There is a large topogrphical outcrop that may have interference with the fish tubes in high winds if it is attempted to span a 40m from current H1 to spreader bar + 15m from fish realase spreader bar to Upstream bar mechanism anchor . The wind would be a concern.
Propose the addition of 1 bracket upstream of current design, in order to avoid contact from tube sag at a topographical ledge which is located above the start of organic fish ladder. The addition of the bracket would also minimize the large lateral loads that would be generated from trying to move the fish tubes up into stowed possition at a span of 55m in current design.
Shadows on wall , give a depth cue and show that there is clearance to the wall with Rev4 proposed design.
Alejandro
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