Abstract: A farm implement adapted to install plastic lined irrigation gates in rice levees and the like to aid in flood control. The machine comprises an elongated, rigid frame comprised of a trio of rigid struts. The rear of the frame terminates in a rigid scoop of concave cross section having a width somewhat wider than the frame. An elongated dipper blade, also of concave cross section, is pivotally coupled to the frame in spaced-apart, generally parallel relation with respect to the scoop. The dipper blade may be removed by hydraulic means between dirt cupping, dirt releasing and ground engaging positions whereby to dig a suitable contoured trench adjacent the levee after a hole has been cut by the scoop. A plastic sheet is then placed over the hole and trench, and dirt from the dipper blade is deposited upon the plastic sheet to secure same. Prior to cutting another gate, the dipper blade is drawn over the plastic sheet and the dirt deposited thereon to properly contour the gate for subsequent flood control.