Dig a trench filled with water rather than build the wall?

  • #1
SunRay-dvsh
20
1
Might sound really stupid, but will it be more economical if instead of wall, a WIDE trench filled with water from adjoining ocean and river is allowed to flow in.

With both the ends of the trench connected to the ocean, we can allow water to flow in during high tides, and flown out during low tides.
 

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  • #2
berkeman
Mentor
64,177
15,400
Thread closed temporarily for Moderation...
 
  • #3
berkeman
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Effective immediately, in General Discussion, the topic of politics as a thread starter has been banned. Political points/discussion may be used within threads but a thread may not have a political origin.

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