DAMS UP is a term used to describe the process of constructing dams to control the flow of water. The crossword solutions for this term are STEMS (5 letters) and EMBANKS (7 letters). STEMS refers to the structure of the dam, which is typically made up of concrete or steel walls that are built across a river or other body of water. EMBANKS refers to the embankments that are built around the dam to contain the water and prevent flooding.