upstream

A higher level on the upstream side creates pressure, driving water in the subsurface below the dam to the opposite end of the model.

On certain days you can actually see fish swimming upstream, and then they'll turn around and come back.

A weir is a small dam built across a river to control the upstream water level.

In this case, often two cofferdams are necessary to block off the river on the upstream and downstream ends.

Low head dams almost always have subcritical flow upstream.

We can then over-rotate the large gates and allow a controlled flow of water upstream into the reservoir that we've created.

That means adding a weir across a river will increase the water level upstream.

Usually made from concrete, the purpose of a low head dams is to raise the water level upstream on a river.

Once we've stopped the danger element of the tide and got a differential, we've effectively created a reservoir upstream of the Barrier.

It smooths out the peaks and valleys of water demand not just on your pumps but all your upstream infrastructure, including your water treatment plant and raw water supply.