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