Dam
From Tardis Wiki, the free Doctor Who reference
A dam was a structure built to control the flow of water.
Ghum claimed that the Basks had violated the Co-existence Code by building a dam. (PROSE: The Oxaqua Incident)
The Eighth Doctor destroyed a fire elemental in Middletown by having some of the townspeople blow up the local dam. The resulting flood cooled and killed the elemental. (PROSE: The Burning)
In 1969, Rory Williams was caught and shot by Canton Delaware at Glen Canyon Dam. (TV: Day of the Moon)