A spillway is known in the UK as overflow
channels, are structures that offer controlled release of flows from a dam or
levee into an area downstream. Spillways release floods so that water does not
overtop and destroy the dam; water does not regularly flow over a spillway
unless there is a flood. Typically spillways are round; this particular star-shaped
one is located at the Kechut Reservoir near Jermuk in Armenia. We have already
done a standalone feature on the round shaped bell-mouth spillways, but I have
never seen a star-shaped spillway until now.
