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