Once the water disappears down the hole, it drops approximately 70 feet straight down, then levels off in the tunnel and runs at speed for 200feet, turns a left hand bend, then runs about another 480feet to the tunnel outlet, where it gushes into the river Derwent, at which point, its met immediately by a concrete cutwater, which splits the gush into two halves.
The water disappears down the hole, drops nearly 70 feet, then levels out in the tunnel below, it gushes 200ft at speed turns a left hand bend, travels another 450ft and out of the end of the tunnel into the river Derwent.
Thank you. There are some shots in the video after this one (Relaxing scenes at Lady Bower Reservoir) which show the water coming out below & the river further down.
Unlikely, its a nearly 70ft completely vertical drop, concrete all the way down, a fall of 40ft is usually enough to kill a human being, and the presence of the water would afford you no cushioning whatsoever. In short... best leave well alone!!!