Creation of small weirs to store water during dry season a better alternative to big dams?

Published on February 13, 2015 18:37 by Dr. Vidhya CHITTOOR VISWANATHAN, Impact Director at AquaSPE in Government

The installation of a weir of 20,000litres holding capacity in Kenya http://bit.ly/1DNWOvS

seems to be working well to serve dual purpose of acting as a storage for excess rain water thereby preventing floods and serving as a water source during droughts.Should the new focus on IWRM be on installation of weirs with small capacity over building larger dams with greater evaporation and ecological concerns?

Taxonomy

Catchment Management
Reservoir
Hydraulic Structures