During the 100 years up to the end of World War II, experience in design and construction of dams advanced in many directions.
Most of them are located in gullies or ravines, so if a dam breaks, leachate would advance downstream provoking an important environmental impact.
As technology advanced, dams with thin buttresses of reinforced concrete supporting an inclined upstream face were built.
The paper advances the international small dams policy, agricultural water management and hydrology literatures, evidencing the need for effective integrated policy to mitigate dual extreme cumulative threats.
The BBC's Jim Muir, who is in the northern city of Irbil, says Kurdish forces are planning to advance eastwards from the Mosul dam to the plains of Nineveh and westwards towards Sinjar.
They advanced towards the Peruća Hydroelectric Dam and captured it by January 28 , 1993 shortly after Serb militiamen chased away the UN peacekeepers protecting the dam.
Mosul Dam fell on August 7 during a lightning advance by the Islamic State where it seized large chunks of Kurdish-held territory and sent minority communities fleeing.
At this point it is not clear whether the Syrian Army will bypass the dam or attempt to secure it before advancing on Raqqa.
This paper evaluates the effectiveness of small dams to contain the advance of an incipient population of the invasive Procambarus clarkii in a mountain stream harboring the European southernmost population of the endangered Austropotamobius pallipes.
Surprisingly advanced techniques were used, including a dam with sluice gates allowing regulation of the flow of the water stored.
