An apparatus and system for modifying {HEAD ~ the flow} of {TAIL ~ water} in a channel are also disclosed 
of
An apparatus and system for modifying { HEAD ~ the flow } of { TAIL ~ water } in a channel are also disclosed
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH