Leaky weirs and landscape rehydration
The Mulloon Institute strives to restore landscape function. They carefully plan and design structures to fit neatly into the landscape. One example is the leaky weir.
These leaky weirs are built from natural materials such as rocks, logs, soil and, importantly, vegetation which, among other things, binds the structures together.
The structures are designed to raise the water level of the stream, and to slow and filter the flow, giving it a chance to infiltrate and recharge the groundwater.
Coupled with improved land management, these rehydrated landscapes provide more reliable stream flows and improved water quality.
During wet times, the flow spreads out across the floodplain.
In dry times, the water flow remains beneath the surface and replenishes the creek.
This allows for enhanced agricultural productivity and improved conditions for wildlife, and gives us rehydrated landscapes that are more resilient to climatic extremes.
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