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Dennis Holt
Entry level engineer
Asked a question last year

What is Pickup Weir Structure?

What is Pickup Weir Structure? Why its call pickup? Where it is use?

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Primarily pickup weir doesnt have any reservoir to store water, its simply a wall of obstruction over that surplus water flows. Its created of concrete, rocks or composite materials. Whereas barrage may be a structure used on impede water course manufactured from steel gates.

Pickup Weir is weir used for special purposes i.e., picking up water from the main reservoir/dam for raising the water. Generally constructed on d/s(downstream) side few kilometers away from the main dam(or weir or barrage)
* Main purposes:
– Raising water level for diverting water
to canal headworks in case where no
chances available for construction of
canal headworks.
– Raising water level for NAVIGATION
– Raising water level for HYDROPOWER
GENERATION
– for Reduction in ideal canal length where
command area is far away from the
reservoir of the main dam.

Theodore Ray
Planning and development surveyor

Weirs are fixed barriers across a river or stream that force water to flow over their tops, where the height of the water above the weir can be used to calculate flow.