Dam

This is the famous John B. Robert Dam.  The purpose of this particular dam is to collect sudden floods from our mountain;  if ever it overflows, it has these concrete barriers that would break up any fast-flowing water.

I say it is famous because it is widely photographed in movie sets...I even remember one series that made this location the bus stop to heaven.  

Really...
https://breakingbad.fandom.com/wiki/John_B._Robert_Dam