Difference between a dam and a barrage?

Answer 1

The following Answer has been given by JAYPEE construction company under their web site:http://www.jhpl.com/hp-faq.htm.
Both the dam and barrage are barriers constructed across a river or natural water course for diverting water into a canal mainly for purposes of irrigation, water supply etc. or into a channel or a tunnel for generation of power.
In case of a barrage, its entire length across the river i.e. between the banks is provided with gates having their bottom sill near the river bed level. Thus, the storage behind the barrage is solely created by the height of the gates.
The dam on the other hand has spillway gates almost near its top level and the storage behind the dam is mainly due to the height of concrete structure and partially due to the gate height.
In both the cases, however, the number and size of gates is adequate to pass the design flood during monsoons.

Answer 2

is the dam is big or barrage..?

Answer 3

basically dam is a barrier to control the flow of water and barrageis an artificial obstruction at the mouth of the river

Answer 4

basically dam is an o+bstruction to thewater to control the level of water