Here's a link to a map of the Rio Grande.
If a fence is so simple just draw a line where it would go, now remember that it is a floodplain and if you create a dam it will flood the surrounding area, if you make it straight you will have to take a lot of land from citizens.
https://www.google.com/maps/search/rio+grande+valley/@26.1234143,-98.3326868,9.73z

Here's a link to a map of the Rio Grande.
If a fence is so simple just draw a line where it would go, now remember that it is a floodplain and if you create a dam it will flood the surrounding area, if you make it straight you will have to take a lot of land from citizens.
https://www.google.com/maps/search/rio+grande+valley/@26.1234143,-98.3326868,9.73z
I think this issue was covered in great detail with the CATO analysis I posted. If I remember Jim called it idiotic.

Just trying to make it simple
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