filter fabric is then laid on top of the stone to keep fine sediments and particles from entering.

7. Drainage tunnel - Wikipedia

   en.wikipedia.org/wiki/Drainage_tunnel

   A drainage tunnel, called an emissary in ancient contexts, is a tunnel or channel created to drain water, often from a stagnant or variable-depth body of water. It typically leads to a lower stream or river, or to a location where a pumping station can be economically run. Drainage tunnels have frequently been constructed to drain mining ...