Water is diverted using instream barriers such as dams , weirs, culverts, canals, and pipes that are used in the construction process. Land clearing typically means using equipment ranging from chain saws to large bulldozers, excavators, backhoes or other heavy machinery to remove obstacles like trees, bushes, rocks, uneven dirt and other debris from a parcel of land. If the parcel is being cleared for fire safety, to make it possible to walk around the property or to restore overgrown views, then a selective clearing will remove all underbrush and debris but leave established and desirable trees intact. Regrading is the process of grading for raising and/or lowering the levels of land. Regrading is the process of grading for raising and/or lowering the levels of land. Such a project can also be referred to as a regrade.
Regrading may be done on a small scale (as in preparation of a house site)[3] or on quite a large scale...