Man made lakes used for the storage of water are typically known as reservoirs.
ANSWER
I might add the following for some interesting facts.
Artificial, also called a reservoir: A lake created by flooding land behind a dam, by human excavation, or by the flooding of an open pit mine (sometimes called a quarry). Some of the world's largest lakes are reservoirs. Husain Sagar is a reservoir in India built in 1562.
Above retrieved from Wikipeadia,
http://en.wikipedia.org/wiki/Lake#Types_of_lakes
Viper1
Usually by damming a stream or river but some are actually dug.
There are generally two ways to do this.
* Dam a river so that a body of water builds up behind the dam * Divert a river into a hollow area - one either natural or man-made.
none of the great lakes are man made all of them were made from nature
No they are not.
MAN-made resources are resources created by man. E.g.buildings,bridges,cars and furniture.
yes.
Lakes Waccamaw and Mattamuskeet
All lakes in Georgia are man made. This does not include the swamp in south Georgia which are natural, protected wet lands.
No. Portage Lake in Pinckney Michigan was not man made. :)
Lake Merritt is a man made lake in Oakland
The oceans are NATURAL made.(made my nature).A building, some lakes, are MAN made.(made by man).
No not all lakes in Canada are man made. The Great Lakes for example were made when the glaciers of the last Ice Age were receding.
I believe around 10,000 lakes.
No. Some are man made.