The present invention relates to {HEAD ~ an apparatus}, system, and method for modifying the flow of {TAIL ~ water} in a channel 
The present invention relates to { HEAD ~ an apparatus } , system , and method for modifying the flow of { TAIL ~ water } in a channel
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH