7 Ton Waterfall??

[dc]

I am having to crop down the photo to fit the paramaters of this site. of from the 1st photo from the original post, if looking at the tile each end of the waterfall tile line to tile line is 10 feet. the bench arches back around an is not straight across. If I measure the back side of the rockwork from side to side(around the arch it is 23ft 9 inches and is 34 inches tall across the back, and tiers down towards the side slightly. I will include a photo of the backside (again cropped) and a photo of myself sitting on the bench if it helps give a size reference (I am 6ft 225lb)