If the reservoir cannot be lowered fast enough through outlet works or other control structures,
a "controlled" breach of an earth dam can be accomplished to speed the reservoir-lowering
process. The controlled breach should be in a location that would produce the least damage
downstream from the released reservoir water. It is important to remember that a controlled
breach is a dangerous operation that can quickly get out of control and lead to catastrophic
failure. Potential risks associated with a controlled breach include unexpected floods and
uncontrollable erosion.