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