What Are Grassed Waterways?
Grassed waterways are earthen channels that have been graded or shaped and then planted with vegetation. Waterways are created by making flat horizontal drainage ways with a downhill slope of less than 5%. Their purpose is to carry surface water to an appropriate drainage area at a slow enough velocity to prevent erosion. These wide, shallow channels are typically lined with grass, which helps preserve the soil and slow the water’s flow.
Why Install Grassed Waterways?
A grassed waterway is an efficient and cost-effective tool for providing drainage without eroding the soil while also preventing standing water that can ruin crops. They’re used to prevent gullies from forming, improve and protect the water quality, avoiding flooding fields and to carry runoff while preserving the land.
The Importance of Agricultural Water Management
Periods of drought, heavy rain and extreme heat make water supplies unpredictable. The goal of agricultural water management is to conserve natural resources while providing a sufficient quality water supply for both animals and crops. This process also protects downstream ecosystems and users. Managing an agricultural water supply includes efficient planning for irrigation, watershed and drainage, as well as water storage and conservation.