On Mon, 16 May 2016 20:38:34 -0500, "Dean Hoffman"
wrote:
My parents' neighbors had this version:
http://www.grahamindustries.ca/wp-content/uploads/2010/10/CattleGuard.jpg
People always called it a cattle guard. I have no idea if it would work
for other livestock.
I'm familiar with this type in Florida. They were made from rail road
steel rails, spaced apart some distance. My understanding, the cattle
are in fear of crossing them. Hogs need a pen