The resevoir is located to the right of the undershoot.
The undershoot itself is part of the Leeds Country Way walking route so you can amble around amongst the approach lights at will! Doing so gives an impression of the task involved though if the undershoot were ever to be levelled. Some of those approach lights stand on poles that must at least 15m high. Even the creation of a 150m level undershoot would therefore require over 100,000 cubic metres of earth (150 x 45 x 15). Goodbye Plane Tree Hill perhaps??
682