Valley fill definition
Valley fill means a fill structure consisting of any material, other than organic material, that is placed in a valley where side slopes of the existing valley, measured at the steepest point, are greater than 20 degrees, or where the average slope of the profile of the valley from the toe of the fill to the top of the fill is greater than 10 degrees.
Valley fill means a fill structure consisting of material placed in a valley where the natural side slopes measured at the steepest point are greater than twenty degrees or the average slopes measured at the steepest point are greater than twenty degrees or the average