 They can be used alone, implanted into pilot holes in the soil, or used as a device to secure other bioengineering materials such as rolled erosion control products and coir logs.Fascines are similar live branches strapped together and laid horizontally across streambank contours to impede or prevent the flow of water and curb erosion.Brush mattresses, also known as live brush mats or brush matting is a technique used to form immediate protective cover of a streambank.