A weir is a small dam built across a river to control the upstream water level. Weirs have been used for ages to control the flow of water in streams, rivers, and other water bodies.

Since 1957, a weir (technically a type of dam) on Cowichan Lake has controlled dry-season outflow into the Cowichan River to meet the needs of downstream water users and support ecosystems.

A dam is structure built across a river to hold water back, it can be used to store water, control flooding or make electricity. A weir is similar to a dam but it is a lot lower. Dam Removal ...

While mining companies try to capitalise on the increased demand for critical minerals, such as lithium and nickel, needed to ...