The prefabricated braces are secured in {HEAD ~ an appropriate configuration} to modify {TAIL ~ the flow} of water in a manner that will reduce the force of the water on one or more banks of the channel or on the channel bed 
The prefabricated braces are secured in { HEAD ~ an appropriate configuration } to modify { TAIL ~ the flow } of water in a manner that will reduce the force of the water on one or more banks of the channel or on the channel bed
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH