dam up

(redirected from dams up)

dam up

To block something from flowing freely, typically water in a stream, river, etc. A noun or pronoun can be used between "dam" and "up." If we don't dam up the river, this rain will cause a flood.
See also: dam, up

dam something up

to erect a barrier in a river, stream, brook, etc. We are going to have to dam this stream up to make a pond for the cattle. Let's dam up this stream. Why is this river dammed up?
See also: dam, up
References in periodicals archive ?
Some dam operators recognize that they can't bring their dams up to current environmental standards, especially those of the Endangered Species Act, so the operators are removing these structures.