[texanyankee]

"No fence on A RIVER."

I agree. I can understand building a fence in wide open places, but to build a fence along the Rio Grande makes no sense....especially economically.

[muawiyah]

Folks build large structures over rivers all the time. Today I saw several such things ~ I was neither shocked nor amazed.

Just how primitive is Texas that you can believe we can't construct things on, above, under, or in a river?

You've seen those big things in the sky flying around ~ glinting in the Sun? We call them airplanes. They carry people.